* [PATCH 00/89] Major reorganization of <linux/sched.h>
@ 2017-02-06 13:28 Ingo Molnar
2017-02-06 13:28 ` [PATCH 01/89] sched/core: Clean up comments Ingo Molnar
` (90 more replies)
0 siblings, 91 replies; 119+ messages in thread
From: Ingo Molnar @ 2017-02-06 13:28 UTC (permalink / raw)
To: linux-kernel
Cc: Andrew Morton, Linus Torvalds, Mike Galbraith, Oleg Nesterov,
Peter Zijlstra, Thomas Gleixner
So 25+ years ago, in Linux-0.01, include/linux/sched.h was already
the biggest core kernel header file:
triton:~/linux-0.01/linux/include/linux> ls -lS
total 44
-rw-r--r-- 1 mingo mingo 5686 Sep 17 1991 sched.h
-rw-r--r-- 1 mingo mingo 4770 Sep 11 1991 fs.h
-rw-r--r-- 1 mingo mingo 2712 Jul 10 1991 hdreg.h
-rw-r--r-- 1 mingo mingo 2380 Sep 8 1991 sys.h
-rw-r--r-- 1 mingo mingo 2014 Sep 8 1991 tty.h
-rw-r--r-- 1 mingo mingo 1360 Sep 17 1991 config.h
-rw-r--r-- 1 mingo mingo 304 Jun 19 1991 head.h
-rw-r--r-- 1 mingo mingo 269 Jul 9 1991 kernel.h
-rw-r--r-- 1 mingo mingo 219 Jul 29 1991 mm.h
... and today, if we do not count driver or networking headers like
pci_ids.h or skbuff.h, the v4.10-rc7 version of sched.h is ~20 times
larger and still the biggest core kernel header file:
triton:~/tip/include/linux> ls -lS
total 10352
...
-rw-rw-r-- 1 mingo mingo 106793 Feb 6 13:48 sched.h
-rw-rw-r-- 1 mingo mingo 104369 Feb 5 10:52 fs.h
...
-rw-rw-r-- 1 mingo mingo 85643 Feb 5 10:50 lsm_hooks.h
-rw-rw-r-- 1 mingo mingo 78213 Feb 5 10:52 mm.h
...
The <linux/sched.h> header is also included in almost every driver,
it's built into over 2,200 files, or around 10% of all kernel files.
sched.h is even larger when fully preprocessed - the following
file is the result of expanding a single '#include <linux/sched.h>'
line on v4.10-rc7, x86-defconfig:
triton:~/tip> ls -l kernel/sched/test.i
-rw-rw-r-- 1 mingo mingo 682459 Feb 6 13:57 kernel/sched/test.i
triton:~/tip> wc -l kernel/sched/test.i
22196 kernel/sched/test.i
Those 22K lines all get built for the 2,000+ .c kernel files that
include <linux/sched.h> ... even if the .c file is small.
The main reason why it's so large is that since Linux 0.01 it had
been the Rome of the kernel: all headers lead to it, due to almost
every kernel subsystem having fields embedded in task_struct.
sched.h has to know about the various structure definitions of
various kernel subsysems - even if the scheduler never makes direct
use of 90% of those fields.
This series reorganizes, decouples and shrinks linux/sched.h both
in its direct linecount and in terms of preprocessed size.
With these changes, preprocessed size drops significantly:
triton:~/tip> ls -l kernel/sched/test.i
-rw-rw-r-- 1 mingo mingo 450063 Feb 6 14:01 kernel/sched/test.i
triton:~/tip> wc -l kernel/sched/test.i
14891 kernel/sched/test.i
That's a size reduction of about 33%. The linecount of sched.h itself
went down from ~3,600 lines to ~1,500 lines.
This reduction has a material impact on kernel build performance. Here's
the GCC build times of a single .c module to a .o object, that only
includes <linux/sched.h>, with various configs on 64-bit x86:
[ Smaller is better. Standard deviation: smaller than 1 msec ]
allnoconfig defconfig allmodconfig
------------------------------------------------------------------------------
v4.10-rc7: 57.3 ms 69.1 ms 89.9 ms
-patched: 40.9 ms (-40%) 49.0 ms (-41%) 68.8 ms (-30%)
On an allyesconfig kernel these patches should save a build time of about
30 seconds CPU time.
How is this done? By using 3 approaches:
- 'Splitting' up sched.: moving non-driver scheduler interfaces from sched.h
into new headers, which are under include/linux/sched/.
There's 27 such headers now:
triton:~/tip> ls -l include/linux/sched
total 132
-rw-rw-r-- 1 mingo mingo 1190 Feb 6 14:00 autogroup.h
-rw-rw-r-- 1 mingo mingo 2585 Feb 6 14:00 clock.h
-rw-rw-r-- 1 mingo mingo 2451 Feb 6 14:00 coredump.h
-rw-rw-r-- 1 mingo mingo 759 Feb 6 14:00 cpufreq.h
-rw-rw-r-- 1 mingo mingo 5114 Feb 6 14:00 cputime.h
-rw-rw-r-- 1 mingo mingo 558 Feb 6 14:00 deadline.h
-rw-rw-r-- 1 mingo mingo 1348 Feb 6 14:00 debug.h
-rw-rw-r-- 1 mingo mingo 2494 Feb 3 21:55 fork.h.orig
-rw-rw-r-- 1 mingo mingo 539 Feb 6 14:00 hotplug.h
-rw-rw-r-- 1 mingo mingo 1772 Feb 6 14:00 idle.h
-rw-rw-r-- 1 mingo mingo 201 Feb 6 14:00 init.h
-rw-rw-r-- 1 mingo mingo 1460 Feb 6 14:00 jobctl.h
-rw-rw-r-- 1 mingo mingo 1160 Feb 6 14:00 loadavg.h
-rw-rw-r-- 1 mingo mingo 3750 Feb 6 14:00 mm.h
-rw-rw-r-- 1 mingo mingo 1208 Feb 6 14:00 nohz.h
-rw-rw-r-- 1 mingo mingo 1229 Feb 6 14:00 numa_balancing.h
-rw-rw-r-- 1 mingo mingo 1715 Feb 6 14:00 prio.h
-rw-rw-r-- 1 mingo mingo 1411 Feb 6 14:00 rt.h
-rw-rw-r-- 1 mingo mingo 17621 Feb 6 14:00 signal.h
-rw-rw-r-- 1 mingo mingo 1007 Feb 6 14:00 stat.h
-rw-rw-r-- 1 mingo mingo 2475 Feb 6 14:00 sysctl.h
-rw-rw-r-- 1 mingo mingo 3947 Feb 6 14:00 task.h
-rw-rw-r-- 1 mingo mingo 2950 Feb 6 14:00 task_stack.h
-rw-rw-r-- 1 mingo mingo 6285 Feb 6 14:00 topology.h
-rw-rw-r-- 1 mingo mingo 1868 Feb 6 14:00 user.h
-rw-rw-r-- 1 mingo mingo 1846 Feb 6 14:00 wake_q.h
-rw-rw-r-- 1 mingo mingo 815 Feb 6 14:00 xacct.h
... and these headers now contain twice as much code as sched.h
itself - while 90% of the sched.h users still only have to
include sched.h and none of the extra headers.
- 'Decoupling' sched.h types from five major kernel headers that
sched.h got entangled with over the years:
signal.h
mm_types.h
topology.h
wait.h
rculist.h
It's an interesting detail that wait.h was implicitly included
in all sched.h inclusions, via the spaghetti of secondary
dependencies. I.e. including sched.h would include wait.h,
and including wait.h alone in a driver did not make sense,
as it would not work without the sched.h primitives.
The new sched.h does not include any of these headers anymore.
- 'Slimming' sched.h: there were a number of unnecessary, unjustified
header inclusions in it that came there historically and were never
removed. There was also other types of fat, such as dead interfaces.
A complicating problem is that because sched.h is so central, lots of
code that included it learned to rely on the often incidental inclusions
of various kernel headers. Removing those headers from sched.h broke
the build in those files - so all these dependencies had to be identified
and fixed.
For all those reasons the scope of the series is pretty invasive:
1196 files changed, 7431 insertions(+), 5815 deletions(-)
... but I've done thousands of build tests (many of them cross-arch builds),
and I think most of the build bugs are shaken out already. Inevitably there
are some left - I'll work on finding and fixing those.
Due to the fundamental intrusiveness of this series I don't think it's
a good idea to include this series in linux-next, so my plan is, if
there's rough agreement about this approach, that I'll send it to Linus
near the end of the merge window, to cause the least amount of disruption
to pending patches in linux-next.
This is one of those high impact patch series - but I think all around
I think it's worth the pain, as the resulting sched.h is so much nicer.
I have more changes planned to further simplify and clean up sched.h,
but wanted to get this series out for discussion before advancing
any further.
The series can also be accessed in the WIP.sched/core branch of the -tip
tree:
git git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git WIP.sched/core
(The series has a base commit of 248fd141c4c1.)
Thanks,
Ingo
Ingo Molnar (89):
sched/core: Clean up comments
delayacct: Include <uapi/linux/taskstats.h>
sched/rq_clock: Consolidate the ordering of the rq_clock methods
sched/core: Remove unnecessary #include headers
sched/topology: Split out scheduler topology code from core.c into topology.c
sched/topology: Split out scheduler topology interfaces from <linux/sched.h> into <linux/sched/topology.h>
sched/idle: Create <linux/sched/idle.h> for idle CPU related definitions
sched/idle: Move wake_up_if_idle prototype to <linux/sched/idle.h>
sched/wake_q: Move the wake-queue types and interfaces from sched.h into <linux/sched/wake_q.h>
sched/clock: Introduce <linux/sched/clock.h>
sched/headers, delayacct: Move the 'struct task_delay_info' definition from <linux/sched.h> to <linux/delayacct.h>
sched/abi: Introduce <uapi/linux/sched/types.h>
sched/loadavg: Move loadavg related definitions from <linux/sched.h> to <linux/sched/loadavg.h>
sched/autogroup: Collect extern APIs into <linux/sched/autogroup.h>
sched/autogroup: Rename auto_group.[ch] to autogroup.[ch]
sched/idle: Move polling methods to <linux/sched/idle.h>
sched/idle: Remove tsk_is_polling()
sched/core: Move task->mm handling methods to <linux/sched/mm.h>
sched/core: Move task->mm coredumping related defines and methods from <linux/sched.h> to <linux/sched/coredump.h>
sched/headers, signals: Separate out task_struct::signal and task_struct::sighand types and accessors into <linux/sched/signal.h>
sched/headers: Remove unused 'task_can_switch_user()' prototype
sched/headers: Move 'struct user_struct' definition and APIs to the new <linux/sched/user.h> header
sched/headers, softlockup: Move softlockup detector watchdog methods to <linux/nmi.h>
sched/headers: Remove #include <linux/capability.h> from <linux/sched.h>
sched/headers, cgroups: Remove the threadgroup_change_*() wrappery
sched/headers: Remove unused <linux/cgroup-defs.h> include from <linux/sched.h>
sched/headers: Move 'struct pacct_struct' and 'struct cpu_itimer' form <linux/sched.h> to <linux/sched/signal.h>
sched/cpufreq: Move the cpufreq interface to <linux/sched/cpufreq.h>
sched/headers: Move more mm_struct related functionality from <linux/sched.h> to <linux/sched/mm.h>
sched/headers: Move the 'init_mm' declaration from <linux/sched.h> to <linux/mm_types.h>
sched/headers: Move in_vfork() from <linux/sched.h> to <linux/sched/mm.h>
sched/numa: Split <linux/sched/numa_balancing.h> out of <linux/sched.h>
sched/headers: Move the JOBCTL_ defines and methods from <linux/sched.h> to <linux/sched/jobctl.h>
sched/core: Move <asm/paravirt.h> include to kernel/sched/sched.h
kasan, sched/headers: Remove <linux/sched.h> from <linux/kasan.h> and uninline kasan_enable/disable_current()
sched/headers: Remove <linux/cred.h> inclusion from <linux/sched.h>
sched/headers: Remove <asm/ptrace.h> from <linux/sched.h>
sched/headers: Remove <linux/rtmutex.h> from <linux/sched.h>
sched/headers: Remove various unrelated headers from <linux/sched.h>
sched/headers: Move CONFIG_TASK_XACCT bits out of <linux/sched.h> into <linux/sched/xacct.h>
sched/headers: Move signal wakeup & sigpending methods from <linux/sched.h> into <linux/sched/signal.h>
sched/headers: Move the memalloc_noio_*() APIs to <linux/sched/mm.h>
sched/headers: Remove <linux/gfp.h> include from <linux/sched.h>
sched/headers: Move task statistics from <linux/sched.h> to <linux/sched/stat.h>
mm/vmacache, sched/headers: Introduce 'struct vmacache' and move it from <linux/sched.h> to <linux/mm_types>
sched/headers: Move the NOHZ APIs from <linux/sched.h> to <linux/sched/nohz.h>
sched/headers: Move debugging functions from <linux/sched.h> to <linux/sched/debug.h>
sched/headers, time/timekeeping: Move the xtime_update() prototype from <linux/sched.h> to <linux/time.h>
sched/headers: Move <asm/current.h> include from the middle of <linux/sched.h> to the header portion
sched/core: Convert ___assert_task_state() link time assert to BUILD_BUG_ON()
sched/headers: Split hotplug CPU interfaces out of <linux/sched.h> into <linux/sched/hotplug.h>
sched/headers: Split <linux/sched/task.h> out of <linux/sched.h>
sched/headers: Simplify <linux/sched/task.h> dependencies
sched/headers: Make the include/linux/sched/*.h headers build standalone
sched/core: Clean up <linux/sched.h> structure predeclarations and remove stale entries
sched/headers: Move the PREEMPT_COUNT defines from <linux/sched.h> to <linux/preempt.h>
sched/headers: Split <linux/sched/task_stack> out of <linux/sched.h>
sched/headers: Move the 'root_task_group' declaration to <linux/sched/autogroup.h>
sched/core: Move the get_preempt_disable_ip() inline to sched/core.c
signals: Split out <linux/signal_types.h> from <linux/signal.h>
sched/headers: Reduce <linux/sched.h> signal API dependency
mm/headers, sched/headers: Split <linux/mm_types_task.h> out of <linux/mm_types.h>
sched/headers: Remove the <linux/mm_types.h> dependency from <linux/sched.h>
sched/headers: Remove 'init_pid_ns' prototype from <linux/sched.h>
sched/headers: Move 'init_task' and 'init_thread_union' from <linux/sched.h> to <linux/sched/task.h>
sched/headers: Use <linux/rcuupdate.h> instead of <linux/rculist.h> in <linux/sched.h>
sched/headers: Move the task_lock()/unlock() APIs to <linux/sched/task.h>
sched/headers: Split cputime functionality out of <linux/sched.h>, into <linux/sched/cputime.h>
sched/headers: Move sched_info_on() and force_schedstat_enabled() from <linux/sched.h> to <linux/sched/stat.h>
sched/core: Remove unused prefetch_stack()
sched/headers, vfs/execve: Move the do_execve*() prototypes from <linux/sched.h> to <linux/binfmts.h>
sched/headers: Move kstack_end() from <linux/sched.h> to <linux/sched/task_stack.h>
sched/headers: Move exit_files() and exit_itimers() from <linux/sched.h> to <linux/sched/task.h>
sched/headers: Move _init() prototypes from <linux/sched.h> to <linux/sched/init.h>
sched/headers, timekeeping: Consolidate the timer tick function prototypes
sched/headers, mm: Move 'struct tlbflush_unmap_batch' from <linux/sched.h> to <linux/mm_types_task.h>
sched/headers: Move the get_task_struct()/put_task_struct() and related APIs from <linux/sched.h> to <linux/sched/task.h>
sched/core: Remove the tsk_cpus_allowed() wrapper
sched/core: Remove the tsk_nr_cpus_allowed() wrapper
sched/headers: Move the <linux/magic.h> include to <linux/sched/task_stack.h>
sched/headers: Remove spurious <linux/sched.h> inclusion dependencies
rcu: Separate the rcu synchronization types and APIs into <linux/rcupdate_wait.h>
timers: Remove the <linux/sysctl.h> include from <linux/timer.h>
x86/apic: Remove the <linux/pm.h> header inclusion from <asm/apic.h>
hrtimer: Remove the <linux/wait.h> include from <linux/hrtimer.h>
sched/headers: Remove the <linux/topology.h> include from <linux/sched.h>
sched/headers: Move the sched_exec() prototype to <linux/sched/task.h>
sched/headers: Remove #ifdefs from <linux/sched.h>
sched/headers: Clean up <linux/sched.h>
arch/alpha/include/asm/a.out-core.h | 1 +
arch/alpha/include/asm/mmu_context.h | 2 +
arch/alpha/kernel/osf_sys.c | 5 +-
arch/alpha/kernel/process.c | 3 +
arch/alpha/kernel/ptrace.c | 1 +
arch/alpha/kernel/signal.c | 3 +-
arch/alpha/kernel/traps.c | 3 +-
arch/alpha/math-emu/math.c | 1 +
arch/alpha/mm/fault.c | 2 +-
arch/arc/include/asm/mmu_context.h | 1 +
arch/arc/kernel/ctx_sw.c | 1 +
arch/arc/kernel/kgdb.c | 1 +
arch/arc/kernel/process.c | 3 +
arch/arc/kernel/ptrace.c | 1 +
arch/arc/kernel/signal.c | 2 +
arch/arc/kernel/stacktrace.c | 2 +
arch/arc/kernel/traps.c | 2 +-
arch/arc/kernel/troubleshoot.c | 3 +
arch/arc/mm/fault.c | 2 +-
arch/arc/mm/mmap.c | 3 +-
arch/arc/mm/tlb.c | 2 +
arch/arm/common/bL_switcher.c | 4 +-
arch/arm/include/asm/mmu_context.h | 2 +
arch/arm/include/asm/tlbflush.h | 7 +-
arch/arm/kernel/perf_regs.c | 1 +
arch/arm/kernel/process.c | 3 +
arch/arm/kernel/ptrace.c | 3 +-
arch/arm/kernel/smp.c | 2 +
arch/arm/kernel/stacktrace.c | 1 +
arch/arm/kernel/suspend.c | 1 +
arch/arm/kernel/swp_emulate.c | 1 +
arch/arm/kernel/sys_oabi-compat.c | 1 +
arch/arm/kernel/topology.c | 1 +
arch/arm/kernel/traps.c | 4 +-
arch/arm/mach-bcm/platsmp.c | 1 +
arch/arm/mach-omap2/pm-debug.c | 1 +
arch/arm/mach-rpc/ecard.c | 1 +
arch/arm/mm/alignment.c | 3 +-
arch/arm/mm/fault.c | 3 +-
arch/arm/mm/idmap.c | 1 +
arch/arm/mm/init.c | 2 +
arch/arm/mm/mmap.c | 3 +-
arch/arm/probes/kprobes/core.c | 1 +
arch/arm/probes/kprobes/test-core.c | 1 +
arch/arm/vfp/vfpmodule.c | 2 +-
arch/arm64/include/asm/compat.h | 1 +
arch/arm64/include/asm/mmu_context.h | 2 +
arch/arm64/kernel/debug-monitors.c | 1 +
arch/arm64/kernel/fpsimd.c | 2 +-
arch/arm64/kernel/kgdb.c | 2 +
arch/arm64/kernel/perf_regs.c | 1 +
arch/arm64/kernel/probes/kprobes.c | 1 +
arch/arm64/kernel/process.c | 3 +
arch/arm64/kernel/ptrace.c | 3 +-
arch/arm64/kernel/setup.c | 1 +
arch/arm64/kernel/smp.c | 2 +
arch/arm64/kernel/stacktrace.c | 2 +
arch/arm64/kernel/sys_compat.c | 1 +
arch/arm64/kernel/topology.c | 1 +
arch/arm64/kernel/traps.c | 5 +-
arch/arm64/mm/fault.c | 3 +-
arch/arm64/mm/kasan_init.c | 1 +
arch/arm64/mm/mmap.c | 3 +-
arch/avr32/include/asm/mmu_context.h | 2 +
arch/avr32/kernel/nmi_debug.c | 1 +
arch/avr32/kernel/process.c | 3 +
arch/avr32/kernel/ptrace.c | 1 +
arch/avr32/kernel/stacktrace.c | 1 +
arch/avr32/kernel/traps.c | 2 +-
arch/blackfin/include/asm/mmu_context.h | 2 +
arch/blackfin/kernel/dumpstack.c | 2 +
arch/blackfin/kernel/early_printk.c | 1 +
arch/blackfin/kernel/flat.c | 1 +
arch/blackfin/kernel/nmi.c | 1 +
arch/blackfin/kernel/process.c | 4 +
arch/blackfin/kernel/ptrace.c | 1 +
arch/blackfin/kernel/signal.c | 1 +
arch/blackfin/kernel/stacktrace.c | 1 +
arch/blackfin/kernel/trace.c | 4 +-
arch/blackfin/kernel/traps.c | 2 +
arch/blackfin/mach-common/ints-priority.c | 1 +
arch/blackfin/mach-common/smp.c | 1 +
arch/blackfin/mm/isram-driver.c | 1 +
arch/blackfin/mm/sram-alloc.c | 2 +
arch/c6x/kernel/process.c | 2 +
arch/c6x/kernel/ptrace.c | 1 +
arch/c6x/kernel/traps.c | 1 +
arch/cris/arch-v10/drivers/sync_serial.c | 2 +-
arch/cris/arch-v10/kernel/process.c | 3 +
arch/cris/arch-v10/kernel/ptrace.c | 1 +
arch/cris/arch-v10/kernel/signal.c | 1 +
arch/cris/arch-v10/kernel/traps.c | 2 +
arch/cris/arch-v10/mm/tlb.c | 2 +
arch/cris/arch-v32/drivers/sync_serial.c | 2 +-
arch/cris/arch-v32/kernel/process.c | 3 +
arch/cris/arch-v32/kernel/ptrace.c | 1 +
arch/cris/arch-v32/kernel/signal.c | 1 +
arch/cris/arch-v32/kernel/traps.c | 2 +
arch/cris/arch-v32/mm/tlb.c | 1 +
arch/cris/include/asm/pgtable.h | 2 +-
arch/cris/kernel/irq.c | 1 +
arch/cris/kernel/process.c | 1 +
arch/cris/kernel/stacktrace.c | 2 +-
arch/cris/kernel/time.c | 2 +-
arch/cris/kernel/traps.c | 1 +
arch/cris/mm/fault.c | 1 +
arch/cris/mm/tlb.c | 2 +
arch/frv/kernel/process.c | 3 +
arch/frv/kernel/traps.c | 3 +-
arch/frv/mm/elf-fdpic.c | 1 +
arch/frv/mm/init.c | 1 +
arch/frv/mm/mmu-context.c | 2 +
arch/h8300/kernel/process.c | 3 +
arch/h8300/kernel/ptrace_s.c | 2 +-
arch/h8300/kernel/signal.c | 1 +
arch/h8300/kernel/traps.c | 2 +
arch/hexagon/include/asm/mmu_context.h | 2 +
arch/hexagon/kernel/kgdb.c | 1 +
arch/hexagon/kernel/process.c | 3 +
arch/hexagon/kernel/ptrace.c | 1 +
arch/hexagon/kernel/signal.c | 2 +
arch/hexagon/kernel/smp.c | 1 +
arch/hexagon/kernel/stacktrace.c | 1 +
arch/hexagon/kernel/traps.c | 4 +-
arch/hexagon/kernel/vm_events.c | 1 +
arch/hexagon/mm/vm_fault.c | 1 +
arch/ia64/hp/sim/simserial.c | 1 +
arch/ia64/include/asm/mmu_context.h | 1 +
arch/ia64/include/asm/pgtable.h | 2 +-
arch/ia64/include/asm/processor.h | 2 -
arch/ia64/kernel/asm-offsets.c | 2 +-
arch/ia64/kernel/brl_emu.c | 2 +-
arch/ia64/kernel/entry.S | 23 -
arch/ia64/kernel/mca.c | 4 +-
arch/ia64/kernel/perfmon.c | 2 +
arch/ia64/kernel/process.c | 4 +
arch/ia64/kernel/ptrace.c | 2 +
arch/ia64/kernel/setup.c | 3 +
arch/ia64/kernel/sys_ia64.c | 2 +
arch/ia64/kernel/time.c | 3 +-
arch/ia64/kernel/traps.c | 3 +-
arch/ia64/kernel/unaligned.c | 2 +-
arch/ia64/kernel/uncached.c | 1 +
arch/ia64/mm/fault.c | 2 +-
arch/ia64/mm/init.c | 1 +
arch/ia64/sn/kernel/sn2/sn2_smp.c | 1 +
arch/m32r/include/asm/mmu_context.h | 2 +
arch/m32r/kernel/process.c | 3 +
arch/m32r/kernel/ptrace.c | 1 +
arch/m32r/kernel/smpboot.c | 1 +
arch/m32r/kernel/traps.c | 4 +
arch/m68k/include/asm/a.out-core.h | 1 +
arch/m68k/include/asm/mmu_context.h | 1 +
arch/m68k/kernel/process.c | 3 +
arch/m68k/kernel/ptrace.c | 1 +
arch/m68k/kernel/time.c | 1 +
arch/m68k/kernel/traps.c | 1 +
arch/m68k/mac/macints.c | 1 +
arch/m68k/sun3/mmu_emu.c | 1 +
arch/metag/include/asm/mmu_context.h | 1 +
arch/metag/kernel/process.c | 3 +
arch/metag/kernel/ptrace.c | 2 +
arch/metag/kernel/signal.c | 1 +
arch/metag/kernel/smp.c | 2 +
arch/metag/kernel/stacktrace.c | 2 +
arch/metag/kernel/traps.c | 3 +
arch/metag/mm/fault.c | 1 +
arch/metag/mm/init.c | 1 +
arch/microblaze/include/asm/mmu_context_mm.h | 2 +
arch/microblaze/kernel/exceptions.c | 1 +
arch/microblaze/kernel/heartbeat.c | 1 +
arch/microblaze/kernel/process.c | 3 +
arch/microblaze/kernel/ptrace.c | 1 +
arch/microblaze/kernel/timer.c | 1 +
arch/microblaze/kernel/traps.c | 1 +
arch/microblaze/kernel/unwind.c | 1 +
arch/microblaze/mm/pgtable.c | 1 +
arch/mips/cavium-octeon/smp.c | 1 +
arch/mips/include/asm/abi.h | 2 +
arch/mips/include/asm/elf.h | 2 +
arch/mips/include/asm/fpu.h | 1 +
arch/mips/include/asm/mmu_context.h | 2 +
arch/mips/kernel/branch.c | 2 +-
arch/mips/kernel/crash.c | 1 +
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include/linux/sched/cputime.h | 187 ++
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include/linux/sched/hotplug.h | 24 +
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include/linux/sched/task_stack.h | 121 +
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include/linux/sched/xacct.h | 48 +
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include/net/busy_poll.h | 2 +
include/net/scm.h | 1 +
include/rdma/ib.h | 1 +
include/sound/control.h | 1 +
include/target/target_core_base.h | 2 +
include/trace/events/sched.h | 2 +-
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kernel/kmod.c | 2 +
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kernel/sched/{auto_group.h => autogroup.h} | 1 +
kernel/sched/clock.c | 2 +
kernel/sched/completion.c | 3 +-
kernel/sched/core.c | 2275 ++-------------
kernel/sched/cpudeadline.c | 4 +-
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kernel/sched/cpupri.c | 4 +-
kernel/sched/cputime.c | 6 +-
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kernel/sched/rt.c | 29 +-
kernel/sched/sched.h | 49 +-
kernel/sched/stats.h | 111 -
kernel/sched/swait.c | 2 +-
kernel/sched/topology.c | 1658 +++++++++++
kernel/sched/wait.c | 3 +-
kernel/seccomp.c | 1 +
kernel/signal.c | 13 +-
kernel/smp.c | 1 +
kernel/smpboot.c | 1 +
kernel/sys.c | 7 +
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kernel/time/sched_clock.c | 1 +
kernel/time/tick-sched.c | 6 +-
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kernel/time/timer.c | 4 +-
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kernel/trace/ring_buffer_benchmark.c | 1 +
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kernel/trace/trace_events_trigger.c | 1 +
kernel/trace/trace_hwlat.c | 1 +
kernel/trace/trace_kprobe.c | 1 +
kernel/trace/trace_output.c | 2 +
kernel/trace/trace_selftest.c | 1 +
kernel/trace/trace_stack.c | 1 +
kernel/trace/trace_uprobe.c | 1 +
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kernel/tsacct.c | 4 +-
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kernel/uid16.c | 1 +
kernel/user.c | 1 +
kernel/user_namespace.c | 1 +
kernel/utsname.c | 2 +
kernel/utsname_sysctl.c | 1 +
kernel/watchdog.c | 3 +
kernel/watchdog_hld.c | 2 +
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lib/dma-debug.c | 2 +
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mm/kmemleak.c | 4 +-
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mm/memcontrol.c | 1 +
mm/memory-failure.c | 3 +-
mm/memory.c | 4 +
mm/memory_hotplug.c | 1 +
mm/mempolicy.c | 3 +
mm/migrate.c | 1 +
mm/mlock.c | 1 +
mm/mmu_context.c | 2 +
mm/mmu_notifier.c | 1 +
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mm/page_alloc.c | 1 +
mm/process_vm_access.c | 1 +
mm/rmap.c | 2 +
mm/shmem.c | 1 +
mm/slab.c | 1 +
mm/swapfile.c | 2 +
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mm/userfaultfd.c | 1 +
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mm/vmacache.c | 13 +-
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mm/zsmalloc.c | 1 +
net/9p/client.c | 2 +-
net/atm/common.c | 2 +-
net/atm/svc.c | 2 +-
net/ax25/af_ax25.c | 2 +-
net/bluetooth/af_bluetooth.c | 2 +
net/bluetooth/cmtp/capi.c | 2 +-
net/bluetooth/hci_request.c | 2 +
net/bluetooth/l2cap_sock.c | 1 +
net/bluetooth/rfcomm/sock.c | 1 +
net/bluetooth/sco.c | 1 +
net/bridge/br_sysfs_br.c | 1 +
net/bridge/br_sysfs_if.c | 1 +
net/caif/caif_socket.c | 2 +-
net/ceph/crypto.c | 1 +
net/core/ethtool.c | 2 +-
net/core/net-sysfs.c | 1 +
net/core/net_namespace.c | 2 +
net/core/netclassid_cgroup.c | 2 +
net/core/netprio_cgroup.c | 2 +
net/core/scm.c | 1 +
net/core/stream.c | 1 +
net/dccp/output.c | 1 +
net/decnet/af_decnet.c | 2 +-
net/dns_resolver/dns_query.c | 2 +
net/ipv4/devinet.c | 1 +
net/ipv4/tcp_cdg.c | 2 +
net/ipv6/addrconf.c | 1 +
net/irda/af_irda.c | 1 +
net/irda/ircomm/ircomm_tty.c | 2 +-
net/irda/irnet/irnet_ppp.c | 3 +-
net/iucv/af_iucv.c | 2 +-
net/kcm/kcmsock.c | 2 +
net/llc/af_llc.c | 2 +
net/mac80211/mesh_plink.c | 2 +
net/mac802154/llsec.c | 2 +
net/netfilter/xt_owner.c | 2 +
net/netrom/af_netrom.c | 2 +-
net/nfc/llcp_sock.c | 1 +
net/phonet/pep.c | 1 +
net/phonet/socket.c | 2 +
net/rose/af_rose.c | 2 +-
net/rxrpc/conn_client.c | 2 +
net/rxrpc/recvmsg.c | 2 +
net/rxrpc/sendmsg.c | 2 +
net/sched/em_meta.c | 1 +
net/sctp/socket.c | 1 +
net/sunrpc/auth.c | 1 +
net/sunrpc/svc.c | 2 +-
net/tipc/socket.c | 2 +
net/unix/af_unix.c | 2 +-
net/vmw_vsock/af_vsock.c | 1 +
net/vmw_vsock/virtio_transport_common.c | 1 +
net/x25/af_x25.c | 2 +-
samples/trace_events/trace-events-sample.c | 2 +-
security/apparmor/policy.c | 2 +
security/integrity/evm/evm_main.c | 2 +
security/keys/internal.h | 1 +
security/keys/keyctl.c | 2 +
security/keys/persistent.c | 2 +
security/keys/process_keys.c | 1 +
security/selinux/hooks.c | 3 +-
security/tomoyo/domain.c | 2 +
security/tomoyo/group.c | 2 +
security/tomoyo/util.c | 2 +
sound/core/control.c | 1 +
sound/core/hwdep.c | 1 +
sound/core/oss/pcm_oss.c | 1 +
sound/core/pcm_lib.c | 1 +
sound/core/pcm_native.c | 1 +
sound/core/rawmidi.c | 2 +-
sound/core/seq/oss/seq_oss_device.h | 2 +-
sound/core/seq/oss/seq_oss_writeq.c | 1 +
sound/core/seq/seq_fifo.c | 2 +
sound/core/seq/seq_memory.c | 1 +
sound/core/timer.c | 1 +
sound/firewire/bebob/bebob.h | 1 +
sound/firewire/dice/dice.h | 1 +
sound/firewire/digi00x/digi00x.h | 1 +
sound/firewire/fireworks/fireworks.h | 1 +
sound/firewire/oxfw/oxfw.h | 1 +
sound/firewire/tascam/tascam.h | 1 +
sound/isa/gus/gus_pcm.c | 2 +
sound/isa/msnd/msnd.c | 1 +
sound/isa/sb/emu8000.c | 2 +-
sound/isa/sb/emu8000_patch.c | 2 +
sound/isa/sb/emu8000_pcm.c | 2 +
sound/isa/wavefront/wavefront_synth.c | 1 +
sound/oss/dmabuf.c | 2 +
sound/oss/dmasound/dmasound_core.c | 1 +
sound/oss/midibuf.c | 2 +
sound/oss/msnd_pinnacle.c | 2 +
sound/oss/sound_config.h | 1 +
sound/oss/swarm_cs4297a.c | 2 +-
virt/kvm/async_pf.c | 1 +
virt/kvm/kvm_main.c | 4 +-
1196 files changed, 7431 insertions(+), 5815 deletions(-)
delete mode 100644 include/linux/cputime.h
create mode 100644 include/linux/mm_types_task.h
create mode 100644 include/linux/rcupdate_wait.h
create mode 100644 include/linux/sched/autogroup.h
create mode 100644 include/linux/sched/clock.h
create mode 100644 include/linux/sched/coredump.h
create mode 100644 include/linux/sched/cpufreq.h
create mode 100644 include/linux/sched/cputime.h
create mode 100644 include/linux/sched/debug.h
create mode 100644 include/linux/sched/hotplug.h
create mode 100644 include/linux/sched/idle.h
create mode 100644 include/linux/sched/init.h
create mode 100644 include/linux/sched/jobctl.h
create mode 100644 include/linux/sched/loadavg.h
create mode 100644 include/linux/sched/mm.h
create mode 100644 include/linux/sched/nohz.h
create mode 100644 include/linux/sched/numa_balancing.h
create mode 100644 include/linux/sched/signal.h
create mode 100644 include/linux/sched/stat.h
create mode 100644 include/linux/sched/task.h
create mode 100644 include/linux/sched/task_stack.h
create mode 100644 include/linux/sched/topology.h
create mode 100644 include/linux/sched/user.h
create mode 100644 include/linux/sched/wake_q.h
create mode 100644 include/linux/sched/xacct.h
create mode 100644 include/linux/signal_types.h
create mode 100644 include/uapi/linux/sched/types.h
rename kernel/sched/{auto_group.c => autogroup.c} (100%)
rename kernel/sched/{auto_group.h => autogroup.h} (97%)
create mode 100644 kernel/sched/topology.c
--
2.7.4
^ permalink raw reply [flat|nested] 119+ messages in thread
* [PATCH 01/89] sched/core: Clean up comments
2017-02-06 13:28 [PATCH 00/89] Major reorganization of <linux/sched.h> Ingo Molnar
@ 2017-02-06 13:28 ` Ingo Molnar
2017-02-06 13:28 ` [PATCH 02/89] delayacct: Include <uapi/linux/taskstats.h> Ingo Molnar
` (89 subsequent siblings)
90 siblings, 0 replies; 119+ messages in thread
From: Ingo Molnar @ 2017-02-06 13:28 UTC (permalink / raw)
To: linux-kernel
Cc: Andrew Morton, Linus Torvalds, Mike Galbraith, Oleg Nesterov,
Peter Zijlstra, Thomas Gleixner
Refresh the comments in the core scheduler code:
- Capitalize sentences consistently
- Capitalize 'CPU' consistently
- ... and other small details.
Cc: Mike Galbraith <efault@gmx.de>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
kernel/sched/core.c | 358 +++++++++++++++++++++++++++++++++++++-----------------------------------
1 file changed, 182 insertions(+), 176 deletions(-)
diff --git a/kernel/sched/core.c b/kernel/sched/core.c
index 10e18faaa632..87cf7ba82bd5 100644
--- a/kernel/sched/core.c
+++ b/kernel/sched/core.c
@@ -1,31 +1,10 @@
/*
* kernel/sched/core.c
*
- * Kernel scheduler and related syscalls
+ * Core kernel scheduler code and related syscalls
*
* Copyright (C) 1991-2002 Linus Torvalds
- *
- * 1996-12-23 Modified by Dave Grothe to fix bugs in semaphores and
- * make semaphores SMP safe
- * 1998-11-19 Implemented schedule_timeout() and related stuff
- * by Andrea Arcangeli
- * 2002-01-04 New ultra-scalable O(1) scheduler by Ingo Molnar:
- * hybrid priority-list and round-robin design with
- * an array-switch method of distributing timeslices
- * and per-CPU runqueues. Cleanups and useful suggestions
- * by Davide Libenzi, preemptible kernel bits by Robert Love.
- * 2003-09-03 Interactivity tuning by Con Kolivas.
- * 2004-04-02 Scheduler domains code by Nick Piggin
- * 2007-04-15 Work begun on replacing all interactivity tuning with a
- * fair scheduling design by Con Kolivas.
- * 2007-05-05 Load balancing (smp-nice) and other improvements
- * by Peter Williams
- * 2007-05-06 Interactivity improvements to CFS by Mike Galbraith
- * 2007-07-01 Group scheduling enhancements by Srivatsa Vaddagiri
- * 2007-11-29 RT balancing improvements by Steven Rostedt, Gregory Haskins,
- * Thomas Gleixner, Mike Kravetz
*/
-
#include <linux/kasan.h>
#include <linux/mm.h>
#include <linux/module.h>
@@ -143,7 +122,7 @@ const_debug unsigned int sysctl_sched_nr_migrate = 32;
const_debug unsigned int sysctl_sched_time_avg = MSEC_PER_SEC;
/*
- * period over which we measure -rt task cpu usage in us.
+ * period over which we measure -rt task CPU usage in us.
* default: 1s
*/
unsigned int sysctl_sched_rt_period = 1000000;
@@ -156,7 +135,7 @@ __read_mostly int scheduler_running;
*/
int sysctl_sched_rt_runtime = 950000;
-/* cpus with isolated domains */
+/* CPUs with isolated domains */
cpumask_var_t cpu_isolated_map;
/*
@@ -224,7 +203,7 @@ struct rq *task_rq_lock(struct task_struct *p, struct rq_flags *rf)
* If we observe the old cpu in task_rq_lock, the acquire of
* the old rq->lock will fully serialize against the stores.
*
- * If we observe the new cpu in task_rq_lock, the acquire will
+ * If we observe the new CPU in task_rq_lock, the acquire will
* pair with the WMB to ensure we must then also see migrating.
*/
if (likely(rq == task_rq(p) && !task_on_rq_migrating(p))) {
@@ -461,7 +440,7 @@ void wake_up_q(struct wake_q_head *head)
task = container_of(node, struct task_struct, wake_q);
BUG_ON(!task);
- /* task can safely be re-inserted now */
+ /* Task can safely be re-inserted now: */
node = node->next;
task->wake_q.next = NULL;
@@ -519,12 +498,12 @@ void resched_cpu(int cpu)
#ifdef CONFIG_SMP
#ifdef CONFIG_NO_HZ_COMMON
/*
- * In the semi idle case, use the nearest busy cpu for migrating timers
- * from an idle cpu. This is good for power-savings.
+ * In the semi idle case, use the nearest busy CPU for migrating timers
+ * from an idle CPU. This is good for power-savings.
*
* We don't do similar optimization for completely idle system, as
- * selecting an idle cpu will add more delays to the timers than intended
- * (as that cpu's timer base may not be uptodate wrt jiffies etc).
+ * selecting an idle CPU will add more delays to the timers than intended
+ * (as that CPU's timer base may not be uptodate wrt jiffies etc).
*/
int get_nohz_timer_target(void)
{
@@ -553,6 +532,7 @@ int get_nohz_timer_target(void)
rcu_read_unlock();
return cpu;
}
+
/*
* When add_timer_on() enqueues a timer into the timer wheel of an
* idle CPU then this timer might expire before the next timer event
@@ -1021,7 +1001,7 @@ struct migration_arg {
};
/*
- * Move (not current) task off this cpu, onto dest cpu. We're doing
+ * Move (not current) task off this CPU, onto the destination CPU. We're doing
* this because either it can't run here any more (set_cpus_allowed()
* away from this CPU, or CPU going down), or because we're
* attempting to rebalance this task on exec (sched_exec).
@@ -1055,8 +1035,8 @@ static int migration_cpu_stop(void *data)
struct rq *rq = this_rq();
/*
- * The original target cpu might have gone down and we might
- * be on another cpu but it doesn't matter.
+ * The original target CPU might have gone down and we might
+ * be on another CPU but it doesn't matter.
*/
local_irq_disable();
/*
@@ -1174,7 +1154,7 @@ static int __set_cpus_allowed_ptr(struct task_struct *p,
if (p->flags & PF_KTHREAD) {
/*
* For kernel threads that do indeed end up on online &&
- * !active we want to ensure they are strict per-cpu threads.
+ * !active we want to ensure they are strict per-CPU threads.
*/
WARN_ON(cpumask_intersects(new_mask, cpu_online_mask) &&
!cpumask_intersects(new_mask, cpu_active_mask) &&
@@ -1279,7 +1259,7 @@ static void __migrate_swap_task(struct task_struct *p, int cpu)
/*
* Task isn't running anymore; make it appear like we migrated
* it before it went to sleep. This means on wakeup we make the
- * previous cpu our target instead of where it really is.
+ * previous CPU our target instead of where it really is.
*/
p->wake_cpu = cpu;
}
@@ -1511,12 +1491,12 @@ EXPORT_SYMBOL_GPL(kick_process);
*
* - on cpu-up we allow per-cpu kthreads on the online && !active cpu,
* see __set_cpus_allowed_ptr(). At this point the newly online
- * cpu isn't yet part of the sched domains, and balancing will not
+ * CPU isn't yet part of the sched domains, and balancing will not
* see it.
*
- * - on cpu-down we clear cpu_active() to mask the sched domains and
+ * - on CPU-down we clear cpu_active() to mask the sched domains and
* avoid the load balancer to place new tasks on the to be removed
- * cpu. Existing tasks will remain running there and will be taken
+ * CPU. Existing tasks will remain running there and will be taken
* off.
*
* This means that fallback selection must not select !active CPUs.
@@ -1532,9 +1512,9 @@ static int select_fallback_rq(int cpu, struct task_struct *p)
int dest_cpu;
/*
- * If the node that the cpu is on has been offlined, cpu_to_node()
- * will return -1. There is no cpu on the node, and we should
- * select the cpu on the other node.
+ * If the node that the CPU is on has been offlined, cpu_to_node()
+ * will return -1. There is no CPU on the node, and we should
+ * select the CPU on the other node.
*/
if (nid != -1) {
nodemask = cpumask_of_node(nid);
@@ -1566,7 +1546,7 @@ static int select_fallback_rq(int cpu, struct task_struct *p)
state = possible;
break;
}
- /* fall-through */
+ /* Fall-through */
case possible:
do_set_cpus_allowed(p, cpu_possible_mask);
state = fail;
@@ -1610,7 +1590,7 @@ int select_task_rq(struct task_struct *p, int cpu, int sd_flags, int wake_flags)
/*
* In order not to call set_task_cpu() on a blocking task we need
* to rely on ttwu() to place the task on a valid ->cpus_allowed
- * cpu.
+ * CPU.
*
* Since this is common to all placement strategies, this lives here.
*
@@ -1684,7 +1664,7 @@ static inline void ttwu_activate(struct rq *rq, struct task_struct *p, int en_fl
activate_task(rq, p, en_flags);
p->on_rq = TASK_ON_RQ_QUEUED;
- /* if a worker is waking up, notify workqueue */
+ /* If a worker is waking up, notify the workqueue: */
if (p->flags & PF_WQ_WORKER)
wq_worker_waking_up(p, cpu_of(rq));
}
@@ -1867,7 +1847,7 @@ void wake_up_if_idle(int cpu)
raw_spin_lock_irqsave(&rq->lock, flags);
if (is_idle_task(rq->curr))
smp_send_reschedule(cpu);
- /* Else cpu is not in idle, do nothing here */
+ /* Else CPU is not idle, do nothing here: */
raw_spin_unlock_irqrestore(&rq->lock, flags);
}
@@ -1888,7 +1868,7 @@ static void ttwu_queue(struct task_struct *p, int cpu, int wake_flags)
#if defined(CONFIG_SMP)
if (sched_feat(TTWU_QUEUE) && !cpus_share_cache(smp_processor_id(), cpu)) {
- sched_clock_cpu(cpu); /* sync clocks x-cpu */
+ sched_clock_cpu(cpu); /* Sync clocks across CPUs */
ttwu_queue_remote(p, cpu, wake_flags);
return;
}
@@ -1907,8 +1887,8 @@ static void ttwu_queue(struct task_struct *p, int cpu, int wake_flags)
* MIGRATION
*
* The basic program-order guarantee on SMP systems is that when a task [t]
- * migrates, all its activity on its old cpu [c0] happens-before any subsequent
- * execution on its new cpu [c1].
+ * migrates, all its activity on its old CPU [c0] happens-before any subsequent
+ * execution on its new CPU [c1].
*
* For migration (of runnable tasks) this is provided by the following means:
*
@@ -1919,7 +1899,7 @@ static void ttwu_queue(struct task_struct *p, int cpu, int wake_flags)
*
* Transitivity guarantees that B happens after A and C after B.
* Note: we only require RCpc transitivity.
- * Note: the cpu doing B need not be c0 or c1
+ * Note: the CPU doing B need not be c0 or c1
*
* Example:
*
@@ -2027,7 +2007,8 @@ try_to_wake_up(struct task_struct *p, unsigned int state, int wake_flags)
trace_sched_waking(p);
- success = 1; /* we're going to change ->state */
+ /* We're going to change ->state: */
+ success = 1;
cpu = task_cpu(p);
/*
@@ -2076,7 +2057,7 @@ try_to_wake_up(struct task_struct *p, unsigned int state, int wake_flags)
smp_rmb();
/*
- * If the owning (remote) cpu is still in the middle of schedule() with
+ * If the owning (remote) CPU is still in the middle of schedule() with
* this task as prev, wait until its done referencing the task.
*
* Pairs with the smp_store_release() in finish_lock_switch().
@@ -2448,7 +2429,7 @@ int sched_fork(unsigned long clone_flags, struct task_struct *p)
*/
raw_spin_lock_irqsave(&p->pi_lock, flags);
/*
- * We're setting the cpu for the first time, we don't migrate,
+ * We're setting the CPU for the first time, we don't migrate,
* so use __set_task_cpu().
*/
__set_task_cpu(p, cpu);
@@ -2591,7 +2572,7 @@ void wake_up_new_task(struct task_struct *p)
/*
* Fork balancing, do it here and not earlier because:
* - cpus_allowed can change in the fork path
- * - any previously selected cpu might disappear through hotplug
+ * - any previously selected CPU might disappear through hotplug
*
* Use __set_task_cpu() to avoid calling sched_class::migrate_task_rq,
* as we're not fully set-up yet.
@@ -2945,7 +2926,7 @@ unsigned long nr_running(void)
}
/*
- * Check if only the current task is running on the cpu.
+ * Check if only the current task is running on the CPU.
*
* Caution: this function does not check that the caller has disabled
* preemption, thus the result might have a time-of-check-to-time-of-use
@@ -3104,8 +3085,8 @@ unsigned long long task_sched_runtime(struct task_struct *p)
* So we have a optimization chance when the task's delta_exec is 0.
* Reading ->on_cpu is racy, but this is ok.
*
- * If we race with it leaving cpu, we'll take a lock. So we're correct.
- * If we race with it entering cpu, unaccounted time is 0. This is
+ * If we race with it leaving CPU, we'll take a lock. So we're correct.
+ * If we race with it entering CPU, unaccounted time is 0. This is
* indistinguishable from the read occurring a few cycles earlier.
* If we see ->on_cpu without ->on_rq, the task is leaving, and has
* been accounted, so we're correct here as well.
@@ -3333,7 +3314,7 @@ pick_next_task(struct rq *rq, struct task_struct *prev, struct rq_flags *rf)
if (unlikely(p == RETRY_TASK))
goto again;
- /* assumes fair_sched_class->next == idle_sched_class */
+ /* Assumes fair_sched_class->next == idle_sched_class */
if (unlikely(!p))
p = idle_sched_class.pick_next_task(rq, prev, rf);
@@ -3350,7 +3331,8 @@ pick_next_task(struct rq *rq, struct task_struct *prev, struct rq_flags *rf)
}
}
- BUG(); /* the idle class will always have a runnable task */
+ /* The idle class should always have a runnable task: */
+ BUG();
}
/*
@@ -3421,7 +3403,8 @@ static void __sched notrace __schedule(bool preempt)
raw_spin_lock(&rq->lock);
rq_pin_lock(rq, &rf);
- rq->clock_update_flags <<= 1; /* promote REQ to ACT */
+ /* Promote REQ to ACT */
+ rq->clock_update_flags <<= 1;
switch_count = &prev->nivcsw;
if (!preempt && prev->state) {
@@ -3465,7 +3448,9 @@ static void __sched notrace __schedule(bool preempt)
++*switch_count;
trace_sched_switch(preempt, prev, next);
- rq = context_switch(rq, prev, next, &rf); /* unlocks the rq */
+
+ /* Also unlocks the rq: */
+ rq = context_switch(rq, prev, next, &rf);
} else {
rq->clock_update_flags &= ~(RQCF_ACT_SKIP|RQCF_REQ_SKIP);
rq_unpin_lock(rq, &rf);
@@ -3492,14 +3477,18 @@ void __noreturn do_task_dead(void)
smp_mb();
raw_spin_unlock_wait(¤t->pi_lock);
- /* causes final put_task_struct in finish_task_switch(). */
+ /* Causes final put_task_struct in finish_task_switch(): */
__set_current_state(TASK_DEAD);
- current->flags |= PF_NOFREEZE; /* tell freezer to ignore us */
+
+ /* Tell freezer to ignore us: */
+ current->flags |= PF_NOFREEZE;
+
__schedule(false);
BUG();
- /* Avoid "noreturn function does return". */
+
+ /* Avoid "noreturn function does return" - but don't continue if BUG() is a NOP: */
for (;;)
- cpu_relax(); /* For when BUG is null */
+ cpu_relax();
}
static inline void sched_submit_work(struct task_struct *tsk)
@@ -3792,7 +3781,8 @@ void rt_mutex_setprio(struct task_struct *p, int prio)
check_class_changed(rq, p, prev_class, oldprio);
out_unlock:
- preempt_disable(); /* avoid rq from going away on us */
+ /* Avoid rq from going away on us: */
+ preempt_disable();
__task_rq_unlock(rq, &rf);
balance_callback(rq);
@@ -3862,7 +3852,7 @@ EXPORT_SYMBOL(set_user_nice);
*/
int can_nice(const struct task_struct *p, const int nice)
{
- /* convert nice value [19,-20] to rlimit style value [1,40] */
+ /* Convert nice value [19,-20] to rlimit style value [1,40]: */
int nice_rlim = nice_to_rlimit(nice);
return (nice_rlim <= task_rlimit(p, RLIMIT_NICE) ||
@@ -3918,7 +3908,7 @@ int task_prio(const struct task_struct *p)
}
/**
- * idle_cpu - is a given cpu idle currently?
+ * idle_cpu - is a given CPU idle currently?
* @cpu: the processor in question.
*
* Return: 1 if the CPU is currently idle. 0 otherwise.
@@ -3942,10 +3932,10 @@ int idle_cpu(int cpu)
}
/**
- * idle_task - return the idle task for a given cpu.
+ * idle_task - return the idle task for a given CPU.
* @cpu: the processor in question.
*
- * Return: The idle task for the cpu @cpu.
+ * Return: The idle task for the CPU @cpu.
*/
struct task_struct *idle_task(int cpu)
{
@@ -4111,7 +4101,7 @@ __checkparam_dl(const struct sched_attr *attr)
}
/*
- * check the target process has a UID that matches the current process's
+ * Check the target process has a UID that matches the current process's:
*/
static bool check_same_owner(struct task_struct *p)
{
@@ -4126,8 +4116,7 @@ static bool check_same_owner(struct task_struct *p)
return match;
}
-static bool dl_param_changed(struct task_struct *p,
- const struct sched_attr *attr)
+static bool dl_param_changed(struct task_struct *p, const struct sched_attr *attr)
{
struct sched_dl_entity *dl_se = &p->dl;
@@ -4154,10 +4143,10 @@ static int __sched_setscheduler(struct task_struct *p,
int queue_flags = DEQUEUE_SAVE | DEQUEUE_MOVE;
struct rq *rq;
- /* may grab non-irq protected spin_locks */
+ /* May grab non-irq protected spin_locks: */
BUG_ON(in_interrupt());
recheck:
- /* double check policy once rq lock held */
+ /* Double check policy once rq lock held: */
if (policy < 0) {
reset_on_fork = p->sched_reset_on_fork;
policy = oldpolicy = p->policy;
@@ -4197,11 +4186,11 @@ static int __sched_setscheduler(struct task_struct *p,
unsigned long rlim_rtprio =
task_rlimit(p, RLIMIT_RTPRIO);
- /* can't set/change the rt policy */
+ /* Can't set/change the rt policy: */
if (policy != p->policy && !rlim_rtprio)
return -EPERM;
- /* can't increase priority */
+ /* Can't increase priority: */
if (attr->sched_priority > p->rt_priority &&
attr->sched_priority > rlim_rtprio)
return -EPERM;
@@ -4225,11 +4214,11 @@ static int __sched_setscheduler(struct task_struct *p,
return -EPERM;
}
- /* can't change other user's priorities */
+ /* Can't change other user's priorities: */
if (!check_same_owner(p))
return -EPERM;
- /* Normal users shall not reset the sched_reset_on_fork flag */
+ /* Normal users shall not reset the sched_reset_on_fork flag: */
if (p->sched_reset_on_fork && !reset_on_fork)
return -EPERM;
}
@@ -4241,7 +4230,7 @@ static int __sched_setscheduler(struct task_struct *p,
}
/*
- * make sure no PI-waiters arrive (or leave) while we are
+ * Make sure no PI-waiters arrive (or leave) while we are
* changing the priority of the task:
*
* To be able to change p->policy safely, the appropriate
@@ -4251,7 +4240,7 @@ static int __sched_setscheduler(struct task_struct *p,
update_rq_clock(rq);
/*
- * Changing the policy of the stop threads its a very bad idea
+ * Changing the policy of the stop threads its a very bad idea:
*/
if (p == rq->stop) {
task_rq_unlock(rq, p, &rf);
@@ -4307,7 +4296,7 @@ static int __sched_setscheduler(struct task_struct *p,
#endif
}
- /* recheck policy now with rq lock held */
+ /* Re-check policy now with rq lock held: */
if (unlikely(oldpolicy != -1 && oldpolicy != p->policy)) {
policy = oldpolicy = -1;
task_rq_unlock(rq, p, &rf);
@@ -4364,15 +4353,15 @@ static int __sched_setscheduler(struct task_struct *p,
set_curr_task(rq, p);
check_class_changed(rq, p, prev_class, oldprio);
- preempt_disable(); /* avoid rq from going away on us */
+
+ /* Avoid rq from going away on us: */
+ preempt_disable();
task_rq_unlock(rq, p, &rf);
if (pi)
rt_mutex_adjust_pi(p);
- /*
- * Run balance callbacks after we've adjusted the PI chain.
- */
+ /* Run balance callbacks after we've adjusted the PI chain: */
balance_callback(rq);
preempt_enable();
@@ -4465,8 +4454,7 @@ do_sched_setscheduler(pid_t pid, int policy, struct sched_param __user *param)
/*
* Mimics kernel/events/core.c perf_copy_attr().
*/
-static int sched_copy_attr(struct sched_attr __user *uattr,
- struct sched_attr *attr)
+static int sched_copy_attr(struct sched_attr __user *uattr, struct sched_attr *attr)
{
u32 size;
int ret;
@@ -4474,19 +4462,19 @@ static int sched_copy_attr(struct sched_attr __user *uattr,
if (!access_ok(VERIFY_WRITE, uattr, SCHED_ATTR_SIZE_VER0))
return -EFAULT;
- /*
- * zero the full structure, so that a short copy will be nice.
- */
+ /* Zero the full structure, so that a short copy will be nice: */
memset(attr, 0, sizeof(*attr));
ret = get_user(size, &uattr->size);
if (ret)
return ret;
- if (size > PAGE_SIZE) /* silly large */
+ /* Bail out on silly large: */
+ if (size > PAGE_SIZE)
goto err_size;
- if (!size) /* abi compat */
+ /* ABI compatibility quirk: */
+ if (!size)
size = SCHED_ATTR_SIZE_VER0;
if (size < SCHED_ATTR_SIZE_VER0)
@@ -4521,7 +4509,7 @@ static int sched_copy_attr(struct sched_attr __user *uattr,
return -EFAULT;
/*
- * XXX: do we want to be lenient like existing syscalls; or do we want
+ * XXX: Do we want to be lenient like existing syscalls; or do we want
* to be strict and return an error on out-of-bounds values?
*/
attr->sched_nice = clamp(attr->sched_nice, MIN_NICE, MAX_NICE);
@@ -4541,10 +4529,8 @@ static int sched_copy_attr(struct sched_attr __user *uattr,
*
* Return: 0 on success. An error code otherwise.
*/
-SYSCALL_DEFINE3(sched_setscheduler, pid_t, pid, int, policy,
- struct sched_param __user *, param)
+SYSCALL_DEFINE3(sched_setscheduler, pid_t, pid, int, policy, struct sched_param __user *, param)
{
- /* negative values for policy are not valid */
if (policy < 0)
return -EINVAL;
@@ -4854,10 +4840,10 @@ static int get_user_cpu_mask(unsigned long __user *user_mask_ptr, unsigned len,
}
/**
- * sys_sched_setaffinity - set the cpu affinity of a process
+ * sys_sched_setaffinity - set the CPU affinity of a process
* @pid: pid of the process
* @len: length in bytes of the bitmask pointed to by user_mask_ptr
- * @user_mask_ptr: user-space pointer to the new cpu mask
+ * @user_mask_ptr: user-space pointer to the new CPU mask
*
* Return: 0 on success. An error code otherwise.
*/
@@ -4905,10 +4891,10 @@ long sched_getaffinity(pid_t pid, struct cpumask *mask)
}
/**
- * sys_sched_getaffinity - get the cpu affinity of a process
+ * sys_sched_getaffinity - get the CPU affinity of a process
* @pid: pid of the process
* @len: length in bytes of the bitmask pointed to by user_mask_ptr
- * @user_mask_ptr: user-space pointer to hold the current cpu mask
+ * @user_mask_ptr: user-space pointer to hold the current CPU mask
*
* Return: size of CPU mask copied to user_mask_ptr on success. An
* error code otherwise.
@@ -5036,7 +5022,7 @@ EXPORT_SYMBOL(__cond_resched_softirq);
* Typical broken usage is:
*
* while (!event)
- * yield();
+ * yield();
*
* where one assumes that yield() will let 'the other' process run that will
* make event true. If the current task is a SCHED_FIFO task that will never
@@ -5351,7 +5337,7 @@ void init_idle_bootup_task(struct task_struct *idle)
/**
* init_idle - set up an idle thread for a given CPU
* @idle: task in question
- * @cpu: cpu the idle task belongs to
+ * @cpu: CPU the idle task belongs to
*
* NOTE: this function does not set the idle thread's NEED_RESCHED
* flag, to make booting more robust.
@@ -5382,7 +5368,7 @@ void init_idle(struct task_struct *idle, int cpu)
#endif
/*
* We're having a chicken and egg problem, even though we are
- * holding rq->lock, the cpu isn't yet set to this cpu so the
+ * holding rq->lock, the CPU isn't yet set to this CPU so the
* lockdep check in task_group() will fail.
*
* Similar case to sched_fork(). / Alternatively we could
@@ -5447,7 +5433,7 @@ int task_can_attach(struct task_struct *p,
/*
* Kthreads which disallow setaffinity shouldn't be moved
- * to a new cpuset; we don't want to change their cpu
+ * to a new cpuset; we don't want to change their CPU
* affinity and isolating such threads by their set of
* allowed nodes is unnecessary. Thus, cpusets are not
* applicable for such threads. This prevents checking for
@@ -5548,7 +5534,7 @@ void sched_setnuma(struct task_struct *p, int nid)
#ifdef CONFIG_HOTPLUG_CPU
/*
- * Ensures that the idle task is using init_mm right before its cpu goes
+ * Ensure that the idle task is using init_mm right before its CPU goes
* offline.
*/
void idle_task_exit(void)
@@ -5632,13 +5618,13 @@ static void migrate_tasks(struct rq *dead_rq)
for (;;) {
/*
* There's this thread running, bail when that's the only
- * remaining thread.
+ * remaining thread:
*/
if (rq->nr_running == 1)
break;
/*
- * pick_next_task assumes pinned rq->lock.
+ * pick_next_task() assumes pinned rq->lock:
*/
rq_pin_lock(rq, &rf);
next = pick_next_task(rq, &fake_task, &rf);
@@ -5730,7 +5716,8 @@ static void set_cpu_rq_start_time(unsigned int cpu)
rq->age_stamp = sched_clock_cpu(cpu);
}
-static cpumask_var_t sched_domains_tmpmask; /* sched_domains_mutex */
+/* Protected by sched_domains_mutex: */
+static cpumask_var_t sched_domains_tmpmask;
#ifdef CONFIG_SCHED_DEBUG
@@ -5997,7 +5984,7 @@ static int init_rootdomain(struct root_domain *rd)
}
/*
- * By default the system creates a single root-domain with all cpus as
+ * By default the system creates a single root-domain with all CPUs as
* members (mimicking the global state we have today).
*/
struct root_domain def_root_domain;
@@ -6083,9 +6070,9 @@ static void destroy_sched_domains(struct sched_domain *sd)
* SD_SHARE_PKG_RESOURCE set (Last Level Cache Domain) for this
* allows us to avoid some pointer chasing select_idle_sibling().
*
- * Also keep a unique ID per domain (we use the first cpu number in
+ * Also keep a unique ID per domain (we use the first CPU number in
* the cpumask of the domain), this allows us to quickly tell if
- * two cpus are in the same cache domain, see cpus_share_cache().
+ * two CPUs are in the same cache domain, see cpus_share_cache().
*/
DEFINE_PER_CPU(struct sched_domain *, sd_llc);
DEFINE_PER_CPU(int, sd_llc_size);
@@ -6170,7 +6157,7 @@ cpu_attach_domain(struct sched_domain *sd, struct root_domain *rd, int cpu)
update_top_cache_domain(cpu);
}
-/* Setup the mask of cpus configured for isolated domains */
+/* Setup the mask of CPUs configured for isolated domains */
static int __init isolated_cpu_setup(char *str)
{
int ret;
@@ -6207,8 +6194,7 @@ enum s_alloc {
*
* In that case build_sched_domains() will have terminated the iteration early
* and our sibling sd spans will be empty. Domains should always include the
- * cpu they're built on, so check that.
- *
+ * CPU they're built on, so check that.
*/
static void build_group_mask(struct sched_domain *sd, struct sched_group *sg)
{
@@ -6227,7 +6213,7 @@ static void build_group_mask(struct sched_domain *sd, struct sched_group *sg)
}
/*
- * Return the canonical balance cpu for this group, this is the first cpu
+ * Return the canonical balance CPU for this group, this is the first CPU
* of this group that's also in the iteration mask.
*/
int group_balance_cpu(struct sched_group *sg)
@@ -6287,7 +6273,7 @@ build_overlap_sched_groups(struct sched_domain *sd, int cpu)
/*
* Make sure the first group of this domain contains the
- * canonical balance cpu. Otherwise the sched_domain iteration
+ * canonical balance CPU. Otherwise the sched_domain iteration
* breaks. See update_sg_lb_stats().
*/
if ((!groups && cpumask_test_cpu(cpu, sg_span)) ||
@@ -6322,7 +6308,9 @@ static int get_group(int cpu, struct sd_data *sdd, struct sched_group **sg)
if (sg) {
*sg = *per_cpu_ptr(sdd->sg, cpu);
(*sg)->sgc = *per_cpu_ptr(sdd->sgc, cpu);
- atomic_set(&(*sg)->sgc->ref, 1); /* for claim_allocations */
+
+ /* For claim_allocations: */
+ atomic_set(&(*sg)->sgc->ref, 1);
}
return cpu;
@@ -6456,10 +6444,10 @@ static void set_domain_attribute(struct sched_domain *sd,
} else
request = attr->relax_domain_level;
if (request < sd->level) {
- /* turn off idle balance on this domain */
+ /* Turn off idle balance on this domain: */
sd->flags &= ~(SD_BALANCE_WAKE|SD_BALANCE_NEWIDLE);
} else {
- /* turn on idle balance on this domain */
+ /* Turn on idle balance on this domain: */
sd->flags |= (SD_BALANCE_WAKE|SD_BALANCE_NEWIDLE);
}
}
@@ -6473,18 +6461,21 @@ static void __free_domain_allocs(struct s_data *d, enum s_alloc what,
switch (what) {
case sa_rootdomain:
if (!atomic_read(&d->rd->refcount))
- free_rootdomain(&d->rd->rcu); /* fall through */
+ free_rootdomain(&d->rd->rcu);
+ /* Fall through */
case sa_sd:
- free_percpu(d->sd); /* fall through */
+ free_percpu(d->sd);
+ /* Fall through */
case sa_sd_storage:
- __sdt_free(cpu_map); /* fall through */
+ __sdt_free(cpu_map);
+ /* Fall through */
case sa_none:
break;
}
}
-static enum s_alloc __visit_domain_allocation_hell(struct s_data *d,
- const struct cpumask *cpu_map)
+static enum s_alloc
+__visit_domain_allocation_hell(struct s_data *d, const struct cpumask *cpu_map)
{
memset(d, 0, sizeof(*d));
@@ -6883,7 +6874,7 @@ static void sched_init_numa(void)
/*
* Now for each level, construct a mask per node which contains all
- * cpus of nodes that are that many hops away from us.
+ * CPUs of nodes that are that many hops away from us.
*/
for (i = 0; i < level; i++) {
sched_domains_numa_masks[i] =
@@ -7103,11 +7094,11 @@ struct sched_domain *build_sched_domain(struct sched_domain_topology_level *tl,
}
/*
- * Build sched domains for a given set of cpus and attach the sched domains
- * to the individual cpus
+ * Build sched domains for a given set of CPUs and attach the sched domains
+ * to the individual CPUs
*/
-static int build_sched_domains(const struct cpumask *cpu_map,
- struct sched_domain_attr *attr)
+static int
+build_sched_domains(const struct cpumask *cpu_map, struct sched_domain_attr *attr)
{
enum s_alloc alloc_state;
struct sched_domain *sd;
@@ -7119,7 +7110,7 @@ static int build_sched_domains(const struct cpumask *cpu_map,
if (alloc_state != sa_rootdomain)
goto error;
- /* Set up domains for cpus specified by the cpu_map. */
+ /* Set up domains for CPUs specified by the cpu_map: */
for_each_cpu(i, cpu_map) {
struct sched_domain_topology_level *tl;
@@ -7185,21 +7176,25 @@ static int build_sched_domains(const struct cpumask *cpu_map,
return ret;
}
-static cpumask_var_t *doms_cur; /* current sched domains */
-static int ndoms_cur; /* number of sched domains in 'doms_cur' */
-static struct sched_domain_attr *dattr_cur;
- /* attribues of custom domains in 'doms_cur' */
+/* Current sched domains: */
+static cpumask_var_t *doms_cur;
+
+/* Number of sched domains in 'doms_cur': */
+static int ndoms_cur;
+
+/* Attribues of custom domains in 'doms_cur' */
+static struct sched_domain_attr *dattr_cur;
/*
- * Special case: If a kmalloc of a doms_cur partition (array of
+ * Special case: If a kmalloc() of a doms_cur partition (array of
* cpumask) fails, then fallback to a single sched domain,
* as determined by the single cpumask fallback_doms.
*/
-static cpumask_var_t fallback_doms;
+static cpumask_var_t fallback_doms;
/*
* arch_update_cpu_topology lets virtualized architectures update the
- * cpu core maps. It is supposed to return 1 if the topology changed
+ * CPU core maps. It is supposed to return 1 if the topology changed
* or 0 if it stayed the same.
*/
int __weak arch_update_cpu_topology(void)
@@ -7234,7 +7229,7 @@ void free_sched_domains(cpumask_var_t doms[], unsigned int ndoms)
/*
* Set up scheduler domains and groups. Callers must hold the hotplug lock.
- * For now this just excludes isolated cpus, but could be used to
+ * For now this just excludes isolated CPUs, but could be used to
* exclude other special cases in the future.
*/
static int init_sched_domains(const struct cpumask *cpu_map)
@@ -7254,8 +7249,8 @@ static int init_sched_domains(const struct cpumask *cpu_map)
}
/*
- * Detach sched domains from a group of cpus specified in cpu_map
- * These cpus will now be attached to the NULL domain
+ * Detach sched domains from a group of CPUs specified in cpu_map
+ * These CPUs will now be attached to the NULL domain
*/
static void detach_destroy_domains(const struct cpumask *cpu_map)
{
@@ -7273,7 +7268,7 @@ static int dattrs_equal(struct sched_domain_attr *cur, int idx_cur,
{
struct sched_domain_attr tmp;
- /* fast path */
+ /* Fast path: */
if (!new && !cur)
return 1;
@@ -7317,22 +7312,22 @@ void partition_sched_domains(int ndoms_new, cpumask_var_t doms_new[],
mutex_lock(&sched_domains_mutex);
- /* always unregister in case we don't destroy any domains */
+ /* Always unregister in case we don't destroy any domains: */
unregister_sched_domain_sysctl();
- /* Let architecture update cpu core mappings. */
+ /* Let the architecture update CPU core mappings: */
new_topology = arch_update_cpu_topology();
n = doms_new ? ndoms_new : 0;
- /* Destroy deleted domains */
+ /* Destroy deleted domains: */
for (i = 0; i < ndoms_cur; i++) {
for (j = 0; j < n && !new_topology; j++) {
if (cpumask_equal(doms_cur[i], doms_new[j])
&& dattrs_equal(dattr_cur, i, dattr_new, j))
goto match1;
}
- /* no match - a current sched domain not in new doms_new[] */
+ /* No match - a current sched domain not in new doms_new[] */
detach_destroy_domains(doms_cur[i]);
match1:
;
@@ -7346,23 +7341,24 @@ void partition_sched_domains(int ndoms_new, cpumask_var_t doms_new[],
WARN_ON_ONCE(dattr_new);
}
- /* Build new domains */
+ /* Build new domains: */
for (i = 0; i < ndoms_new; i++) {
for (j = 0; j < n && !new_topology; j++) {
if (cpumask_equal(doms_new[i], doms_cur[j])
&& dattrs_equal(dattr_new, i, dattr_cur, j))
goto match2;
}
- /* no match - add a new doms_new */
+ /* No match - add a new doms_new */
build_sched_domains(doms_new[i], dattr_new ? dattr_new + i : NULL);
match2:
;
}
- /* Remember the new sched domains */
+ /* Remember the new sched domains: */
if (doms_cur != &fallback_doms)
free_sched_domains(doms_cur, ndoms_cur);
- kfree(dattr_cur); /* kfree(NULL) is safe */
+
+ kfree(dattr_cur);
doms_cur = doms_new;
dattr_cur = dattr_new;
ndoms_cur = ndoms_new;
@@ -7372,7 +7368,10 @@ void partition_sched_domains(int ndoms_new, cpumask_var_t doms_new[],
mutex_unlock(&sched_domains_mutex);
}
-static int num_cpus_frozen; /* used to mark begin/end of suspend/resume */
+/*
+ * used to mark begin/end of suspend/resume:
+ */
+static int num_cpus_frozen;
/*
* Update cpusets according to cpu_active mask. If cpusets are
@@ -7449,7 +7448,7 @@ int sched_cpu_activate(unsigned int cpu)
* Put the rq online, if not already. This happens:
*
* 1) In the early boot process, because we build the real domains
- * after all cpus have been brought up.
+ * after all CPUs have been brought up.
*
* 2) At runtime, if cpuset_cpu_active() fails to rebuild the
* domains.
@@ -7564,7 +7563,7 @@ void __init sched_init_smp(void)
/*
* There's no userspace yet to cause hotplug operations; hence all the
- * cpu masks are stable and all blatant races in the below code cannot
+ * CPU masks are stable and all blatant races in the below code cannot
* happen.
*/
mutex_lock(&sched_domains_mutex);
@@ -7684,10 +7683,8 @@ void __init sched_init(void)
}
#endif /* CONFIG_CPUMASK_OFFSTACK */
- init_rt_bandwidth(&def_rt_bandwidth,
- global_rt_period(), global_rt_runtime());
- init_dl_bandwidth(&def_dl_bandwidth,
- global_rt_period(), global_rt_runtime());
+ init_rt_bandwidth(&def_rt_bandwidth, global_rt_period(), global_rt_runtime());
+ init_dl_bandwidth(&def_dl_bandwidth, global_rt_period(), global_rt_runtime());
#ifdef CONFIG_SMP
init_defrootdomain();
@@ -7723,18 +7720,18 @@ void __init sched_init(void)
INIT_LIST_HEAD(&rq->leaf_cfs_rq_list);
rq->tmp_alone_branch = &rq->leaf_cfs_rq_list;
/*
- * How much cpu bandwidth does root_task_group get?
+ * How much CPU bandwidth does root_task_group get?
*
* In case of task-groups formed thr' the cgroup filesystem, it
- * gets 100% of the cpu resources in the system. This overall
- * system cpu resource is divided among the tasks of
+ * gets 100% of the CPU resources in the system. This overall
+ * system CPU resource is divided among the tasks of
* root_task_group and its child task-groups in a fair manner,
* based on each entity's (task or task-group's) weight
* (se->load.weight).
*
* In other words, if root_task_group has 10 tasks of weight
* 1024) and two child groups A0 and A1 (of weight 1024 each),
- * then A0's share of the cpu resource is:
+ * then A0's share of the CPU resource is:
*
* A0's bandwidth = 1024 / (10*1024 + 1024 + 1024) = 8.33%
*
@@ -7843,10 +7840,14 @@ EXPORT_SYMBOL(__might_sleep);
void ___might_sleep(const char *file, int line, int preempt_offset)
{
- static unsigned long prev_jiffy; /* ratelimiting */
+ /* Ratelimiting timestamp: */
+ static unsigned long prev_jiffy;
+
unsigned long preempt_disable_ip;
- rcu_sleep_check(); /* WARN_ON_ONCE() by default, no rate limit reqd. */
+ /* WARN_ON_ONCE() by default, no rate limit required: */
+ rcu_sleep_check();
+
if ((preempt_count_equals(preempt_offset) && !irqs_disabled() &&
!is_idle_task(current)) ||
system_state != SYSTEM_RUNNING || oops_in_progress)
@@ -7855,7 +7856,7 @@ void ___might_sleep(const char *file, int line, int preempt_offset)
return;
prev_jiffy = jiffies;
- /* Save this before calling printk(), since that will clobber it */
+ /* Save this before calling printk(), since that will clobber it: */
preempt_disable_ip = get_preempt_disable_ip(current);
printk(KERN_ERR
@@ -7934,7 +7935,7 @@ void normalize_rt_tasks(void)
*/
/**
- * curr_task - return the current task for a given cpu.
+ * curr_task - return the current task for a given CPU.
* @cpu: the processor in question.
*
* ONLY VALID WHEN THE WHOLE SYSTEM IS STOPPED!
@@ -7950,13 +7951,13 @@ struct task_struct *curr_task(int cpu)
#ifdef CONFIG_IA64
/**
- * set_curr_task - set the current task for a given cpu.
+ * set_curr_task - set the current task for a given CPU.
* @cpu: the processor in question.
* @p: the task pointer to set.
*
* Description: This function must only be used when non-maskable interrupts
* are serviced on a separate stack. It allows the architecture to switch the
- * notion of the current task on a cpu in a non-blocking manner. This function
+ * notion of the current task on a CPU in a non-blocking manner. This function
* must be called with all CPU's synchronized, and interrupts disabled, the
* and caller must save the original value of the current task (see
* curr_task() above) and restore that value before reenabling interrupts and
@@ -8012,7 +8013,8 @@ void sched_online_group(struct task_group *tg, struct task_group *parent)
spin_lock_irqsave(&task_group_lock, flags);
list_add_rcu(&tg->list, &task_groups);
- WARN_ON(!parent); /* root should already exist */
+ /* Root should already exist: */
+ WARN_ON(!parent);
tg->parent = parent;
INIT_LIST_HEAD(&tg->children);
@@ -8025,13 +8027,13 @@ void sched_online_group(struct task_group *tg, struct task_group *parent)
/* rcu callback to free various structures associated with a task group */
static void sched_free_group_rcu(struct rcu_head *rhp)
{
- /* now it should be safe to free those cfs_rqs */
+ /* Now it should be safe to free those cfs_rqs: */
sched_free_group(container_of(rhp, struct task_group, rcu));
}
void sched_destroy_group(struct task_group *tg)
{
- /* wait for possible concurrent references to cfs_rqs complete */
+ /* Wait for possible concurrent references to cfs_rqs complete: */
call_rcu(&tg->rcu, sched_free_group_rcu);
}
@@ -8039,7 +8041,7 @@ void sched_offline_group(struct task_group *tg)
{
unsigned long flags;
- /* end participation in shares distribution */
+ /* End participation in shares distribution: */
unregister_fair_sched_group(tg);
spin_lock_irqsave(&task_group_lock, flags);
@@ -8468,8 +8470,10 @@ int sched_rr_handler(struct ctl_table *table, int write,
mutex_lock(&mutex);
ret = proc_dointvec(table, write, buffer, lenp, ppos);
- /* make sure that internally we keep jiffies */
- /* also, writing zero resets timeslice to default */
+ /*
+ * Make sure that internally we keep jiffies.
+ * Also, writing zero resets the timeslice to default:
+ */
if (!ret && write) {
sched_rr_timeslice =
sysctl_sched_rr_timeslice <= 0 ? RR_TIMESLICE :
@@ -8654,9 +8658,11 @@ static int tg_set_cfs_bandwidth(struct task_group *tg, u64 period, u64 quota)
cfs_b->quota = quota;
__refill_cfs_bandwidth_runtime(cfs_b);
- /* restart the period timer (if active) to handle new period expiry */
+
+ /* Restart the period timer (if active) to handle new period expiry: */
if (runtime_enabled)
start_cfs_bandwidth(cfs_b);
+
raw_spin_unlock_irq(&cfs_b->lock);
for_each_online_cpu(i) {
@@ -8794,8 +8800,8 @@ static int tg_cfs_schedulable_down(struct task_group *tg, void *data)
parent_quota = parent_b->hierarchical_quota;
/*
- * ensure max(child_quota) <= parent_quota, inherit when no
- * limit is set
+ * Ensure max(child_quota) <= parent_quota, inherit when no
+ * limit is set:
*/
if (quota == RUNTIME_INF)
quota = parent_quota;
@@ -8904,7 +8910,7 @@ static struct cftype cpu_files[] = {
.write_u64 = cpu_rt_period_write_uint,
},
#endif
- { } /* terminate */
+ { } /* Terminate */
};
struct cgroup_subsys cpu_cgrp_subsys = {
--
2.7.4
^ permalink raw reply related [flat|nested] 119+ messages in thread
* [PATCH 02/89] delayacct: Include <uapi/linux/taskstats.h>
2017-02-06 13:28 [PATCH 00/89] Major reorganization of <linux/sched.h> Ingo Molnar
2017-02-06 13:28 ` [PATCH 01/89] sched/core: Clean up comments Ingo Molnar
@ 2017-02-06 13:28 ` Ingo Molnar
2017-02-06 13:28 ` [PATCH 03/89] sched/rq_clock: Consolidate the ordering of the rq_clock methods Ingo Molnar
` (88 subsequent siblings)
90 siblings, 0 replies; 119+ messages in thread
From: Ingo Molnar @ 2017-02-06 13:28 UTC (permalink / raw)
To: linux-kernel
Cc: Andrew Morton, Linus Torvalds, Mike Galbraith, Oleg Nesterov,
Peter Zijlstra, Thomas Gleixner
include/linux/delayacct.h relies on 'struct taskstats' but does
not include the header that defines it.
This worked so far because files that included <linux/taskstats.h>
also happened to include other headers that included
uapi/linux/taskstats.h.
Fix it.
Cc: Mike Galbraith <efault@gmx.de>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
include/linux/delayacct.h | 1 +
1 file changed, 1 insertion(+)
diff --git a/include/linux/delayacct.h b/include/linux/delayacct.h
index 6cee17c22313..00e60f79a9cc 100644
--- a/include/linux/delayacct.h
+++ b/include/linux/delayacct.h
@@ -17,6 +17,7 @@
#ifndef _LINUX_DELAYACCT_H
#define _LINUX_DELAYACCT_H
+#include <uapi/linux/taskstats.h>
#include <linux/sched.h>
#include <linux/slab.h>
--
2.7.4
^ permalink raw reply related [flat|nested] 119+ messages in thread
* [PATCH 03/89] sched/rq_clock: Consolidate the ordering of the rq_clock methods
2017-02-06 13:28 [PATCH 00/89] Major reorganization of <linux/sched.h> Ingo Molnar
2017-02-06 13:28 ` [PATCH 01/89] sched/core: Clean up comments Ingo Molnar
2017-02-06 13:28 ` [PATCH 02/89] delayacct: Include <uapi/linux/taskstats.h> Ingo Molnar
@ 2017-02-06 13:28 ` Ingo Molnar
2017-02-06 13:28 ` [PATCH 04/89] sched/core: Remove unnecessary #include headers Ingo Molnar
` (87 subsequent siblings)
90 siblings, 0 replies; 119+ messages in thread
From: Ingo Molnar @ 2017-02-06 13:28 UTC (permalink / raw)
To: linux-kernel
Cc: Andrew Morton, Linus Torvalds, Mike Galbraith, Oleg Nesterov,
Peter Zijlstra, Thomas Gleixner
update_rq_clock_task() and update_rq_clock() we unnecessarily
spread across core.c, requiring an extra prototype line.
Move them next to each other and in the proper order.
Cc: Mike Galbraith <efault@gmx.de>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
kernel/sched/core.c | 153 +++++++++++++++++++++++++++++++++++++-----------------------------------
1 file changed, 78 insertions(+), 75 deletions(-)
diff --git a/kernel/sched/core.c b/kernel/sched/core.c
index 87cf7ba82bd5..a400190792b9 100644
--- a/kernel/sched/core.c
+++ b/kernel/sched/core.c
@@ -73,27 +73,6 @@
DEFINE_MUTEX(sched_domains_mutex);
DEFINE_PER_CPU_SHARED_ALIGNED(struct rq, runqueues);
-static void update_rq_clock_task(struct rq *rq, s64 delta);
-
-void update_rq_clock(struct rq *rq)
-{
- s64 delta;
-
- lockdep_assert_held(&rq->lock);
-
- if (rq->clock_update_flags & RQCF_ACT_SKIP)
- return;
-
-#ifdef CONFIG_SCHED_DEBUG
- rq->clock_update_flags |= RQCF_UPDATED;
-#endif
- delta = sched_clock_cpu(cpu_of(rq)) - rq->clock;
- if (delta < 0)
- return;
- rq->clock += delta;
- update_rq_clock_task(rq, delta);
-}
-
/*
* Debugging: various feature bits
*/
@@ -218,6 +197,84 @@ struct rq *task_rq_lock(struct task_struct *p, struct rq_flags *rf)
}
}
+/*
+ * RQ-clock updating methods:
+ */
+
+static void update_rq_clock_task(struct rq *rq, s64 delta)
+{
+/*
+ * In theory, the compile should just see 0 here, and optimize out the call
+ * to sched_rt_avg_update. But I don't trust it...
+ */
+#if defined(CONFIG_IRQ_TIME_ACCOUNTING) || defined(CONFIG_PARAVIRT_TIME_ACCOUNTING)
+ s64 steal = 0, irq_delta = 0;
+#endif
+#ifdef CONFIG_IRQ_TIME_ACCOUNTING
+ irq_delta = irq_time_read(cpu_of(rq)) - rq->prev_irq_time;
+
+ /*
+ * Since irq_time is only updated on {soft,}irq_exit, we might run into
+ * this case when a previous update_rq_clock() happened inside a
+ * {soft,}irq region.
+ *
+ * When this happens, we stop ->clock_task and only update the
+ * prev_irq_time stamp to account for the part that fit, so that a next
+ * update will consume the rest. This ensures ->clock_task is
+ * monotonic.
+ *
+ * It does however cause some slight miss-attribution of {soft,}irq
+ * time, a more accurate solution would be to update the irq_time using
+ * the current rq->clock timestamp, except that would require using
+ * atomic ops.
+ */
+ if (irq_delta > delta)
+ irq_delta = delta;
+
+ rq->prev_irq_time += irq_delta;
+ delta -= irq_delta;
+#endif
+#ifdef CONFIG_PARAVIRT_TIME_ACCOUNTING
+ if (static_key_false((¶virt_steal_rq_enabled))) {
+ steal = paravirt_steal_clock(cpu_of(rq));
+ steal -= rq->prev_steal_time_rq;
+
+ if (unlikely(steal > delta))
+ steal = delta;
+
+ rq->prev_steal_time_rq += steal;
+ delta -= steal;
+ }
+#endif
+
+ rq->clock_task += delta;
+
+#if defined(CONFIG_IRQ_TIME_ACCOUNTING) || defined(CONFIG_PARAVIRT_TIME_ACCOUNTING)
+ if ((irq_delta + steal) && sched_feat(NONTASK_CAPACITY))
+ sched_rt_avg_update(rq, irq_delta + steal);
+#endif
+}
+
+void update_rq_clock(struct rq *rq)
+{
+ s64 delta;
+
+ lockdep_assert_held(&rq->lock);
+
+ if (rq->clock_update_flags & RQCF_ACT_SKIP)
+ return;
+
+#ifdef CONFIG_SCHED_DEBUG
+ rq->clock_update_flags |= RQCF_UPDATED;
+#endif
+ delta = sched_clock_cpu(cpu_of(rq)) - rq->clock;
+ if (delta < 0)
+ return;
+ rq->clock += delta;
+ update_rq_clock_task(rq, delta);
+}
+
+
#ifdef CONFIG_SCHED_HRTICK
/*
* Use HR-timers to deliver accurate preemption points.
@@ -767,60 +824,6 @@ void deactivate_task(struct rq *rq, struct task_struct *p, int flags)
dequeue_task(rq, p, flags);
}
-static void update_rq_clock_task(struct rq *rq, s64 delta)
-{
-/*
- * In theory, the compile should just see 0 here, and optimize out the call
- * to sched_rt_avg_update. But I don't trust it...
- */
-#if defined(CONFIG_IRQ_TIME_ACCOUNTING) || defined(CONFIG_PARAVIRT_TIME_ACCOUNTING)
- s64 steal = 0, irq_delta = 0;
-#endif
-#ifdef CONFIG_IRQ_TIME_ACCOUNTING
- irq_delta = irq_time_read(cpu_of(rq)) - rq->prev_irq_time;
-
- /*
- * Since irq_time is only updated on {soft,}irq_exit, we might run into
- * this case when a previous update_rq_clock() happened inside a
- * {soft,}irq region.
- *
- * When this happens, we stop ->clock_task and only update the
- * prev_irq_time stamp to account for the part that fit, so that a next
- * update will consume the rest. This ensures ->clock_task is
- * monotonic.
- *
- * It does however cause some slight miss-attribution of {soft,}irq
- * time, a more accurate solution would be to update the irq_time using
- * the current rq->clock timestamp, except that would require using
- * atomic ops.
- */
- if (irq_delta > delta)
- irq_delta = delta;
-
- rq->prev_irq_time += irq_delta;
- delta -= irq_delta;
-#endif
-#ifdef CONFIG_PARAVIRT_TIME_ACCOUNTING
- if (static_key_false((¶virt_steal_rq_enabled))) {
- steal = paravirt_steal_clock(cpu_of(rq));
- steal -= rq->prev_steal_time_rq;
-
- if (unlikely(steal > delta))
- steal = delta;
-
- rq->prev_steal_time_rq += steal;
- delta -= steal;
- }
-#endif
-
- rq->clock_task += delta;
-
-#if defined(CONFIG_IRQ_TIME_ACCOUNTING) || defined(CONFIG_PARAVIRT_TIME_ACCOUNTING)
- if ((irq_delta + steal) && sched_feat(NONTASK_CAPACITY))
- sched_rt_avg_update(rq, irq_delta + steal);
-#endif
-}
-
void sched_set_stop_task(int cpu, struct task_struct *stop)
{
struct sched_param param = { .sched_priority = MAX_RT_PRIO - 1 };
--
2.7.4
^ permalink raw reply related [flat|nested] 119+ messages in thread
* [PATCH 04/89] sched/core: Remove unnecessary #include headers
2017-02-06 13:28 [PATCH 00/89] Major reorganization of <linux/sched.h> Ingo Molnar
` (2 preceding siblings ...)
2017-02-06 13:28 ` [PATCH 03/89] sched/rq_clock: Consolidate the ordering of the rq_clock methods Ingo Molnar
@ 2017-02-06 13:28 ` Ingo Molnar
2017-02-06 13:28 ` [PATCH 05/89] sched/topology: Split out scheduler topology code from core.c into topology.c Ingo Molnar
` (86 subsequent siblings)
90 siblings, 0 replies; 119+ messages in thread
From: Ingo Molnar @ 2017-02-06 13:28 UTC (permalink / raw)
To: linux-kernel
Cc: Andrew Morton, Linus Torvalds, Mike Galbraith, Oleg Nesterov,
Peter Zijlstra, Thomas Gleixner
Over the years sched/core.c accumulated over 50 #include lines,
40 of which are superfluous. (!)
Removing them decreases the preprocessed .c file (.i) size noticeably:
triton:~/tip> wc -l kernel/sched/core.i
Before: 76387 kernel/sched/core.i
After: 75896 kernel/sched/core.i
Cc: Mike Galbraith <efault@gmx.de>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
kernel/sched/core.c | 59 ++++++++++-------------------------------------------------
1 file changed, 10 insertions(+), 49 deletions(-)
diff --git a/kernel/sched/core.c b/kernel/sched/core.c
index a400190792b9..1cea6c61fb01 100644
--- a/kernel/sched/core.c
+++ b/kernel/sched/core.c
@@ -5,63 +5,24 @@
*
* Copyright (C) 1991-2002 Linus Torvalds
*/
-#include <linux/kasan.h>
-#include <linux/mm.h>
-#include <linux/module.h>
-#include <linux/nmi.h>
-#include <linux/init.h>
-#include <linux/uaccess.h>
-#include <linux/highmem.h>
-#include <linux/mmu_context.h>
-#include <linux/interrupt.h>
-#include <linux/capability.h>
-#include <linux/completion.h>
-#include <linux/kernel_stat.h>
-#include <linux/debug_locks.h>
-#include <linux/perf_event.h>
-#include <linux/security.h>
-#include <linux/notifier.h>
-#include <linux/profile.h>
-#include <linux/freezer.h>
-#include <linux/vmalloc.h>
-#include <linux/blkdev.h>
-#include <linux/delay.h>
-#include <linux/pid_namespace.h>
-#include <linux/smp.h>
-#include <linux/threads.h>
-#include <linux/timer.h>
-#include <linux/rcupdate.h>
-#include <linux/cpu.h>
+#include <linux/sched.h>
#include <linux/cpuset.h>
-#include <linux/percpu.h>
-#include <linux/proc_fs.h>
-#include <linux/seq_file.h>
-#include <linux/sysctl.h>
-#include <linux/syscalls.h>
-#include <linux/times.h>
-#include <linux/tsacct_kern.h>
-#include <linux/kprobes.h>
#include <linux/delayacct.h>
-#include <linux/unistd.h>
-#include <linux/pagemap.h>
-#include <linux/hrtimer.h>
-#include <linux/tick.h>
-#include <linux/ctype.h>
-#include <linux/ftrace.h>
-#include <linux/slab.h>
#include <linux/init_task.h>
#include <linux/context_tracking.h>
-#include <linux/compiler.h>
-#include <linux/frame.h>
+
+#include <linux/blkdev.h>
+#include <linux/kprobes.h>
+#include <linux/mmu_context.h>
+#include <linux/module.h>
+#include <linux/nmi.h>
#include <linux/prefetch.h>
-#include <linux/mutex.h>
+#include <linux/profile.h>
+#include <linux/security.h>
+#include <linux/syscalls.h>
#include <asm/switch_to.h>
#include <asm/tlb.h>
-#include <asm/irq_regs.h>
-#ifdef CONFIG_PARAVIRT
-#include <asm/paravirt.h>
-#endif
#include "sched.h"
#include "../workqueue_internal.h"
--
2.7.4
^ permalink raw reply related [flat|nested] 119+ messages in thread
* [PATCH 05/89] sched/topology: Split out scheduler topology code from core.c into topology.c
2017-02-06 13:28 [PATCH 00/89] Major reorganization of <linux/sched.h> Ingo Molnar
` (3 preceding siblings ...)
2017-02-06 13:28 ` [PATCH 04/89] sched/core: Remove unnecessary #include headers Ingo Molnar
@ 2017-02-06 13:28 ` Ingo Molnar
2017-02-06 13:28 ` [PATCH 06/89] sched/topology: Split out scheduler topology interfaces from <linux/sched.h> into <linux/sched/topology.h> Ingo Molnar
` (85 subsequent siblings)
90 siblings, 0 replies; 119+ messages in thread
From: Ingo Molnar @ 2017-02-06 13:28 UTC (permalink / raw)
To: linux-kernel
Cc: Andrew Morton, Linus Torvalds, Mike Galbraith, Oleg Nesterov,
Peter Zijlstra, Thomas Gleixner
Cc: Mike Galbraith <efault@gmx.de>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
kernel/sched/Makefile | 2 +-
kernel/sched/core.c | 1659 +------------------------------------------------------------------
kernel/sched/sched.h | 23 +-
kernel/sched/topology.c | 1658 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
4 files changed, 1684 insertions(+), 1658 deletions(-)
diff --git a/kernel/sched/Makefile b/kernel/sched/Makefile
index 5e59b832ae2b..130ce8ac725b 100644
--- a/kernel/sched/Makefile
+++ b/kernel/sched/Makefile
@@ -18,7 +18,7 @@ endif
obj-y += core.o loadavg.o clock.o cputime.o
obj-y += idle_task.o fair.o rt.o deadline.o stop_task.o
obj-y += wait.o swait.o completion.o idle.o
-obj-$(CONFIG_SMP) += cpupri.o cpudeadline.o
+obj-$(CONFIG_SMP) += cpupri.o cpudeadline.o topology.o
obj-$(CONFIG_SCHED_AUTOGROUP) += auto_group.o
obj-$(CONFIG_SCHEDSTATS) += stats.o
obj-$(CONFIG_SCHED_DEBUG) += debug.o
diff --git a/kernel/sched/core.c b/kernel/sched/core.c
index 1cea6c61fb01..e4aa470ed454 100644
--- a/kernel/sched/core.c
+++ b/kernel/sched/core.c
@@ -31,7 +31,6 @@
#define CREATE_TRACE_POINTS
#include <trace/events/sched.h>
-DEFINE_MUTEX(sched_domains_mutex);
DEFINE_PER_CPU_SHARED_ALIGNED(struct rq, runqueues);
/*
@@ -5446,7 +5445,7 @@ int task_can_attach(struct task_struct *p,
#ifdef CONFIG_SMP
-static bool sched_smp_initialized __read_mostly;
+bool sched_smp_initialized __read_mostly;
#ifdef CONFIG_NUMA_BALANCING
/* Migrate current task p to target_cpu */
@@ -5643,7 +5642,7 @@ static void migrate_tasks(struct rq *dead_rq)
}
#endif /* CONFIG_HOTPLUG_CPU */
-static void set_rq_online(struct rq *rq)
+void set_rq_online(struct rq *rq)
{
if (!rq->online) {
const struct sched_class *class;
@@ -5658,7 +5657,7 @@ static void set_rq_online(struct rq *rq)
}
}
-static void set_rq_offline(struct rq *rq)
+void set_rq_offline(struct rq *rq)
{
if (rq->online) {
const struct sched_class *class;
@@ -5680,1658 +5679,6 @@ static void set_cpu_rq_start_time(unsigned int cpu)
rq->age_stamp = sched_clock_cpu(cpu);
}
-/* Protected by sched_domains_mutex: */
-static cpumask_var_t sched_domains_tmpmask;
-
-#ifdef CONFIG_SCHED_DEBUG
-
-static __read_mostly int sched_debug_enabled;
-
-static int __init sched_debug_setup(char *str)
-{
- sched_debug_enabled = 1;
-
- return 0;
-}
-early_param("sched_debug", sched_debug_setup);
-
-static inline bool sched_debug(void)
-{
- return sched_debug_enabled;
-}
-
-static int sched_domain_debug_one(struct sched_domain *sd, int cpu, int level,
- struct cpumask *groupmask)
-{
- struct sched_group *group = sd->groups;
-
- cpumask_clear(groupmask);
-
- printk(KERN_DEBUG "%*s domain %d: ", level, "", level);
-
- if (!(sd->flags & SD_LOAD_BALANCE)) {
- printk("does not load-balance\n");
- if (sd->parent)
- printk(KERN_ERR "ERROR: !SD_LOAD_BALANCE domain"
- " has parent");
- return -1;
- }
-
- printk(KERN_CONT "span %*pbl level %s\n",
- cpumask_pr_args(sched_domain_span(sd)), sd->name);
-
- if (!cpumask_test_cpu(cpu, sched_domain_span(sd))) {
- printk(KERN_ERR "ERROR: domain->span does not contain "
- "CPU%d\n", cpu);
- }
- if (!cpumask_test_cpu(cpu, sched_group_cpus(group))) {
- printk(KERN_ERR "ERROR: domain->groups does not contain"
- " CPU%d\n", cpu);
- }
-
- printk(KERN_DEBUG "%*s groups:", level + 1, "");
- do {
- if (!group) {
- printk("\n");
- printk(KERN_ERR "ERROR: group is NULL\n");
- break;
- }
-
- if (!cpumask_weight(sched_group_cpus(group))) {
- printk(KERN_CONT "\n");
- printk(KERN_ERR "ERROR: empty group\n");
- break;
- }
-
- if (!(sd->flags & SD_OVERLAP) &&
- cpumask_intersects(groupmask, sched_group_cpus(group))) {
- printk(KERN_CONT "\n");
- printk(KERN_ERR "ERROR: repeated CPUs\n");
- break;
- }
-
- cpumask_or(groupmask, groupmask, sched_group_cpus(group));
-
- printk(KERN_CONT " %*pbl",
- cpumask_pr_args(sched_group_cpus(group)));
- if (group->sgc->capacity != SCHED_CAPACITY_SCALE) {
- printk(KERN_CONT " (cpu_capacity = %lu)",
- group->sgc->capacity);
- }
-
- group = group->next;
- } while (group != sd->groups);
- printk(KERN_CONT "\n");
-
- if (!cpumask_equal(sched_domain_span(sd), groupmask))
- printk(KERN_ERR "ERROR: groups don't span domain->span\n");
-
- if (sd->parent &&
- !cpumask_subset(groupmask, sched_domain_span(sd->parent)))
- printk(KERN_ERR "ERROR: parent span is not a superset "
- "of domain->span\n");
- return 0;
-}
-
-static void sched_domain_debug(struct sched_domain *sd, int cpu)
-{
- int level = 0;
-
- if (!sched_debug_enabled)
- return;
-
- if (!sd) {
- printk(KERN_DEBUG "CPU%d attaching NULL sched-domain.\n", cpu);
- return;
- }
-
- printk(KERN_DEBUG "CPU%d attaching sched-domain:\n", cpu);
-
- for (;;) {
- if (sched_domain_debug_one(sd, cpu, level, sched_domains_tmpmask))
- break;
- level++;
- sd = sd->parent;
- if (!sd)
- break;
- }
-}
-#else /* !CONFIG_SCHED_DEBUG */
-
-# define sched_debug_enabled 0
-# define sched_domain_debug(sd, cpu) do { } while (0)
-static inline bool sched_debug(void)
-{
- return false;
-}
-#endif /* CONFIG_SCHED_DEBUG */
-
-static int sd_degenerate(struct sched_domain *sd)
-{
- if (cpumask_weight(sched_domain_span(sd)) == 1)
- return 1;
-
- /* Following flags need at least 2 groups */
- if (sd->flags & (SD_LOAD_BALANCE |
- SD_BALANCE_NEWIDLE |
- SD_BALANCE_FORK |
- SD_BALANCE_EXEC |
- SD_SHARE_CPUCAPACITY |
- SD_ASYM_CPUCAPACITY |
- SD_SHARE_PKG_RESOURCES |
- SD_SHARE_POWERDOMAIN)) {
- if (sd->groups != sd->groups->next)
- return 0;
- }
-
- /* Following flags don't use groups */
- if (sd->flags & (SD_WAKE_AFFINE))
- return 0;
-
- return 1;
-}
-
-static int
-sd_parent_degenerate(struct sched_domain *sd, struct sched_domain *parent)
-{
- unsigned long cflags = sd->flags, pflags = parent->flags;
-
- if (sd_degenerate(parent))
- return 1;
-
- if (!cpumask_equal(sched_domain_span(sd), sched_domain_span(parent)))
- return 0;
-
- /* Flags needing groups don't count if only 1 group in parent */
- if (parent->groups == parent->groups->next) {
- pflags &= ~(SD_LOAD_BALANCE |
- SD_BALANCE_NEWIDLE |
- SD_BALANCE_FORK |
- SD_BALANCE_EXEC |
- SD_ASYM_CPUCAPACITY |
- SD_SHARE_CPUCAPACITY |
- SD_SHARE_PKG_RESOURCES |
- SD_PREFER_SIBLING |
- SD_SHARE_POWERDOMAIN);
- if (nr_node_ids == 1)
- pflags &= ~SD_SERIALIZE;
- }
- if (~cflags & pflags)
- return 0;
-
- return 1;
-}
-
-static void free_rootdomain(struct rcu_head *rcu)
-{
- struct root_domain *rd = container_of(rcu, struct root_domain, rcu);
-
- cpupri_cleanup(&rd->cpupri);
- cpudl_cleanup(&rd->cpudl);
- free_cpumask_var(rd->dlo_mask);
- free_cpumask_var(rd->rto_mask);
- free_cpumask_var(rd->online);
- free_cpumask_var(rd->span);
- kfree(rd);
-}
-
-static void rq_attach_root(struct rq *rq, struct root_domain *rd)
-{
- struct root_domain *old_rd = NULL;
- unsigned long flags;
-
- raw_spin_lock_irqsave(&rq->lock, flags);
-
- if (rq->rd) {
- old_rd = rq->rd;
-
- if (cpumask_test_cpu(rq->cpu, old_rd->online))
- set_rq_offline(rq);
-
- cpumask_clear_cpu(rq->cpu, old_rd->span);
-
- /*
- * If we dont want to free the old_rd yet then
- * set old_rd to NULL to skip the freeing later
- * in this function:
- */
- if (!atomic_dec_and_test(&old_rd->refcount))
- old_rd = NULL;
- }
-
- atomic_inc(&rd->refcount);
- rq->rd = rd;
-
- cpumask_set_cpu(rq->cpu, rd->span);
- if (cpumask_test_cpu(rq->cpu, cpu_active_mask))
- set_rq_online(rq);
-
- raw_spin_unlock_irqrestore(&rq->lock, flags);
-
- if (old_rd)
- call_rcu_sched(&old_rd->rcu, free_rootdomain);
-}
-
-static int init_rootdomain(struct root_domain *rd)
-{
- memset(rd, 0, sizeof(*rd));
-
- if (!zalloc_cpumask_var(&rd->span, GFP_KERNEL))
- goto out;
- if (!zalloc_cpumask_var(&rd->online, GFP_KERNEL))
- goto free_span;
- if (!zalloc_cpumask_var(&rd->dlo_mask, GFP_KERNEL))
- goto free_online;
- if (!zalloc_cpumask_var(&rd->rto_mask, GFP_KERNEL))
- goto free_dlo_mask;
-
- init_dl_bw(&rd->dl_bw);
- if (cpudl_init(&rd->cpudl) != 0)
- goto free_rto_mask;
-
- if (cpupri_init(&rd->cpupri) != 0)
- goto free_cpudl;
- return 0;
-
-free_cpudl:
- cpudl_cleanup(&rd->cpudl);
-free_rto_mask:
- free_cpumask_var(rd->rto_mask);
-free_dlo_mask:
- free_cpumask_var(rd->dlo_mask);
-free_online:
- free_cpumask_var(rd->online);
-free_span:
- free_cpumask_var(rd->span);
-out:
- return -ENOMEM;
-}
-
-/*
- * By default the system creates a single root-domain with all CPUs as
- * members (mimicking the global state we have today).
- */
-struct root_domain def_root_domain;
-
-static void init_defrootdomain(void)
-{
- init_rootdomain(&def_root_domain);
-
- atomic_set(&def_root_domain.refcount, 1);
-}
-
-static struct root_domain *alloc_rootdomain(void)
-{
- struct root_domain *rd;
-
- rd = kmalloc(sizeof(*rd), GFP_KERNEL);
- if (!rd)
- return NULL;
-
- if (init_rootdomain(rd) != 0) {
- kfree(rd);
- return NULL;
- }
-
- return rd;
-}
-
-static void free_sched_groups(struct sched_group *sg, int free_sgc)
-{
- struct sched_group *tmp, *first;
-
- if (!sg)
- return;
-
- first = sg;
- do {
- tmp = sg->next;
-
- if (free_sgc && atomic_dec_and_test(&sg->sgc->ref))
- kfree(sg->sgc);
-
- kfree(sg);
- sg = tmp;
- } while (sg != first);
-}
-
-static void destroy_sched_domain(struct sched_domain *sd)
-{
- /*
- * If its an overlapping domain it has private groups, iterate and
- * nuke them all.
- */
- if (sd->flags & SD_OVERLAP) {
- free_sched_groups(sd->groups, 1);
- } else if (atomic_dec_and_test(&sd->groups->ref)) {
- kfree(sd->groups->sgc);
- kfree(sd->groups);
- }
- if (sd->shared && atomic_dec_and_test(&sd->shared->ref))
- kfree(sd->shared);
- kfree(sd);
-}
-
-static void destroy_sched_domains_rcu(struct rcu_head *rcu)
-{
- struct sched_domain *sd = container_of(rcu, struct sched_domain, rcu);
-
- while (sd) {
- struct sched_domain *parent = sd->parent;
- destroy_sched_domain(sd);
- sd = parent;
- }
-}
-
-static void destroy_sched_domains(struct sched_domain *sd)
-{
- if (sd)
- call_rcu(&sd->rcu, destroy_sched_domains_rcu);
-}
-
-/*
- * Keep a special pointer to the highest sched_domain that has
- * SD_SHARE_PKG_RESOURCE set (Last Level Cache Domain) for this
- * allows us to avoid some pointer chasing select_idle_sibling().
- *
- * Also keep a unique ID per domain (we use the first CPU number in
- * the cpumask of the domain), this allows us to quickly tell if
- * two CPUs are in the same cache domain, see cpus_share_cache().
- */
-DEFINE_PER_CPU(struct sched_domain *, sd_llc);
-DEFINE_PER_CPU(int, sd_llc_size);
-DEFINE_PER_CPU(int, sd_llc_id);
-DEFINE_PER_CPU(struct sched_domain_shared *, sd_llc_shared);
-DEFINE_PER_CPU(struct sched_domain *, sd_numa);
-DEFINE_PER_CPU(struct sched_domain *, sd_asym);
-
-static void update_top_cache_domain(int cpu)
-{
- struct sched_domain_shared *sds = NULL;
- struct sched_domain *sd;
- int id = cpu;
- int size = 1;
-
- sd = highest_flag_domain(cpu, SD_SHARE_PKG_RESOURCES);
- if (sd) {
- id = cpumask_first(sched_domain_span(sd));
- size = cpumask_weight(sched_domain_span(sd));
- sds = sd->shared;
- }
-
- rcu_assign_pointer(per_cpu(sd_llc, cpu), sd);
- per_cpu(sd_llc_size, cpu) = size;
- per_cpu(sd_llc_id, cpu) = id;
- rcu_assign_pointer(per_cpu(sd_llc_shared, cpu), sds);
-
- sd = lowest_flag_domain(cpu, SD_NUMA);
- rcu_assign_pointer(per_cpu(sd_numa, cpu), sd);
-
- sd = highest_flag_domain(cpu, SD_ASYM_PACKING);
- rcu_assign_pointer(per_cpu(sd_asym, cpu), sd);
-}
-
-/*
- * Attach the domain 'sd' to 'cpu' as its base domain. Callers must
- * hold the hotplug lock.
- */
-static void
-cpu_attach_domain(struct sched_domain *sd, struct root_domain *rd, int cpu)
-{
- struct rq *rq = cpu_rq(cpu);
- struct sched_domain *tmp;
-
- /* Remove the sched domains which do not contribute to scheduling. */
- for (tmp = sd; tmp; ) {
- struct sched_domain *parent = tmp->parent;
- if (!parent)
- break;
-
- if (sd_parent_degenerate(tmp, parent)) {
- tmp->parent = parent->parent;
- if (parent->parent)
- parent->parent->child = tmp;
- /*
- * Transfer SD_PREFER_SIBLING down in case of a
- * degenerate parent; the spans match for this
- * so the property transfers.
- */
- if (parent->flags & SD_PREFER_SIBLING)
- tmp->flags |= SD_PREFER_SIBLING;
- destroy_sched_domain(parent);
- } else
- tmp = tmp->parent;
- }
-
- if (sd && sd_degenerate(sd)) {
- tmp = sd;
- sd = sd->parent;
- destroy_sched_domain(tmp);
- if (sd)
- sd->child = NULL;
- }
-
- sched_domain_debug(sd, cpu);
-
- rq_attach_root(rq, rd);
- tmp = rq->sd;
- rcu_assign_pointer(rq->sd, sd);
- destroy_sched_domains(tmp);
-
- update_top_cache_domain(cpu);
-}
-
-/* Setup the mask of CPUs configured for isolated domains */
-static int __init isolated_cpu_setup(char *str)
-{
- int ret;
-
- alloc_bootmem_cpumask_var(&cpu_isolated_map);
- ret = cpulist_parse(str, cpu_isolated_map);
- if (ret) {
- pr_err("sched: Error, all isolcpus= values must be between 0 and %d\n", nr_cpu_ids);
- return 0;
- }
- return 1;
-}
-__setup("isolcpus=", isolated_cpu_setup);
-
-struct s_data {
- struct sched_domain ** __percpu sd;
- struct root_domain *rd;
-};
-
-enum s_alloc {
- sa_rootdomain,
- sa_sd,
- sa_sd_storage,
- sa_none,
-};
-
-/*
- * Build an iteration mask that can exclude certain CPUs from the upwards
- * domain traversal.
- *
- * Asymmetric node setups can result in situations where the domain tree is of
- * unequal depth, make sure to skip domains that already cover the entire
- * range.
- *
- * In that case build_sched_domains() will have terminated the iteration early
- * and our sibling sd spans will be empty. Domains should always include the
- * CPU they're built on, so check that.
- */
-static void build_group_mask(struct sched_domain *sd, struct sched_group *sg)
-{
- const struct cpumask *span = sched_domain_span(sd);
- struct sd_data *sdd = sd->private;
- struct sched_domain *sibling;
- int i;
-
- for_each_cpu(i, span) {
- sibling = *per_cpu_ptr(sdd->sd, i);
- if (!cpumask_test_cpu(i, sched_domain_span(sibling)))
- continue;
-
- cpumask_set_cpu(i, sched_group_mask(sg));
- }
-}
-
-/*
- * Return the canonical balance CPU for this group, this is the first CPU
- * of this group that's also in the iteration mask.
- */
-int group_balance_cpu(struct sched_group *sg)
-{
- return cpumask_first_and(sched_group_cpus(sg), sched_group_mask(sg));
-}
-
-static int
-build_overlap_sched_groups(struct sched_domain *sd, int cpu)
-{
- struct sched_group *first = NULL, *last = NULL, *groups = NULL, *sg;
- const struct cpumask *span = sched_domain_span(sd);
- struct cpumask *covered = sched_domains_tmpmask;
- struct sd_data *sdd = sd->private;
- struct sched_domain *sibling;
- int i;
-
- cpumask_clear(covered);
-
- for_each_cpu(i, span) {
- struct cpumask *sg_span;
-
- if (cpumask_test_cpu(i, covered))
- continue;
-
- sibling = *per_cpu_ptr(sdd->sd, i);
-
- /* See the comment near build_group_mask(). */
- if (!cpumask_test_cpu(i, sched_domain_span(sibling)))
- continue;
-
- sg = kzalloc_node(sizeof(struct sched_group) + cpumask_size(),
- GFP_KERNEL, cpu_to_node(cpu));
-
- if (!sg)
- goto fail;
-
- sg_span = sched_group_cpus(sg);
- if (sibling->child)
- cpumask_copy(sg_span, sched_domain_span(sibling->child));
- else
- cpumask_set_cpu(i, sg_span);
-
- cpumask_or(covered, covered, sg_span);
-
- sg->sgc = *per_cpu_ptr(sdd->sgc, i);
- if (atomic_inc_return(&sg->sgc->ref) == 1)
- build_group_mask(sd, sg);
-
- /*
- * Initialize sgc->capacity such that even if we mess up the
- * domains and no possible iteration will get us here, we won't
- * die on a /0 trap.
- */
- sg->sgc->capacity = SCHED_CAPACITY_SCALE * cpumask_weight(sg_span);
- sg->sgc->min_capacity = SCHED_CAPACITY_SCALE;
-
- /*
- * Make sure the first group of this domain contains the
- * canonical balance CPU. Otherwise the sched_domain iteration
- * breaks. See update_sg_lb_stats().
- */
- if ((!groups && cpumask_test_cpu(cpu, sg_span)) ||
- group_balance_cpu(sg) == cpu)
- groups = sg;
-
- if (!first)
- first = sg;
- if (last)
- last->next = sg;
- last = sg;
- last->next = first;
- }
- sd->groups = groups;
-
- return 0;
-
-fail:
- free_sched_groups(first, 0);
-
- return -ENOMEM;
-}
-
-static int get_group(int cpu, struct sd_data *sdd, struct sched_group **sg)
-{
- struct sched_domain *sd = *per_cpu_ptr(sdd->sd, cpu);
- struct sched_domain *child = sd->child;
-
- if (child)
- cpu = cpumask_first(sched_domain_span(child));
-
- if (sg) {
- *sg = *per_cpu_ptr(sdd->sg, cpu);
- (*sg)->sgc = *per_cpu_ptr(sdd->sgc, cpu);
-
- /* For claim_allocations: */
- atomic_set(&(*sg)->sgc->ref, 1);
- }
-
- return cpu;
-}
-
-/*
- * build_sched_groups will build a circular linked list of the groups
- * covered by the given span, and will set each group's ->cpumask correctly,
- * and ->cpu_capacity to 0.
- *
- * Assumes the sched_domain tree is fully constructed
- */
-static int
-build_sched_groups(struct sched_domain *sd, int cpu)
-{
- struct sched_group *first = NULL, *last = NULL;
- struct sd_data *sdd = sd->private;
- const struct cpumask *span = sched_domain_span(sd);
- struct cpumask *covered;
- int i;
-
- get_group(cpu, sdd, &sd->groups);
- atomic_inc(&sd->groups->ref);
-
- if (cpu != cpumask_first(span))
- return 0;
-
- lockdep_assert_held(&sched_domains_mutex);
- covered = sched_domains_tmpmask;
-
- cpumask_clear(covered);
-
- for_each_cpu(i, span) {
- struct sched_group *sg;
- int group, j;
-
- if (cpumask_test_cpu(i, covered))
- continue;
-
- group = get_group(i, sdd, &sg);
- cpumask_setall(sched_group_mask(sg));
-
- for_each_cpu(j, span) {
- if (get_group(j, sdd, NULL) != group)
- continue;
-
- cpumask_set_cpu(j, covered);
- cpumask_set_cpu(j, sched_group_cpus(sg));
- }
-
- if (!first)
- first = sg;
- if (last)
- last->next = sg;
- last = sg;
- }
- last->next = first;
-
- return 0;
-}
-
-/*
- * Initialize sched groups cpu_capacity.
- *
- * cpu_capacity indicates the capacity of sched group, which is used while
- * distributing the load between different sched groups in a sched domain.
- * Typically cpu_capacity for all the groups in a sched domain will be same
- * unless there are asymmetries in the topology. If there are asymmetries,
- * group having more cpu_capacity will pickup more load compared to the
- * group having less cpu_capacity.
- */
-static void init_sched_groups_capacity(int cpu, struct sched_domain *sd)
-{
- struct sched_group *sg = sd->groups;
-
- WARN_ON(!sg);
-
- do {
- int cpu, max_cpu = -1;
-
- sg->group_weight = cpumask_weight(sched_group_cpus(sg));
-
- if (!(sd->flags & SD_ASYM_PACKING))
- goto next;
-
- for_each_cpu(cpu, sched_group_cpus(sg)) {
- if (max_cpu < 0)
- max_cpu = cpu;
- else if (sched_asym_prefer(cpu, max_cpu))
- max_cpu = cpu;
- }
- sg->asym_prefer_cpu = max_cpu;
-
-next:
- sg = sg->next;
- } while (sg != sd->groups);
-
- if (cpu != group_balance_cpu(sg))
- return;
-
- update_group_capacity(sd, cpu);
-}
-
-/*
- * Initializers for schedule domains
- * Non-inlined to reduce accumulated stack pressure in build_sched_domains()
- */
-
-static int default_relax_domain_level = -1;
-int sched_domain_level_max;
-
-static int __init setup_relax_domain_level(char *str)
-{
- if (kstrtoint(str, 0, &default_relax_domain_level))
- pr_warn("Unable to set relax_domain_level\n");
-
- return 1;
-}
-__setup("relax_domain_level=", setup_relax_domain_level);
-
-static void set_domain_attribute(struct sched_domain *sd,
- struct sched_domain_attr *attr)
-{
- int request;
-
- if (!attr || attr->relax_domain_level < 0) {
- if (default_relax_domain_level < 0)
- return;
- else
- request = default_relax_domain_level;
- } else
- request = attr->relax_domain_level;
- if (request < sd->level) {
- /* Turn off idle balance on this domain: */
- sd->flags &= ~(SD_BALANCE_WAKE|SD_BALANCE_NEWIDLE);
- } else {
- /* Turn on idle balance on this domain: */
- sd->flags |= (SD_BALANCE_WAKE|SD_BALANCE_NEWIDLE);
- }
-}
-
-static void __sdt_free(const struct cpumask *cpu_map);
-static int __sdt_alloc(const struct cpumask *cpu_map);
-
-static void __free_domain_allocs(struct s_data *d, enum s_alloc what,
- const struct cpumask *cpu_map)
-{
- switch (what) {
- case sa_rootdomain:
- if (!atomic_read(&d->rd->refcount))
- free_rootdomain(&d->rd->rcu);
- /* Fall through */
- case sa_sd:
- free_percpu(d->sd);
- /* Fall through */
- case sa_sd_storage:
- __sdt_free(cpu_map);
- /* Fall through */
- case sa_none:
- break;
- }
-}
-
-static enum s_alloc
-__visit_domain_allocation_hell(struct s_data *d, const struct cpumask *cpu_map)
-{
- memset(d, 0, sizeof(*d));
-
- if (__sdt_alloc(cpu_map))
- return sa_sd_storage;
- d->sd = alloc_percpu(struct sched_domain *);
- if (!d->sd)
- return sa_sd_storage;
- d->rd = alloc_rootdomain();
- if (!d->rd)
- return sa_sd;
- return sa_rootdomain;
-}
-
-/*
- * NULL the sd_data elements we've used to build the sched_domain and
- * sched_group structure so that the subsequent __free_domain_allocs()
- * will not free the data we're using.
- */
-static void claim_allocations(int cpu, struct sched_domain *sd)
-{
- struct sd_data *sdd = sd->private;
-
- WARN_ON_ONCE(*per_cpu_ptr(sdd->sd, cpu) != sd);
- *per_cpu_ptr(sdd->sd, cpu) = NULL;
-
- if (atomic_read(&(*per_cpu_ptr(sdd->sds, cpu))->ref))
- *per_cpu_ptr(sdd->sds, cpu) = NULL;
-
- if (atomic_read(&(*per_cpu_ptr(sdd->sg, cpu))->ref))
- *per_cpu_ptr(sdd->sg, cpu) = NULL;
-
- if (atomic_read(&(*per_cpu_ptr(sdd->sgc, cpu))->ref))
- *per_cpu_ptr(sdd->sgc, cpu) = NULL;
-}
-
-#ifdef CONFIG_NUMA
-static int sched_domains_numa_levels;
-enum numa_topology_type sched_numa_topology_type;
-static int *sched_domains_numa_distance;
-int sched_max_numa_distance;
-static struct cpumask ***sched_domains_numa_masks;
-static int sched_domains_curr_level;
-#endif
-
-/*
- * SD_flags allowed in topology descriptions.
- *
- * These flags are purely descriptive of the topology and do not prescribe
- * behaviour. Behaviour is artificial and mapped in the below sd_init()
- * function:
- *
- * SD_SHARE_CPUCAPACITY - describes SMT topologies
- * SD_SHARE_PKG_RESOURCES - describes shared caches
- * SD_NUMA - describes NUMA topologies
- * SD_SHARE_POWERDOMAIN - describes shared power domain
- * SD_ASYM_CPUCAPACITY - describes mixed capacity topologies
- *
- * Odd one out, which beside describing the topology has a quirk also
- * prescribes the desired behaviour that goes along with it:
- *
- * SD_ASYM_PACKING - describes SMT quirks
- */
-#define TOPOLOGY_SD_FLAGS \
- (SD_SHARE_CPUCAPACITY | \
- SD_SHARE_PKG_RESOURCES | \
- SD_NUMA | \
- SD_ASYM_PACKING | \
- SD_ASYM_CPUCAPACITY | \
- SD_SHARE_POWERDOMAIN)
-
-static struct sched_domain *
-sd_init(struct sched_domain_topology_level *tl,
- const struct cpumask *cpu_map,
- struct sched_domain *child, int cpu)
-{
- struct sd_data *sdd = &tl->data;
- struct sched_domain *sd = *per_cpu_ptr(sdd->sd, cpu);
- int sd_id, sd_weight, sd_flags = 0;
-
-#ifdef CONFIG_NUMA
- /*
- * Ugly hack to pass state to sd_numa_mask()...
- */
- sched_domains_curr_level = tl->numa_level;
-#endif
-
- sd_weight = cpumask_weight(tl->mask(cpu));
-
- if (tl->sd_flags)
- sd_flags = (*tl->sd_flags)();
- if (WARN_ONCE(sd_flags & ~TOPOLOGY_SD_FLAGS,
- "wrong sd_flags in topology description\n"))
- sd_flags &= ~TOPOLOGY_SD_FLAGS;
-
- *sd = (struct sched_domain){
- .min_interval = sd_weight,
- .max_interval = 2*sd_weight,
- .busy_factor = 32,
- .imbalance_pct = 125,
-
- .cache_nice_tries = 0,
- .busy_idx = 0,
- .idle_idx = 0,
- .newidle_idx = 0,
- .wake_idx = 0,
- .forkexec_idx = 0,
-
- .flags = 1*SD_LOAD_BALANCE
- | 1*SD_BALANCE_NEWIDLE
- | 1*SD_BALANCE_EXEC
- | 1*SD_BALANCE_FORK
- | 0*SD_BALANCE_WAKE
- | 1*SD_WAKE_AFFINE
- | 0*SD_SHARE_CPUCAPACITY
- | 0*SD_SHARE_PKG_RESOURCES
- | 0*SD_SERIALIZE
- | 0*SD_PREFER_SIBLING
- | 0*SD_NUMA
- | sd_flags
- ,
-
- .last_balance = jiffies,
- .balance_interval = sd_weight,
- .smt_gain = 0,
- .max_newidle_lb_cost = 0,
- .next_decay_max_lb_cost = jiffies,
- .child = child,
-#ifdef CONFIG_SCHED_DEBUG
- .name = tl->name,
-#endif
- };
-
- cpumask_and(sched_domain_span(sd), cpu_map, tl->mask(cpu));
- sd_id = cpumask_first(sched_domain_span(sd));
-
- /*
- * Convert topological properties into behaviour.
- */
-
- if (sd->flags & SD_ASYM_CPUCAPACITY) {
- struct sched_domain *t = sd;
-
- for_each_lower_domain(t)
- t->flags |= SD_BALANCE_WAKE;
- }
-
- if (sd->flags & SD_SHARE_CPUCAPACITY) {
- sd->flags |= SD_PREFER_SIBLING;
- sd->imbalance_pct = 110;
- sd->smt_gain = 1178; /* ~15% */
-
- } else if (sd->flags & SD_SHARE_PKG_RESOURCES) {
- sd->imbalance_pct = 117;
- sd->cache_nice_tries = 1;
- sd->busy_idx = 2;
-
-#ifdef CONFIG_NUMA
- } else if (sd->flags & SD_NUMA) {
- sd->cache_nice_tries = 2;
- sd->busy_idx = 3;
- sd->idle_idx = 2;
-
- sd->flags |= SD_SERIALIZE;
- if (sched_domains_numa_distance[tl->numa_level] > RECLAIM_DISTANCE) {
- sd->flags &= ~(SD_BALANCE_EXEC |
- SD_BALANCE_FORK |
- SD_WAKE_AFFINE);
- }
-
-#endif
- } else {
- sd->flags |= SD_PREFER_SIBLING;
- sd->cache_nice_tries = 1;
- sd->busy_idx = 2;
- sd->idle_idx = 1;
- }
-
- /*
- * For all levels sharing cache; connect a sched_domain_shared
- * instance.
- */
- if (sd->flags & SD_SHARE_PKG_RESOURCES) {
- sd->shared = *per_cpu_ptr(sdd->sds, sd_id);
- atomic_inc(&sd->shared->ref);
- atomic_set(&sd->shared->nr_busy_cpus, sd_weight);
- }
-
- sd->private = sdd;
-
- return sd;
-}
-
-/*
- * Topology list, bottom-up.
- */
-static struct sched_domain_topology_level default_topology[] = {
-#ifdef CONFIG_SCHED_SMT
- { cpu_smt_mask, cpu_smt_flags, SD_INIT_NAME(SMT) },
-#endif
-#ifdef CONFIG_SCHED_MC
- { cpu_coregroup_mask, cpu_core_flags, SD_INIT_NAME(MC) },
-#endif
- { cpu_cpu_mask, SD_INIT_NAME(DIE) },
- { NULL, },
-};
-
-static struct sched_domain_topology_level *sched_domain_topology =
- default_topology;
-
-#define for_each_sd_topology(tl) \
- for (tl = sched_domain_topology; tl->mask; tl++)
-
-void set_sched_topology(struct sched_domain_topology_level *tl)
-{
- if (WARN_ON_ONCE(sched_smp_initialized))
- return;
-
- sched_domain_topology = tl;
-}
-
-#ifdef CONFIG_NUMA
-
-static const struct cpumask *sd_numa_mask(int cpu)
-{
- return sched_domains_numa_masks[sched_domains_curr_level][cpu_to_node(cpu)];
-}
-
-static void sched_numa_warn(const char *str)
-{
- static int done = false;
- int i,j;
-
- if (done)
- return;
-
- done = true;
-
- printk(KERN_WARNING "ERROR: %s\n\n", str);
-
- for (i = 0; i < nr_node_ids; i++) {
- printk(KERN_WARNING " ");
- for (j = 0; j < nr_node_ids; j++)
- printk(KERN_CONT "%02d ", node_distance(i,j));
- printk(KERN_CONT "\n");
- }
- printk(KERN_WARNING "\n");
-}
-
-bool find_numa_distance(int distance)
-{
- int i;
-
- if (distance == node_distance(0, 0))
- return true;
-
- for (i = 0; i < sched_domains_numa_levels; i++) {
- if (sched_domains_numa_distance[i] == distance)
- return true;
- }
-
- return false;
-}
-
-/*
- * A system can have three types of NUMA topology:
- * NUMA_DIRECT: all nodes are directly connected, or not a NUMA system
- * NUMA_GLUELESS_MESH: some nodes reachable through intermediary nodes
- * NUMA_BACKPLANE: nodes can reach other nodes through a backplane
- *
- * The difference between a glueless mesh topology and a backplane
- * topology lies in whether communication between not directly
- * connected nodes goes through intermediary nodes (where programs
- * could run), or through backplane controllers. This affects
- * placement of programs.
- *
- * The type of topology can be discerned with the following tests:
- * - If the maximum distance between any nodes is 1 hop, the system
- * is directly connected.
- * - If for two nodes A and B, located N > 1 hops away from each other,
- * there is an intermediary node C, which is < N hops away from both
- * nodes A and B, the system is a glueless mesh.
- */
-static void init_numa_topology_type(void)
-{
- int a, b, c, n;
-
- n = sched_max_numa_distance;
-
- if (sched_domains_numa_levels <= 1) {
- sched_numa_topology_type = NUMA_DIRECT;
- return;
- }
-
- for_each_online_node(a) {
- for_each_online_node(b) {
- /* Find two nodes furthest removed from each other. */
- if (node_distance(a, b) < n)
- continue;
-
- /* Is there an intermediary node between a and b? */
- for_each_online_node(c) {
- if (node_distance(a, c) < n &&
- node_distance(b, c) < n) {
- sched_numa_topology_type =
- NUMA_GLUELESS_MESH;
- return;
- }
- }
-
- sched_numa_topology_type = NUMA_BACKPLANE;
- return;
- }
- }
-}
-
-static void sched_init_numa(void)
-{
- int next_distance, curr_distance = node_distance(0, 0);
- struct sched_domain_topology_level *tl;
- int level = 0;
- int i, j, k;
-
- sched_domains_numa_distance = kzalloc(sizeof(int) * nr_node_ids, GFP_KERNEL);
- if (!sched_domains_numa_distance)
- return;
-
- /*
- * O(nr_nodes^2) deduplicating selection sort -- in order to find the
- * unique distances in the node_distance() table.
- *
- * Assumes node_distance(0,j) includes all distances in
- * node_distance(i,j) in order to avoid cubic time.
- */
- next_distance = curr_distance;
- for (i = 0; i < nr_node_ids; i++) {
- for (j = 0; j < nr_node_ids; j++) {
- for (k = 0; k < nr_node_ids; k++) {
- int distance = node_distance(i, k);
-
- if (distance > curr_distance &&
- (distance < next_distance ||
- next_distance == curr_distance))
- next_distance = distance;
-
- /*
- * While not a strong assumption it would be nice to know
- * about cases where if node A is connected to B, B is not
- * equally connected to A.
- */
- if (sched_debug() && node_distance(k, i) != distance)
- sched_numa_warn("Node-distance not symmetric");
-
- if (sched_debug() && i && !find_numa_distance(distance))
- sched_numa_warn("Node-0 not representative");
- }
- if (next_distance != curr_distance) {
- sched_domains_numa_distance[level++] = next_distance;
- sched_domains_numa_levels = level;
- curr_distance = next_distance;
- } else break;
- }
-
- /*
- * In case of sched_debug() we verify the above assumption.
- */
- if (!sched_debug())
- break;
- }
-
- if (!level)
- return;
-
- /*
- * 'level' contains the number of unique distances, excluding the
- * identity distance node_distance(i,i).
- *
- * The sched_domains_numa_distance[] array includes the actual distance
- * numbers.
- */
-
- /*
- * Here, we should temporarily reset sched_domains_numa_levels to 0.
- * If it fails to allocate memory for array sched_domains_numa_masks[][],
- * the array will contain less then 'level' members. This could be
- * dangerous when we use it to iterate array sched_domains_numa_masks[][]
- * in other functions.
- *
- * We reset it to 'level' at the end of this function.
- */
- sched_domains_numa_levels = 0;
-
- sched_domains_numa_masks = kzalloc(sizeof(void *) * level, GFP_KERNEL);
- if (!sched_domains_numa_masks)
- return;
-
- /*
- * Now for each level, construct a mask per node which contains all
- * CPUs of nodes that are that many hops away from us.
- */
- for (i = 0; i < level; i++) {
- sched_domains_numa_masks[i] =
- kzalloc(nr_node_ids * sizeof(void *), GFP_KERNEL);
- if (!sched_domains_numa_masks[i])
- return;
-
- for (j = 0; j < nr_node_ids; j++) {
- struct cpumask *mask = kzalloc(cpumask_size(), GFP_KERNEL);
- if (!mask)
- return;
-
- sched_domains_numa_masks[i][j] = mask;
-
- for_each_node(k) {
- if (node_distance(j, k) > sched_domains_numa_distance[i])
- continue;
-
- cpumask_or(mask, mask, cpumask_of_node(k));
- }
- }
- }
-
- /* Compute default topology size */
- for (i = 0; sched_domain_topology[i].mask; i++);
-
- tl = kzalloc((i + level + 1) *
- sizeof(struct sched_domain_topology_level), GFP_KERNEL);
- if (!tl)
- return;
-
- /*
- * Copy the default topology bits..
- */
- for (i = 0; sched_domain_topology[i].mask; i++)
- tl[i] = sched_domain_topology[i];
-
- /*
- * .. and append 'j' levels of NUMA goodness.
- */
- for (j = 0; j < level; i++, j++) {
- tl[i] = (struct sched_domain_topology_level){
- .mask = sd_numa_mask,
- .sd_flags = cpu_numa_flags,
- .flags = SDTL_OVERLAP,
- .numa_level = j,
- SD_INIT_NAME(NUMA)
- };
- }
-
- sched_domain_topology = tl;
-
- sched_domains_numa_levels = level;
- sched_max_numa_distance = sched_domains_numa_distance[level - 1];
-
- init_numa_topology_type();
-}
-
-static void sched_domains_numa_masks_set(unsigned int cpu)
-{
- int node = cpu_to_node(cpu);
- int i, j;
-
- for (i = 0; i < sched_domains_numa_levels; i++) {
- for (j = 0; j < nr_node_ids; j++) {
- if (node_distance(j, node) <= sched_domains_numa_distance[i])
- cpumask_set_cpu(cpu, sched_domains_numa_masks[i][j]);
- }
- }
-}
-
-static void sched_domains_numa_masks_clear(unsigned int cpu)
-{
- int i, j;
-
- for (i = 0; i < sched_domains_numa_levels; i++) {
- for (j = 0; j < nr_node_ids; j++)
- cpumask_clear_cpu(cpu, sched_domains_numa_masks[i][j]);
- }
-}
-
-#else
-static inline void sched_init_numa(void) { }
-static void sched_domains_numa_masks_set(unsigned int cpu) { }
-static void sched_domains_numa_masks_clear(unsigned int cpu) { }
-#endif /* CONFIG_NUMA */
-
-static int __sdt_alloc(const struct cpumask *cpu_map)
-{
- struct sched_domain_topology_level *tl;
- int j;
-
- for_each_sd_topology(tl) {
- struct sd_data *sdd = &tl->data;
-
- sdd->sd = alloc_percpu(struct sched_domain *);
- if (!sdd->sd)
- return -ENOMEM;
-
- sdd->sds = alloc_percpu(struct sched_domain_shared *);
- if (!sdd->sds)
- return -ENOMEM;
-
- sdd->sg = alloc_percpu(struct sched_group *);
- if (!sdd->sg)
- return -ENOMEM;
-
- sdd->sgc = alloc_percpu(struct sched_group_capacity *);
- if (!sdd->sgc)
- return -ENOMEM;
-
- for_each_cpu(j, cpu_map) {
- struct sched_domain *sd;
- struct sched_domain_shared *sds;
- struct sched_group *sg;
- struct sched_group_capacity *sgc;
-
- sd = kzalloc_node(sizeof(struct sched_domain) + cpumask_size(),
- GFP_KERNEL, cpu_to_node(j));
- if (!sd)
- return -ENOMEM;
-
- *per_cpu_ptr(sdd->sd, j) = sd;
-
- sds = kzalloc_node(sizeof(struct sched_domain_shared),
- GFP_KERNEL, cpu_to_node(j));
- if (!sds)
- return -ENOMEM;
-
- *per_cpu_ptr(sdd->sds, j) = sds;
-
- sg = kzalloc_node(sizeof(struct sched_group) + cpumask_size(),
- GFP_KERNEL, cpu_to_node(j));
- if (!sg)
- return -ENOMEM;
-
- sg->next = sg;
-
- *per_cpu_ptr(sdd->sg, j) = sg;
-
- sgc = kzalloc_node(sizeof(struct sched_group_capacity) + cpumask_size(),
- GFP_KERNEL, cpu_to_node(j));
- if (!sgc)
- return -ENOMEM;
-
- *per_cpu_ptr(sdd->sgc, j) = sgc;
- }
- }
-
- return 0;
-}
-
-static void __sdt_free(const struct cpumask *cpu_map)
-{
- struct sched_domain_topology_level *tl;
- int j;
-
- for_each_sd_topology(tl) {
- struct sd_data *sdd = &tl->data;
-
- for_each_cpu(j, cpu_map) {
- struct sched_domain *sd;
-
- if (sdd->sd) {
- sd = *per_cpu_ptr(sdd->sd, j);
- if (sd && (sd->flags & SD_OVERLAP))
- free_sched_groups(sd->groups, 0);
- kfree(*per_cpu_ptr(sdd->sd, j));
- }
-
- if (sdd->sds)
- kfree(*per_cpu_ptr(sdd->sds, j));
- if (sdd->sg)
- kfree(*per_cpu_ptr(sdd->sg, j));
- if (sdd->sgc)
- kfree(*per_cpu_ptr(sdd->sgc, j));
- }
- free_percpu(sdd->sd);
- sdd->sd = NULL;
- free_percpu(sdd->sds);
- sdd->sds = NULL;
- free_percpu(sdd->sg);
- sdd->sg = NULL;
- free_percpu(sdd->sgc);
- sdd->sgc = NULL;
- }
-}
-
-struct sched_domain *build_sched_domain(struct sched_domain_topology_level *tl,
- const struct cpumask *cpu_map, struct sched_domain_attr *attr,
- struct sched_domain *child, int cpu)
-{
- struct sched_domain *sd = sd_init(tl, cpu_map, child, cpu);
-
- if (child) {
- sd->level = child->level + 1;
- sched_domain_level_max = max(sched_domain_level_max, sd->level);
- child->parent = sd;
-
- if (!cpumask_subset(sched_domain_span(child),
- sched_domain_span(sd))) {
- pr_err("BUG: arch topology borken\n");
-#ifdef CONFIG_SCHED_DEBUG
- pr_err(" the %s domain not a subset of the %s domain\n",
- child->name, sd->name);
-#endif
- /* Fixup, ensure @sd has at least @child cpus. */
- cpumask_or(sched_domain_span(sd),
- sched_domain_span(sd),
- sched_domain_span(child));
- }
-
- }
- set_domain_attribute(sd, attr);
-
- return sd;
-}
-
-/*
- * Build sched domains for a given set of CPUs and attach the sched domains
- * to the individual CPUs
- */
-static int
-build_sched_domains(const struct cpumask *cpu_map, struct sched_domain_attr *attr)
-{
- enum s_alloc alloc_state;
- struct sched_domain *sd;
- struct s_data d;
- struct rq *rq = NULL;
- int i, ret = -ENOMEM;
-
- alloc_state = __visit_domain_allocation_hell(&d, cpu_map);
- if (alloc_state != sa_rootdomain)
- goto error;
-
- /* Set up domains for CPUs specified by the cpu_map: */
- for_each_cpu(i, cpu_map) {
- struct sched_domain_topology_level *tl;
-
- sd = NULL;
- for_each_sd_topology(tl) {
- sd = build_sched_domain(tl, cpu_map, attr, sd, i);
- if (tl == sched_domain_topology)
- *per_cpu_ptr(d.sd, i) = sd;
- if (tl->flags & SDTL_OVERLAP || sched_feat(FORCE_SD_OVERLAP))
- sd->flags |= SD_OVERLAP;
- if (cpumask_equal(cpu_map, sched_domain_span(sd)))
- break;
- }
- }
-
- /* Build the groups for the domains */
- for_each_cpu(i, cpu_map) {
- for (sd = *per_cpu_ptr(d.sd, i); sd; sd = sd->parent) {
- sd->span_weight = cpumask_weight(sched_domain_span(sd));
- if (sd->flags & SD_OVERLAP) {
- if (build_overlap_sched_groups(sd, i))
- goto error;
- } else {
- if (build_sched_groups(sd, i))
- goto error;
- }
- }
- }
-
- /* Calculate CPU capacity for physical packages and nodes */
- for (i = nr_cpumask_bits-1; i >= 0; i--) {
- if (!cpumask_test_cpu(i, cpu_map))
- continue;
-
- for (sd = *per_cpu_ptr(d.sd, i); sd; sd = sd->parent) {
- claim_allocations(i, sd);
- init_sched_groups_capacity(i, sd);
- }
- }
-
- /* Attach the domains */
- rcu_read_lock();
- for_each_cpu(i, cpu_map) {
- rq = cpu_rq(i);
- sd = *per_cpu_ptr(d.sd, i);
-
- /* Use READ_ONCE()/WRITE_ONCE() to avoid load/store tearing: */
- if (rq->cpu_capacity_orig > READ_ONCE(d.rd->max_cpu_capacity))
- WRITE_ONCE(d.rd->max_cpu_capacity, rq->cpu_capacity_orig);
-
- cpu_attach_domain(sd, d.rd, i);
- }
- rcu_read_unlock();
-
- if (rq && sched_debug_enabled) {
- pr_info("span: %*pbl (max cpu_capacity = %lu)\n",
- cpumask_pr_args(cpu_map), rq->rd->max_cpu_capacity);
- }
-
- ret = 0;
-error:
- __free_domain_allocs(&d, alloc_state, cpu_map);
- return ret;
-}
-
-/* Current sched domains: */
-static cpumask_var_t *doms_cur;
-
-/* Number of sched domains in 'doms_cur': */
-static int ndoms_cur;
-
-/* Attribues of custom domains in 'doms_cur' */
-static struct sched_domain_attr *dattr_cur;
-
-/*
- * Special case: If a kmalloc() of a doms_cur partition (array of
- * cpumask) fails, then fallback to a single sched domain,
- * as determined by the single cpumask fallback_doms.
- */
-static cpumask_var_t fallback_doms;
-
-/*
- * arch_update_cpu_topology lets virtualized architectures update the
- * CPU core maps. It is supposed to return 1 if the topology changed
- * or 0 if it stayed the same.
- */
-int __weak arch_update_cpu_topology(void)
-{
- return 0;
-}
-
-cpumask_var_t *alloc_sched_domains(unsigned int ndoms)
-{
- int i;
- cpumask_var_t *doms;
-
- doms = kmalloc(sizeof(*doms) * ndoms, GFP_KERNEL);
- if (!doms)
- return NULL;
- for (i = 0; i < ndoms; i++) {
- if (!alloc_cpumask_var(&doms[i], GFP_KERNEL)) {
- free_sched_domains(doms, i);
- return NULL;
- }
- }
- return doms;
-}
-
-void free_sched_domains(cpumask_var_t doms[], unsigned int ndoms)
-{
- unsigned int i;
- for (i = 0; i < ndoms; i++)
- free_cpumask_var(doms[i]);
- kfree(doms);
-}
-
-/*
- * Set up scheduler domains and groups. Callers must hold the hotplug lock.
- * For now this just excludes isolated CPUs, but could be used to
- * exclude other special cases in the future.
- */
-static int init_sched_domains(const struct cpumask *cpu_map)
-{
- int err;
-
- arch_update_cpu_topology();
- ndoms_cur = 1;
- doms_cur = alloc_sched_domains(ndoms_cur);
- if (!doms_cur)
- doms_cur = &fallback_doms;
- cpumask_andnot(doms_cur[0], cpu_map, cpu_isolated_map);
- err = build_sched_domains(doms_cur[0], NULL);
- register_sched_domain_sysctl();
-
- return err;
-}
-
-/*
- * Detach sched domains from a group of CPUs specified in cpu_map
- * These CPUs will now be attached to the NULL domain
- */
-static void detach_destroy_domains(const struct cpumask *cpu_map)
-{
- int i;
-
- rcu_read_lock();
- for_each_cpu(i, cpu_map)
- cpu_attach_domain(NULL, &def_root_domain, i);
- rcu_read_unlock();
-}
-
-/* handle null as "default" */
-static int dattrs_equal(struct sched_domain_attr *cur, int idx_cur,
- struct sched_domain_attr *new, int idx_new)
-{
- struct sched_domain_attr tmp;
-
- /* Fast path: */
- if (!new && !cur)
- return 1;
-
- tmp = SD_ATTR_INIT;
- return !memcmp(cur ? (cur + idx_cur) : &tmp,
- new ? (new + idx_new) : &tmp,
- sizeof(struct sched_domain_attr));
-}
-
-/*
- * Partition sched domains as specified by the 'ndoms_new'
- * cpumasks in the array doms_new[] of cpumasks. This compares
- * doms_new[] to the current sched domain partitioning, doms_cur[].
- * It destroys each deleted domain and builds each new domain.
- *
- * 'doms_new' is an array of cpumask_var_t's of length 'ndoms_new'.
- * The masks don't intersect (don't overlap.) We should setup one
- * sched domain for each mask. CPUs not in any of the cpumasks will
- * not be load balanced. If the same cpumask appears both in the
- * current 'doms_cur' domains and in the new 'doms_new', we can leave
- * it as it is.
- *
- * The passed in 'doms_new' should be allocated using
- * alloc_sched_domains. This routine takes ownership of it and will
- * free_sched_domains it when done with it. If the caller failed the
- * alloc call, then it can pass in doms_new == NULL && ndoms_new == 1,
- * and partition_sched_domains() will fallback to the single partition
- * 'fallback_doms', it also forces the domains to be rebuilt.
- *
- * If doms_new == NULL it will be replaced with cpu_online_mask.
- * ndoms_new == 0 is a special case for destroying existing domains,
- * and it will not create the default domain.
- *
- * Call with hotplug lock held
- */
-void partition_sched_domains(int ndoms_new, cpumask_var_t doms_new[],
- struct sched_domain_attr *dattr_new)
-{
- int i, j, n;
- int new_topology;
-
- mutex_lock(&sched_domains_mutex);
-
- /* Always unregister in case we don't destroy any domains: */
- unregister_sched_domain_sysctl();
-
- /* Let the architecture update CPU core mappings: */
- new_topology = arch_update_cpu_topology();
-
- n = doms_new ? ndoms_new : 0;
-
- /* Destroy deleted domains: */
- for (i = 0; i < ndoms_cur; i++) {
- for (j = 0; j < n && !new_topology; j++) {
- if (cpumask_equal(doms_cur[i], doms_new[j])
- && dattrs_equal(dattr_cur, i, dattr_new, j))
- goto match1;
- }
- /* No match - a current sched domain not in new doms_new[] */
- detach_destroy_domains(doms_cur[i]);
-match1:
- ;
- }
-
- n = ndoms_cur;
- if (doms_new == NULL) {
- n = 0;
- doms_new = &fallback_doms;
- cpumask_andnot(doms_new[0], cpu_active_mask, cpu_isolated_map);
- WARN_ON_ONCE(dattr_new);
- }
-
- /* Build new domains: */
- for (i = 0; i < ndoms_new; i++) {
- for (j = 0; j < n && !new_topology; j++) {
- if (cpumask_equal(doms_new[i], doms_cur[j])
- && dattrs_equal(dattr_new, i, dattr_cur, j))
- goto match2;
- }
- /* No match - add a new doms_new */
- build_sched_domains(doms_new[i], dattr_new ? dattr_new + i : NULL);
-match2:
- ;
- }
-
- /* Remember the new sched domains: */
- if (doms_cur != &fallback_doms)
- free_sched_domains(doms_cur, ndoms_cur);
-
- kfree(dattr_cur);
- doms_cur = doms_new;
- dattr_cur = dattr_new;
- ndoms_cur = ndoms_new;
-
- register_sched_domain_sysctl();
-
- mutex_unlock(&sched_domains_mutex);
-}
-
/*
* used to mark begin/end of suspend/resume:
*/
diff --git a/kernel/sched/sched.h b/kernel/sched/sched.h
index 8ff5cc539e8a..17ed94b9b413 100644
--- a/kernel/sched/sched.h
+++ b/kernel/sched/sched.h
@@ -223,7 +223,7 @@ bool __dl_overflow(struct dl_bw *dl_b, int cpus, u64 old_bw, u64 new_bw)
dl_b->bw * cpus < dl_b->total_bw - old_bw + new_bw;
}
-extern struct mutex sched_domains_mutex;
+extern void init_dl_bw(struct dl_bw *dl_b);
#ifdef CONFIG_CGROUP_SCHED
@@ -584,6 +584,13 @@ struct root_domain {
};
extern struct root_domain def_root_domain;
+extern struct mutex sched_domains_mutex;
+extern cpumask_var_t fallback_doms;
+extern cpumask_var_t sched_domains_tmpmask;
+
+extern void init_defrootdomain(void);
+extern int init_sched_domains(const struct cpumask *cpu_map);
+extern void rq_attach_root(struct rq *rq, struct root_domain *rd);
#endif /* CONFIG_SMP */
@@ -886,6 +893,16 @@ extern int sched_max_numa_distance;
extern bool find_numa_distance(int distance);
#endif
+#ifdef CONFIG_NUMA
+extern void sched_init_numa(void);
+extern void sched_domains_numa_masks_set(unsigned int cpu);
+extern void sched_domains_numa_masks_clear(unsigned int cpu);
+#else
+static inline void sched_init_numa(void) { }
+static inline void sched_domains_numa_masks_set(unsigned int cpu) { }
+static inline void sched_domains_numa_masks_clear(unsigned int cpu) { }
+#endif
+
#ifdef CONFIG_NUMA_BALANCING
/* The regions in numa_faults array from task_struct */
enum numa_faults_stats {
@@ -1752,6 +1769,10 @@ static inline void double_rq_unlock(struct rq *rq1, struct rq *rq2)
__release(rq2->lock);
}
+extern void set_rq_online (struct rq *rq);
+extern void set_rq_offline(struct rq *rq);
+extern bool sched_smp_initialized;
+
#else /* CONFIG_SMP */
/*
diff --git a/kernel/sched/topology.c b/kernel/sched/topology.c
new file mode 100644
index 000000000000..1b0b4fb12837
--- /dev/null
+++ b/kernel/sched/topology.c
@@ -0,0 +1,1658 @@
+/*
+ * Scheduler topology setup/handling methods
+ */
+#include <linux/sched.h>
+#include <linux/mutex.h>
+
+#include "sched.h"
+
+DEFINE_MUTEX(sched_domains_mutex);
+
+/* Protected by sched_domains_mutex: */
+cpumask_var_t sched_domains_tmpmask;
+
+#ifdef CONFIG_SCHED_DEBUG
+
+static __read_mostly int sched_debug_enabled;
+
+static int __init sched_debug_setup(char *str)
+{
+ sched_debug_enabled = 1;
+
+ return 0;
+}
+early_param("sched_debug", sched_debug_setup);
+
+static inline bool sched_debug(void)
+{
+ return sched_debug_enabled;
+}
+
+static int sched_domain_debug_one(struct sched_domain *sd, int cpu, int level,
+ struct cpumask *groupmask)
+{
+ struct sched_group *group = sd->groups;
+
+ cpumask_clear(groupmask);
+
+ printk(KERN_DEBUG "%*s domain %d: ", level, "", level);
+
+ if (!(sd->flags & SD_LOAD_BALANCE)) {
+ printk("does not load-balance\n");
+ if (sd->parent)
+ printk(KERN_ERR "ERROR: !SD_LOAD_BALANCE domain"
+ " has parent");
+ return -1;
+ }
+
+ printk(KERN_CONT "span %*pbl level %s\n",
+ cpumask_pr_args(sched_domain_span(sd)), sd->name);
+
+ if (!cpumask_test_cpu(cpu, sched_domain_span(sd))) {
+ printk(KERN_ERR "ERROR: domain->span does not contain "
+ "CPU%d\n", cpu);
+ }
+ if (!cpumask_test_cpu(cpu, sched_group_cpus(group))) {
+ printk(KERN_ERR "ERROR: domain->groups does not contain"
+ " CPU%d\n", cpu);
+ }
+
+ printk(KERN_DEBUG "%*s groups:", level + 1, "");
+ do {
+ if (!group) {
+ printk("\n");
+ printk(KERN_ERR "ERROR: group is NULL\n");
+ break;
+ }
+
+ if (!cpumask_weight(sched_group_cpus(group))) {
+ printk(KERN_CONT "\n");
+ printk(KERN_ERR "ERROR: empty group\n");
+ break;
+ }
+
+ if (!(sd->flags & SD_OVERLAP) &&
+ cpumask_intersects(groupmask, sched_group_cpus(group))) {
+ printk(KERN_CONT "\n");
+ printk(KERN_ERR "ERROR: repeated CPUs\n");
+ break;
+ }
+
+ cpumask_or(groupmask, groupmask, sched_group_cpus(group));
+
+ printk(KERN_CONT " %*pbl",
+ cpumask_pr_args(sched_group_cpus(group)));
+ if (group->sgc->capacity != SCHED_CAPACITY_SCALE) {
+ printk(KERN_CONT " (cpu_capacity = %lu)",
+ group->sgc->capacity);
+ }
+
+ group = group->next;
+ } while (group != sd->groups);
+ printk(KERN_CONT "\n");
+
+ if (!cpumask_equal(sched_domain_span(sd), groupmask))
+ printk(KERN_ERR "ERROR: groups don't span domain->span\n");
+
+ if (sd->parent &&
+ !cpumask_subset(groupmask, sched_domain_span(sd->parent)))
+ printk(KERN_ERR "ERROR: parent span is not a superset "
+ "of domain->span\n");
+ return 0;
+}
+
+static void sched_domain_debug(struct sched_domain *sd, int cpu)
+{
+ int level = 0;
+
+ if (!sched_debug_enabled)
+ return;
+
+ if (!sd) {
+ printk(KERN_DEBUG "CPU%d attaching NULL sched-domain.\n", cpu);
+ return;
+ }
+
+ printk(KERN_DEBUG "CPU%d attaching sched-domain:\n", cpu);
+
+ for (;;) {
+ if (sched_domain_debug_one(sd, cpu, level, sched_domains_tmpmask))
+ break;
+ level++;
+ sd = sd->parent;
+ if (!sd)
+ break;
+ }
+}
+#else /* !CONFIG_SCHED_DEBUG */
+
+# define sched_debug_enabled 0
+# define sched_domain_debug(sd, cpu) do { } while (0)
+static inline bool sched_debug(void)
+{
+ return false;
+}
+#endif /* CONFIG_SCHED_DEBUG */
+
+static int sd_degenerate(struct sched_domain *sd)
+{
+ if (cpumask_weight(sched_domain_span(sd)) == 1)
+ return 1;
+
+ /* Following flags need at least 2 groups */
+ if (sd->flags & (SD_LOAD_BALANCE |
+ SD_BALANCE_NEWIDLE |
+ SD_BALANCE_FORK |
+ SD_BALANCE_EXEC |
+ SD_SHARE_CPUCAPACITY |
+ SD_ASYM_CPUCAPACITY |
+ SD_SHARE_PKG_RESOURCES |
+ SD_SHARE_POWERDOMAIN)) {
+ if (sd->groups != sd->groups->next)
+ return 0;
+ }
+
+ /* Following flags don't use groups */
+ if (sd->flags & (SD_WAKE_AFFINE))
+ return 0;
+
+ return 1;
+}
+
+static int
+sd_parent_degenerate(struct sched_domain *sd, struct sched_domain *parent)
+{
+ unsigned long cflags = sd->flags, pflags = parent->flags;
+
+ if (sd_degenerate(parent))
+ return 1;
+
+ if (!cpumask_equal(sched_domain_span(sd), sched_domain_span(parent)))
+ return 0;
+
+ /* Flags needing groups don't count if only 1 group in parent */
+ if (parent->groups == parent->groups->next) {
+ pflags &= ~(SD_LOAD_BALANCE |
+ SD_BALANCE_NEWIDLE |
+ SD_BALANCE_FORK |
+ SD_BALANCE_EXEC |
+ SD_ASYM_CPUCAPACITY |
+ SD_SHARE_CPUCAPACITY |
+ SD_SHARE_PKG_RESOURCES |
+ SD_PREFER_SIBLING |
+ SD_SHARE_POWERDOMAIN);
+ if (nr_node_ids == 1)
+ pflags &= ~SD_SERIALIZE;
+ }
+ if (~cflags & pflags)
+ return 0;
+
+ return 1;
+}
+
+static void free_rootdomain(struct rcu_head *rcu)
+{
+ struct root_domain *rd = container_of(rcu, struct root_domain, rcu);
+
+ cpupri_cleanup(&rd->cpupri);
+ cpudl_cleanup(&rd->cpudl);
+ free_cpumask_var(rd->dlo_mask);
+ free_cpumask_var(rd->rto_mask);
+ free_cpumask_var(rd->online);
+ free_cpumask_var(rd->span);
+ kfree(rd);
+}
+
+void rq_attach_root(struct rq *rq, struct root_domain *rd)
+{
+ struct root_domain *old_rd = NULL;
+ unsigned long flags;
+
+ raw_spin_lock_irqsave(&rq->lock, flags);
+
+ if (rq->rd) {
+ old_rd = rq->rd;
+
+ if (cpumask_test_cpu(rq->cpu, old_rd->online))
+ set_rq_offline(rq);
+
+ cpumask_clear_cpu(rq->cpu, old_rd->span);
+
+ /*
+ * If we dont want to free the old_rd yet then
+ * set old_rd to NULL to skip the freeing later
+ * in this function:
+ */
+ if (!atomic_dec_and_test(&old_rd->refcount))
+ old_rd = NULL;
+ }
+
+ atomic_inc(&rd->refcount);
+ rq->rd = rd;
+
+ cpumask_set_cpu(rq->cpu, rd->span);
+ if (cpumask_test_cpu(rq->cpu, cpu_active_mask))
+ set_rq_online(rq);
+
+ raw_spin_unlock_irqrestore(&rq->lock, flags);
+
+ if (old_rd)
+ call_rcu_sched(&old_rd->rcu, free_rootdomain);
+}
+
+static int init_rootdomain(struct root_domain *rd)
+{
+ memset(rd, 0, sizeof(*rd));
+
+ if (!zalloc_cpumask_var(&rd->span, GFP_KERNEL))
+ goto out;
+ if (!zalloc_cpumask_var(&rd->online, GFP_KERNEL))
+ goto free_span;
+ if (!zalloc_cpumask_var(&rd->dlo_mask, GFP_KERNEL))
+ goto free_online;
+ if (!zalloc_cpumask_var(&rd->rto_mask, GFP_KERNEL))
+ goto free_dlo_mask;
+
+ init_dl_bw(&rd->dl_bw);
+ if (cpudl_init(&rd->cpudl) != 0)
+ goto free_rto_mask;
+
+ if (cpupri_init(&rd->cpupri) != 0)
+ goto free_cpudl;
+ return 0;
+
+free_cpudl:
+ cpudl_cleanup(&rd->cpudl);
+free_rto_mask:
+ free_cpumask_var(rd->rto_mask);
+free_dlo_mask:
+ free_cpumask_var(rd->dlo_mask);
+free_online:
+ free_cpumask_var(rd->online);
+free_span:
+ free_cpumask_var(rd->span);
+out:
+ return -ENOMEM;
+}
+
+/*
+ * By default the system creates a single root-domain with all CPUs as
+ * members (mimicking the global state we have today).
+ */
+struct root_domain def_root_domain;
+
+void init_defrootdomain(void)
+{
+ init_rootdomain(&def_root_domain);
+
+ atomic_set(&def_root_domain.refcount, 1);
+}
+
+static struct root_domain *alloc_rootdomain(void)
+{
+ struct root_domain *rd;
+
+ rd = kmalloc(sizeof(*rd), GFP_KERNEL);
+ if (!rd)
+ return NULL;
+
+ if (init_rootdomain(rd) != 0) {
+ kfree(rd);
+ return NULL;
+ }
+
+ return rd;
+}
+
+static void free_sched_groups(struct sched_group *sg, int free_sgc)
+{
+ struct sched_group *tmp, *first;
+
+ if (!sg)
+ return;
+
+ first = sg;
+ do {
+ tmp = sg->next;
+
+ if (free_sgc && atomic_dec_and_test(&sg->sgc->ref))
+ kfree(sg->sgc);
+
+ kfree(sg);
+ sg = tmp;
+ } while (sg != first);
+}
+
+static void destroy_sched_domain(struct sched_domain *sd)
+{
+ /*
+ * If its an overlapping domain it has private groups, iterate and
+ * nuke them all.
+ */
+ if (sd->flags & SD_OVERLAP) {
+ free_sched_groups(sd->groups, 1);
+ } else if (atomic_dec_and_test(&sd->groups->ref)) {
+ kfree(sd->groups->sgc);
+ kfree(sd->groups);
+ }
+ if (sd->shared && atomic_dec_and_test(&sd->shared->ref))
+ kfree(sd->shared);
+ kfree(sd);
+}
+
+static void destroy_sched_domains_rcu(struct rcu_head *rcu)
+{
+ struct sched_domain *sd = container_of(rcu, struct sched_domain, rcu);
+
+ while (sd) {
+ struct sched_domain *parent = sd->parent;
+ destroy_sched_domain(sd);
+ sd = parent;
+ }
+}
+
+static void destroy_sched_domains(struct sched_domain *sd)
+{
+ if (sd)
+ call_rcu(&sd->rcu, destroy_sched_domains_rcu);
+}
+
+/*
+ * Keep a special pointer to the highest sched_domain that has
+ * SD_SHARE_PKG_RESOURCE set (Last Level Cache Domain) for this
+ * allows us to avoid some pointer chasing select_idle_sibling().
+ *
+ * Also keep a unique ID per domain (we use the first CPU number in
+ * the cpumask of the domain), this allows us to quickly tell if
+ * two CPUs are in the same cache domain, see cpus_share_cache().
+ */
+DEFINE_PER_CPU(struct sched_domain *, sd_llc);
+DEFINE_PER_CPU(int, sd_llc_size);
+DEFINE_PER_CPU(int, sd_llc_id);
+DEFINE_PER_CPU(struct sched_domain_shared *, sd_llc_shared);
+DEFINE_PER_CPU(struct sched_domain *, sd_numa);
+DEFINE_PER_CPU(struct sched_domain *, sd_asym);
+
+static void update_top_cache_domain(int cpu)
+{
+ struct sched_domain_shared *sds = NULL;
+ struct sched_domain *sd;
+ int id = cpu;
+ int size = 1;
+
+ sd = highest_flag_domain(cpu, SD_SHARE_PKG_RESOURCES);
+ if (sd) {
+ id = cpumask_first(sched_domain_span(sd));
+ size = cpumask_weight(sched_domain_span(sd));
+ sds = sd->shared;
+ }
+
+ rcu_assign_pointer(per_cpu(sd_llc, cpu), sd);
+ per_cpu(sd_llc_size, cpu) = size;
+ per_cpu(sd_llc_id, cpu) = id;
+ rcu_assign_pointer(per_cpu(sd_llc_shared, cpu), sds);
+
+ sd = lowest_flag_domain(cpu, SD_NUMA);
+ rcu_assign_pointer(per_cpu(sd_numa, cpu), sd);
+
+ sd = highest_flag_domain(cpu, SD_ASYM_PACKING);
+ rcu_assign_pointer(per_cpu(sd_asym, cpu), sd);
+}
+
+/*
+ * Attach the domain 'sd' to 'cpu' as its base domain. Callers must
+ * hold the hotplug lock.
+ */
+static void
+cpu_attach_domain(struct sched_domain *sd, struct root_domain *rd, int cpu)
+{
+ struct rq *rq = cpu_rq(cpu);
+ struct sched_domain *tmp;
+
+ /* Remove the sched domains which do not contribute to scheduling. */
+ for (tmp = sd; tmp; ) {
+ struct sched_domain *parent = tmp->parent;
+ if (!parent)
+ break;
+
+ if (sd_parent_degenerate(tmp, parent)) {
+ tmp->parent = parent->parent;
+ if (parent->parent)
+ parent->parent->child = tmp;
+ /*
+ * Transfer SD_PREFER_SIBLING down in case of a
+ * degenerate parent; the spans match for this
+ * so the property transfers.
+ */
+ if (parent->flags & SD_PREFER_SIBLING)
+ tmp->flags |= SD_PREFER_SIBLING;
+ destroy_sched_domain(parent);
+ } else
+ tmp = tmp->parent;
+ }
+
+ if (sd && sd_degenerate(sd)) {
+ tmp = sd;
+ sd = sd->parent;
+ destroy_sched_domain(tmp);
+ if (sd)
+ sd->child = NULL;
+ }
+
+ sched_domain_debug(sd, cpu);
+
+ rq_attach_root(rq, rd);
+ tmp = rq->sd;
+ rcu_assign_pointer(rq->sd, sd);
+ destroy_sched_domains(tmp);
+
+ update_top_cache_domain(cpu);
+}
+
+/* Setup the mask of CPUs configured for isolated domains */
+static int __init isolated_cpu_setup(char *str)
+{
+ int ret;
+
+ alloc_bootmem_cpumask_var(&cpu_isolated_map);
+ ret = cpulist_parse(str, cpu_isolated_map);
+ if (ret) {
+ pr_err("sched: Error, all isolcpus= values must be between 0 and %d\n", nr_cpu_ids);
+ return 0;
+ }
+ return 1;
+}
+__setup("isolcpus=", isolated_cpu_setup);
+
+struct s_data {
+ struct sched_domain ** __percpu sd;
+ struct root_domain *rd;
+};
+
+enum s_alloc {
+ sa_rootdomain,
+ sa_sd,
+ sa_sd_storage,
+ sa_none,
+};
+
+/*
+ * Build an iteration mask that can exclude certain CPUs from the upwards
+ * domain traversal.
+ *
+ * Asymmetric node setups can result in situations where the domain tree is of
+ * unequal depth, make sure to skip domains that already cover the entire
+ * range.
+ *
+ * In that case build_sched_domains() will have terminated the iteration early
+ * and our sibling sd spans will be empty. Domains should always include the
+ * CPU they're built on, so check that.
+ */
+static void build_group_mask(struct sched_domain *sd, struct sched_group *sg)
+{
+ const struct cpumask *span = sched_domain_span(sd);
+ struct sd_data *sdd = sd->private;
+ struct sched_domain *sibling;
+ int i;
+
+ for_each_cpu(i, span) {
+ sibling = *per_cpu_ptr(sdd->sd, i);
+ if (!cpumask_test_cpu(i, sched_domain_span(sibling)))
+ continue;
+
+ cpumask_set_cpu(i, sched_group_mask(sg));
+ }
+}
+
+/*
+ * Return the canonical balance CPU for this group, this is the first CPU
+ * of this group that's also in the iteration mask.
+ */
+int group_balance_cpu(struct sched_group *sg)
+{
+ return cpumask_first_and(sched_group_cpus(sg), sched_group_mask(sg));
+}
+
+static int
+build_overlap_sched_groups(struct sched_domain *sd, int cpu)
+{
+ struct sched_group *first = NULL, *last = NULL, *groups = NULL, *sg;
+ const struct cpumask *span = sched_domain_span(sd);
+ struct cpumask *covered = sched_domains_tmpmask;
+ struct sd_data *sdd = sd->private;
+ struct sched_domain *sibling;
+ int i;
+
+ cpumask_clear(covered);
+
+ for_each_cpu(i, span) {
+ struct cpumask *sg_span;
+
+ if (cpumask_test_cpu(i, covered))
+ continue;
+
+ sibling = *per_cpu_ptr(sdd->sd, i);
+
+ /* See the comment near build_group_mask(). */
+ if (!cpumask_test_cpu(i, sched_domain_span(sibling)))
+ continue;
+
+ sg = kzalloc_node(sizeof(struct sched_group) + cpumask_size(),
+ GFP_KERNEL, cpu_to_node(cpu));
+
+ if (!sg)
+ goto fail;
+
+ sg_span = sched_group_cpus(sg);
+ if (sibling->child)
+ cpumask_copy(sg_span, sched_domain_span(sibling->child));
+ else
+ cpumask_set_cpu(i, sg_span);
+
+ cpumask_or(covered, covered, sg_span);
+
+ sg->sgc = *per_cpu_ptr(sdd->sgc, i);
+ if (atomic_inc_return(&sg->sgc->ref) == 1)
+ build_group_mask(sd, sg);
+
+ /*
+ * Initialize sgc->capacity such that even if we mess up the
+ * domains and no possible iteration will get us here, we won't
+ * die on a /0 trap.
+ */
+ sg->sgc->capacity = SCHED_CAPACITY_SCALE * cpumask_weight(sg_span);
+ sg->sgc->min_capacity = SCHED_CAPACITY_SCALE;
+
+ /*
+ * Make sure the first group of this domain contains the
+ * canonical balance CPU. Otherwise the sched_domain iteration
+ * breaks. See update_sg_lb_stats().
+ */
+ if ((!groups && cpumask_test_cpu(cpu, sg_span)) ||
+ group_balance_cpu(sg) == cpu)
+ groups = sg;
+
+ if (!first)
+ first = sg;
+ if (last)
+ last->next = sg;
+ last = sg;
+ last->next = first;
+ }
+ sd->groups = groups;
+
+ return 0;
+
+fail:
+ free_sched_groups(first, 0);
+
+ return -ENOMEM;
+}
+
+static int get_group(int cpu, struct sd_data *sdd, struct sched_group **sg)
+{
+ struct sched_domain *sd = *per_cpu_ptr(sdd->sd, cpu);
+ struct sched_domain *child = sd->child;
+
+ if (child)
+ cpu = cpumask_first(sched_domain_span(child));
+
+ if (sg) {
+ *sg = *per_cpu_ptr(sdd->sg, cpu);
+ (*sg)->sgc = *per_cpu_ptr(sdd->sgc, cpu);
+
+ /* For claim_allocations: */
+ atomic_set(&(*sg)->sgc->ref, 1);
+ }
+
+ return cpu;
+}
+
+/*
+ * build_sched_groups will build a circular linked list of the groups
+ * covered by the given span, and will set each group's ->cpumask correctly,
+ * and ->cpu_capacity to 0.
+ *
+ * Assumes the sched_domain tree is fully constructed
+ */
+static int
+build_sched_groups(struct sched_domain *sd, int cpu)
+{
+ struct sched_group *first = NULL, *last = NULL;
+ struct sd_data *sdd = sd->private;
+ const struct cpumask *span = sched_domain_span(sd);
+ struct cpumask *covered;
+ int i;
+
+ get_group(cpu, sdd, &sd->groups);
+ atomic_inc(&sd->groups->ref);
+
+ if (cpu != cpumask_first(span))
+ return 0;
+
+ lockdep_assert_held(&sched_domains_mutex);
+ covered = sched_domains_tmpmask;
+
+ cpumask_clear(covered);
+
+ for_each_cpu(i, span) {
+ struct sched_group *sg;
+ int group, j;
+
+ if (cpumask_test_cpu(i, covered))
+ continue;
+
+ group = get_group(i, sdd, &sg);
+ cpumask_setall(sched_group_mask(sg));
+
+ for_each_cpu(j, span) {
+ if (get_group(j, sdd, NULL) != group)
+ continue;
+
+ cpumask_set_cpu(j, covered);
+ cpumask_set_cpu(j, sched_group_cpus(sg));
+ }
+
+ if (!first)
+ first = sg;
+ if (last)
+ last->next = sg;
+ last = sg;
+ }
+ last->next = first;
+
+ return 0;
+}
+
+/*
+ * Initialize sched groups cpu_capacity.
+ *
+ * cpu_capacity indicates the capacity of sched group, which is used while
+ * distributing the load between different sched groups in a sched domain.
+ * Typically cpu_capacity for all the groups in a sched domain will be same
+ * unless there are asymmetries in the topology. If there are asymmetries,
+ * group having more cpu_capacity will pickup more load compared to the
+ * group having less cpu_capacity.
+ */
+static void init_sched_groups_capacity(int cpu, struct sched_domain *sd)
+{
+ struct sched_group *sg = sd->groups;
+
+ WARN_ON(!sg);
+
+ do {
+ int cpu, max_cpu = -1;
+
+ sg->group_weight = cpumask_weight(sched_group_cpus(sg));
+
+ if (!(sd->flags & SD_ASYM_PACKING))
+ goto next;
+
+ for_each_cpu(cpu, sched_group_cpus(sg)) {
+ if (max_cpu < 0)
+ max_cpu = cpu;
+ else if (sched_asym_prefer(cpu, max_cpu))
+ max_cpu = cpu;
+ }
+ sg->asym_prefer_cpu = max_cpu;
+
+next:
+ sg = sg->next;
+ } while (sg != sd->groups);
+
+ if (cpu != group_balance_cpu(sg))
+ return;
+
+ update_group_capacity(sd, cpu);
+}
+
+/*
+ * Initializers for schedule domains
+ * Non-inlined to reduce accumulated stack pressure in build_sched_domains()
+ */
+
+static int default_relax_domain_level = -1;
+int sched_domain_level_max;
+
+static int __init setup_relax_domain_level(char *str)
+{
+ if (kstrtoint(str, 0, &default_relax_domain_level))
+ pr_warn("Unable to set relax_domain_level\n");
+
+ return 1;
+}
+__setup("relax_domain_level=", setup_relax_domain_level);
+
+static void set_domain_attribute(struct sched_domain *sd,
+ struct sched_domain_attr *attr)
+{
+ int request;
+
+ if (!attr || attr->relax_domain_level < 0) {
+ if (default_relax_domain_level < 0)
+ return;
+ else
+ request = default_relax_domain_level;
+ } else
+ request = attr->relax_domain_level;
+ if (request < sd->level) {
+ /* Turn off idle balance on this domain: */
+ sd->flags &= ~(SD_BALANCE_WAKE|SD_BALANCE_NEWIDLE);
+ } else {
+ /* Turn on idle balance on this domain: */
+ sd->flags |= (SD_BALANCE_WAKE|SD_BALANCE_NEWIDLE);
+ }
+}
+
+static void __sdt_free(const struct cpumask *cpu_map);
+static int __sdt_alloc(const struct cpumask *cpu_map);
+
+static void __free_domain_allocs(struct s_data *d, enum s_alloc what,
+ const struct cpumask *cpu_map)
+{
+ switch (what) {
+ case sa_rootdomain:
+ if (!atomic_read(&d->rd->refcount))
+ free_rootdomain(&d->rd->rcu);
+ /* Fall through */
+ case sa_sd:
+ free_percpu(d->sd);
+ /* Fall through */
+ case sa_sd_storage:
+ __sdt_free(cpu_map);
+ /* Fall through */
+ case sa_none:
+ break;
+ }
+}
+
+static enum s_alloc
+__visit_domain_allocation_hell(struct s_data *d, const struct cpumask *cpu_map)
+{
+ memset(d, 0, sizeof(*d));
+
+ if (__sdt_alloc(cpu_map))
+ return sa_sd_storage;
+ d->sd = alloc_percpu(struct sched_domain *);
+ if (!d->sd)
+ return sa_sd_storage;
+ d->rd = alloc_rootdomain();
+ if (!d->rd)
+ return sa_sd;
+ return sa_rootdomain;
+}
+
+/*
+ * NULL the sd_data elements we've used to build the sched_domain and
+ * sched_group structure so that the subsequent __free_domain_allocs()
+ * will not free the data we're using.
+ */
+static void claim_allocations(int cpu, struct sched_domain *sd)
+{
+ struct sd_data *sdd = sd->private;
+
+ WARN_ON_ONCE(*per_cpu_ptr(sdd->sd, cpu) != sd);
+ *per_cpu_ptr(sdd->sd, cpu) = NULL;
+
+ if (atomic_read(&(*per_cpu_ptr(sdd->sds, cpu))->ref))
+ *per_cpu_ptr(sdd->sds, cpu) = NULL;
+
+ if (atomic_read(&(*per_cpu_ptr(sdd->sg, cpu))->ref))
+ *per_cpu_ptr(sdd->sg, cpu) = NULL;
+
+ if (atomic_read(&(*per_cpu_ptr(sdd->sgc, cpu))->ref))
+ *per_cpu_ptr(sdd->sgc, cpu) = NULL;
+}
+
+#ifdef CONFIG_NUMA
+static int sched_domains_numa_levels;
+enum numa_topology_type sched_numa_topology_type;
+static int *sched_domains_numa_distance;
+int sched_max_numa_distance;
+static struct cpumask ***sched_domains_numa_masks;
+static int sched_domains_curr_level;
+#endif
+
+/*
+ * SD_flags allowed in topology descriptions.
+ *
+ * These flags are purely descriptive of the topology and do not prescribe
+ * behaviour. Behaviour is artificial and mapped in the below sd_init()
+ * function:
+ *
+ * SD_SHARE_CPUCAPACITY - describes SMT topologies
+ * SD_SHARE_PKG_RESOURCES - describes shared caches
+ * SD_NUMA - describes NUMA topologies
+ * SD_SHARE_POWERDOMAIN - describes shared power domain
+ * SD_ASYM_CPUCAPACITY - describes mixed capacity topologies
+ *
+ * Odd one out, which beside describing the topology has a quirk also
+ * prescribes the desired behaviour that goes along with it:
+ *
+ * SD_ASYM_PACKING - describes SMT quirks
+ */
+#define TOPOLOGY_SD_FLAGS \
+ (SD_SHARE_CPUCAPACITY | \
+ SD_SHARE_PKG_RESOURCES | \
+ SD_NUMA | \
+ SD_ASYM_PACKING | \
+ SD_ASYM_CPUCAPACITY | \
+ SD_SHARE_POWERDOMAIN)
+
+static struct sched_domain *
+sd_init(struct sched_domain_topology_level *tl,
+ const struct cpumask *cpu_map,
+ struct sched_domain *child, int cpu)
+{
+ struct sd_data *sdd = &tl->data;
+ struct sched_domain *sd = *per_cpu_ptr(sdd->sd, cpu);
+ int sd_id, sd_weight, sd_flags = 0;
+
+#ifdef CONFIG_NUMA
+ /*
+ * Ugly hack to pass state to sd_numa_mask()...
+ */
+ sched_domains_curr_level = tl->numa_level;
+#endif
+
+ sd_weight = cpumask_weight(tl->mask(cpu));
+
+ if (tl->sd_flags)
+ sd_flags = (*tl->sd_flags)();
+ if (WARN_ONCE(sd_flags & ~TOPOLOGY_SD_FLAGS,
+ "wrong sd_flags in topology description\n"))
+ sd_flags &= ~TOPOLOGY_SD_FLAGS;
+
+ *sd = (struct sched_domain){
+ .min_interval = sd_weight,
+ .max_interval = 2*sd_weight,
+ .busy_factor = 32,
+ .imbalance_pct = 125,
+
+ .cache_nice_tries = 0,
+ .busy_idx = 0,
+ .idle_idx = 0,
+ .newidle_idx = 0,
+ .wake_idx = 0,
+ .forkexec_idx = 0,
+
+ .flags = 1*SD_LOAD_BALANCE
+ | 1*SD_BALANCE_NEWIDLE
+ | 1*SD_BALANCE_EXEC
+ | 1*SD_BALANCE_FORK
+ | 0*SD_BALANCE_WAKE
+ | 1*SD_WAKE_AFFINE
+ | 0*SD_SHARE_CPUCAPACITY
+ | 0*SD_SHARE_PKG_RESOURCES
+ | 0*SD_SERIALIZE
+ | 0*SD_PREFER_SIBLING
+ | 0*SD_NUMA
+ | sd_flags
+ ,
+
+ .last_balance = jiffies,
+ .balance_interval = sd_weight,
+ .smt_gain = 0,
+ .max_newidle_lb_cost = 0,
+ .next_decay_max_lb_cost = jiffies,
+ .child = child,
+#ifdef CONFIG_SCHED_DEBUG
+ .name = tl->name,
+#endif
+ };
+
+ cpumask_and(sched_domain_span(sd), cpu_map, tl->mask(cpu));
+ sd_id = cpumask_first(sched_domain_span(sd));
+
+ /*
+ * Convert topological properties into behaviour.
+ */
+
+ if (sd->flags & SD_ASYM_CPUCAPACITY) {
+ struct sched_domain *t = sd;
+
+ for_each_lower_domain(t)
+ t->flags |= SD_BALANCE_WAKE;
+ }
+
+ if (sd->flags & SD_SHARE_CPUCAPACITY) {
+ sd->flags |= SD_PREFER_SIBLING;
+ sd->imbalance_pct = 110;
+ sd->smt_gain = 1178; /* ~15% */
+
+ } else if (sd->flags & SD_SHARE_PKG_RESOURCES) {
+ sd->imbalance_pct = 117;
+ sd->cache_nice_tries = 1;
+ sd->busy_idx = 2;
+
+#ifdef CONFIG_NUMA
+ } else if (sd->flags & SD_NUMA) {
+ sd->cache_nice_tries = 2;
+ sd->busy_idx = 3;
+ sd->idle_idx = 2;
+
+ sd->flags |= SD_SERIALIZE;
+ if (sched_domains_numa_distance[tl->numa_level] > RECLAIM_DISTANCE) {
+ sd->flags &= ~(SD_BALANCE_EXEC |
+ SD_BALANCE_FORK |
+ SD_WAKE_AFFINE);
+ }
+
+#endif
+ } else {
+ sd->flags |= SD_PREFER_SIBLING;
+ sd->cache_nice_tries = 1;
+ sd->busy_idx = 2;
+ sd->idle_idx = 1;
+ }
+
+ /*
+ * For all levels sharing cache; connect a sched_domain_shared
+ * instance.
+ */
+ if (sd->flags & SD_SHARE_PKG_RESOURCES) {
+ sd->shared = *per_cpu_ptr(sdd->sds, sd_id);
+ atomic_inc(&sd->shared->ref);
+ atomic_set(&sd->shared->nr_busy_cpus, sd_weight);
+ }
+
+ sd->private = sdd;
+
+ return sd;
+}
+
+/*
+ * Topology list, bottom-up.
+ */
+static struct sched_domain_topology_level default_topology[] = {
+#ifdef CONFIG_SCHED_SMT
+ { cpu_smt_mask, cpu_smt_flags, SD_INIT_NAME(SMT) },
+#endif
+#ifdef CONFIG_SCHED_MC
+ { cpu_coregroup_mask, cpu_core_flags, SD_INIT_NAME(MC) },
+#endif
+ { cpu_cpu_mask, SD_INIT_NAME(DIE) },
+ { NULL, },
+};
+
+static struct sched_domain_topology_level *sched_domain_topology =
+ default_topology;
+
+#define for_each_sd_topology(tl) \
+ for (tl = sched_domain_topology; tl->mask; tl++)
+
+void set_sched_topology(struct sched_domain_topology_level *tl)
+{
+ if (WARN_ON_ONCE(sched_smp_initialized))
+ return;
+
+ sched_domain_topology = tl;
+}
+
+#ifdef CONFIG_NUMA
+
+static const struct cpumask *sd_numa_mask(int cpu)
+{
+ return sched_domains_numa_masks[sched_domains_curr_level][cpu_to_node(cpu)];
+}
+
+static void sched_numa_warn(const char *str)
+{
+ static int done = false;
+ int i,j;
+
+ if (done)
+ return;
+
+ done = true;
+
+ printk(KERN_WARNING "ERROR: %s\n\n", str);
+
+ for (i = 0; i < nr_node_ids; i++) {
+ printk(KERN_WARNING " ");
+ for (j = 0; j < nr_node_ids; j++)
+ printk(KERN_CONT "%02d ", node_distance(i,j));
+ printk(KERN_CONT "\n");
+ }
+ printk(KERN_WARNING "\n");
+}
+
+bool find_numa_distance(int distance)
+{
+ int i;
+
+ if (distance == node_distance(0, 0))
+ return true;
+
+ for (i = 0; i < sched_domains_numa_levels; i++) {
+ if (sched_domains_numa_distance[i] == distance)
+ return true;
+ }
+
+ return false;
+}
+
+/*
+ * A system can have three types of NUMA topology:
+ * NUMA_DIRECT: all nodes are directly connected, or not a NUMA system
+ * NUMA_GLUELESS_MESH: some nodes reachable through intermediary nodes
+ * NUMA_BACKPLANE: nodes can reach other nodes through a backplane
+ *
+ * The difference between a glueless mesh topology and a backplane
+ * topology lies in whether communication between not directly
+ * connected nodes goes through intermediary nodes (where programs
+ * could run), or through backplane controllers. This affects
+ * placement of programs.
+ *
+ * The type of topology can be discerned with the following tests:
+ * - If the maximum distance between any nodes is 1 hop, the system
+ * is directly connected.
+ * - If for two nodes A and B, located N > 1 hops away from each other,
+ * there is an intermediary node C, which is < N hops away from both
+ * nodes A and B, the system is a glueless mesh.
+ */
+static void init_numa_topology_type(void)
+{
+ int a, b, c, n;
+
+ n = sched_max_numa_distance;
+
+ if (sched_domains_numa_levels <= 1) {
+ sched_numa_topology_type = NUMA_DIRECT;
+ return;
+ }
+
+ for_each_online_node(a) {
+ for_each_online_node(b) {
+ /* Find two nodes furthest removed from each other. */
+ if (node_distance(a, b) < n)
+ continue;
+
+ /* Is there an intermediary node between a and b? */
+ for_each_online_node(c) {
+ if (node_distance(a, c) < n &&
+ node_distance(b, c) < n) {
+ sched_numa_topology_type =
+ NUMA_GLUELESS_MESH;
+ return;
+ }
+ }
+
+ sched_numa_topology_type = NUMA_BACKPLANE;
+ return;
+ }
+ }
+}
+
+void sched_init_numa(void)
+{
+ int next_distance, curr_distance = node_distance(0, 0);
+ struct sched_domain_topology_level *tl;
+ int level = 0;
+ int i, j, k;
+
+ sched_domains_numa_distance = kzalloc(sizeof(int) * nr_node_ids, GFP_KERNEL);
+ if (!sched_domains_numa_distance)
+ return;
+
+ /*
+ * O(nr_nodes^2) deduplicating selection sort -- in order to find the
+ * unique distances in the node_distance() table.
+ *
+ * Assumes node_distance(0,j) includes all distances in
+ * node_distance(i,j) in order to avoid cubic time.
+ */
+ next_distance = curr_distance;
+ for (i = 0; i < nr_node_ids; i++) {
+ for (j = 0; j < nr_node_ids; j++) {
+ for (k = 0; k < nr_node_ids; k++) {
+ int distance = node_distance(i, k);
+
+ if (distance > curr_distance &&
+ (distance < next_distance ||
+ next_distance == curr_distance))
+ next_distance = distance;
+
+ /*
+ * While not a strong assumption it would be nice to know
+ * about cases where if node A is connected to B, B is not
+ * equally connected to A.
+ */
+ if (sched_debug() && node_distance(k, i) != distance)
+ sched_numa_warn("Node-distance not symmetric");
+
+ if (sched_debug() && i && !find_numa_distance(distance))
+ sched_numa_warn("Node-0 not representative");
+ }
+ if (next_distance != curr_distance) {
+ sched_domains_numa_distance[level++] = next_distance;
+ sched_domains_numa_levels = level;
+ curr_distance = next_distance;
+ } else break;
+ }
+
+ /*
+ * In case of sched_debug() we verify the above assumption.
+ */
+ if (!sched_debug())
+ break;
+ }
+
+ if (!level)
+ return;
+
+ /*
+ * 'level' contains the number of unique distances, excluding the
+ * identity distance node_distance(i,i).
+ *
+ * The sched_domains_numa_distance[] array includes the actual distance
+ * numbers.
+ */
+
+ /*
+ * Here, we should temporarily reset sched_domains_numa_levels to 0.
+ * If it fails to allocate memory for array sched_domains_numa_masks[][],
+ * the array will contain less then 'level' members. This could be
+ * dangerous when we use it to iterate array sched_domains_numa_masks[][]
+ * in other functions.
+ *
+ * We reset it to 'level' at the end of this function.
+ */
+ sched_domains_numa_levels = 0;
+
+ sched_domains_numa_masks = kzalloc(sizeof(void *) * level, GFP_KERNEL);
+ if (!sched_domains_numa_masks)
+ return;
+
+ /*
+ * Now for each level, construct a mask per node which contains all
+ * CPUs of nodes that are that many hops away from us.
+ */
+ for (i = 0; i < level; i++) {
+ sched_domains_numa_masks[i] =
+ kzalloc(nr_node_ids * sizeof(void *), GFP_KERNEL);
+ if (!sched_domains_numa_masks[i])
+ return;
+
+ for (j = 0; j < nr_node_ids; j++) {
+ struct cpumask *mask = kzalloc(cpumask_size(), GFP_KERNEL);
+ if (!mask)
+ return;
+
+ sched_domains_numa_masks[i][j] = mask;
+
+ for_each_node(k) {
+ if (node_distance(j, k) > sched_domains_numa_distance[i])
+ continue;
+
+ cpumask_or(mask, mask, cpumask_of_node(k));
+ }
+ }
+ }
+
+ /* Compute default topology size */
+ for (i = 0; sched_domain_topology[i].mask; i++);
+
+ tl = kzalloc((i + level + 1) *
+ sizeof(struct sched_domain_topology_level), GFP_KERNEL);
+ if (!tl)
+ return;
+
+ /*
+ * Copy the default topology bits..
+ */
+ for (i = 0; sched_domain_topology[i].mask; i++)
+ tl[i] = sched_domain_topology[i];
+
+ /*
+ * .. and append 'j' levels of NUMA goodness.
+ */
+ for (j = 0; j < level; i++, j++) {
+ tl[i] = (struct sched_domain_topology_level){
+ .mask = sd_numa_mask,
+ .sd_flags = cpu_numa_flags,
+ .flags = SDTL_OVERLAP,
+ .numa_level = j,
+ SD_INIT_NAME(NUMA)
+ };
+ }
+
+ sched_domain_topology = tl;
+
+ sched_domains_numa_levels = level;
+ sched_max_numa_distance = sched_domains_numa_distance[level - 1];
+
+ init_numa_topology_type();
+}
+
+void sched_domains_numa_masks_set(unsigned int cpu)
+{
+ int node = cpu_to_node(cpu);
+ int i, j;
+
+ for (i = 0; i < sched_domains_numa_levels; i++) {
+ for (j = 0; j < nr_node_ids; j++) {
+ if (node_distance(j, node) <= sched_domains_numa_distance[i])
+ cpumask_set_cpu(cpu, sched_domains_numa_masks[i][j]);
+ }
+ }
+}
+
+void sched_domains_numa_masks_clear(unsigned int cpu)
+{
+ int i, j;
+
+ for (i = 0; i < sched_domains_numa_levels; i++) {
+ for (j = 0; j < nr_node_ids; j++)
+ cpumask_clear_cpu(cpu, sched_domains_numa_masks[i][j]);
+ }
+}
+
+#endif /* CONFIG_NUMA */
+
+static int __sdt_alloc(const struct cpumask *cpu_map)
+{
+ struct sched_domain_topology_level *tl;
+ int j;
+
+ for_each_sd_topology(tl) {
+ struct sd_data *sdd = &tl->data;
+
+ sdd->sd = alloc_percpu(struct sched_domain *);
+ if (!sdd->sd)
+ return -ENOMEM;
+
+ sdd->sds = alloc_percpu(struct sched_domain_shared *);
+ if (!sdd->sds)
+ return -ENOMEM;
+
+ sdd->sg = alloc_percpu(struct sched_group *);
+ if (!sdd->sg)
+ return -ENOMEM;
+
+ sdd->sgc = alloc_percpu(struct sched_group_capacity *);
+ if (!sdd->sgc)
+ return -ENOMEM;
+
+ for_each_cpu(j, cpu_map) {
+ struct sched_domain *sd;
+ struct sched_domain_shared *sds;
+ struct sched_group *sg;
+ struct sched_group_capacity *sgc;
+
+ sd = kzalloc_node(sizeof(struct sched_domain) + cpumask_size(),
+ GFP_KERNEL, cpu_to_node(j));
+ if (!sd)
+ return -ENOMEM;
+
+ *per_cpu_ptr(sdd->sd, j) = sd;
+
+ sds = kzalloc_node(sizeof(struct sched_domain_shared),
+ GFP_KERNEL, cpu_to_node(j));
+ if (!sds)
+ return -ENOMEM;
+
+ *per_cpu_ptr(sdd->sds, j) = sds;
+
+ sg = kzalloc_node(sizeof(struct sched_group) + cpumask_size(),
+ GFP_KERNEL, cpu_to_node(j));
+ if (!sg)
+ return -ENOMEM;
+
+ sg->next = sg;
+
+ *per_cpu_ptr(sdd->sg, j) = sg;
+
+ sgc = kzalloc_node(sizeof(struct sched_group_capacity) + cpumask_size(),
+ GFP_KERNEL, cpu_to_node(j));
+ if (!sgc)
+ return -ENOMEM;
+
+ *per_cpu_ptr(sdd->sgc, j) = sgc;
+ }
+ }
+
+ return 0;
+}
+
+static void __sdt_free(const struct cpumask *cpu_map)
+{
+ struct sched_domain_topology_level *tl;
+ int j;
+
+ for_each_sd_topology(tl) {
+ struct sd_data *sdd = &tl->data;
+
+ for_each_cpu(j, cpu_map) {
+ struct sched_domain *sd;
+
+ if (sdd->sd) {
+ sd = *per_cpu_ptr(sdd->sd, j);
+ if (sd && (sd->flags & SD_OVERLAP))
+ free_sched_groups(sd->groups, 0);
+ kfree(*per_cpu_ptr(sdd->sd, j));
+ }
+
+ if (sdd->sds)
+ kfree(*per_cpu_ptr(sdd->sds, j));
+ if (sdd->sg)
+ kfree(*per_cpu_ptr(sdd->sg, j));
+ if (sdd->sgc)
+ kfree(*per_cpu_ptr(sdd->sgc, j));
+ }
+ free_percpu(sdd->sd);
+ sdd->sd = NULL;
+ free_percpu(sdd->sds);
+ sdd->sds = NULL;
+ free_percpu(sdd->sg);
+ sdd->sg = NULL;
+ free_percpu(sdd->sgc);
+ sdd->sgc = NULL;
+ }
+}
+
+struct sched_domain *build_sched_domain(struct sched_domain_topology_level *tl,
+ const struct cpumask *cpu_map, struct sched_domain_attr *attr,
+ struct sched_domain *child, int cpu)
+{
+ struct sched_domain *sd = sd_init(tl, cpu_map, child, cpu);
+
+ if (child) {
+ sd->level = child->level + 1;
+ sched_domain_level_max = max(sched_domain_level_max, sd->level);
+ child->parent = sd;
+
+ if (!cpumask_subset(sched_domain_span(child),
+ sched_domain_span(sd))) {
+ pr_err("BUG: arch topology borken\n");
+#ifdef CONFIG_SCHED_DEBUG
+ pr_err(" the %s domain not a subset of the %s domain\n",
+ child->name, sd->name);
+#endif
+ /* Fixup, ensure @sd has at least @child cpus. */
+ cpumask_or(sched_domain_span(sd),
+ sched_domain_span(sd),
+ sched_domain_span(child));
+ }
+
+ }
+ set_domain_attribute(sd, attr);
+
+ return sd;
+}
+
+/*
+ * Build sched domains for a given set of CPUs and attach the sched domains
+ * to the individual CPUs
+ */
+static int
+build_sched_domains(const struct cpumask *cpu_map, struct sched_domain_attr *attr)
+{
+ enum s_alloc alloc_state;
+ struct sched_domain *sd;
+ struct s_data d;
+ struct rq *rq = NULL;
+ int i, ret = -ENOMEM;
+
+ alloc_state = __visit_domain_allocation_hell(&d, cpu_map);
+ if (alloc_state != sa_rootdomain)
+ goto error;
+
+ /* Set up domains for CPUs specified by the cpu_map: */
+ for_each_cpu(i, cpu_map) {
+ struct sched_domain_topology_level *tl;
+
+ sd = NULL;
+ for_each_sd_topology(tl) {
+ sd = build_sched_domain(tl, cpu_map, attr, sd, i);
+ if (tl == sched_domain_topology)
+ *per_cpu_ptr(d.sd, i) = sd;
+ if (tl->flags & SDTL_OVERLAP || sched_feat(FORCE_SD_OVERLAP))
+ sd->flags |= SD_OVERLAP;
+ if (cpumask_equal(cpu_map, sched_domain_span(sd)))
+ break;
+ }
+ }
+
+ /* Build the groups for the domains */
+ for_each_cpu(i, cpu_map) {
+ for (sd = *per_cpu_ptr(d.sd, i); sd; sd = sd->parent) {
+ sd->span_weight = cpumask_weight(sched_domain_span(sd));
+ if (sd->flags & SD_OVERLAP) {
+ if (build_overlap_sched_groups(sd, i))
+ goto error;
+ } else {
+ if (build_sched_groups(sd, i))
+ goto error;
+ }
+ }
+ }
+
+ /* Calculate CPU capacity for physical packages and nodes */
+ for (i = nr_cpumask_bits-1; i >= 0; i--) {
+ if (!cpumask_test_cpu(i, cpu_map))
+ continue;
+
+ for (sd = *per_cpu_ptr(d.sd, i); sd; sd = sd->parent) {
+ claim_allocations(i, sd);
+ init_sched_groups_capacity(i, sd);
+ }
+ }
+
+ /* Attach the domains */
+ rcu_read_lock();
+ for_each_cpu(i, cpu_map) {
+ rq = cpu_rq(i);
+ sd = *per_cpu_ptr(d.sd, i);
+
+ /* Use READ_ONCE()/WRITE_ONCE() to avoid load/store tearing: */
+ if (rq->cpu_capacity_orig > READ_ONCE(d.rd->max_cpu_capacity))
+ WRITE_ONCE(d.rd->max_cpu_capacity, rq->cpu_capacity_orig);
+
+ cpu_attach_domain(sd, d.rd, i);
+ }
+ rcu_read_unlock();
+
+ if (rq && sched_debug_enabled) {
+ pr_info("span: %*pbl (max cpu_capacity = %lu)\n",
+ cpumask_pr_args(cpu_map), rq->rd->max_cpu_capacity);
+ }
+
+ ret = 0;
+error:
+ __free_domain_allocs(&d, alloc_state, cpu_map);
+ return ret;
+}
+
+/* Current sched domains: */
+static cpumask_var_t *doms_cur;
+
+/* Number of sched domains in 'doms_cur': */
+static int ndoms_cur;
+
+/* Attribues of custom domains in 'doms_cur' */
+static struct sched_domain_attr *dattr_cur;
+
+/*
+ * Special case: If a kmalloc() of a doms_cur partition (array of
+ * cpumask) fails, then fallback to a single sched domain,
+ * as determined by the single cpumask fallback_doms.
+ */
+cpumask_var_t fallback_doms;
+
+/*
+ * arch_update_cpu_topology lets virtualized architectures update the
+ * CPU core maps. It is supposed to return 1 if the topology changed
+ * or 0 if it stayed the same.
+ */
+int __weak arch_update_cpu_topology(void)
+{
+ return 0;
+}
+
+cpumask_var_t *alloc_sched_domains(unsigned int ndoms)
+{
+ int i;
+ cpumask_var_t *doms;
+
+ doms = kmalloc(sizeof(*doms) * ndoms, GFP_KERNEL);
+ if (!doms)
+ return NULL;
+ for (i = 0; i < ndoms; i++) {
+ if (!alloc_cpumask_var(&doms[i], GFP_KERNEL)) {
+ free_sched_domains(doms, i);
+ return NULL;
+ }
+ }
+ return doms;
+}
+
+void free_sched_domains(cpumask_var_t doms[], unsigned int ndoms)
+{
+ unsigned int i;
+ for (i = 0; i < ndoms; i++)
+ free_cpumask_var(doms[i]);
+ kfree(doms);
+}
+
+/*
+ * Set up scheduler domains and groups. Callers must hold the hotplug lock.
+ * For now this just excludes isolated CPUs, but could be used to
+ * exclude other special cases in the future.
+ */
+int init_sched_domains(const struct cpumask *cpu_map)
+{
+ int err;
+
+ arch_update_cpu_topology();
+ ndoms_cur = 1;
+ doms_cur = alloc_sched_domains(ndoms_cur);
+ if (!doms_cur)
+ doms_cur = &fallback_doms;
+ cpumask_andnot(doms_cur[0], cpu_map, cpu_isolated_map);
+ err = build_sched_domains(doms_cur[0], NULL);
+ register_sched_domain_sysctl();
+
+ return err;
+}
+
+/*
+ * Detach sched domains from a group of CPUs specified in cpu_map
+ * These CPUs will now be attached to the NULL domain
+ */
+static void detach_destroy_domains(const struct cpumask *cpu_map)
+{
+ int i;
+
+ rcu_read_lock();
+ for_each_cpu(i, cpu_map)
+ cpu_attach_domain(NULL, &def_root_domain, i);
+ rcu_read_unlock();
+}
+
+/* handle null as "default" */
+static int dattrs_equal(struct sched_domain_attr *cur, int idx_cur,
+ struct sched_domain_attr *new, int idx_new)
+{
+ struct sched_domain_attr tmp;
+
+ /* Fast path: */
+ if (!new && !cur)
+ return 1;
+
+ tmp = SD_ATTR_INIT;
+ return !memcmp(cur ? (cur + idx_cur) : &tmp,
+ new ? (new + idx_new) : &tmp,
+ sizeof(struct sched_domain_attr));
+}
+
+/*
+ * Partition sched domains as specified by the 'ndoms_new'
+ * cpumasks in the array doms_new[] of cpumasks. This compares
+ * doms_new[] to the current sched domain partitioning, doms_cur[].
+ * It destroys each deleted domain and builds each new domain.
+ *
+ * 'doms_new' is an array of cpumask_var_t's of length 'ndoms_new'.
+ * The masks don't intersect (don't overlap.) We should setup one
+ * sched domain for each mask. CPUs not in any of the cpumasks will
+ * not be load balanced. If the same cpumask appears both in the
+ * current 'doms_cur' domains and in the new 'doms_new', we can leave
+ * it as it is.
+ *
+ * The passed in 'doms_new' should be allocated using
+ * alloc_sched_domains. This routine takes ownership of it and will
+ * free_sched_domains it when done with it. If the caller failed the
+ * alloc call, then it can pass in doms_new == NULL && ndoms_new == 1,
+ * and partition_sched_domains() will fallback to the single partition
+ * 'fallback_doms', it also forces the domains to be rebuilt.
+ *
+ * If doms_new == NULL it will be replaced with cpu_online_mask.
+ * ndoms_new == 0 is a special case for destroying existing domains,
+ * and it will not create the default domain.
+ *
+ * Call with hotplug lock held
+ */
+void partition_sched_domains(int ndoms_new, cpumask_var_t doms_new[],
+ struct sched_domain_attr *dattr_new)
+{
+ int i, j, n;
+ int new_topology;
+
+ mutex_lock(&sched_domains_mutex);
+
+ /* Always unregister in case we don't destroy any domains: */
+ unregister_sched_domain_sysctl();
+
+ /* Let the architecture update CPU core mappings: */
+ new_topology = arch_update_cpu_topology();
+
+ n = doms_new ? ndoms_new : 0;
+
+ /* Destroy deleted domains: */
+ for (i = 0; i < ndoms_cur; i++) {
+ for (j = 0; j < n && !new_topology; j++) {
+ if (cpumask_equal(doms_cur[i], doms_new[j])
+ && dattrs_equal(dattr_cur, i, dattr_new, j))
+ goto match1;
+ }
+ /* No match - a current sched domain not in new doms_new[] */
+ detach_destroy_domains(doms_cur[i]);
+match1:
+ ;
+ }
+
+ n = ndoms_cur;
+ if (doms_new == NULL) {
+ n = 0;
+ doms_new = &fallback_doms;
+ cpumask_andnot(doms_new[0], cpu_active_mask, cpu_isolated_map);
+ WARN_ON_ONCE(dattr_new);
+ }
+
+ /* Build new domains: */
+ for (i = 0; i < ndoms_new; i++) {
+ for (j = 0; j < n && !new_topology; j++) {
+ if (cpumask_equal(doms_new[i], doms_cur[j])
+ && dattrs_equal(dattr_new, i, dattr_cur, j))
+ goto match2;
+ }
+ /* No match - add a new doms_new */
+ build_sched_domains(doms_new[i], dattr_new ? dattr_new + i : NULL);
+match2:
+ ;
+ }
+
+ /* Remember the new sched domains: */
+ if (doms_cur != &fallback_doms)
+ free_sched_domains(doms_cur, ndoms_cur);
+
+ kfree(dattr_cur);
+ doms_cur = doms_new;
+ dattr_cur = dattr_new;
+ ndoms_cur = ndoms_new;
+
+ register_sched_domain_sysctl();
+
+ mutex_unlock(&sched_domains_mutex);
+}
+
--
2.7.4
^ permalink raw reply related [flat|nested] 119+ messages in thread
* [PATCH 06/89] sched/topology: Split out scheduler topology interfaces from <linux/sched.h> into <linux/sched/topology.h>
2017-02-06 13:28 [PATCH 00/89] Major reorganization of <linux/sched.h> Ingo Molnar
` (4 preceding siblings ...)
2017-02-06 13:28 ` [PATCH 05/89] sched/topology: Split out scheduler topology code from core.c into topology.c Ingo Molnar
@ 2017-02-06 13:28 ` Ingo Molnar
2017-02-06 13:28 ` [PATCH 07/89] sched/idle: Create <linux/sched/idle.h> for idle CPU related definitions Ingo Molnar
` (84 subsequent siblings)
90 siblings, 0 replies; 119+ messages in thread
From: Ingo Molnar @ 2017-02-06 13:28 UTC (permalink / raw)
To: linux-kernel
Cc: Andrew Morton, Linus Torvalds, Mike Galbraith, Oleg Nesterov,
Peter Zijlstra, Thomas Gleixner
The vast majority of sched.h users does not require the topology types and
interfaces, so split them out into a separate header, and include them
in the .c files that require them.
This reduces the size of linux/sched.h by ~6%.
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
arch/arm/kernel/topology.c | 1 +
arch/arm64/kernel/topology.c | 1 +
arch/powerpc/kernel/smp.c | 1 +
arch/s390/kernel/topology.c | 1 +
arch/x86/kernel/smpboot.c | 1 +
block/blk-mq.c | 1 +
block/blk-softirq.c | 1 +
include/linux/cpuset.h | 1 +
include/linux/sched.h | 212 -----------------------------------------------------------
include/linux/sched/topology.h | 217 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
kernel/sched/fair.c | 2 +
kernel/sched/sched.h | 1 +
12 files changed, 228 insertions(+), 212 deletions(-)
diff --git a/arch/arm/kernel/topology.c b/arch/arm/kernel/topology.c
index ebf47d91b804..f8a3ab82e77f 100644
--- a/arch/arm/kernel/topology.c
+++ b/arch/arm/kernel/topology.c
@@ -21,6 +21,7 @@
#include <linux/nodemask.h>
#include <linux/of.h>
#include <linux/sched.h>
+#include <linux/sched/topology.h>
#include <linux/slab.h>
#include <linux/string.h>
diff --git a/arch/arm64/kernel/topology.c b/arch/arm64/kernel/topology.c
index 655e65f38f31..3aeb7bbb1bfc 100644
--- a/arch/arm64/kernel/topology.c
+++ b/arch/arm64/kernel/topology.c
@@ -20,6 +20,7 @@
#include <linux/nodemask.h>
#include <linux/of.h>
#include <linux/sched.h>
+#include <linux/sched/topology.h>
#include <linux/slab.h>
#include <linux/string.h>
#include <linux/cpufreq.h>
diff --git a/arch/powerpc/kernel/smp.c b/arch/powerpc/kernel/smp.c
index 893bd7f79be6..54903862cf57 100644
--- a/arch/powerpc/kernel/smp.c
+++ b/arch/powerpc/kernel/smp.c
@@ -20,6 +20,7 @@
#include <linux/kernel.h>
#include <linux/export.h>
#include <linux/sched.h>
+#include <linux/sched/topology.h>
#include <linux/smp.h>
#include <linux/interrupt.h>
#include <linux/delay.h>
diff --git a/arch/s390/kernel/topology.c b/arch/s390/kernel/topology.c
index 93dcbae1e98d..044dec44ce8d 100644
--- a/arch/s390/kernel/topology.c
+++ b/arch/s390/kernel/topology.c
@@ -13,6 +13,7 @@
#include <linux/export.h>
#include <linux/kernel.h>
#include <linux/sched.h>
+#include <linux/sched/topology.h>
#include <linux/delay.h>
#include <linux/init.h>
#include <linux/slab.h>
diff --git a/arch/x86/kernel/smpboot.c b/arch/x86/kernel/smpboot.c
index 46732dc3b73c..0fe89249d9ac 100644
--- a/arch/x86/kernel/smpboot.c
+++ b/arch/x86/kernel/smpboot.c
@@ -45,6 +45,7 @@
#include <linux/smp.h>
#include <linux/export.h>
#include <linux/sched.h>
+#include <linux/sched/topology.h>
#include <linux/percpu.h>
#include <linux/bootmem.h>
#include <linux/err.h>
diff --git a/block/blk-mq.c b/block/blk-mq.c
index c3400b5444a7..92bf48dac06f 100644
--- a/block/blk-mq.c
+++ b/block/blk-mq.c
@@ -20,6 +20,7 @@
#include <linux/cpu.h>
#include <linux/cache.h>
#include <linux/sched/sysctl.h>
+#include <linux/sched/topology.h>
#include <linux/delay.h>
#include <linux/crash_dump.h>
#include <linux/prefetch.h>
diff --git a/block/blk-softirq.c b/block/blk-softirq.c
index 06cf9807f49a..87b7df4851bf 100644
--- a/block/blk-softirq.c
+++ b/block/blk-softirq.c
@@ -9,6 +9,7 @@
#include <linux/interrupt.h>
#include <linux/cpu.h>
#include <linux/sched.h>
+#include <linux/sched/topology.h>
#include "blk.h"
diff --git a/include/linux/cpuset.h b/include/linux/cpuset.h
index bfc204e70338..c608c39cb161 100644
--- a/include/linux/cpuset.h
+++ b/include/linux/cpuset.h
@@ -9,6 +9,7 @@
*/
#include <linux/sched.h>
+#include <linux/sched/topology.h>
#include <linux/cpumask.h>
#include <linux/nodemask.h>
#include <linux/mm.h>
diff --git a/include/linux/sched.h b/include/linux/sched.h
index c8e519d0b4a3..b2e18537088b 100644
--- a/include/linux/sched.h
+++ b/include/linux/sched.h
@@ -969,12 +969,6 @@ enum cpu_idle_type {
# define SCHED_FIXEDPOINT_SCALE (1L << SCHED_FIXEDPOINT_SHIFT)
/*
- * Increase resolution of cpu_capacity calculations
- */
-#define SCHED_CAPACITY_SHIFT SCHED_FIXEDPOINT_SHIFT
-#define SCHED_CAPACITY_SCALE (1L << SCHED_CAPACITY_SHIFT)
-
-/*
* Wake-queues are lists of tasks with a pending wakeup, whose
* callers have already marked the task as woken internally,
* and can thus carry on. A common use case is being able to
@@ -1024,214 +1018,8 @@ extern void wake_q_add(struct wake_q_head *head,
struct task_struct *task);
extern void wake_up_q(struct wake_q_head *head);
-/*
- * sched-domains (multiprocessor balancing) declarations:
- */
-#ifdef CONFIG_SMP
-#define SD_LOAD_BALANCE 0x0001 /* Do load balancing on this domain. */
-#define SD_BALANCE_NEWIDLE 0x0002 /* Balance when about to become idle */
-#define SD_BALANCE_EXEC 0x0004 /* Balance on exec */
-#define SD_BALANCE_FORK 0x0008 /* Balance on fork, clone */
-#define SD_BALANCE_WAKE 0x0010 /* Balance on wakeup */
-#define SD_WAKE_AFFINE 0x0020 /* Wake task to waking CPU */
-#define SD_ASYM_CPUCAPACITY 0x0040 /* Groups have different max cpu capacities */
-#define SD_SHARE_CPUCAPACITY 0x0080 /* Domain members share cpu capacity */
-#define SD_SHARE_POWERDOMAIN 0x0100 /* Domain members share power domain */
-#define SD_SHARE_PKG_RESOURCES 0x0200 /* Domain members share cpu pkg resources */
-#define SD_SERIALIZE 0x0400 /* Only a single load balancing instance */
-#define SD_ASYM_PACKING 0x0800 /* Place busy groups earlier in the domain */
-#define SD_PREFER_SIBLING 0x1000 /* Prefer to place tasks in a sibling domain */
-#define SD_OVERLAP 0x2000 /* sched_domains of this level overlap */
-#define SD_NUMA 0x4000 /* cross-node balancing */
-
-#ifdef CONFIG_SCHED_SMT
-static inline int cpu_smt_flags(void)
-{
- return SD_SHARE_CPUCAPACITY | SD_SHARE_PKG_RESOURCES;
-}
-#endif
-
-#ifdef CONFIG_SCHED_MC
-static inline int cpu_core_flags(void)
-{
- return SD_SHARE_PKG_RESOURCES;
-}
-#endif
-
-#ifdef CONFIG_NUMA
-static inline int cpu_numa_flags(void)
-{
- return SD_NUMA;
-}
-#endif
-
-extern int arch_asym_cpu_priority(int cpu);
-
-struct sched_domain_attr {
- int relax_domain_level;
-};
-
-#define SD_ATTR_INIT (struct sched_domain_attr) { \
- .relax_domain_level = -1, \
-}
-
-extern int sched_domain_level_max;
-
-struct sched_group;
-
-struct sched_domain_shared {
- atomic_t ref;
- atomic_t nr_busy_cpus;
- int has_idle_cores;
-};
-
-struct sched_domain {
- /* These fields must be setup */
- struct sched_domain *parent; /* top domain must be null terminated */
- struct sched_domain *child; /* bottom domain must be null terminated */
- struct sched_group *groups; /* the balancing groups of the domain */
- unsigned long min_interval; /* Minimum balance interval ms */
- unsigned long max_interval; /* Maximum balance interval ms */
- unsigned int busy_factor; /* less balancing by factor if busy */
- unsigned int imbalance_pct; /* No balance until over watermark */
- unsigned int cache_nice_tries; /* Leave cache hot tasks for # tries */
- unsigned int busy_idx;
- unsigned int idle_idx;
- unsigned int newidle_idx;
- unsigned int wake_idx;
- unsigned int forkexec_idx;
- unsigned int smt_gain;
-
- int nohz_idle; /* NOHZ IDLE status */
- int flags; /* See SD_* */
- int level;
-
- /* Runtime fields. */
- unsigned long last_balance; /* init to jiffies. units in jiffies */
- unsigned int balance_interval; /* initialise to 1. units in ms. */
- unsigned int nr_balance_failed; /* initialise to 0 */
-
- /* idle_balance() stats */
- u64 max_newidle_lb_cost;
- unsigned long next_decay_max_lb_cost;
-
- u64 avg_scan_cost; /* select_idle_sibling */
-
-#ifdef CONFIG_SCHEDSTATS
- /* load_balance() stats */
- unsigned int lb_count[CPU_MAX_IDLE_TYPES];
- unsigned int lb_failed[CPU_MAX_IDLE_TYPES];
- unsigned int lb_balanced[CPU_MAX_IDLE_TYPES];
- unsigned int lb_imbalance[CPU_MAX_IDLE_TYPES];
- unsigned int lb_gained[CPU_MAX_IDLE_TYPES];
- unsigned int lb_hot_gained[CPU_MAX_IDLE_TYPES];
- unsigned int lb_nobusyg[CPU_MAX_IDLE_TYPES];
- unsigned int lb_nobusyq[CPU_MAX_IDLE_TYPES];
-
- /* Active load balancing */
- unsigned int alb_count;
- unsigned int alb_failed;
- unsigned int alb_pushed;
-
- /* SD_BALANCE_EXEC stats */
- unsigned int sbe_count;
- unsigned int sbe_balanced;
- unsigned int sbe_pushed;
-
- /* SD_BALANCE_FORK stats */
- unsigned int sbf_count;
- unsigned int sbf_balanced;
- unsigned int sbf_pushed;
-
- /* try_to_wake_up() stats */
- unsigned int ttwu_wake_remote;
- unsigned int ttwu_move_affine;
- unsigned int ttwu_move_balance;
-#endif
-#ifdef CONFIG_SCHED_DEBUG
- char *name;
-#endif
- union {
- void *private; /* used during construction */
- struct rcu_head rcu; /* used during destruction */
- };
- struct sched_domain_shared *shared;
-
- unsigned int span_weight;
- /*
- * Span of all CPUs in this domain.
- *
- * NOTE: this field is variable length. (Allocated dynamically
- * by attaching extra space to the end of the structure,
- * depending on how many CPUs the kernel has booted up with)
- */
- unsigned long span[0];
-};
-
-static inline struct cpumask *sched_domain_span(struct sched_domain *sd)
-{
- return to_cpumask(sd->span);
-}
-
-extern void partition_sched_domains(int ndoms_new, cpumask_var_t doms_new[],
- struct sched_domain_attr *dattr_new);
-
-/* Allocate an array of sched domains, for partition_sched_domains(). */
-cpumask_var_t *alloc_sched_domains(unsigned int ndoms);
-void free_sched_domains(cpumask_var_t doms[], unsigned int ndoms);
-
-bool cpus_share_cache(int this_cpu, int that_cpu);
-
-typedef const struct cpumask *(*sched_domain_mask_f)(int cpu);
-typedef int (*sched_domain_flags_f)(void);
-
-#define SDTL_OVERLAP 0x01
-
-struct sd_data {
- struct sched_domain **__percpu sd;
- struct sched_domain_shared **__percpu sds;
- struct sched_group **__percpu sg;
- struct sched_group_capacity **__percpu sgc;
-};
-
-struct sched_domain_topology_level {
- sched_domain_mask_f mask;
- sched_domain_flags_f sd_flags;
- int flags;
- int numa_level;
- struct sd_data data;
-#ifdef CONFIG_SCHED_DEBUG
- char *name;
-#endif
-};
-
-extern void set_sched_topology(struct sched_domain_topology_level *tl);
extern void wake_up_if_idle(int cpu);
-#ifdef CONFIG_SCHED_DEBUG
-# define SD_INIT_NAME(type) .name = #type
-#else
-# define SD_INIT_NAME(type)
-#endif
-
-#else /* CONFIG_SMP */
-
-struct sched_domain_attr;
-
-static inline void
-partition_sched_domains(int ndoms_new, cpumask_var_t doms_new[],
- struct sched_domain_attr *dattr_new)
-{
-}
-
-static inline bool cpus_share_cache(int this_cpu, int that_cpu)
-{
- return true;
-}
-
-#endif /* !CONFIG_SMP */
-
-
struct io_context; /* See blkdev.h */
diff --git a/include/linux/sched/topology.h b/include/linux/sched/topology.h
new file mode 100644
index 000000000000..ae2cb8f9c431
--- /dev/null
+++ b/include/linux/sched/topology.h
@@ -0,0 +1,217 @@
+#ifndef _LINUX_SCHED_TOPOLOGY_H
+#define _LINUX_SCHED_TOPOLOGY_H
+
+/*
+ * sched-domains (multiprocessor balancing) declarations:
+ */
+#ifdef CONFIG_SMP
+
+#define SD_LOAD_BALANCE 0x0001 /* Do load balancing on this domain. */
+#define SD_BALANCE_NEWIDLE 0x0002 /* Balance when about to become idle */
+#define SD_BALANCE_EXEC 0x0004 /* Balance on exec */
+#define SD_BALANCE_FORK 0x0008 /* Balance on fork, clone */
+#define SD_BALANCE_WAKE 0x0010 /* Balance on wakeup */
+#define SD_WAKE_AFFINE 0x0020 /* Wake task to waking CPU */
+#define SD_ASYM_CPUCAPACITY 0x0040 /* Groups have different max cpu capacities */
+#define SD_SHARE_CPUCAPACITY 0x0080 /* Domain members share cpu capacity */
+#define SD_SHARE_POWERDOMAIN 0x0100 /* Domain members share power domain */
+#define SD_SHARE_PKG_RESOURCES 0x0200 /* Domain members share cpu pkg resources */
+#define SD_SERIALIZE 0x0400 /* Only a single load balancing instance */
+#define SD_ASYM_PACKING 0x0800 /* Place busy groups earlier in the domain */
+#define SD_PREFER_SIBLING 0x1000 /* Prefer to place tasks in a sibling domain */
+#define SD_OVERLAP 0x2000 /* sched_domains of this level overlap */
+#define SD_NUMA 0x4000 /* cross-node balancing */
+
+/*
+ * Increase resolution of cpu_capacity calculations
+ */
+#define SCHED_CAPACITY_SHIFT SCHED_FIXEDPOINT_SHIFT
+#define SCHED_CAPACITY_SCALE (1L << SCHED_CAPACITY_SHIFT)
+
+#ifdef CONFIG_SCHED_SMT
+static inline int cpu_smt_flags(void)
+{
+ return SD_SHARE_CPUCAPACITY | SD_SHARE_PKG_RESOURCES;
+}
+#endif
+
+#ifdef CONFIG_SCHED_MC
+static inline int cpu_core_flags(void)
+{
+ return SD_SHARE_PKG_RESOURCES;
+}
+#endif
+
+#ifdef CONFIG_NUMA
+static inline int cpu_numa_flags(void)
+{
+ return SD_NUMA;
+}
+#endif
+
+extern int arch_asym_cpu_priority(int cpu);
+
+struct sched_domain_attr {
+ int relax_domain_level;
+};
+
+#define SD_ATTR_INIT (struct sched_domain_attr) { \
+ .relax_domain_level = -1, \
+}
+
+extern int sched_domain_level_max;
+
+struct sched_group;
+
+struct sched_domain_shared {
+ atomic_t ref;
+ atomic_t nr_busy_cpus;
+ int has_idle_cores;
+};
+
+struct sched_domain {
+ /* These fields must be setup */
+ struct sched_domain *parent; /* top domain must be null terminated */
+ struct sched_domain *child; /* bottom domain must be null terminated */
+ struct sched_group *groups; /* the balancing groups of the domain */
+ unsigned long min_interval; /* Minimum balance interval ms */
+ unsigned long max_interval; /* Maximum balance interval ms */
+ unsigned int busy_factor; /* less balancing by factor if busy */
+ unsigned int imbalance_pct; /* No balance until over watermark */
+ unsigned int cache_nice_tries; /* Leave cache hot tasks for # tries */
+ unsigned int busy_idx;
+ unsigned int idle_idx;
+ unsigned int newidle_idx;
+ unsigned int wake_idx;
+ unsigned int forkexec_idx;
+ unsigned int smt_gain;
+
+ int nohz_idle; /* NOHZ IDLE status */
+ int flags; /* See SD_* */
+ int level;
+
+ /* Runtime fields. */
+ unsigned long last_balance; /* init to jiffies. units in jiffies */
+ unsigned int balance_interval; /* initialise to 1. units in ms. */
+ unsigned int nr_balance_failed; /* initialise to 0 */
+
+ /* idle_balance() stats */
+ u64 max_newidle_lb_cost;
+ unsigned long next_decay_max_lb_cost;
+
+ u64 avg_scan_cost; /* select_idle_sibling */
+
+#ifdef CONFIG_SCHEDSTATS
+ /* load_balance() stats */
+ unsigned int lb_count[CPU_MAX_IDLE_TYPES];
+ unsigned int lb_failed[CPU_MAX_IDLE_TYPES];
+ unsigned int lb_balanced[CPU_MAX_IDLE_TYPES];
+ unsigned int lb_imbalance[CPU_MAX_IDLE_TYPES];
+ unsigned int lb_gained[CPU_MAX_IDLE_TYPES];
+ unsigned int lb_hot_gained[CPU_MAX_IDLE_TYPES];
+ unsigned int lb_nobusyg[CPU_MAX_IDLE_TYPES];
+ unsigned int lb_nobusyq[CPU_MAX_IDLE_TYPES];
+
+ /* Active load balancing */
+ unsigned int alb_count;
+ unsigned int alb_failed;
+ unsigned int alb_pushed;
+
+ /* SD_BALANCE_EXEC stats */
+ unsigned int sbe_count;
+ unsigned int sbe_balanced;
+ unsigned int sbe_pushed;
+
+ /* SD_BALANCE_FORK stats */
+ unsigned int sbf_count;
+ unsigned int sbf_balanced;
+ unsigned int sbf_pushed;
+
+ /* try_to_wake_up() stats */
+ unsigned int ttwu_wake_remote;
+ unsigned int ttwu_move_affine;
+ unsigned int ttwu_move_balance;
+#endif
+#ifdef CONFIG_SCHED_DEBUG
+ char *name;
+#endif
+ union {
+ void *private; /* used during construction */
+ struct rcu_head rcu; /* used during destruction */
+ };
+ struct sched_domain_shared *shared;
+
+ unsigned int span_weight;
+ /*
+ * Span of all CPUs in this domain.
+ *
+ * NOTE: this field is variable length. (Allocated dynamically
+ * by attaching extra space to the end of the structure,
+ * depending on how many CPUs the kernel has booted up with)
+ */
+ unsigned long span[0];
+};
+
+static inline struct cpumask *sched_domain_span(struct sched_domain *sd)
+{
+ return to_cpumask(sd->span);
+}
+
+extern void partition_sched_domains(int ndoms_new, cpumask_var_t doms_new[],
+ struct sched_domain_attr *dattr_new);
+
+/* Allocate an array of sched domains, for partition_sched_domains(). */
+cpumask_var_t *alloc_sched_domains(unsigned int ndoms);
+void free_sched_domains(cpumask_var_t doms[], unsigned int ndoms);
+
+bool cpus_share_cache(int this_cpu, int that_cpu);
+
+typedef const struct cpumask *(*sched_domain_mask_f)(int cpu);
+typedef int (*sched_domain_flags_f)(void);
+
+#define SDTL_OVERLAP 0x01
+
+struct sd_data {
+ struct sched_domain **__percpu sd;
+ struct sched_domain_shared **__percpu sds;
+ struct sched_group **__percpu sg;
+ struct sched_group_capacity **__percpu sgc;
+};
+
+struct sched_domain_topology_level {
+ sched_domain_mask_f mask;
+ sched_domain_flags_f sd_flags;
+ int flags;
+ int numa_level;
+ struct sd_data data;
+#ifdef CONFIG_SCHED_DEBUG
+ char *name;
+#endif
+};
+
+extern void set_sched_topology(struct sched_domain_topology_level *tl);
+
+#ifdef CONFIG_SCHED_DEBUG
+# define SD_INIT_NAME(type) .name = #type
+#else
+# define SD_INIT_NAME(type)
+#endif
+
+#else /* CONFIG_SMP */
+
+struct sched_domain_attr;
+
+static inline void
+partition_sched_domains(int ndoms_new, cpumask_var_t doms_new[],
+ struct sched_domain_attr *dattr_new)
+{
+}
+
+static inline bool cpus_share_cache(int this_cpu, int that_cpu)
+{
+ return true;
+}
+
+#endif /* !CONFIG_SMP */
+
+#endif /* _LINUX_SCHED_TOPOLOGY_H */
diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c
index 274c747a01ce..fcd520db8e32 100644
--- a/kernel/sched/fair.c
+++ b/kernel/sched/fair.c
@@ -21,6 +21,8 @@
*/
#include <linux/sched.h>
+#include <linux/sched/topology.h>
+
#include <linux/latencytop.h>
#include <linux/cpumask.h>
#include <linux/cpuidle.h>
diff --git a/kernel/sched/sched.h b/kernel/sched/sched.h
index 17ed94b9b413..319fcf80930c 100644
--- a/kernel/sched/sched.h
+++ b/kernel/sched/sched.h
@@ -1,6 +1,7 @@
#include <linux/sched.h>
#include <linux/sched/sysctl.h>
+#include <linux/sched/topology.h>
#include <linux/sched/rt.h>
#include <linux/u64_stats_sync.h>
#include <linux/sched/deadline.h>
--
2.7.4
^ permalink raw reply related [flat|nested] 119+ messages in thread
* [PATCH 07/89] sched/idle: Create <linux/sched/idle.h> for idle CPU related definitions
2017-02-06 13:28 [PATCH 00/89] Major reorganization of <linux/sched.h> Ingo Molnar
` (5 preceding siblings ...)
2017-02-06 13:28 ` [PATCH 06/89] sched/topology: Split out scheduler topology interfaces from <linux/sched.h> into <linux/sched/topology.h> Ingo Molnar
@ 2017-02-06 13:28 ` Ingo Molnar
2017-02-06 13:28 ` [PATCH 08/89] sched/idle: Move wake_up_if_idle prototype to <linux/sched/idle.h> Ingo Molnar
` (83 subsequent siblings)
90 siblings, 0 replies; 119+ messages in thread
From: Ingo Molnar @ 2017-02-06 13:28 UTC (permalink / raw)
To: linux-kernel
Cc: Andrew Morton, Linus Torvalds, Mike Galbraith, Oleg Nesterov,
Peter Zijlstra, Thomas Gleixner
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
include/linux/sched.h | 7 -------
include/linux/sched/idle.h | 11 +++++++++++
include/linux/sched/topology.h | 2 ++
3 files changed, 13 insertions(+), 7 deletions(-)
diff --git a/include/linux/sched.h b/include/linux/sched.h
index b2e18537088b..312796d25a05 100644
--- a/include/linux/sched.h
+++ b/include/linux/sched.h
@@ -951,13 +951,6 @@ static inline int sched_info_on(void)
void force_schedstat_enabled(void);
#endif
-enum cpu_idle_type {
- CPU_IDLE,
- CPU_NOT_IDLE,
- CPU_NEWLY_IDLE,
- CPU_MAX_IDLE_TYPES
-};
-
/*
* Integer metrics need fixed point arithmetic, e.g., sched/fair
* has a few: load, load_avg, util_avg, freq, and capacity.
diff --git a/include/linux/sched/idle.h b/include/linux/sched/idle.h
new file mode 100644
index 000000000000..14640f5798dc
--- /dev/null
+++ b/include/linux/sched/idle.h
@@ -0,0 +1,11 @@
+#ifndef _LINUX_SCHED_IDLE_H
+#define _LINUX_SCHED_IDLE_H
+
+enum cpu_idle_type {
+ CPU_IDLE,
+ CPU_NOT_IDLE,
+ CPU_NEWLY_IDLE,
+ CPU_MAX_IDLE_TYPES
+};
+
+#endif /* _LINUX_SCHED_IDLE_H */
diff --git a/include/linux/sched/topology.h b/include/linux/sched/topology.h
index ae2cb8f9c431..0d6fceff37bb 100644
--- a/include/linux/sched/topology.h
+++ b/include/linux/sched/topology.h
@@ -1,6 +1,8 @@
#ifndef _LINUX_SCHED_TOPOLOGY_H
#define _LINUX_SCHED_TOPOLOGY_H
+#include <linux/sched/idle.h>
+
/*
* sched-domains (multiprocessor balancing) declarations:
*/
--
2.7.4
^ permalink raw reply related [flat|nested] 119+ messages in thread
* [PATCH 08/89] sched/idle: Move wake_up_if_idle prototype to <linux/sched/idle.h>
2017-02-06 13:28 [PATCH 00/89] Major reorganization of <linux/sched.h> Ingo Molnar
` (6 preceding siblings ...)
2017-02-06 13:28 ` [PATCH 07/89] sched/idle: Create <linux/sched/idle.h> for idle CPU related definitions Ingo Molnar
@ 2017-02-06 13:28 ` Ingo Molnar
2017-02-06 13:28 ` [PATCH 09/89] sched/wake_q: Move the wake-queue types and interfaces from sched.h into <linux/sched/wake_q.h> Ingo Molnar
` (82 subsequent siblings)
90 siblings, 0 replies; 119+ messages in thread
From: Ingo Molnar @ 2017-02-06 13:28 UTC (permalink / raw)
To: linux-kernel
Cc: Andrew Morton, Linus Torvalds, Mike Galbraith, Oleg Nesterov,
Peter Zijlstra, Thomas Gleixner
No need to clutter <linux/sched.h> with this rarely used prototype.
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
include/linux/sched.h | 2 --
include/linux/sched/idle.h | 2 ++
kernel/smp.c | 1 +
3 files changed, 3 insertions(+), 2 deletions(-)
diff --git a/include/linux/sched.h b/include/linux/sched.h
index 312796d25a05..ebc11bb42c49 100644
--- a/include/linux/sched.h
+++ b/include/linux/sched.h
@@ -1011,8 +1011,6 @@ extern void wake_q_add(struct wake_q_head *head,
struct task_struct *task);
extern void wake_up_q(struct wake_q_head *head);
-extern void wake_up_if_idle(int cpu);
-
struct io_context; /* See blkdev.h */
diff --git a/include/linux/sched/idle.h b/include/linux/sched/idle.h
index 14640f5798dc..6bcb32118ab0 100644
--- a/include/linux/sched/idle.h
+++ b/include/linux/sched/idle.h
@@ -8,4 +8,6 @@ enum cpu_idle_type {
CPU_MAX_IDLE_TYPES
};
+extern void wake_up_if_idle(int cpu);
+
#endif /* _LINUX_SCHED_IDLE_H */
diff --git a/kernel/smp.c b/kernel/smp.c
index 77fcdb9f2775..a817769b53c0 100644
--- a/kernel/smp.c
+++ b/kernel/smp.c
@@ -17,6 +17,7 @@
#include <linux/smp.h>
#include <linux/cpu.h>
#include <linux/sched.h>
+#include <linux/sched/idle.h>
#include <linux/hypervisor.h>
#include "smpboot.h"
--
2.7.4
^ permalink raw reply related [flat|nested] 119+ messages in thread
* [PATCH 09/89] sched/wake_q: Move the wake-queue types and interfaces from sched.h into <linux/sched/wake_q.h>
2017-02-06 13:28 [PATCH 00/89] Major reorganization of <linux/sched.h> Ingo Molnar
` (7 preceding siblings ...)
2017-02-06 13:28 ` [PATCH 08/89] sched/idle: Move wake_up_if_idle prototype to <linux/sched/idle.h> Ingo Molnar
@ 2017-02-06 13:28 ` Ingo Molnar
2017-02-06 13:28 ` [PATCH 10/89] sched/clock: Introduce <linux/sched/clock.h> Ingo Molnar
` (81 subsequent siblings)
90 siblings, 0 replies; 119+ messages in thread
From: Ingo Molnar @ 2017-02-06 13:28 UTC (permalink / raw)
To: linux-kernel
Cc: Andrew Morton, Linus Torvalds, Mike Galbraith, Oleg Nesterov,
Peter Zijlstra, Thomas Gleixner
Note that this requires the basic task->wake_q type to be an opaque void *.
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
include/linux/sched.h | 52 +---------------------------------------------------
include/linux/sched/wake_q.h | 54 ++++++++++++++++++++++++++++++++++++++++++++++++++++++
ipc/mqueue.c | 1 +
ipc/msg.c | 1 +
ipc/sem.c | 1 +
kernel/fork.c | 2 +-
kernel/futex.c | 1 +
kernel/locking/mutex.c | 1 +
kernel/locking/rtmutex.c | 1 +
kernel/locking/rtmutex_common.h | 1 +
kernel/locking/rwsem-xadd.c | 3 ++-
kernel/sched/core.c | 6 +++---
kernel/sched/sched.h | 1 +
13 files changed, 69 insertions(+), 56 deletions(-)
diff --git a/include/linux/sched.h b/include/linux/sched.h
index ebc11bb42c49..e973a0f5550c 100644
--- a/include/linux/sched.h
+++ b/include/linux/sched.h
@@ -961,56 +961,6 @@ void force_schedstat_enabled(void);
# define SCHED_FIXEDPOINT_SHIFT 10
# define SCHED_FIXEDPOINT_SCALE (1L << SCHED_FIXEDPOINT_SHIFT)
-/*
- * Wake-queues are lists of tasks with a pending wakeup, whose
- * callers have already marked the task as woken internally,
- * and can thus carry on. A common use case is being able to
- * do the wakeups once the corresponding user lock as been
- * released.
- *
- * We hold reference to each task in the list across the wakeup,
- * thus guaranteeing that the memory is still valid by the time
- * the actual wakeups are performed in wake_up_q().
- *
- * One per task suffices, because there's never a need for a task to be
- * in two wake queues simultaneously; it is forbidden to abandon a task
- * in a wake queue (a call to wake_up_q() _must_ follow), so if a task is
- * already in a wake queue, the wakeup will happen soon and the second
- * waker can just skip it.
- *
- * The DEFINE_WAKE_Q macro declares and initializes the list head.
- * wake_up_q() does NOT reinitialize the list; it's expected to be
- * called near the end of a function. Otherwise, the list can be
- * re-initialized for later re-use by wake_q_init().
- *
- * Note that this can cause spurious wakeups. schedule() callers
- * must ensure the call is done inside a loop, confirming that the
- * wakeup condition has in fact occurred.
- */
-struct wake_q_node {
- struct wake_q_node *next;
-};
-
-struct wake_q_head {
- struct wake_q_node *first;
- struct wake_q_node **lastp;
-};
-
-#define WAKE_Q_TAIL ((struct wake_q_node *) 0x01)
-
-#define DEFINE_WAKE_Q(name) \
- struct wake_q_head name = { WAKE_Q_TAIL, &name.first }
-
-static inline void wake_q_init(struct wake_q_head *head)
-{
- head->first = WAKE_Q_TAIL;
- head->lastp = &head->first;
-}
-
-extern void wake_q_add(struct wake_q_head *head,
- struct task_struct *task);
-extern void wake_up_q(struct wake_q_head *head);
-
struct io_context; /* See blkdev.h */
@@ -1507,7 +1457,7 @@ struct task_struct {
/* Protection of the PI data structures: */
raw_spinlock_t pi_lock;
- struct wake_q_node wake_q;
+ void *wake_q;
#ifdef CONFIG_RT_MUTEXES
/* PI waiters blocked on a rt_mutex held by this task */
diff --git a/include/linux/sched/wake_q.h b/include/linux/sched/wake_q.h
new file mode 100644
index 000000000000..9a32f17b6a5e
--- /dev/null
+++ b/include/linux/sched/wake_q.h
@@ -0,0 +1,54 @@
+#ifndef _LINUX_SCHED_WAKE_Q_H
+#define _LINUX_SCHED_WAKE_Q_H
+
+/*
+ * Wake-queues are lists of tasks with a pending wakeup, whose
+ * callers have already marked the task as woken internally,
+ * and can thus carry on. A common use case is being able to
+ * do the wakeups once the corresponding user lock as been
+ * released.
+ *
+ * We hold reference to each task in the list across the wakeup,
+ * thus guaranteeing that the memory is still valid by the time
+ * the actual wakeups are performed in wake_up_q().
+ *
+ * One per task suffices, because there's never a need for a task to be
+ * in two wake queues simultaneously; it is forbidden to abandon a task
+ * in a wake queue (a call to wake_up_q() _must_ follow), so if a task is
+ * already in a wake queue, the wakeup will happen soon and the second
+ * waker can just skip it.
+ *
+ * The DEFINE_WAKE_Q macro declares and initializes the list head.
+ * wake_up_q() does NOT reinitialize the list; it's expected to be
+ * called near the end of a function. Otherwise, the list can be
+ * re-initialized for later re-use by wake_q_init().
+ *
+ * Note that this can cause spurious wakeups. schedule() callers
+ * must ensure the call is done inside a loop, confirming that the
+ * wakeup condition has in fact occurred.
+ */
+struct wake_q_node {
+ struct wake_q_node *next;
+};
+
+struct wake_q_head {
+ struct wake_q_node *first;
+ struct wake_q_node **lastp;
+};
+
+#define WAKE_Q_TAIL ((struct wake_q_node *) 0x01)
+
+#define DEFINE_WAKE_Q(name) \
+ struct wake_q_head name = { WAKE_Q_TAIL, &name.first }
+
+static inline void wake_q_init(struct wake_q_head *head)
+{
+ head->first = WAKE_Q_TAIL;
+ head->lastp = &head->first;
+}
+
+extern void wake_q_add(struct wake_q_head *head,
+ struct task_struct *task);
+extern void wake_up_q(struct wake_q_head *head);
+
+#endif /* _LINUX_SCHED_WAKE_Q_H */
diff --git a/ipc/mqueue.c b/ipc/mqueue.c
index 7a2d8f0c8ae5..a604f1036067 100644
--- a/ipc/mqueue.c
+++ b/ipc/mqueue.c
@@ -35,6 +35,7 @@
#include <linux/ipc_namespace.h>
#include <linux/user_namespace.h>
#include <linux/slab.h>
+#include <linux/sched/wake_q.h>
#include <net/sock.h>
#include "util.h"
diff --git a/ipc/msg.c b/ipc/msg.c
index e3e52ce01123..ecc387e573f6 100644
--- a/ipc/msg.c
+++ b/ipc/msg.c
@@ -31,6 +31,7 @@
#include <linux/list.h>
#include <linux/security.h>
#include <linux/sched.h>
+#include <linux/sched/wake_q.h>
#include <linux/syscalls.h>
#include <linux/audit.h>
#include <linux/seq_file.h>
diff --git a/ipc/sem.c b/ipc/sem.c
index 3ec5742b5640..c65dff526a9f 100644
--- a/ipc/sem.c
+++ b/ipc/sem.c
@@ -82,6 +82,7 @@
#include <linux/rwsem.h>
#include <linux/nsproxy.h>
#include <linux/ipc_namespace.h>
+#include <linux/sched/wake_q.h>
#include <linux/uaccess.h>
#include "util.h"
diff --git a/kernel/fork.c b/kernel/fork.c
index 077ce3b4c0ef..9aa2ca28a76c 100644
--- a/kernel/fork.c
+++ b/kernel/fork.c
@@ -538,7 +538,7 @@ static struct task_struct *dup_task_struct(struct task_struct *orig, int node)
#endif
tsk->splice_pipe = NULL;
tsk->task_frag.page = NULL;
- tsk->wake_q.next = NULL;
+ tsk->wake_q = NULL;
account_kernel_stack(tsk, 1);
diff --git a/kernel/futex.c b/kernel/futex.c
index 0842c8ca534b..e41472f33c73 100644
--- a/kernel/futex.c
+++ b/kernel/futex.c
@@ -61,6 +61,7 @@
#include <linux/nsproxy.h>
#include <linux/ptrace.h>
#include <linux/sched/rt.h>
+#include <linux/sched/wake_q.h>
#include <linux/hugetlb.h>
#include <linux/freezer.h>
#include <linux/bootmem.h>
diff --git a/kernel/locking/mutex.c b/kernel/locking/mutex.c
index ad2d9e22697b..57f6311e2405 100644
--- a/kernel/locking/mutex.c
+++ b/kernel/locking/mutex.c
@@ -21,6 +21,7 @@
#include <linux/ww_mutex.h>
#include <linux/sched.h>
#include <linux/sched/rt.h>
+#include <linux/sched/wake_q.h>
#include <linux/export.h>
#include <linux/spinlock.h>
#include <linux/interrupt.h>
diff --git a/kernel/locking/rtmutex.c b/kernel/locking/rtmutex.c
index d340be3a488f..d4f798491361 100644
--- a/kernel/locking/rtmutex.c
+++ b/kernel/locking/rtmutex.c
@@ -15,6 +15,7 @@
#include <linux/sched.h>
#include <linux/sched/rt.h>
#include <linux/sched/deadline.h>
+#include <linux/sched/wake_q.h>
#include <linux/timer.h>
#include "rtmutex_common.h"
diff --git a/kernel/locking/rtmutex_common.h b/kernel/locking/rtmutex_common.h
index 990134617b4c..856dfff5c33a 100644
--- a/kernel/locking/rtmutex_common.h
+++ b/kernel/locking/rtmutex_common.h
@@ -13,6 +13,7 @@
#define __KERNEL_RTMUTEX_COMMON_H
#include <linux/rtmutex.h>
+#include <linux/sched/wake_q.h>
/*
* This is the control structure for tasks blocked on a rt_mutex,
diff --git a/kernel/locking/rwsem-xadd.c b/kernel/locking/rwsem-xadd.c
index 2ad8d8dc3bb1..4fe8d8ad4396 100644
--- a/kernel/locking/rwsem-xadd.c
+++ b/kernel/locking/rwsem-xadd.c
@@ -10,10 +10,11 @@
* and Davidlohr Bueso <davidlohr@hp.com>. Based on mutexes.
*/
#include <linux/rwsem.h>
-#include <linux/sched.h>
#include <linux/init.h>
#include <linux/export.h>
+#include <linux/sched.h>
#include <linux/sched/rt.h>
+#include <linux/sched/wake_q.h>
#include <linux/osq_lock.h>
#include "rwsem.h"
diff --git a/kernel/sched/core.c b/kernel/sched/core.c
index e4aa470ed454..fed9625fa954 100644
--- a/kernel/sched/core.c
+++ b/kernel/sched/core.c
@@ -426,7 +426,7 @@ static bool set_nr_if_polling(struct task_struct *p)
void wake_q_add(struct wake_q_head *head, struct task_struct *task)
{
- struct wake_q_node *node = &task->wake_q;
+ struct wake_q_node *node = (void *)&task->wake_q;
/*
* Atomically grab the task, if ->wake_q is !nil already it means
@@ -455,11 +455,11 @@ void wake_up_q(struct wake_q_head *head)
while (node != WAKE_Q_TAIL) {
struct task_struct *task;
- task = container_of(node, struct task_struct, wake_q);
+ task = container_of((void *)node, struct task_struct, wake_q);
BUG_ON(!task);
/* Task can safely be re-inserted now: */
node = node->next;
- task->wake_q.next = NULL;
+ task->wake_q = NULL;
/*
* wake_up_process() implies a wmb() to pair with the queueing
diff --git a/kernel/sched/sched.h b/kernel/sched/sched.h
index 319fcf80930c..ebb66cdeff70 100644
--- a/kernel/sched/sched.h
+++ b/kernel/sched/sched.h
@@ -3,6 +3,7 @@
#include <linux/sched/sysctl.h>
#include <linux/sched/topology.h>
#include <linux/sched/rt.h>
+#include <linux/sched/wake_q.h>
#include <linux/u64_stats_sync.h>
#include <linux/sched/deadline.h>
#include <linux/kernel_stat.h>
--
2.7.4
^ permalink raw reply related [flat|nested] 119+ messages in thread
* [PATCH 10/89] sched/clock: Introduce <linux/sched/clock.h>
2017-02-06 13:28 [PATCH 00/89] Major reorganization of <linux/sched.h> Ingo Molnar
` (8 preceding siblings ...)
2017-02-06 13:28 ` [PATCH 09/89] sched/wake_q: Move the wake-queue types and interfaces from sched.h into <linux/sched/wake_q.h> Ingo Molnar
@ 2017-02-06 13:28 ` Ingo Molnar
2017-02-06 13:28 ` [PATCH 11/89] sched/headers, delayacct: Move the 'struct task_delay_info' definition from <linux/sched.h> to <linux/delayacct.h> Ingo Molnar
` (80 subsequent siblings)
90 siblings, 0 replies; 119+ messages in thread
From: Ingo Molnar @ 2017-02-06 13:28 UTC (permalink / raw)
To: linux-kernel
Cc: Andrew Morton, Linus Torvalds, Mike Galbraith, Oleg Nesterov,
Peter Zijlstra, Thomas Gleixner
Move the sched_clock interfaces into a separate header file, to reduce
the size of sched.h.
Include <linux/sched/clock.h> in all files that made use of one of the
sched_clock() related APIs.
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
arch/arm/mach-bcm/platsmp.c | 1 +
arch/arm/mach-omap2/pm-debug.c | 1 +
arch/arm/probes/kprobes/test-core.c | 1 +
arch/cris/kernel/time.c | 2 +-
arch/ia64/kernel/setup.c | 1 +
arch/microblaze/kernel/timer.c | 1 +
arch/mn10300/kernel/time.c | 1 +
arch/parisc/kernel/setup.c | 1 +
arch/parisc/kernel/time.c | 1 +
arch/powerpc/kernel/time.c | 1 +
arch/s390/kernel/time.c | 1 +
arch/sparc/kernel/ds.c | 1 +
arch/sparc/kernel/viohs.c | 1 +
arch/tile/kernel/time.c | 1 +
arch/x86/events/amd/ibs.c | 1 +
arch/x86/events/core.c | 1 +
arch/x86/kernel/cpu/amd.c | 1 +
arch/x86/kernel/cpu/centaur.c | 1 +
arch/x86/kernel/cpu/common.c | 1 +
arch/x86/kernel/cpu/cyrix.c | 1 +
arch/x86/kernel/cpu/intel.c | 1 +
arch/x86/kernel/cpu/transmeta.c | 1 +
arch/x86/kernel/kvmclock.c | 1 +
arch/x86/kernel/nmi.c | 1 +
arch/x86/kernel/tsc.c | 1 +
block/cfq-iosched.c | 1 +
drivers/acpi/apei/ghes.c | 1 +
drivers/clocksource/arm_arch_timer.c | 1 +
drivers/clocksource/pxa_timer.c | 1 +
drivers/clocksource/timer-digicolor.c | 1 +
drivers/cpuidle/cpuidle.c | 1 +
drivers/firmware/tegra/bpmp.c | 1 +
drivers/gpu/drm/i915/i915_gem_request.c | 2 ++
drivers/gpu/drm/i915/intel_drv.h | 1 +
drivers/md/bcache/bset.c | 1 +
drivers/md/bcache/btree.c | 1 +
drivers/md/bcache/sysfs.c | 1 +
drivers/md/bcache/util.c | 1 +
drivers/md/bcache/util.h | 1 +
drivers/md/bcache/writeback.c | 1 +
drivers/misc/cxl/native.c | 1 +
drivers/net/irda/pxaficp_ir.c | 1 +
drivers/perf/arm_pmu.c | 1 +
drivers/vhost/net.c | 1 +
include/linux/blkdev.h | 1 +
include/linux/sched.h | 100 ---------------------------------------------------
include/linux/sched/clock.h | 102 ++++++++++++++++++++++++++++++++++++++++++++++++++++
include/linux/skbuff.h | 1 +
include/net/busy_poll.h | 1 +
kernel/events/core.c | 1 +
kernel/locking/lockdep.c | 1 +
kernel/locking/qspinlock_stat.h | 1 +
kernel/printk/printk.c | 1 +
kernel/sched/clock.c | 1 +
kernel/sched/core.c | 1 +
kernel/sched/sched.h | 1 +
kernel/time/sched_clock.c | 1 +
kernel/time/tick-sched.c | 1 +
kernel/torture.c | 1 +
kernel/trace/ring_buffer.c | 1 +
kernel/trace/trace_clock.c | 1 +
kernel/trace/trace_hwlat.c | 1 +
kernel/trace/trace_output.c | 1 +
kernel/watchdog.c | 1 +
lib/plist.c | 1 +
net/ipv4/tcp_cdg.c | 2 ++
66 files changed, 168 insertions(+), 101 deletions(-)
diff --git a/arch/arm/mach-bcm/platsmp.c b/arch/arm/mach-bcm/platsmp.c
index 3ac3a9bc663c..77860b401092 100644
--- a/arch/arm/mach-bcm/platsmp.c
+++ b/arch/arm/mach-bcm/platsmp.c
@@ -21,6 +21,7 @@
#include <linux/of.h>
#include <linux/of_address.h>
#include <linux/sched.h>
+#include <linux/sched/clock.h>
#include <linux/smp.h>
#include <asm/cacheflush.h>
diff --git a/arch/arm/mach-omap2/pm-debug.c b/arch/arm/mach-omap2/pm-debug.c
index 003a6cb248be..5c46ea6756d7 100644
--- a/arch/arm/mach-omap2/pm-debug.c
+++ b/arch/arm/mach-omap2/pm-debug.c
@@ -21,6 +21,7 @@
#include <linux/kernel.h>
#include <linux/sched.h>
+#include <linux/sched/clock.h>
#include <linux/clk.h>
#include <linux/err.h>
#include <linux/io.h>
diff --git a/arch/arm/probes/kprobes/test-core.c b/arch/arm/probes/kprobes/test-core.c
index 9775de22e2ff..c893726aa52d 100644
--- a/arch/arm/probes/kprobes/test-core.c
+++ b/arch/arm/probes/kprobes/test-core.c
@@ -203,6 +203,7 @@
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/slab.h>
+#include <linux/sched/clock.h>
#include <linux/kprobes.h>
#include <linux/errno.h>
#include <linux/stddef.h>
diff --git a/arch/cris/kernel/time.c b/arch/cris/kernel/time.c
index 2dda6da71521..bc562cf511a6 100644
--- a/arch/cris/kernel/time.c
+++ b/arch/cris/kernel/time.c
@@ -29,7 +29,7 @@
#include <linux/timex.h>
#include <linux/init.h>
#include <linux/profile.h>
-#include <linux/sched.h> /* just for sched_clock() - funny that */
+#include <linux/sched/clock.h>
#define D(x)
diff --git a/arch/ia64/kernel/setup.c b/arch/ia64/kernel/setup.c
index c483ece3eb84..36f8361674f3 100644
--- a/arch/ia64/kernel/setup.c
+++ b/arch/ia64/kernel/setup.c
@@ -32,6 +32,7 @@
#include <linux/kernel.h>
#include <linux/reboot.h>
#include <linux/sched.h>
+#include <linux/sched/clock.h>
#include <linux/seq_file.h>
#include <linux/string.h>
#include <linux/threads.h>
diff --git a/arch/microblaze/kernel/timer.c b/arch/microblaze/kernel/timer.c
index 1d6fad50fa76..999066192715 100644
--- a/arch/microblaze/kernel/timer.c
+++ b/arch/microblaze/kernel/timer.c
@@ -12,6 +12,7 @@
#include <linux/interrupt.h>
#include <linux/delay.h>
#include <linux/sched.h>
+#include <linux/sched/clock.h>
#include <linux/sched_clock.h>
#include <linux/clk.h>
#include <linux/clockchips.h>
diff --git a/arch/mn10300/kernel/time.c b/arch/mn10300/kernel/time.c
index 67c6416a58f8..06b83b17c5f1 100644
--- a/arch/mn10300/kernel/time.c
+++ b/arch/mn10300/kernel/time.c
@@ -10,6 +10,7 @@
* 2 of the Licence, or (at your option) any later version.
*/
#include <linux/sched.h>
+#include <linux/sched/clock.h>
#include <linux/kernel.h>
#include <linux/interrupt.h>
#include <linux/time.h>
diff --git a/arch/parisc/kernel/setup.c b/arch/parisc/kernel/setup.c
index 068ed3607bac..dee6f9d6a153 100644
--- a/arch/parisc/kernel/setup.c
+++ b/arch/parisc/kernel/setup.c
@@ -37,6 +37,7 @@
#include <linux/proc_fs.h>
#include <linux/export.h>
#include <linux/sched.h>
+#include <linux/sched/clock.h>
#include <asm/processor.h>
#include <asm/sections.h>
diff --git a/arch/parisc/kernel/time.c b/arch/parisc/kernel/time.c
index 1e22f981cd81..89421df70160 100644
--- a/arch/parisc/kernel/time.c
+++ b/arch/parisc/kernel/time.c
@@ -14,6 +14,7 @@
#include <linux/module.h>
#include <linux/rtc.h>
#include <linux/sched.h>
+#include <linux/sched/clock.h>
#include <linux/sched_clock.h>
#include <linux/kernel.h>
#include <linux/param.h>
diff --git a/arch/powerpc/kernel/time.c b/arch/powerpc/kernel/time.c
index 14e485525e31..e637298649c5 100644
--- a/arch/powerpc/kernel/time.c
+++ b/arch/powerpc/kernel/time.c
@@ -34,6 +34,7 @@
#include <linux/errno.h>
#include <linux/export.h>
#include <linux/sched.h>
+#include <linux/sched/clock.h>
#include <linux/kernel.h>
#include <linux/param.h>
#include <linux/string.h>
diff --git a/arch/s390/kernel/time.c b/arch/s390/kernel/time.c
index 52949df88529..db5689543d7c 100644
--- a/arch/s390/kernel/time.c
+++ b/arch/s390/kernel/time.c
@@ -18,6 +18,7 @@
#include <linux/errno.h>
#include <linux/module.h>
#include <linux/sched.h>
+#include <linux/sched/clock.h>
#include <linux/kernel.h>
#include <linux/param.h>
#include <linux/string.h>
diff --git a/arch/sparc/kernel/ds.c b/arch/sparc/kernel/ds.c
index f87a55d77094..b542cc7c8d94 100644
--- a/arch/sparc/kernel/ds.c
+++ b/arch/sparc/kernel/ds.c
@@ -9,6 +9,7 @@
#include <linux/string.h>
#include <linux/slab.h>
#include <linux/sched.h>
+#include <linux/sched/clock.h>
#include <linux/delay.h>
#include <linux/mutex.h>
#include <linux/kthread.h>
diff --git a/arch/sparc/kernel/viohs.c b/arch/sparc/kernel/viohs.c
index 526fcb5d8ce9..b30b30ab3ddd 100644
--- a/arch/sparc/kernel/viohs.c
+++ b/arch/sparc/kernel/viohs.c
@@ -8,6 +8,7 @@
#include <linux/string.h>
#include <linux/delay.h>
#include <linux/sched.h>
+#include <linux/sched/clock.h>
#include <linux/slab.h>
#include <asm/ldc.h>
diff --git a/arch/tile/kernel/time.c b/arch/tile/kernel/time.c
index c9357012b1c8..5bd4e88c7c60 100644
--- a/arch/tile/kernel/time.c
+++ b/arch/tile/kernel/time.c
@@ -20,6 +20,7 @@
#include <linux/clockchips.h>
#include <linux/hardirq.h>
#include <linux/sched.h>
+#include <linux/sched/clock.h>
#include <linux/smp.h>
#include <linux/delay.h>
#include <linux/module.h>
diff --git a/arch/x86/events/amd/ibs.c b/arch/x86/events/amd/ibs.c
index 496e60391fac..786fd875de92 100644
--- a/arch/x86/events/amd/ibs.c
+++ b/arch/x86/events/amd/ibs.c
@@ -12,6 +12,7 @@
#include <linux/pci.h>
#include <linux/ptrace.h>
#include <linux/syscore_ops.h>
+#include <linux/sched/clock.h>
#include <asm/apic.h>
diff --git a/arch/x86/events/core.c b/arch/x86/events/core.c
index 1635c0c8df23..2ecc0e97772b 100644
--- a/arch/x86/events/core.c
+++ b/arch/x86/events/core.c
@@ -21,6 +21,7 @@
#include <linux/init.h>
#include <linux/kdebug.h>
#include <linux/sched.h>
+#include <linux/sched/clock.h>
#include <linux/uaccess.h>
#include <linux/slab.h>
#include <linux/cpu.h>
diff --git a/arch/x86/kernel/cpu/amd.c b/arch/x86/kernel/cpu/amd.c
index 80e657e89eed..f76c86d5eb03 100644
--- a/arch/x86/kernel/cpu/amd.c
+++ b/arch/x86/kernel/cpu/amd.c
@@ -5,6 +5,7 @@
#include <linux/io.h>
#include <linux/sched.h>
+#include <linux/sched/clock.h>
#include <linux/random.h>
#include <asm/processor.h>
#include <asm/apic.h>
diff --git a/arch/x86/kernel/cpu/centaur.c b/arch/x86/kernel/cpu/centaur.c
index 2c234a6d94c4..adc0ebd8bed0 100644
--- a/arch/x86/kernel/cpu/centaur.c
+++ b/arch/x86/kernel/cpu/centaur.c
@@ -1,5 +1,6 @@
#include <linux/sched.h>
+#include <linux/sched/clock.h>
#include <asm/cpufeature.h>
#include <asm/e820.h>
diff --git a/arch/x86/kernel/cpu/common.c b/arch/x86/kernel/cpu/common.c
index 0bdb1ab7d17c..79f25eca10eb 100644
--- a/arch/x86/kernel/cpu/common.c
+++ b/arch/x86/kernel/cpu/common.c
@@ -8,6 +8,7 @@
#include <linux/ctype.h>
#include <linux/delay.h>
#include <linux/sched.h>
+#include <linux/sched/clock.h>
#include <linux/init.h>
#include <linux/kprobes.h>
#include <linux/kgdb.h>
diff --git a/arch/x86/kernel/cpu/cyrix.c b/arch/x86/kernel/cpu/cyrix.c
index 47416f959a48..0a3bc19de017 100644
--- a/arch/x86/kernel/cpu/cyrix.c
+++ b/arch/x86/kernel/cpu/cyrix.c
@@ -10,6 +10,7 @@
#include <asm/tsc.h>
#include <asm/cpufeature.h>
#include <linux/sched.h>
+#include <linux/sched/clock.h>
#include "cpu.h"
diff --git a/arch/x86/kernel/cpu/intel.c b/arch/x86/kernel/cpu/intel.c
index 026c728d6ba7..caf2b0904269 100644
--- a/arch/x86/kernel/cpu/intel.c
+++ b/arch/x86/kernel/cpu/intel.c
@@ -4,6 +4,7 @@
#include <linux/bitops.h>
#include <linux/smp.h>
#include <linux/sched.h>
+#include <linux/sched/clock.h>
#include <linux/thread_info.h>
#include <linux/init.h>
#include <linux/uaccess.h>
diff --git a/arch/x86/kernel/cpu/transmeta.c b/arch/x86/kernel/cpu/transmeta.c
index c1ea5b999839..8457b4978668 100644
--- a/arch/x86/kernel/cpu/transmeta.c
+++ b/arch/x86/kernel/cpu/transmeta.c
@@ -1,5 +1,6 @@
#include <linux/kernel.h>
#include <linux/sched.h>
+#include <linux/sched/clock.h>
#include <linux/mm.h>
#include <asm/cpufeature.h>
#include <asm/msr.h>
diff --git a/arch/x86/kernel/kvmclock.c b/arch/x86/kernel/kvmclock.c
index 542710b99f52..278de4f1c552 100644
--- a/arch/x86/kernel/kvmclock.c
+++ b/arch/x86/kernel/kvmclock.c
@@ -25,6 +25,7 @@
#include <linux/hardirq.h>
#include <linux/memblock.h>
#include <linux/sched.h>
+#include <linux/sched/clock.h>
#include <asm/x86_init.h>
#include <asm/reboot.h>
diff --git a/arch/x86/kernel/nmi.c b/arch/x86/kernel/nmi.c
index bfe4d6c96fbd..d17b1a940add 100644
--- a/arch/x86/kernel/nmi.c
+++ b/arch/x86/kernel/nmi.c
@@ -20,6 +20,7 @@
#include <linux/ratelimit.h>
#include <linux/slab.h>
#include <linux/export.h>
+#include <linux/sched/clock.h>
#if defined(CONFIG_EDAC)
#include <linux/edac.h>
diff --git a/arch/x86/kernel/tsc.c b/arch/x86/kernel/tsc.c
index cb60bbe093b2..b0920fce2103 100644
--- a/arch/x86/kernel/tsc.c
+++ b/arch/x86/kernel/tsc.c
@@ -2,6 +2,7 @@
#include <linux/kernel.h>
#include <linux/sched.h>
+#include <linux/sched/clock.h>
#include <linux/init.h>
#include <linux/export.h>
#include <linux/timer.h>
diff --git a/block/cfq-iosched.c b/block/cfq-iosched.c
index c73a6fcaeb9d..029e55f64356 100644
--- a/block/cfq-iosched.c
+++ b/block/cfq-iosched.c
@@ -8,6 +8,7 @@
*/
#include <linux/module.h>
#include <linux/slab.h>
+#include <linux/sched/clock.h>
#include <linux/blkdev.h>
#include <linux/elevator.h>
#include <linux/ktime.h>
diff --git a/drivers/acpi/apei/ghes.c b/drivers/acpi/apei/ghes.c
index e53bef6cf53c..b192b42a8351 100644
--- a/drivers/acpi/apei/ghes.c
+++ b/drivers/acpi/apei/ghes.c
@@ -44,6 +44,7 @@
#include <linux/pci.h>
#include <linux/aer.h>
#include <linux/nmi.h>
+#include <linux/sched/clock.h>
#include <acpi/ghes.h>
#include <acpi/apei.h>
diff --git a/drivers/clocksource/arm_arch_timer.c b/drivers/clocksource/arm_arch_timer.c
index 4c8c3fb2e8b2..ab498df88471 100644
--- a/drivers/clocksource/arm_arch_timer.c
+++ b/drivers/clocksource/arm_arch_timer.c
@@ -24,6 +24,7 @@
#include <linux/of_address.h>
#include <linux/io.h>
#include <linux/slab.h>
+#include <linux/sched/clock.h>
#include <linux/sched_clock.h>
#include <linux/acpi.h>
diff --git a/drivers/clocksource/pxa_timer.c b/drivers/clocksource/pxa_timer.c
index 9cae38eebec2..1c24de215c14 100644
--- a/drivers/clocksource/pxa_timer.c
+++ b/drivers/clocksource/pxa_timer.c
@@ -19,6 +19,7 @@
#include <linux/clockchips.h>
#include <linux/of_address.h>
#include <linux/of_irq.h>
+#include <linux/sched/clock.h>
#include <linux/sched_clock.h>
#include <clocksource/pxa.h>
diff --git a/drivers/clocksource/timer-digicolor.c b/drivers/clocksource/timer-digicolor.c
index 10318cc99c0e..e9f50d289362 100644
--- a/drivers/clocksource/timer-digicolor.c
+++ b/drivers/clocksource/timer-digicolor.c
@@ -31,6 +31,7 @@
#include <linux/interrupt.h>
#include <linux/irq.h>
#include <linux/irqreturn.h>
+#include <linux/sched/clock.h>
#include <linux/sched_clock.h>
#include <linux/of.h>
#include <linux/of_address.h>
diff --git a/drivers/cpuidle/cpuidle.c b/drivers/cpuidle/cpuidle.c
index 62810ff3b00f..548b90be7685 100644
--- a/drivers/cpuidle/cpuidle.c
+++ b/drivers/cpuidle/cpuidle.c
@@ -12,6 +12,7 @@
#include <linux/kernel.h>
#include <linux/mutex.h>
#include <linux/sched.h>
+#include <linux/sched/clock.h>
#include <linux/notifier.h>
#include <linux/pm_qos.h>
#include <linux/cpu.h>
diff --git a/drivers/firmware/tegra/bpmp.c b/drivers/firmware/tegra/bpmp.c
index 4ff02d310868..84e4c9a58a0c 100644
--- a/drivers/firmware/tegra/bpmp.c
+++ b/drivers/firmware/tegra/bpmp.c
@@ -19,6 +19,7 @@
#include <linux/of_device.h>
#include <linux/platform_device.h>
#include <linux/semaphore.h>
+#include <linux/sched/clock.h>
#include <soc/tegra/bpmp.h>
#include <soc/tegra/bpmp-abi.h>
diff --git a/drivers/gpu/drm/i915/i915_gem_request.c b/drivers/gpu/drm/i915/i915_gem_request.c
index b8f403faadbb..ec024f6e66f9 100644
--- a/drivers/gpu/drm/i915/i915_gem_request.c
+++ b/drivers/gpu/drm/i915/i915_gem_request.c
@@ -24,6 +24,8 @@
#include <linux/prefetch.h>
#include <linux/dma-fence-array.h>
+#include <linux/sched.h>
+#include <linux/sched/clock.h>
#include "i915_drv.h"
diff --git a/drivers/gpu/drm/i915/intel_drv.h b/drivers/gpu/drm/i915/intel_drv.h
index cd72ae171eeb..adffaada9427 100644
--- a/drivers/gpu/drm/i915/intel_drv.h
+++ b/drivers/gpu/drm/i915/intel_drv.h
@@ -28,6 +28,7 @@
#include <linux/async.h>
#include <linux/i2c.h>
#include <linux/hdmi.h>
+#include <linux/sched/clock.h>
#include <drm/i915_drm.h>
#include "i915_drv.h"
#include <drm/drm_crtc.h>
diff --git a/drivers/md/bcache/bset.c b/drivers/md/bcache/bset.c
index 646fe85261c1..18526d44688d 100644
--- a/drivers/md/bcache/bset.c
+++ b/drivers/md/bcache/bset.c
@@ -11,6 +11,7 @@
#include "bset.h"
#include <linux/console.h>
+#include <linux/sched/clock.h>
#include <linux/random.h>
#include <linux/prefetch.h>
diff --git a/drivers/md/bcache/btree.c b/drivers/md/bcache/btree.c
index a43eedd5804d..384559af310e 100644
--- a/drivers/md/bcache/btree.c
+++ b/drivers/md/bcache/btree.c
@@ -32,6 +32,7 @@
#include <linux/prefetch.h>
#include <linux/random.h>
#include <linux/rcupdate.h>
+#include <linux/sched/clock.h>
#include <trace/events/bcache.h>
/*
diff --git a/drivers/md/bcache/sysfs.c b/drivers/md/bcache/sysfs.c
index b3ff57d61dde..f90f13616980 100644
--- a/drivers/md/bcache/sysfs.c
+++ b/drivers/md/bcache/sysfs.c
@@ -13,6 +13,7 @@
#include <linux/blkdev.h>
#include <linux/sort.h>
+#include <linux/sched/clock.h>
static const char * const cache_replacement_policies[] = {
"lru",
diff --git a/drivers/md/bcache/util.c b/drivers/md/bcache/util.c
index dde6172f3f10..8c3a938f4bf0 100644
--- a/drivers/md/bcache/util.c
+++ b/drivers/md/bcache/util.c
@@ -12,6 +12,7 @@
#include <linux/module.h>
#include <linux/seq_file.h>
#include <linux/types.h>
+#include <linux/sched/clock.h>
#include "util.h"
diff --git a/drivers/md/bcache/util.h b/drivers/md/bcache/util.h
index cf2cbc211d83..a126919ed102 100644
--- a/drivers/md/bcache/util.h
+++ b/drivers/md/bcache/util.h
@@ -6,6 +6,7 @@
#include <linux/errno.h>
#include <linux/blkdev.h>
#include <linux/kernel.h>
+#include <linux/sched/clock.h>
#include <linux/llist.h>
#include <linux/ratelimit.h>
#include <linux/vmalloc.h>
diff --git a/drivers/md/bcache/writeback.c b/drivers/md/bcache/writeback.c
index 69e1ae59cab8..6ac2e48b9235 100644
--- a/drivers/md/bcache/writeback.c
+++ b/drivers/md/bcache/writeback.c
@@ -13,6 +13,7 @@
#include <linux/delay.h>
#include <linux/kthread.h>
+#include <linux/sched/clock.h>
#include <trace/events/bcache.h>
/* Rate limiting */
diff --git a/drivers/misc/cxl/native.c b/drivers/misc/cxl/native.c
index 09505f432eda..7ae710585267 100644
--- a/drivers/misc/cxl/native.c
+++ b/drivers/misc/cxl/native.c
@@ -9,6 +9,7 @@
#include <linux/spinlock.h>
#include <linux/sched.h>
+#include <linux/sched/clock.h>
#include <linux/slab.h>
#include <linux/mutex.h>
#include <linux/mm.h>
diff --git a/drivers/net/irda/pxaficp_ir.c b/drivers/net/irda/pxaficp_ir.c
index 6e8f616be48e..1dba16bc7f8d 100644
--- a/drivers/net/irda/pxaficp_ir.c
+++ b/drivers/net/irda/pxaficp_ir.c
@@ -24,6 +24,7 @@
#include <linux/dma/pxa-dma.h>
#include <linux/gpio.h>
#include <linux/slab.h>
+#include <linux/sched/clock.h>
#include <net/irda/irda.h>
#include <net/irda/irmod.h>
diff --git a/drivers/perf/arm_pmu.c b/drivers/perf/arm_pmu.c
index 6d9335865880..9612b84bc3e0 100644
--- a/drivers/perf/arm_pmu.c
+++ b/drivers/perf/arm_pmu.c
@@ -20,6 +20,7 @@
#include <linux/perf/arm_pmu.h>
#include <linux/platform_device.h>
#include <linux/slab.h>
+#include <linux/sched/clock.h>
#include <linux/spinlock.h>
#include <linux/irq.h>
#include <linux/irqdesc.h>
diff --git a/drivers/vhost/net.c b/drivers/vhost/net.c
index 5dc34653274a..b9deca75ec7d 100644
--- a/drivers/vhost/net.c
+++ b/drivers/vhost/net.c
@@ -17,6 +17,7 @@
#include <linux/workqueue.h>
#include <linux/file.h>
#include <linux/slab.h>
+#include <linux/sched/clock.h>
#include <linux/vmalloc.h>
#include <linux/net.h>
diff --git a/include/linux/blkdev.h b/include/linux/blkdev.h
index 1ca8e8fd1078..a3100298e10b 100644
--- a/include/linux/blkdev.h
+++ b/include/linux/blkdev.h
@@ -2,6 +2,7 @@
#define _LINUX_BLKDEV_H
#include <linux/sched.h>
+#include <linux/sched/clock.h>
#ifdef CONFIG_BLOCK
diff --git a/include/linux/sched.h b/include/linux/sched.h
index e973a0f5550c..4b49d159f4d5 100644
--- a/include/linux/sched.h
+++ b/include/linux/sched.h
@@ -2201,103 +2201,6 @@ static inline void calc_load_exit_idle(void) { }
#define cpu_relax_yield() cpu_relax()
#endif
-/*
- * Do not use outside of architecture code which knows its limitations.
- *
- * sched_clock() has no promise of monotonicity or bounded drift between
- * CPUs, use (which you should not) requires disabling IRQs.
- *
- * Please use one of the three interfaces below.
- */
-extern unsigned long long notrace sched_clock(void);
-/*
- * See the comment in kernel/sched/clock.c
- */
-extern u64 running_clock(void);
-extern u64 sched_clock_cpu(int cpu);
-
-
-extern void sched_clock_init(void);
-
-#ifndef CONFIG_HAVE_UNSTABLE_SCHED_CLOCK
-static inline void sched_clock_init_late(void)
-{
-}
-
-static inline void sched_clock_tick(void)
-{
-}
-
-static inline void clear_sched_clock_stable(void)
-{
-}
-
-static inline void sched_clock_idle_sleep_event(void)
-{
-}
-
-static inline void sched_clock_idle_wakeup_event(u64 delta_ns)
-{
-}
-
-static inline u64 cpu_clock(int cpu)
-{
- return sched_clock();
-}
-
-static inline u64 local_clock(void)
-{
- return sched_clock();
-}
-#else
-extern void sched_clock_init_late(void);
-/*
- * Architectures can set this to 1 if they have specified
- * CONFIG_HAVE_UNSTABLE_SCHED_CLOCK in their arch Kconfig,
- * but then during bootup it turns out that sched_clock()
- * is reliable after all:
- */
-extern int sched_clock_stable(void);
-extern void clear_sched_clock_stable(void);
-
-extern void sched_clock_tick(void);
-extern void sched_clock_idle_sleep_event(void);
-extern void sched_clock_idle_wakeup_event(u64 delta_ns);
-
-/*
- * As outlined in clock.c, provides a fast, high resolution, nanosecond
- * time source that is monotonic per cpu argument and has bounded drift
- * between cpus.
- *
- * ######################### BIG FAT WARNING ##########################
- * # when comparing cpu_clock(i) to cpu_clock(j) for i != j, time can #
- * # go backwards !! #
- * ####################################################################
- */
-static inline u64 cpu_clock(int cpu)
-{
- return sched_clock_cpu(cpu);
-}
-
-static inline u64 local_clock(void)
-{
- return sched_clock_cpu(raw_smp_processor_id());
-}
-#endif
-
-#ifdef CONFIG_IRQ_TIME_ACCOUNTING
-/*
- * An i/f to runtime opt-in for irq time accounting based off of sched_clock.
- * The reason for this explicit opt-in is not to have perf penalty with
- * slow sched_clocks.
- */
-extern void enable_sched_clock_irqtime(void);
-extern void disable_sched_clock_irqtime(void);
-#else
-static inline void enable_sched_clock_irqtime(void) {}
-static inline void disable_sched_clock_irqtime(void) {}
-#endif
-
extern unsigned long long
task_sched_runtime(struct task_struct *task);
@@ -2308,9 +2211,6 @@ extern void sched_exec(void);
#define sched_exec() {}
#endif
-extern void sched_clock_idle_sleep_event(void);
-extern void sched_clock_idle_wakeup_event(u64 delta_ns);
-
#ifdef CONFIG_HOTPLUG_CPU
extern void idle_task_exit(void);
#else
diff --git a/include/linux/sched/clock.h b/include/linux/sched/clock.h
new file mode 100644
index 000000000000..18677fc2ffb3
--- /dev/null
+++ b/include/linux/sched/clock.h
@@ -0,0 +1,102 @@
+#ifndef _LINUX_SCHED_CLOCK_H
+#define _LINUX_SCHED_CLOCK_H
+
+/*
+ * Do not use outside of architecture code which knows its limitations.
+ *
+ * sched_clock() has no promise of monotonicity or bounded drift between
+ * CPUs, use (which you should not) requires disabling IRQs.
+ *
+ * Please use one of the three interfaces below.
+ */
+extern unsigned long long notrace sched_clock(void);
+
+/*
+ * See the comment in kernel/sched/clock.c
+ */
+extern u64 running_clock(void);
+extern u64 sched_clock_cpu(int cpu);
+
+
+extern void sched_clock_init(void);
+
+#ifndef CONFIG_HAVE_UNSTABLE_SCHED_CLOCK
+static inline void sched_clock_init_late(void)
+{
+}
+
+static inline void sched_clock_tick(void)
+{
+}
+
+static inline void clear_sched_clock_stable(void)
+{
+}
+
+static inline void sched_clock_idle_sleep_event(void)
+{
+}
+
+static inline void sched_clock_idle_wakeup_event(u64 delta_ns)
+{
+}
+
+static inline u64 cpu_clock(int cpu)
+{
+ return sched_clock();
+}
+
+static inline u64 local_clock(void)
+{
+ return sched_clock();
+}
+#else
+extern void sched_clock_init_late(void);
+/*
+ * Architectures can set this to 1 if they have specified
+ * CONFIG_HAVE_UNSTABLE_SCHED_CLOCK in their arch Kconfig,
+ * but then during bootup it turns out that sched_clock()
+ * is reliable after all:
+ */
+extern int sched_clock_stable(void);
+extern void clear_sched_clock_stable(void);
+
+extern void sched_clock_tick(void);
+extern void sched_clock_idle_sleep_event(void);
+extern void sched_clock_idle_wakeup_event(u64 delta_ns);
+
+/*
+ * As outlined in clock.c, provides a fast, high resolution, nanosecond
+ * time source that is monotonic per cpu argument and has bounded drift
+ * between cpus.
+ *
+ * ######################### BIG FAT WARNING ##########################
+ * # when comparing cpu_clock(i) to cpu_clock(j) for i != j, time can #
+ * # go backwards !! #
+ * ####################################################################
+ */
+static inline u64 cpu_clock(int cpu)
+{
+ return sched_clock_cpu(cpu);
+}
+
+static inline u64 local_clock(void)
+{
+ return sched_clock_cpu(raw_smp_processor_id());
+}
+#endif
+
+#ifdef CONFIG_IRQ_TIME_ACCOUNTING
+/*
+ * An i/f to runtime opt-in for irq time accounting based off of sched_clock.
+ * The reason for this explicit opt-in is not to have perf penalty with
+ * slow sched_clocks.
+ */
+extern void enable_sched_clock_irqtime(void);
+extern void disable_sched_clock_irqtime(void);
+#else
+static inline void enable_sched_clock_irqtime(void) {}
+static inline void disable_sched_clock_irqtime(void) {}
+#endif
+
+#endif /* _LINUX_SCHED_CLOCK_H */
diff --git a/include/linux/skbuff.h b/include/linux/skbuff.h
index a410715bbef8..1589935a235a 100644
--- a/include/linux/skbuff.h
+++ b/include/linux/skbuff.h
@@ -34,6 +34,7 @@
#include <linux/dma-mapping.h>
#include <linux/netdev_features.h>
#include <linux/sched.h>
+#include <linux/sched/clock.h>
#include <net/flow_dissector.h>
#include <linux/splice.h>
#include <linux/in6.h>
diff --git a/include/net/busy_poll.h b/include/net/busy_poll.h
index d73b849e29a6..ec624c6b0a03 100644
--- a/include/net/busy_poll.h
+++ b/include/net/busy_poll.h
@@ -25,6 +25,7 @@
#define _LINUX_NET_BUSY_POLL_H
#include <linux/netdevice.h>
+#include <linux/sched/clock.h>
#include <net/ip.h>
#ifdef CONFIG_NET_RX_BUSY_POLL
diff --git a/kernel/events/core.c b/kernel/events/core.c
index 110b38a58493..70c79475966d 100644
--- a/kernel/events/core.c
+++ b/kernel/events/core.c
@@ -46,6 +46,7 @@
#include <linux/filter.h>
#include <linux/namei.h>
#include <linux/parser.h>
+#include <linux/sched/clock.h>
#include "internal.h"
diff --git a/kernel/locking/lockdep.c b/kernel/locking/lockdep.c
index 7c38f8f3d97b..7c8baac9c6d3 100644
--- a/kernel/locking/lockdep.c
+++ b/kernel/locking/lockdep.c
@@ -28,6 +28,7 @@
#define DISABLE_BRANCH_PROFILING
#include <linux/mutex.h>
#include <linux/sched.h>
+#include <linux/sched/clock.h>
#include <linux/delay.h>
#include <linux/module.h>
#include <linux/proc_fs.h>
diff --git a/kernel/locking/qspinlock_stat.h b/kernel/locking/qspinlock_stat.h
index e852be4851fc..4a30ef63c607 100644
--- a/kernel/locking/qspinlock_stat.h
+++ b/kernel/locking/qspinlock_stat.h
@@ -63,6 +63,7 @@ enum qlock_stats {
*/
#include <linux/debugfs.h>
#include <linux/sched.h>
+#include <linux/sched/clock.h>
#include <linux/fs.h>
static const char * const qstat_names[qstat_num + 1] = {
diff --git a/kernel/printk/printk.c b/kernel/printk/printk.c
index 8b2696420abb..973b1d15d2ba 100644
--- a/kernel/printk/printk.c
+++ b/kernel/printk/printk.c
@@ -45,6 +45,7 @@
#include <linux/utsname.h>
#include <linux/ctype.h>
#include <linux/uio.h>
+#include <linux/sched/clock.h>
#include <linux/uaccess.h>
#include <asm/sections.h>
diff --git a/kernel/sched/clock.c b/kernel/sched/clock.c
index ad64efe41722..dd7817cdbf58 100644
--- a/kernel/sched/clock.c
+++ b/kernel/sched/clock.c
@@ -58,6 +58,7 @@
#include <linux/percpu.h>
#include <linux/ktime.h>
#include <linux/sched.h>
+#include <linux/sched/clock.h>
#include <linux/static_key.h>
#include <linux/workqueue.h>
#include <linux/compiler.h>
diff --git a/kernel/sched/core.c b/kernel/sched/core.c
index fed9625fa954..eb15f66244a0 100644
--- a/kernel/sched/core.c
+++ b/kernel/sched/core.c
@@ -6,6 +6,7 @@
* Copyright (C) 1991-2002 Linus Torvalds
*/
#include <linux/sched.h>
+#include <linux/sched/clock.h>
#include <linux/cpuset.h>
#include <linux/delayacct.h>
#include <linux/init_task.h>
diff --git a/kernel/sched/sched.h b/kernel/sched/sched.h
index ebb66cdeff70..f6c11f96e834 100644
--- a/kernel/sched/sched.h
+++ b/kernel/sched/sched.h
@@ -3,6 +3,7 @@
#include <linux/sched/sysctl.h>
#include <linux/sched/topology.h>
#include <linux/sched/rt.h>
+#include <linux/sched/clock.h>
#include <linux/sched/wake_q.h>
#include <linux/u64_stats_sync.h>
#include <linux/sched/deadline.h>
diff --git a/kernel/time/sched_clock.c b/kernel/time/sched_clock.c
index a26036d37a38..ea6b610c4c57 100644
--- a/kernel/time/sched_clock.c
+++ b/kernel/time/sched_clock.c
@@ -13,6 +13,7 @@
#include <linux/kernel.h>
#include <linux/moduleparam.h>
#include <linux/sched.h>
+#include <linux/sched/clock.h>
#include <linux/syscore_ops.h>
#include <linux/hrtimer.h>
#include <linux/sched_clock.h>
diff --git a/kernel/time/tick-sched.c b/kernel/time/tick-sched.c
index 74e0388cc88d..302e8090d412 100644
--- a/kernel/time/tick-sched.c
+++ b/kernel/time/tick-sched.c
@@ -19,6 +19,7 @@
#include <linux/percpu.h>
#include <linux/profile.h>
#include <linux/sched.h>
+#include <linux/sched/clock.h>
#include <linux/module.h>
#include <linux/irq_work.h>
#include <linux/posix-timers.h>
diff --git a/kernel/torture.c b/kernel/torture.c
index 0d887eb62856..f38b39557b45 100644
--- a/kernel/torture.c
+++ b/kernel/torture.c
@@ -30,6 +30,7 @@
#include <linux/smp.h>
#include <linux/interrupt.h>
#include <linux/sched.h>
+#include <linux/sched/clock.h>
#include <linux/atomic.h>
#include <linux/bitops.h>
#include <linux/completion.h>
diff --git a/kernel/trace/ring_buffer.c b/kernel/trace/ring_buffer.c
index a85739efcc30..96fc3c043ad6 100644
--- a/kernel/trace/ring_buffer.c
+++ b/kernel/trace/ring_buffer.c
@@ -6,6 +6,7 @@
#include <linux/trace_events.h>
#include <linux/ring_buffer.h>
#include <linux/trace_clock.h>
+#include <linux/sched/clock.h>
#include <linux/trace_seq.h>
#include <linux/spinlock.h>
#include <linux/irq_work.h>
diff --git a/kernel/trace/trace_clock.c b/kernel/trace/trace_clock.c
index 0f06532a755b..5fdc779f411d 100644
--- a/kernel/trace/trace_clock.c
+++ b/kernel/trace/trace_clock.c
@@ -18,6 +18,7 @@
#include <linux/module.h>
#include <linux/percpu.h>
#include <linux/sched.h>
+#include <linux/sched/clock.h>
#include <linux/ktime.h>
#include <linux/trace_clock.h>
diff --git a/kernel/trace/trace_hwlat.c b/kernel/trace/trace_hwlat.c
index af344a1bf0d0..d0c8151ff07e 100644
--- a/kernel/trace/trace_hwlat.c
+++ b/kernel/trace/trace_hwlat.c
@@ -44,6 +44,7 @@
#include <linux/uaccess.h>
#include <linux/cpumask.h>
#include <linux/delay.h>
+#include <linux/sched/clock.h>
#include "trace.h"
static struct trace_array *hwlat_trace;
diff --git a/kernel/trace/trace_output.c b/kernel/trace/trace_output.c
index 5d33a7352919..5a9dc5bf354b 100644
--- a/kernel/trace/trace_output.c
+++ b/kernel/trace/trace_output.c
@@ -8,6 +8,7 @@
#include <linux/module.h>
#include <linux/mutex.h>
#include <linux/ftrace.h>
+#include <linux/sched/clock.h>
#include "trace_output.h"
diff --git a/kernel/watchdog.c b/kernel/watchdog.c
index 63177be0159e..144d7b1b0364 100644
--- a/kernel/watchdog.c
+++ b/kernel/watchdog.c
@@ -21,6 +21,7 @@
#include <linux/sched/rt.h>
#include <linux/tick.h>
#include <linux/workqueue.h>
+#include <linux/sched/clock.h>
#include <asm/irq_regs.h>
#include <linux/kvm_para.h>
diff --git a/lib/plist.c b/lib/plist.c
index 3a30c53db061..199408f91057 100644
--- a/lib/plist.c
+++ b/lib/plist.c
@@ -175,6 +175,7 @@ void plist_requeue(struct plist_node *node, struct plist_head *head)
#ifdef CONFIG_DEBUG_PI_LIST
#include <linux/sched.h>
+#include <linux/sched/clock.h>
#include <linux/module.h>
#include <linux/init.h>
diff --git a/net/ipv4/tcp_cdg.c b/net/ipv4/tcp_cdg.c
index 35b280361cb2..50a0f3e51d5b 100644
--- a/net/ipv4/tcp_cdg.c
+++ b/net/ipv4/tcp_cdg.c
@@ -27,6 +27,8 @@
#include <linux/kernel.h>
#include <linux/random.h>
#include <linux/module.h>
+#include <linux/sched/clock.h>
+
#include <net/tcp.h>
#define HYSTART_ACK_TRAIN 1
--
2.7.4
^ permalink raw reply related [flat|nested] 119+ messages in thread
* [PATCH 11/89] sched/headers, delayacct: Move the 'struct task_delay_info' definition from <linux/sched.h> to <linux/delayacct.h>
2017-02-06 13:28 [PATCH 00/89] Major reorganization of <linux/sched.h> Ingo Molnar
` (9 preceding siblings ...)
2017-02-06 13:28 ` [PATCH 10/89] sched/clock: Introduce <linux/sched/clock.h> Ingo Molnar
@ 2017-02-06 13:28 ` Ingo Molnar
2017-02-06 18:16 ` Linus Torvalds
2017-02-06 13:28 ` [PATCH 12/89] sched/abi: Introduce <uapi/linux/sched/types.h> Ingo Molnar
` (79 subsequent siblings)
90 siblings, 1 reply; 119+ messages in thread
From: Ingo Molnar @ 2017-02-06 13:28 UTC (permalink / raw)
To: linux-kernel
Cc: Andrew Morton, Linus Torvalds, Mike Galbraith, Oleg Nesterov,
Peter Zijlstra, Thomas Gleixner
The 'struct task_delay_info' definition does not have to be in sched.h,
because task_struct only has a pointer to it.
So move it to <linux/delayacct.h> to reduce the size of <linux/sched.h>.
As an additional improvement make the type defined but empty in the
!CONFIG_TASK_DELAY_ACCT case - to eliminate the ugly #ifdef
around the task_struct field as well.
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
include/linux/delayacct.h | 38 ++++++++++++++++++++++++++++++++++++--
include/linux/sched.h | 37 ++-----------------------------------
2 files changed, 38 insertions(+), 37 deletions(-)
diff --git a/include/linux/delayacct.h b/include/linux/delayacct.h
index 00e60f79a9cc..a2192de5d428 100644
--- a/include/linux/delayacct.h
+++ b/include/linux/delayacct.h
@@ -18,8 +18,6 @@
#define _LINUX_DELAYACCT_H
#include <uapi/linux/taskstats.h>
-#include <linux/sched.h>
-#include <linux/slab.h>
/*
* Per-task flags relevant to delay accounting
@@ -29,8 +27,44 @@
#define DELAYACCT_PF_SWAPIN 0x00000001 /* I am doing a swapin */
#define DELAYACCT_PF_BLKIO 0x00000002 /* I am waiting on IO */
+struct task_delay_info {
#ifdef CONFIG_TASK_DELAY_ACCT
+ spinlock_t lock;
+ unsigned int flags; /* Private per-task flags */
+
+ /* For each stat XXX, add following, aligned appropriately
+ *
+ * struct timespec XXX_start, XXX_end;
+ * u64 XXX_delay;
+ * u32 XXX_count;
+ *
+ * Atomicity of updates to XXX_delay, XXX_count protected by
+ * single lock above (split into XXX_lock if contention is an issue).
+ */
+
+ /*
+ * XXX_count is incremented on every XXX operation, the delay
+ * associated with the operation is added to XXX_delay.
+ * XXX_delay contains the accumulated delay time in nanoseconds.
+ */
+ u64 blkio_start; /* Shared by blkio, swapin */
+ u64 blkio_delay; /* wait for sync block io completion */
+ u64 swapin_delay; /* wait for swapin block io completion */
+ u32 blkio_count; /* total count of the number of sync block */
+ /* io operations performed */
+ u32 swapin_count; /* total count of the number of swapin block */
+ /* io operations performed */
+
+ u64 freepages_start;
+ u64 freepages_delay; /* wait for memory reclaim */
+ u32 freepages_count; /* total count of memory reclaim */
+#endif
+};
+#include <linux/sched.h>
+#include <linux/slab.h>
+
+#ifdef CONFIG_TASK_DELAY_ACCT
extern int delayacct_on; /* Delay accounting turned on/off */
extern struct kmem_cache *delayacct_cache;
extern void delayacct_init(void);
diff --git a/include/linux/sched.h b/include/linux/sched.h
index 4b49d159f4d5..15971b1e3f57 100644
--- a/include/linux/sched.h
+++ b/include/linux/sched.h
@@ -901,39 +901,7 @@ struct sched_info {
};
#endif /* CONFIG_SCHED_INFO */
-#ifdef CONFIG_TASK_DELAY_ACCT
-struct task_delay_info {
- spinlock_t lock;
- unsigned int flags; /* Private per-task flags */
-
- /* For each stat XXX, add following, aligned appropriately
- *
- * struct timespec XXX_start, XXX_end;
- * u64 XXX_delay;
- * u32 XXX_count;
- *
- * Atomicity of updates to XXX_delay, XXX_count protected by
- * single lock above (split into XXX_lock if contention is an issue).
- */
-
- /*
- * XXX_count is incremented on every XXX operation, the delay
- * associated with the operation is added to XXX_delay.
- * XXX_delay contains the accumulated delay time in nanoseconds.
- */
- u64 blkio_start; /* Shared by blkio, swapin */
- u64 blkio_delay; /* wait for sync block io completion */
- u64 swapin_delay; /* wait for swapin block io completion */
- u32 blkio_count; /* total count of the number of sync block */
- /* io operations performed */
- u32 swapin_count; /* total count of the number of swapin block */
- /* io operations performed */
-
- u64 freepages_start;
- u64 freepages_delay; /* wait for memory reclaim */
- u32 freepages_count; /* total count of memory reclaim */
-};
-#endif /* CONFIG_TASK_DELAY_ACCT */
+struct task_delay_info;
static inline int sched_info_on(void)
{
@@ -1615,9 +1583,8 @@ struct task_struct {
struct page_frag task_frag;
-#ifdef CONFIG_TASK_DELAY_ACCT
struct task_delay_info *delays;
-#endif
+
#ifdef CONFIG_FAULT_INJECTION
int make_it_fail;
#endif
--
2.7.4
^ permalink raw reply related [flat|nested] 119+ messages in thread
* [PATCH 12/89] sched/abi: Introduce <uapi/linux/sched/types.h>
2017-02-06 13:28 [PATCH 00/89] Major reorganization of <linux/sched.h> Ingo Molnar
` (10 preceding siblings ...)
2017-02-06 13:28 ` [PATCH 11/89] sched/headers, delayacct: Move the 'struct task_delay_info' definition from <linux/sched.h> to <linux/delayacct.h> Ingo Molnar
@ 2017-02-06 13:28 ` Ingo Molnar
2017-02-06 13:28 ` [PATCH 13/89] sched/loadavg: Move loadavg related definitions from <linux/sched.h> to <linux/sched/loadavg.h> Ingo Molnar
` (78 subsequent siblings)
90 siblings, 0 replies; 119+ messages in thread
From: Ingo Molnar @ 2017-02-06 13:28 UTC (permalink / raw)
To: linux-kernel
Cc: Andrew Morton, Linus Torvalds, Mike Galbraith, Oleg Nesterov,
Peter Zijlstra, Thomas Gleixner
Move ABI types (struct sched_attr, struct sched_param, etc.) into a new UAPI header,
and use it from the code that needs it.
This further reduces the size of <linux/sched.h>.
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
arch/arm/common/bL_switcher.c | 2 +-
crypto/crypto_engine.c | 3 +-
drivers/acpi/acpi_pad.c | 2 +-
drivers/block/drbd/drbd_receiver.c | 3 +-
drivers/firmware/psci_checker.c | 1 +
drivers/gpu/drm/amd/scheduler/gpu_scheduler.c | 1 +
drivers/gpu/drm/i915/intel_breadcrumbs.c | 1 +
drivers/media/pci/ivtv/ivtv-driver.c | 1 +
drivers/mmc/core/sdio_irq.c | 1 +
drivers/spi/spi.c | 1 +
drivers/staging/android/ion/ion_heap.c | 1 +
drivers/thermal/intel_powerclamp.c | 1 +
drivers/tty/serial/sc16is7xx.c | 1 +
include/linux/sched.h | 70 ++------------------------------------------
include/uapi/linux/sched/types.h | 74 +++++++++++++++++++++++++++++++++++++++++++++++
kernel/irq/manage.c | 1 +
kernel/kthread.c | 1 +
kernel/locking/locktorture.c | 1 +
kernel/rcu/rcuperf.c | 1 +
kernel/rcu/rcutorture.c | 1 +
kernel/rcu/tree.c | 1 +
kernel/rcu/tree_plugin.h | 1 +
kernel/sched/core.c | 3 ++
kernel/sched/cpufreq_schedutil.c | 1 +
kernel/trace/ring_buffer_benchmark.c | 1 +
kernel/trace/trace_selftest.c | 1 +
kernel/watchdog.c | 1 +
27 files changed, 104 insertions(+), 73 deletions(-)
diff --git a/arch/arm/common/bL_switcher.c b/arch/arm/common/bL_switcher.c
index 46730017b3c5..c70c9a5f2a31 100644
--- a/arch/arm/common/bL_switcher.c
+++ b/arch/arm/common/bL_switcher.c
@@ -8,12 +8,12 @@
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*/
-
#include <linux/atomic.h>
#include <linux/init.h>
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/sched.h>
+#include <uapi/linux/sched/types.h>
#include <linux/interrupt.h>
#include <linux/cpu_pm.h>
#include <linux/cpu.h>
diff --git a/crypto/crypto_engine.c b/crypto/crypto_engine.c
index f1bf3418d968..d6d455550966 100644
--- a/crypto/crypto_engine.c
+++ b/crypto/crypto_engine.c
@@ -11,11 +11,12 @@
* any later version.
*
*/
-
#include <linux/err.h>
#include <linux/delay.h>
#include <crypto/engine.h>
#include <crypto/internal/hash.h>
+#include <uapi/linux/sched/types.h>
+
#include "internal.h"
#define CRYPTO_ENGINE_MAX_QLEN 10
diff --git a/drivers/acpi/acpi_pad.c b/drivers/acpi/acpi_pad.c
index eb76a4c10dbf..a8e76967d7c3 100644
--- a/drivers/acpi/acpi_pad.c
+++ b/drivers/acpi/acpi_pad.c
@@ -13,13 +13,13 @@
* more details.
*
*/
-
#include <linux/kernel.h>
#include <linux/cpumask.h>
#include <linux/module.h>
#include <linux/init.h>
#include <linux/types.h>
#include <linux/kthread.h>
+#include <uapi/linux/sched/types.h>
#include <linux/freezer.h>
#include <linux/cpu.h>
#include <linux/tick.h>
diff --git a/drivers/block/drbd/drbd_receiver.c b/drivers/block/drbd/drbd_receiver.c
index c7728dd77230..2f381be03517 100644
--- a/drivers/block/drbd/drbd_receiver.c
+++ b/drivers/block/drbd/drbd_receiver.c
@@ -21,8 +21,6 @@
along with drbd; see the file COPYING. If not, write to
the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
*/
-
-
#include <linux/module.h>
#include <linux/uaccess.h>
@@ -36,6 +34,7 @@
#include <linux/memcontrol.h>
#include <linux/mm_inline.h>
#include <linux/slab.h>
+#include <uapi/linux/sched/types.h>
#include <linux/pkt_sched.h>
#define __KERNEL_SYSCALLS__
#include <linux/unistd.h>
diff --git a/drivers/firmware/psci_checker.c b/drivers/firmware/psci_checker.c
index 29d58feaf675..6523ce962865 100644
--- a/drivers/firmware/psci_checker.c
+++ b/drivers/firmware/psci_checker.c
@@ -20,6 +20,7 @@
#include <linux/cpu_pm.h>
#include <linux/kernel.h>
#include <linux/kthread.h>
+#include <uapi/linux/sched/types.h>
#include <linux/module.h>
#include <linux/preempt.h>
#include <linux/psci.h>
diff --git a/drivers/gpu/drm/amd/scheduler/gpu_scheduler.c b/drivers/gpu/drm/amd/scheduler/gpu_scheduler.c
index 1bf83ed113b3..16f96563cd2b 100644
--- a/drivers/gpu/drm/amd/scheduler/gpu_scheduler.c
+++ b/drivers/gpu/drm/amd/scheduler/gpu_scheduler.c
@@ -24,6 +24,7 @@
#include <linux/kthread.h>
#include <linux/wait.h>
#include <linux/sched.h>
+#include <uapi/linux/sched/types.h>
#include <drm/drmP.h>
#include "gpu_scheduler.h"
diff --git a/drivers/gpu/drm/i915/intel_breadcrumbs.c b/drivers/gpu/drm/i915/intel_breadcrumbs.c
index c9c46a538edb..81ebc546fec6 100644
--- a/drivers/gpu/drm/i915/intel_breadcrumbs.c
+++ b/drivers/gpu/drm/i915/intel_breadcrumbs.c
@@ -23,6 +23,7 @@
*/
#include <linux/kthread.h>
+#include <uapi/linux/sched/types.h>
#include "i915_drv.h"
diff --git a/drivers/media/pci/ivtv/ivtv-driver.c b/drivers/media/pci/ivtv/ivtv-driver.c
index 0a3b80a4bd69..25ab5be28e01 100644
--- a/drivers/media/pci/ivtv/ivtv-driver.c
+++ b/drivers/media/pci/ivtv/ivtv-driver.c
@@ -59,6 +59,7 @@
#include <media/tveeprom.h>
#include <media/i2c/saa7115.h>
#include "tuner-xc2028.h"
+#include <uapi/linux/sched/types.h>
/* If you have already X v4l cards, then set this to X. This way
the device numbers stay matched. Example: you have a WinTV card
diff --git a/drivers/mmc/core/sdio_irq.c b/drivers/mmc/core/sdio_irq.c
index f1faf9acc007..ff3fa0d29544 100644
--- a/drivers/mmc/core/sdio_irq.c
+++ b/drivers/mmc/core/sdio_irq.c
@@ -15,6 +15,7 @@
#include <linux/kernel.h>
#include <linux/sched.h>
+#include <uapi/linux/sched/types.h>
#include <linux/kthread.h>
#include <linux/export.h>
#include <linux/wait.h>
diff --git a/drivers/spi/spi.c b/drivers/spi/spi.c
index 656dd3e3220c..3523f5808245 100644
--- a/drivers/spi/spi.c
+++ b/drivers/spi/spi.c
@@ -33,6 +33,7 @@
#include <linux/pm_domain.h>
#include <linux/export.h>
#include <linux/sched/rt.h>
+#include <uapi/linux/sched/types.h>
#include <linux/delay.h>
#include <linux/kthread.h>
#include <linux/ioport.h>
diff --git a/drivers/staging/android/ion/ion_heap.c b/drivers/staging/android/ion/ion_heap.c
index 4e5c0f17f579..c69d0bd53693 100644
--- a/drivers/staging/android/ion/ion_heap.c
+++ b/drivers/staging/android/ion/ion_heap.c
@@ -20,6 +20,7 @@
#include <linux/mm.h>
#include <linux/rtmutex.h>
#include <linux/sched.h>
+#include <uapi/linux/sched/types.h>
#include <linux/scatterlist.h>
#include <linux/vmalloc.h>
#include "ion.h"
diff --git a/drivers/thermal/intel_powerclamp.c b/drivers/thermal/intel_powerclamp.c
index df64692e9e64..88c887781eb0 100644
--- a/drivers/thermal/intel_powerclamp.c
+++ b/drivers/thermal/intel_powerclamp.c
@@ -50,6 +50,7 @@
#include <linux/debugfs.h>
#include <linux/seq_file.h>
#include <linux/sched/rt.h>
+#include <uapi/linux/sched/types.h>
#include <asm/nmi.h>
#include <asm/msr.h>
diff --git a/drivers/tty/serial/sc16is7xx.c b/drivers/tty/serial/sc16is7xx.c
index 793395451982..ca54ce074a5f 100644
--- a/drivers/tty/serial/sc16is7xx.c
+++ b/drivers/tty/serial/sc16is7xx.c
@@ -29,6 +29,7 @@
#include <linux/tty_flip.h>
#include <linux/spi/spi.h>
#include <linux/uaccess.h>
+#include <uapi/linux/sched/types.h>
#define SC16IS7XX_NAME "sc16is7xx"
#define SC16IS7XX_MAX_DEVS 8
diff --git a/include/linux/sched.h b/include/linux/sched.h
index 15971b1e3f57..6b5efdc4dee3 100644
--- a/include/linux/sched.h
+++ b/include/linux/sched.h
@@ -5,11 +5,6 @@
#include <linux/sched/prio.h>
-
-struct sched_param {
- int sched_priority;
-};
-
#include <asm/param.h> /* for HZ */
#include <linux/capability.h>
@@ -61,69 +56,8 @@ struct sched_param {
#include <asm/processor.h>
-#define SCHED_ATTR_SIZE_VER0 48 /* sizeof first published struct */
-
-/*
- * Extended scheduling parameters data structure.
- *
- * This is needed because the original struct sched_param can not be
- * altered without introducing ABI issues with legacy applications
- * (e.g., in sched_getparam()).
- *
- * However, the possibility of specifying more than just a priority for
- * the tasks may be useful for a wide variety of application fields, e.g.,
- * multimedia, streaming, automation and control, and many others.
- *
- * This variant (sched_attr) is meant at describing a so-called
- * sporadic time-constrained task. In such model a task is specified by:
- * - the activation period or minimum instance inter-arrival time;
- * - the maximum (or average, depending on the actual scheduling
- * discipline) computation time of all instances, a.k.a. runtime;
- * - the deadline (relative to the actual activation time) of each
- * instance.
- * Very briefly, a periodic (sporadic) task asks for the execution of
- * some specific computation --which is typically called an instance--
- * (at most) every period. Moreover, each instance typically lasts no more
- * than the runtime and must be completed by time instant t equal to
- * the instance activation time + the deadline.
- *
- * This is reflected by the actual fields of the sched_attr structure:
- *
- * @size size of the structure, for fwd/bwd compat.
- *
- * @sched_policy task's scheduling policy
- * @sched_flags for customizing the scheduler behaviour
- * @sched_nice task's nice value (SCHED_NORMAL/BATCH)
- * @sched_priority task's static priority (SCHED_FIFO/RR)
- * @sched_deadline representative of the task's deadline
- * @sched_runtime representative of the task's runtime
- * @sched_period representative of the task's period
- *
- * Given this task model, there are a multiplicity of scheduling algorithms
- * and policies, that can be used to ensure all the tasks will make their
- * timing constraints.
- *
- * As of now, the SCHED_DEADLINE policy (sched_dl scheduling class) is the
- * only user of this new interface. More information about the algorithm
- * available in the scheduling class file or in Documentation/.
- */
-struct sched_attr {
- u32 size;
-
- u32 sched_policy;
- u64 sched_flags;
-
- /* SCHED_NORMAL, SCHED_BATCH */
- s32 sched_nice;
-
- /* SCHED_FIFO, SCHED_RR */
- u32 sched_priority;
-
- /* SCHED_DEADLINE */
- u64 sched_runtime;
- u64 sched_deadline;
- u64 sched_period;
-};
+struct sched_attr;
+struct sched_param;
struct futex_pi_state;
struct robust_list_head;
diff --git a/include/uapi/linux/sched/types.h b/include/uapi/linux/sched/types.h
new file mode 100644
index 000000000000..307acbc82d80
--- /dev/null
+++ b/include/uapi/linux/sched/types.h
@@ -0,0 +1,74 @@
+#ifndef _UAPI_LINUX_SCHED_TYPES_H
+#define _UAPI_LINUX_SCHED_TYPES_H
+
+#include <linux/types.h>
+
+struct sched_param {
+ int sched_priority;
+};
+
+#define SCHED_ATTR_SIZE_VER0 48 /* sizeof first published struct */
+
+/*
+ * Extended scheduling parameters data structure.
+ *
+ * This is needed because the original struct sched_param can not be
+ * altered without introducing ABI issues with legacy applications
+ * (e.g., in sched_getparam()).
+ *
+ * However, the possibility of specifying more than just a priority for
+ * the tasks may be useful for a wide variety of application fields, e.g.,
+ * multimedia, streaming, automation and control, and many others.
+ *
+ * This variant (sched_attr) is meant at describing a so-called
+ * sporadic time-constrained task. In such model a task is specified by:
+ * - the activation period or minimum instance inter-arrival time;
+ * - the maximum (or average, depending on the actual scheduling
+ * discipline) computation time of all instances, a.k.a. runtime;
+ * - the deadline (relative to the actual activation time) of each
+ * instance.
+ * Very briefly, a periodic (sporadic) task asks for the execution of
+ * some specific computation --which is typically called an instance--
+ * (at most) every period. Moreover, each instance typically lasts no more
+ * than the runtime and must be completed by time instant t equal to
+ * the instance activation time + the deadline.
+ *
+ * This is reflected by the actual fields of the sched_attr structure:
+ *
+ * @size size of the structure, for fwd/bwd compat.
+ *
+ * @sched_policy task's scheduling policy
+ * @sched_flags for customizing the scheduler behaviour
+ * @sched_nice task's nice value (SCHED_NORMAL/BATCH)
+ * @sched_priority task's static priority (SCHED_FIFO/RR)
+ * @sched_deadline representative of the task's deadline
+ * @sched_runtime representative of the task's runtime
+ * @sched_period representative of the task's period
+ *
+ * Given this task model, there are a multiplicity of scheduling algorithms
+ * and policies, that can be used to ensure all the tasks will make their
+ * timing constraints.
+ *
+ * As of now, the SCHED_DEADLINE policy (sched_dl scheduling class) is the
+ * only user of this new interface. More information about the algorithm
+ * available in the scheduling class file or in Documentation/.
+ */
+struct sched_attr {
+ u32 size;
+
+ u32 sched_policy;
+ u64 sched_flags;
+
+ /* SCHED_NORMAL, SCHED_BATCH */
+ s32 sched_nice;
+
+ /* SCHED_FIFO, SCHED_RR */
+ u32 sched_priority;
+
+ /* SCHED_DEADLINE */
+ u64 sched_runtime;
+ u64 sched_deadline;
+ u64 sched_period;
+};
+
+#endif /* _UAPI_LINUX_SCHED_TYPES_H */
diff --git a/kernel/irq/manage.c b/kernel/irq/manage.c
index 6b669593e7eb..fd63775796c3 100644
--- a/kernel/irq/manage.c
+++ b/kernel/irq/manage.c
@@ -17,6 +17,7 @@
#include <linux/slab.h>
#include <linux/sched.h>
#include <linux/sched/rt.h>
+#include <uapi/linux/sched/types.h>
#include <linux/task_work.h>
#include "internals.h"
diff --git a/kernel/kthread.c b/kernel/kthread.c
index 2318fba86277..220b81b860cd 100644
--- a/kernel/kthread.c
+++ b/kernel/kthread.c
@@ -5,6 +5,7 @@
* even if we're invoked from userspace (think modprobe, hotplug cpu,
* etc.).
*/
+#include <uapi/linux/sched/types.h>
#include <linux/sched.h>
#include <linux/kthread.h>
#include <linux/completion.h>
diff --git a/kernel/locking/locktorture.c b/kernel/locking/locktorture.c
index 9bffedd82884..c8d1be88322a 100644
--- a/kernel/locking/locktorture.c
+++ b/kernel/locking/locktorture.c
@@ -32,6 +32,7 @@
#include <linux/smp.h>
#include <linux/interrupt.h>
#include <linux/sched.h>
+#include <uapi/linux/sched/types.h>
#include <linux/atomic.h>
#include <linux/moduleparam.h>
#include <linux/delay.h>
diff --git a/kernel/rcu/rcuperf.c b/kernel/rcu/rcuperf.c
index 123ccbd22449..a4a86fb47e4a 100644
--- a/kernel/rcu/rcuperf.c
+++ b/kernel/rcu/rcuperf.c
@@ -30,6 +30,7 @@
#include <linux/rcupdate.h>
#include <linux/interrupt.h>
#include <linux/sched.h>
+#include <uapi/linux/sched/types.h>
#include <linux/atomic.h>
#include <linux/bitops.h>
#include <linux/completion.h>
diff --git a/kernel/rcu/rcutorture.c b/kernel/rcu/rcutorture.c
index 87c51225ceec..d712760f9397 100644
--- a/kernel/rcu/rcutorture.c
+++ b/kernel/rcu/rcutorture.c
@@ -33,6 +33,7 @@
#include <linux/rcupdate.h>
#include <linux/interrupt.h>
#include <linux/sched.h>
+#include <uapi/linux/sched/types.h>
#include <linux/atomic.h>
#include <linux/bitops.h>
#include <linux/completion.h>
diff --git a/kernel/rcu/tree.c b/kernel/rcu/tree.c
index cb4e2056ccf3..4506ecfcb30a 100644
--- a/kernel/rcu/tree.c
+++ b/kernel/rcu/tree.c
@@ -49,6 +49,7 @@
#include <linux/kernel_stat.h>
#include <linux/wait.h>
#include <linux/kthread.h>
+#include <uapi/linux/sched/types.h>
#include <linux/prefetch.h>
#include <linux/delay.h>
#include <linux/stop_machine.h>
diff --git a/kernel/rcu/tree_plugin.h b/kernel/rcu/tree_plugin.h
index 56583e764ebf..608189df317a 100644
--- a/kernel/rcu/tree_plugin.h
+++ b/kernel/rcu/tree_plugin.h
@@ -28,6 +28,7 @@
#include <linux/gfp.h>
#include <linux/oom.h>
#include <linux/smpboot.h>
+#include <uapi/linux/sched/types.h>
#include "../time/tick-internal.h"
#ifdef CONFIG_RCU_BOOST
diff --git a/kernel/sched/core.c b/kernel/sched/core.c
index eb15f66244a0..548d1ffabc79 100644
--- a/kernel/sched/core.c
+++ b/kernel/sched/core.c
@@ -5,8 +5,11 @@
*
* Copyright (C) 1991-2002 Linus Torvalds
*/
+#include <uapi/linux/sched/types.h>
+
#include <linux/sched.h>
#include <linux/sched/clock.h>
+#include <uapi/linux/sched/types.h>
#include <linux/cpuset.h>
#include <linux/delayacct.h>
#include <linux/init_task.h>
diff --git a/kernel/sched/cpufreq_schedutil.c b/kernel/sched/cpufreq_schedutil.c
index fd4659313640..8f8de3d4d6b7 100644
--- a/kernel/sched/cpufreq_schedutil.c
+++ b/kernel/sched/cpufreq_schedutil.c
@@ -13,6 +13,7 @@
#include <linux/cpufreq.h>
#include <linux/kthread.h>
+#include <uapi/linux/sched/types.h>
#include <linux/slab.h>
#include <trace/events/power.h>
diff --git a/kernel/trace/ring_buffer_benchmark.c b/kernel/trace/ring_buffer_benchmark.c
index 6df9a83e20d7..c190a4d5013c 100644
--- a/kernel/trace/ring_buffer_benchmark.c
+++ b/kernel/trace/ring_buffer_benchmark.c
@@ -6,6 +6,7 @@
#include <linux/ring_buffer.h>
#include <linux/completion.h>
#include <linux/kthread.h>
+#include <uapi/linux/sched/types.h>
#include <linux/module.h>
#include <linux/ktime.h>
#include <asm/local.h>
diff --git a/kernel/trace/trace_selftest.c b/kernel/trace/trace_selftest.c
index b0f86ea77881..cb917cebae29 100644
--- a/kernel/trace/trace_selftest.c
+++ b/kernel/trace/trace_selftest.c
@@ -1,5 +1,6 @@
/* Include in trace.c */
+#include <uapi/linux/sched/types.h>
#include <linux/stringify.h>
#include <linux/kthread.h>
#include <linux/delay.h>
diff --git a/kernel/watchdog.c b/kernel/watchdog.c
index 144d7b1b0364..52718f4512e9 100644
--- a/kernel/watchdog.c
+++ b/kernel/watchdog.c
@@ -19,6 +19,7 @@
#include <linux/sysctl.h>
#include <linux/smpboot.h>
#include <linux/sched/rt.h>
+#include <uapi/linux/sched/types.h>
#include <linux/tick.h>
#include <linux/workqueue.h>
#include <linux/sched/clock.h>
--
2.7.4
^ permalink raw reply related [flat|nested] 119+ messages in thread
* [PATCH 13/89] sched/loadavg: Move loadavg related definitions from <linux/sched.h> to <linux/sched/loadavg.h>
2017-02-06 13:28 [PATCH 00/89] Major reorganization of <linux/sched.h> Ingo Molnar
` (11 preceding siblings ...)
2017-02-06 13:28 ` [PATCH 12/89] sched/abi: Introduce <uapi/linux/sched/types.h> Ingo Molnar
@ 2017-02-06 13:28 ` Ingo Molnar
2017-02-06 13:28 ` [PATCH 14/89] sched/autogroup: Collect extern APIs into <linux/sched/autogroup.h> Ingo Molnar
` (77 subsequent siblings)
90 siblings, 0 replies; 119+ messages in thread
From: Ingo Molnar @ 2017-02-06 13:28 UTC (permalink / raw)
To: linux-kernel
Cc: Andrew Morton, Linus Torvalds, Mike Galbraith, Oleg Nesterov,
Peter Zijlstra, Thomas Gleixner
Create a new header for these bits, to reduce the size and complexity of <linux/sched.h>.
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
arch/m68k/kernel/time.c | 1 +
arch/microblaze/kernel/heartbeat.c | 1 +
arch/powerpc/platforms/cell/cpufreq_spudemand.c | 1 +
arch/powerpc/platforms/cell/spufs/sched.c | 1 +
arch/s390/appldata/appldata_os.c | 1 +
arch/sh/drivers/heartbeat.c | 1 +
arch/sparc/kernel/led.c | 1 +
| 1 +
drivers/leds/trigger/ledtrig-heartbeat.c | 1 +
drivers/platform/x86/intel_ips.c | 1 +
fs/proc/loadavg.c | 1 +
include/linux/sched.h | 27 ---------------------------
include/linux/sched/loadavg.h | 31 +++++++++++++++++++++++++++++++
kernel/debug/kdb/kdb_main.c | 1 +
kernel/sched/core.c | 2 +-
kernel/sched/loadavg.c | 1 +
kernel/sys.c | 1 +
kernel/time/timekeeping.c | 1 +
net/sched/em_meta.c | 1 +
19 files changed, 48 insertions(+), 28 deletions(-)
diff --git a/arch/m68k/kernel/time.c b/arch/m68k/kernel/time.c
index 4e5aa2f4f522..87160b4415fb 100644
--- a/arch/m68k/kernel/time.c
+++ b/arch/m68k/kernel/time.c
@@ -14,6 +14,7 @@
#include <linux/export.h>
#include <linux/module.h>
#include <linux/sched.h>
+#include <linux/sched/loadavg.h>
#include <linux/kernel.h>
#include <linux/param.h>
#include <linux/string.h>
diff --git a/arch/microblaze/kernel/heartbeat.c b/arch/microblaze/kernel/heartbeat.c
index 4643e3ab9414..2022130139d2 100644
--- a/arch/microblaze/kernel/heartbeat.c
+++ b/arch/microblaze/kernel/heartbeat.c
@@ -9,6 +9,7 @@
*/
#include <linux/sched.h>
+#include <linux/sched/loadavg.h>
#include <linux/io.h>
#include <asm/setup.h>
diff --git a/arch/powerpc/platforms/cell/cpufreq_spudemand.c b/arch/powerpc/platforms/cell/cpufreq_spudemand.c
index 88301e53f085..882944c36ef5 100644
--- a/arch/powerpc/platforms/cell/cpufreq_spudemand.c
+++ b/arch/powerpc/platforms/cell/cpufreq_spudemand.c
@@ -22,6 +22,7 @@
#include <linux/cpufreq.h>
#include <linux/sched.h>
+#include <linux/sched/loadavg.h>
#include <linux/module.h>
#include <linux/timer.h>
#include <linux/workqueue.h>
diff --git a/arch/powerpc/platforms/cell/spufs/sched.c b/arch/powerpc/platforms/cell/spufs/sched.c
index 460f5f31d5cb..c4cd6eb25b69 100644
--- a/arch/powerpc/platforms/cell/spufs/sched.c
+++ b/arch/powerpc/platforms/cell/spufs/sched.c
@@ -24,6 +24,7 @@
#include <linux/errno.h>
#include <linux/sched.h>
+#include <linux/sched/loadavg.h>
#include <linux/sched/rt.h>
#include <linux/kernel.h>
#include <linux/mm.h>
diff --git a/arch/s390/appldata/appldata_os.c b/arch/s390/appldata/appldata_os.c
index 08b9e942a262..079446619f89 100644
--- a/arch/s390/appldata/appldata_os.c
+++ b/arch/s390/appldata/appldata_os.c
@@ -17,6 +17,7 @@
#include <linux/kernel_stat.h>
#include <linux/netdevice.h>
#include <linux/sched.h>
+#include <linux/sched/loadavg.h>
#include <asm/appldata.h>
#include <asm/smp.h>
diff --git a/arch/sh/drivers/heartbeat.c b/arch/sh/drivers/heartbeat.c
index 49bace446a1a..c6d96049a0bb 100644
--- a/arch/sh/drivers/heartbeat.c
+++ b/arch/sh/drivers/heartbeat.c
@@ -21,6 +21,7 @@
#include <linux/init.h>
#include <linux/platform_device.h>
#include <linux/sched.h>
+#include <linux/sched/loadavg.h>
#include <linux/timer.h>
#include <linux/io.h>
#include <linux/slab.h>
diff --git a/arch/sparc/kernel/led.c b/arch/sparc/kernel/led.c
index 3ae36f36e758..44a3ed93c214 100644
--- a/arch/sparc/kernel/led.c
+++ b/arch/sparc/kernel/led.c
@@ -8,6 +8,7 @@
#include <linux/jiffies.h>
#include <linux/timer.h>
#include <linux/uaccess.h>
+#include <linux/sched/loadavg.h>
#include <asm/auxio.h>
--git a/drivers/cpuidle/governors/menu.c b/drivers/cpuidle/governors/menu.c
index d9b5b9398a0f..63d3bde4fac6 100644
--- a/drivers/cpuidle/governors/menu.c
+++ b/drivers/cpuidle/governors/menu.c
@@ -18,6 +18,7 @@
#include <linux/hrtimer.h>
#include <linux/tick.h>
#include <linux/sched.h>
+#include <linux/sched/loadavg.h>
#include <linux/math64.h>
/*
diff --git a/drivers/leds/trigger/ledtrig-heartbeat.c b/drivers/leds/trigger/ledtrig-heartbeat.c
index c9f386213e9e..05351296e634 100644
--- a/drivers/leds/trigger/ledtrig-heartbeat.c
+++ b/drivers/leds/trigger/ledtrig-heartbeat.c
@@ -17,6 +17,7 @@
#include <linux/slab.h>
#include <linux/timer.h>
#include <linux/sched.h>
+#include <linux/sched/loadavg.h>
#include <linux/leds.h>
#include <linux/reboot.h>
#include <linux/suspend.h>
diff --git a/drivers/platform/x86/intel_ips.c b/drivers/platform/x86/intel_ips.c
index 55663b3d7282..58dcee562d64 100644
--- a/drivers/platform/x86/intel_ips.c
+++ b/drivers/platform/x86/intel_ips.c
@@ -68,6 +68,7 @@
#include <linux/module.h>
#include <linux/pci.h>
#include <linux/sched.h>
+#include <linux/sched/loadavg.h>
#include <linux/seq_file.h>
#include <linux/string.h>
#include <linux/tick.h>
diff --git a/fs/proc/loadavg.c b/fs/proc/loadavg.c
index aec66e6c2060..add5255ce7e0 100644
--- a/fs/proc/loadavg.c
+++ b/fs/proc/loadavg.c
@@ -3,6 +3,7 @@
#include <linux/pid_namespace.h>
#include <linux/proc_fs.h>
#include <linux/sched.h>
+#include <linux/sched/loadavg.h>
#include <linux/seq_file.h>
#include <linux/seqlock.h>
#include <linux/time.h>
diff --git a/include/linux/sched.h b/include/linux/sched.h
index 6b5efdc4dee3..c5c10a7ddbf1 100644
--- a/include/linux/sched.h
+++ b/include/linux/sched.h
@@ -72,31 +72,6 @@ struct nameidata;
#define VMACACHE_SIZE (1U << VMACACHE_BITS)
#define VMACACHE_MASK (VMACACHE_SIZE - 1)
-/*
- * These are the constant used to fake the fixed-point load-average
- * counting. Some notes:
- * - 11 bit fractions expand to 22 bits by the multiplies: this gives
- * a load-average precision of 10 bits integer + 11 bits fractional
- * - if you want to count load-averages more often, you need more
- * precision, or rounding will get you. With 2-second counting freq,
- * the EXP_n values would be 1981, 2034 and 2043 if still using only
- * 11 bit fractions.
- */
-extern unsigned long avenrun[]; /* Load averages */
-extern void get_avenrun(unsigned long *loads, unsigned long offset, int shift);
-
-#define FSHIFT 11 /* nr of bits of precision */
-#define FIXED_1 (1<<FSHIFT) /* 1.0 as fixed-point */
-#define LOAD_FREQ (5*HZ+1) /* 5 sec intervals */
-#define EXP_1 1884 /* 1/exp(5sec/1min) as fixed-point */
-#define EXP_5 2014 /* 1/exp(5sec/5min) */
-#define EXP_15 2037 /* 1/exp(5sec/15min) */
-
-#define CALC_LOAD(load,exp,n) \
- load *= exp; \
- load += n*(FIXED_1-exp); \
- load >>= FSHIFT;
-
extern unsigned long total_forks;
extern int nr_threads;
DECLARE_PER_CPU(unsigned long, process_counts);
@@ -107,8 +82,6 @@ extern unsigned long nr_iowait(void);
extern unsigned long nr_iowait_cpu(int cpu);
extern void get_iowait_load(unsigned long *nr_waiters, unsigned long *load);
-extern void calc_global_load(unsigned long ticks);
-
#if defined(CONFIG_SMP) && defined(CONFIG_NO_HZ_COMMON)
extern void cpu_load_update_nohz_start(void);
extern void cpu_load_update_nohz_stop(void);
diff --git a/include/linux/sched/loadavg.h b/include/linux/sched/loadavg.h
new file mode 100644
index 000000000000..4264bc6b2c27
--- /dev/null
+++ b/include/linux/sched/loadavg.h
@@ -0,0 +1,31 @@
+#ifndef _LINUX_SCHED_LOADAVG_H
+#define _LINUX_SCHED_LOADAVG_H
+
+/*
+ * These are the constant used to fake the fixed-point load-average
+ * counting. Some notes:
+ * - 11 bit fractions expand to 22 bits by the multiplies: this gives
+ * a load-average precision of 10 bits integer + 11 bits fractional
+ * - if you want to count load-averages more often, you need more
+ * precision, or rounding will get you. With 2-second counting freq,
+ * the EXP_n values would be 1981, 2034 and 2043 if still using only
+ * 11 bit fractions.
+ */
+extern unsigned long avenrun[]; /* Load averages */
+extern void get_avenrun(unsigned long *loads, unsigned long offset, int shift);
+
+#define FSHIFT 11 /* nr of bits of precision */
+#define FIXED_1 (1<<FSHIFT) /* 1.0 as fixed-point */
+#define LOAD_FREQ (5*HZ+1) /* 5 sec intervals */
+#define EXP_1 1884 /* 1/exp(5sec/1min) as fixed-point */
+#define EXP_5 2014 /* 1/exp(5sec/5min) */
+#define EXP_15 2037 /* 1/exp(5sec/15min) */
+
+#define CALC_LOAD(load,exp,n) \
+ load *= exp; \
+ load += n*(FIXED_1-exp); \
+ load >>= FSHIFT;
+
+extern void calc_global_load(unsigned long ticks);
+
+#endif /* _LINUX_SCHED_LOADAVG_H */
diff --git a/kernel/debug/kdb/kdb_main.c b/kernel/debug/kdb/kdb_main.c
index ca183919d302..308937c7a687 100644
--- a/kernel/debug/kdb/kdb_main.c
+++ b/kernel/debug/kdb/kdb_main.c
@@ -18,6 +18,7 @@
#include <linux/kmsg_dump.h>
#include <linux/reboot.h>
#include <linux/sched.h>
+#include <linux/sched/loadavg.h>
#include <linux/sysrq.h>
#include <linux/smp.h>
#include <linux/utsname.h>
diff --git a/kernel/sched/core.c b/kernel/sched/core.c
index 548d1ffabc79..568e773c528f 100644
--- a/kernel/sched/core.c
+++ b/kernel/sched/core.c
@@ -9,7 +9,7 @@
#include <linux/sched.h>
#include <linux/sched/clock.h>
-#include <uapi/linux/sched/types.h>
+#include <linux/sched/loadavg.h>
#include <linux/cpuset.h>
#include <linux/delayacct.h>
#include <linux/init_task.h>
diff --git a/kernel/sched/loadavg.c b/kernel/sched/loadavg.c
index a2d6eb71f06b..7296b7308eca 100644
--- a/kernel/sched/loadavg.c
+++ b/kernel/sched/loadavg.c
@@ -7,6 +7,7 @@
*/
#include <linux/export.h>
+#include <linux/sched/loadavg.h>
#include "sched.h"
diff --git a/kernel/sys.c b/kernel/sys.c
index 7d4a9a6df956..47151c604f0a 100644
--- a/kernel/sys.c
+++ b/kernel/sys.c
@@ -49,6 +49,7 @@
#include <linux/binfmts.h>
#include <linux/sched.h>
+#include <linux/sched/loadavg.h>
#include <linux/rcupdate.h>
#include <linux/uidgid.h>
#include <linux/cred.h>
diff --git a/kernel/time/timekeeping.c b/kernel/time/timekeeping.c
index 95b258dd75db..fb564acee0f3 100644
--- a/kernel/time/timekeeping.c
+++ b/kernel/time/timekeeping.c
@@ -15,6 +15,7 @@
#include <linux/init.h>
#include <linux/mm.h>
#include <linux/sched.h>
+#include <linux/sched/loadavg.h>
#include <linux/syscore_ops.h>
#include <linux/clocksource.h>
#include <linux/jiffies.h>
diff --git a/net/sched/em_meta.c b/net/sched/em_meta.c
index 41c80b6c3906..ae7e4f5b348b 100644
--- a/net/sched/em_meta.c
+++ b/net/sched/em_meta.c
@@ -63,6 +63,7 @@
#include <linux/types.h>
#include <linux/kernel.h>
#include <linux/sched.h>
+#include <linux/sched/loadavg.h>
#include <linux/string.h>
#include <linux/skbuff.h>
#include <linux/random.h>
--
2.7.4
^ permalink raw reply related [flat|nested] 119+ messages in thread
* [PATCH 14/89] sched/autogroup: Collect extern APIs into <linux/sched/autogroup.h>
2017-02-06 13:28 [PATCH 00/89] Major reorganization of <linux/sched.h> Ingo Molnar
` (12 preceding siblings ...)
2017-02-06 13:28 ` [PATCH 13/89] sched/loadavg: Move loadavg related definitions from <linux/sched.h> to <linux/sched/loadavg.h> Ingo Molnar
@ 2017-02-06 13:28 ` Ingo Molnar
2017-02-06 13:28 ` [PATCH 15/89] sched/autogroup: Rename auto_group.[ch] to autogroup.[ch] Ingo Molnar
` (76 subsequent siblings)
90 siblings, 0 replies; 119+ messages in thread
From: Ingo Molnar @ 2017-02-06 13:28 UTC (permalink / raw)
To: linux-kernel
Cc: Andrew Morton, Linus Torvalds, Mike Galbraith, Oleg Nesterov,
Peter Zijlstra, Thomas Gleixner
Further reduce the size of sched.h.
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
fs/proc/base.c | 1 +
include/linux/sched.h | 18 ------------------
include/linux/sched/autogroup.h | 25 +++++++++++++++++++++++++
kernel/exit.c | 1 +
kernel/fork.c | 1 +
kernel/sched/auto_group.h | 1 +
kernel/sys.c | 1 +
7 files changed, 30 insertions(+), 18 deletions(-)
diff --git a/fs/proc/base.c b/fs/proc/base.c
index b1f7d30e96c2..c5277d3cdacd 100644
--- a/fs/proc/base.c
+++ b/fs/proc/base.c
@@ -85,6 +85,7 @@
#include <linux/user_namespace.h>
#include <linux/fs_struct.h>
#include <linux/slab.h>
+#include <linux/sched/autogroup.h>
#include <linux/flex_array.h>
#include <linux/posix-timers.h>
#ifdef CONFIG_HARDWALL
diff --git a/include/linux/sched.h b/include/linux/sched.h
index c5c10a7ddbf1..3842a0d822a9 100644
--- a/include/linux/sched.h
+++ b/include/linux/sched.h
@@ -2101,24 +2101,6 @@ static inline void wake_up_nohz_cpu(int cpu) { }
extern u64 scheduler_tick_max_deferment(void);
#endif
-#ifdef CONFIG_SCHED_AUTOGROUP
-extern void sched_autogroup_create_attach(struct task_struct *p);
-extern void sched_autogroup_detach(struct task_struct *p);
-extern void sched_autogroup_fork(struct signal_struct *sig);
-extern void sched_autogroup_exit(struct signal_struct *sig);
-extern void sched_autogroup_exit_task(struct task_struct *p);
-#ifdef CONFIG_PROC_FS
-extern void proc_sched_autogroup_show_task(struct task_struct *p, struct seq_file *m);
-extern int proc_sched_autogroup_set_nice(struct task_struct *p, int nice);
-#endif
-#else
-static inline void sched_autogroup_create_attach(struct task_struct *p) { }
-static inline void sched_autogroup_detach(struct task_struct *p) { }
-static inline void sched_autogroup_fork(struct signal_struct *sig) { }
-static inline void sched_autogroup_exit(struct signal_struct *sig) { }
-static inline void sched_autogroup_exit_task(struct task_struct *p) { }
-#endif
-
extern int yield_to(struct task_struct *p, bool preempt);
extern void set_user_nice(struct task_struct *p, long nice);
extern int task_prio(const struct task_struct *p);
diff --git a/include/linux/sched/autogroup.h b/include/linux/sched/autogroup.h
new file mode 100644
index 000000000000..d4dc91da7479
--- /dev/null
+++ b/include/linux/sched/autogroup.h
@@ -0,0 +1,25 @@
+#ifndef _LINUX_SCHED_AUTOGROUP_H
+#define _LINUX_SCHED_AUTOGROUP_H
+
+struct signal_struct;
+struct seq_file;
+
+#ifdef CONFIG_SCHED_AUTOGROUP
+extern void sched_autogroup_create_attach(struct task_struct *p);
+extern void sched_autogroup_detach(struct task_struct *p);
+extern void sched_autogroup_fork(struct signal_struct *sig);
+extern void sched_autogroup_exit(struct signal_struct *sig);
+extern void sched_autogroup_exit_task(struct task_struct *p);
+#ifdef CONFIG_PROC_FS
+extern void proc_sched_autogroup_show_task(struct task_struct *p, struct seq_file *m);
+extern int proc_sched_autogroup_set_nice(struct task_struct *p, int nice);
+#endif
+#else
+static inline void sched_autogroup_create_attach(struct task_struct *p) { }
+static inline void sched_autogroup_detach(struct task_struct *p) { }
+static inline void sched_autogroup_fork(struct signal_struct *sig) { }
+static inline void sched_autogroup_exit(struct signal_struct *sig) { }
+static inline void sched_autogroup_exit_task(struct task_struct *p) { }
+#endif
+
+#endif /* _LINUX_SCHED_AUTOGROUP_H */
diff --git a/kernel/exit.c b/kernel/exit.c
index b67c57faa705..4c9bc6e90a45 100644
--- a/kernel/exit.c
+++ b/kernel/exit.c
@@ -6,6 +6,7 @@
#include <linux/mm.h>
#include <linux/slab.h>
+#include <linux/sched/autogroup.h>
#include <linux/interrupt.h>
#include <linux/module.h>
#include <linux/capability.h>
diff --git a/kernel/fork.c b/kernel/fork.c
index 9aa2ca28a76c..56f281adaa0e 100644
--- a/kernel/fork.c
+++ b/kernel/fork.c
@@ -12,6 +12,7 @@
*/
#include <linux/slab.h>
+#include <linux/sched/autogroup.h>
#include <linux/init.h>
#include <linux/unistd.h>
#include <linux/module.h>
diff --git a/kernel/sched/auto_group.h b/kernel/sched/auto_group.h
index 890c95f2587a..ce40c810cd5c 100644
--- a/kernel/sched/auto_group.h
+++ b/kernel/sched/auto_group.h
@@ -2,6 +2,7 @@
#include <linux/kref.h>
#include <linux/rwsem.h>
+#include <linux/sched/autogroup.h>
struct autogroup {
/*
diff --git a/kernel/sys.c b/kernel/sys.c
index 47151c604f0a..b548eb9c4d1a 100644
--- a/kernel/sys.c
+++ b/kernel/sys.c
@@ -49,6 +49,7 @@
#include <linux/binfmts.h>
#include <linux/sched.h>
+#include <linux/sched/autogroup.h>
#include <linux/sched/loadavg.h>
#include <linux/rcupdate.h>
#include <linux/uidgid.h>
--
2.7.4
^ permalink raw reply related [flat|nested] 119+ messages in thread
* [PATCH 15/89] sched/autogroup: Rename auto_group.[ch] to autogroup.[ch]
2017-02-06 13:28 [PATCH 00/89] Major reorganization of <linux/sched.h> Ingo Molnar
` (13 preceding siblings ...)
2017-02-06 13:28 ` [PATCH 14/89] sched/autogroup: Collect extern APIs into <linux/sched/autogroup.h> Ingo Molnar
@ 2017-02-06 13:28 ` Ingo Molnar
2017-02-06 13:28 ` [PATCH 16/89] sched/idle: Move polling methods to <linux/sched/idle.h> Ingo Molnar
` (75 subsequent siblings)
90 siblings, 0 replies; 119+ messages in thread
From: Ingo Molnar @ 2017-02-06 13:28 UTC (permalink / raw)
To: linux-kernel
Cc: Andrew Morton, Linus Torvalds, Mike Galbraith, Oleg Nesterov,
Peter Zijlstra, Thomas Gleixner
The names are all 'autogroup', not 'auto_group' - so rename
the kernel/sched/auto_group.[ch] to match the existing
nomenclature.
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
kernel/sched/Makefile | 2 +-
kernel/sched/{auto_group.c => autogroup.c} | 0
kernel/sched/{auto_group.h => autogroup.h} | 0
kernel/sched/sched.h | 2 +-
4 files changed, 2 insertions(+), 2 deletions(-)
diff --git a/kernel/sched/Makefile b/kernel/sched/Makefile
index 130ce8ac725b..89ab6758667b 100644
--- a/kernel/sched/Makefile
+++ b/kernel/sched/Makefile
@@ -19,7 +19,7 @@ obj-y += core.o loadavg.o clock.o cputime.o
obj-y += idle_task.o fair.o rt.o deadline.o stop_task.o
obj-y += wait.o swait.o completion.o idle.o
obj-$(CONFIG_SMP) += cpupri.o cpudeadline.o topology.o
-obj-$(CONFIG_SCHED_AUTOGROUP) += auto_group.o
+obj-$(CONFIG_SCHED_AUTOGROUP) += autogroup.o
obj-$(CONFIG_SCHEDSTATS) += stats.o
obj-$(CONFIG_SCHED_DEBUG) += debug.o
obj-$(CONFIG_CGROUP_CPUACCT) += cpuacct.o
diff --git a/kernel/sched/auto_group.c b/kernel/sched/autogroup.c
similarity index 100%
rename from kernel/sched/auto_group.c
rename to kernel/sched/autogroup.c
diff --git a/kernel/sched/auto_group.h b/kernel/sched/autogroup.h
similarity index 100%
rename from kernel/sched/auto_group.h
rename to kernel/sched/autogroup.h
diff --git a/kernel/sched/sched.h b/kernel/sched/sched.h
index f6c11f96e834..4d386461f13a 100644
--- a/kernel/sched/sched.h
+++ b/kernel/sched/sched.h
@@ -1072,7 +1072,7 @@ static inline void sched_ttwu_pending(void) { }
#endif /* CONFIG_SMP */
#include "stats.h"
-#include "auto_group.h"
+#include "autogroup.h"
#ifdef CONFIG_CGROUP_SCHED
--
2.7.4
^ permalink raw reply related [flat|nested] 119+ messages in thread
* [PATCH 16/89] sched/idle: Move polling methods to <linux/sched/idle.h>
2017-02-06 13:28 [PATCH 00/89] Major reorganization of <linux/sched.h> Ingo Molnar
` (14 preceding siblings ...)
2017-02-06 13:28 ` [PATCH 15/89] sched/autogroup: Rename auto_group.[ch] to autogroup.[ch] Ingo Molnar
@ 2017-02-06 13:28 ` Ingo Molnar
2017-02-06 13:28 ` [PATCH 17/89] sched/idle: Remove tsk_is_polling() Ingo Molnar
` (74 subsequent siblings)
90 siblings, 0 replies; 119+ messages in thread
From: Ingo Molnar @ 2017-02-06 13:28 UTC (permalink / raw)
To: linux-kernel
Cc: Andrew Morton, Linus Torvalds, Mike Galbraith, Oleg Nesterov,
Peter Zijlstra, Thomas Gleixner
Further reduce the size of <linux/sched.h> by moving these APIs:
tsk_is_polling()
__current_set_polling()
current_set_polling_and_test()
__current_clr_polling()
current_clr_polling_and_test()
current_clr_polling()
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
arch/x86/include/asm/mwait.h | 1 +
arch/x86/kernel/process.c | 1 +
drivers/cpuidle/driver.c | 1 +
include/linux/sched.h | 76 ----------------------------------------------------------------
include/linux/sched/idle.h | 76 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
kernel/sched/idle.c | 1 +
6 files changed, 80 insertions(+), 76 deletions(-)
diff --git a/arch/x86/include/asm/mwait.h b/arch/x86/include/asm/mwait.h
index f37f2d8a2989..bda3c27f0da0 100644
--- a/arch/x86/include/asm/mwait.h
+++ b/arch/x86/include/asm/mwait.h
@@ -2,6 +2,7 @@
#define _ASM_X86_MWAIT_H
#include <linux/sched.h>
+#include <linux/sched/idle.h>
#include <asm/cpufeature.h>
diff --git a/arch/x86/kernel/process.c b/arch/x86/kernel/process.c
index b615a1113f58..e9176466c587 100644
--- a/arch/x86/kernel/process.c
+++ b/arch/x86/kernel/process.c
@@ -7,6 +7,7 @@
#include <linux/prctl.h>
#include <linux/slab.h>
#include <linux/sched.h>
+#include <linux/sched/idle.h>
#include <linux/init.h>
#include <linux/export.h>
#include <linux/pm.h>
diff --git a/drivers/cpuidle/driver.c b/drivers/cpuidle/driver.c
index ab264d393233..e53fb861beb0 100644
--- a/drivers/cpuidle/driver.c
+++ b/drivers/cpuidle/driver.c
@@ -11,6 +11,7 @@
#include <linux/mutex.h>
#include <linux/module.h>
#include <linux/sched.h>
+#include <linux/sched/idle.h>
#include <linux/cpuidle.h>
#include <linux/cpumask.h>
#include <linux/tick.h>
diff --git a/include/linux/sched.h b/include/linux/sched.h
index 3842a0d822a9..93bb2b0b22fd 100644
--- a/include/linux/sched.h
+++ b/include/linux/sched.h
@@ -2888,82 +2888,6 @@ static inline int spin_needbreak(spinlock_t *lock)
#endif
}
-/*
- * Idle thread specific functions to determine the need_resched
- * polling state.
- */
-#ifdef TIF_POLLING_NRFLAG
-static inline int tsk_is_polling(struct task_struct *p)
-{
- return test_tsk_thread_flag(p, TIF_POLLING_NRFLAG);
-}
-
-static inline void __current_set_polling(void)
-{
- set_thread_flag(TIF_POLLING_NRFLAG);
-}
-
-static inline bool __must_check current_set_polling_and_test(void)
-{
- __current_set_polling();
-
- /*
- * Polling state must be visible before we test NEED_RESCHED,
- * paired by resched_curr()
- */
- smp_mb__after_atomic();
-
- return unlikely(tif_need_resched());
-}
-
-static inline void __current_clr_polling(void)
-{
- clear_thread_flag(TIF_POLLING_NRFLAG);
-}
-
-static inline bool __must_check current_clr_polling_and_test(void)
-{
- __current_clr_polling();
-
- /*
- * Polling state must be visible before we test NEED_RESCHED,
- * paired by resched_curr()
- */
- smp_mb__after_atomic();
-
- return unlikely(tif_need_resched());
-}
-
-#else
-static inline int tsk_is_polling(struct task_struct *p) { return 0; }
-static inline void __current_set_polling(void) { }
-static inline void __current_clr_polling(void) { }
-
-static inline bool __must_check current_set_polling_and_test(void)
-{
- return unlikely(tif_need_resched());
-}
-static inline bool __must_check current_clr_polling_and_test(void)
-{
- return unlikely(tif_need_resched());
-}
-#endif
-
-static inline void current_clr_polling(void)
-{
- __current_clr_polling();
-
- /*
- * Ensure we check TIF_NEED_RESCHED after we clear the polling bit.
- * Once the bit is cleared, we'll get IPIs with every new
- * TIF_NEED_RESCHED and the IPI handler, scheduler_ipi(), will also
- * fold.
- */
- smp_mb(); /* paired with resched_curr() */
-
- preempt_fold_need_resched();
-}
-
static __always_inline bool need_resched(void)
{
return unlikely(tif_need_resched());
diff --git a/include/linux/sched/idle.h b/include/linux/sched/idle.h
index 6bcb32118ab0..0c15c7ed906f 100644
--- a/include/linux/sched/idle.h
+++ b/include/linux/sched/idle.h
@@ -10,4 +10,80 @@ enum cpu_idle_type {
extern void wake_up_if_idle(int cpu);
+/*
+ * Idle thread specific functions to determine the need_resched
+ * polling state.
+ */
+#ifdef TIF_POLLING_NRFLAG
+static inline int tsk_is_polling(struct task_struct *p)
+{
+ return test_tsk_thread_flag(p, TIF_POLLING_NRFLAG);
+}
+
+static inline void __current_set_polling(void)
+{
+ set_thread_flag(TIF_POLLING_NRFLAG);
+}
+
+static inline bool __must_check current_set_polling_and_test(void)
+{
+ __current_set_polling();
+
+ /*
+ * Polling state must be visible before we test NEED_RESCHED,
+ * paired by resched_curr()
+ */
+ smp_mb__after_atomic();
+
+ return unlikely(tif_need_resched());
+}
+
+static inline void __current_clr_polling(void)
+{
+ clear_thread_flag(TIF_POLLING_NRFLAG);
+}
+
+static inline bool __must_check current_clr_polling_and_test(void)
+{
+ __current_clr_polling();
+
+ /*
+ * Polling state must be visible before we test NEED_RESCHED,
+ * paired by resched_curr()
+ */
+ smp_mb__after_atomic();
+
+ return unlikely(tif_need_resched());
+}
+
+#else
+static inline int tsk_is_polling(struct task_struct *p) { return 0; }
+static inline void __current_set_polling(void) { }
+static inline void __current_clr_polling(void) { }
+
+static inline bool __must_check current_set_polling_and_test(void)
+{
+ return unlikely(tif_need_resched());
+}
+static inline bool __must_check current_clr_polling_and_test(void)
+{
+ return unlikely(tif_need_resched());
+}
+#endif
+
+static inline void current_clr_polling(void)
+{
+ __current_clr_polling();
+
+ /*
+ * Ensure we check TIF_NEED_RESCHED after we clear the polling bit.
+ * Once the bit is cleared, we'll get IPIs with every new
+ * TIF_NEED_RESCHED and the IPI handler, scheduler_ipi(), will also
+ * fold.
+ */
+ smp_mb(); /* paired with resched_curr() */
+
+ preempt_fold_need_resched();
+}
+
#endif /* _LINUX_SCHED_IDLE_H */
diff --git a/kernel/sched/idle.c b/kernel/sched/idle.c
index 6a4bae0a649d..ac6d5176463d 100644
--- a/kernel/sched/idle.c
+++ b/kernel/sched/idle.c
@@ -2,6 +2,7 @@
* Generic entry point for the idle threads
*/
#include <linux/sched.h>
+#include <linux/sched/idle.h>
#include <linux/cpu.h>
#include <linux/cpuidle.h>
#include <linux/cpuhotplug.h>
--
2.7.4
^ permalink raw reply related [flat|nested] 119+ messages in thread
* [PATCH 17/89] sched/idle: Remove tsk_is_polling()
2017-02-06 13:28 [PATCH 00/89] Major reorganization of <linux/sched.h> Ingo Molnar
` (15 preceding siblings ...)
2017-02-06 13:28 ` [PATCH 16/89] sched/idle: Move polling methods to <linux/sched/idle.h> Ingo Molnar
@ 2017-02-06 13:28 ` Ingo Molnar
2017-02-06 13:28 ` [PATCH 18/89] sched/core: Move task->mm handling methods to <linux/sched/mm.h> Ingo Molnar
` (73 subsequent siblings)
90 siblings, 0 replies; 119+ messages in thread
From: Ingo Molnar @ 2017-02-06 13:28 UTC (permalink / raw)
To: linux-kernel
Cc: Andrew Morton, Linus Torvalds, Mike Galbraith, Oleg Nesterov,
Peter Zijlstra, Thomas Gleixner
It's not used by anything.
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
include/linux/sched/idle.h | 5 -----
1 file changed, 5 deletions(-)
diff --git a/include/linux/sched/idle.h b/include/linux/sched/idle.h
index 0c15c7ed906f..dabd62394af4 100644
--- a/include/linux/sched/idle.h
+++ b/include/linux/sched/idle.h
@@ -15,10 +15,6 @@ extern void wake_up_if_idle(int cpu);
* polling state.
*/
#ifdef TIF_POLLING_NRFLAG
-static inline int tsk_is_polling(struct task_struct *p)
-{
- return test_tsk_thread_flag(p, TIF_POLLING_NRFLAG);
-}
static inline void __current_set_polling(void)
{
@@ -57,7 +53,6 @@ static inline bool __must_check current_clr_polling_and_test(void)
}
#else
-static inline int tsk_is_polling(struct task_struct *p) { return 0; }
static inline void __current_set_polling(void) { }
static inline void __current_clr_polling(void) { }
--
2.7.4
^ permalink raw reply related [flat|nested] 119+ messages in thread
* [PATCH 18/89] sched/core: Move task->mm handling methods to <linux/sched/mm.h>
2017-02-06 13:28 [PATCH 00/89] Major reorganization of <linux/sched.h> Ingo Molnar
` (16 preceding siblings ...)
2017-02-06 13:28 ` [PATCH 17/89] sched/idle: Remove tsk_is_polling() Ingo Molnar
@ 2017-02-06 13:28 ` Ingo Molnar
2017-02-06 14:28 ` Christoph Hellwig
2017-02-06 13:28 ` [PATCH 19/89] sched/core: Move task->mm coredumping related defines and methods from <linux/sched.h> to <linux/sched/coredump.h> Ingo Molnar
` (72 subsequent siblings)
90 siblings, 1 reply; 119+ messages in thread
From: Ingo Molnar @ 2017-02-06 13:28 UTC (permalink / raw)
To: linux-kernel
Cc: Andrew Morton, Linus Torvalds, Mike Galbraith, Oleg Nesterov,
Peter Zijlstra, Thomas Gleixner
Move the following task->mm helper APIs into a new header file,
<linux/sched/mm.h>, to further reduce the size and complexity
of <linux/sched.h>:
# mm_alloc():
arch/arm/mach-rpc/ecard.c
fs/exec.c
include/linux/sched/mm.h
kernel/fork.c
# __mmdrop():
arch/arc/include/asm/mmu_context.h
include/linux/sched/mm.h
kernel/fork.c
# mmdrop():
arch/arm/mach-rpc/ecard.c
arch/m68k/sun3/mmu_emu.c
arch/x86/mm/tlb.c
drivers/gpu/drm/amd/amdkfd/kfd_process.c
drivers/gpu/drm/i915/i915_gem_userptr.c
drivers/infiniband/hw/hfi1/file_ops.c
drivers/vfio/vfio_iommu_spapr_tce.c
fs/exec.c
fs/proc/base.c
fs/proc/task_mmu.c
fs/proc/task_nommu.c
fs/userfaultfd.c
include/linux/mmu_notifier.h
include/linux/sched/mm.h
kernel/fork.c
kernel/futex.c
kernel/sched/core.c
mm/khugepaged.c
mm/ksm.c
mm/mmu_context.c
mm/mmu_notifier.c
mm/oom_kill.c
virt/kvm/kvm_main.c
# mmdrop_async_fn():
include/linux/sched/mm.h
# mmdrop_async():
include/linux/sched/mm.h
kernel/fork.c
# mmget_not_zero():
fs/userfaultfd.c
include/linux/sched/mm.h
mm/oom_kill.c
# mmput():
arch/arc/include/asm/mmu_context.h
arch/arc/kernel/troubleshoot.c
arch/frv/mm/mmu-context.c
arch/powerpc/platforms/cell/spufs/context.c
arch/sparc/include/asm/mmu_context_32.h
drivers/android/binder.c
drivers/gpu/drm/etnaviv/etnaviv_gem.c
drivers/gpu/drm/i915/i915_gem_userptr.c
drivers/infiniband/core/umem.c
drivers/infiniband/core/umem_odp.c
drivers/infiniband/core/uverbs_main.c
drivers/infiniband/hw/mlx4/main.c
drivers/infiniband/hw/mlx5/main.c
drivers/infiniband/hw/usnic/usnic_uiom.c
drivers/iommu/amd_iommu_v2.c
drivers/iommu/intel-svm.c
drivers/lguest/lguest_user.c
drivers/misc/cxl/fault.c
drivers/misc/mic/scif/scif_rma.c
drivers/oprofile/buffer_sync.c
drivers/vfio/vfio_iommu_type1.c
drivers/vhost/vhost.c
drivers/xen/gntdev.c
fs/exec.c
fs/proc/array.c
fs/proc/base.c
fs/proc/task_mmu.c
fs/proc/task_nommu.c
fs/userfaultfd.c
include/linux/sched/mm.h
kernel/cpuset.c
kernel/events/core.c
kernel/events/uprobes.c
kernel/exit.c
kernel/fork.c
kernel/ptrace.c
kernel/sys.c
kernel/trace/trace_output.c
kernel/tsacct.c
mm/memcontrol.c
mm/memory.c
mm/mempolicy.c
mm/migrate.c
mm/mmu_notifier.c
mm/nommu.c
mm/oom_kill.c
mm/process_vm_access.c
mm/rmap.c
mm/swapfile.c
mm/util.c
virt/kvm/async_pf.c
# mmput_async():
include/linux/sched/mm.h
kernel/fork.c
mm/oom_kill.c
# get_task_mm():
arch/arc/kernel/troubleshoot.c
arch/powerpc/platforms/cell/spufs/context.c
drivers/android/binder.c
drivers/gpu/drm/etnaviv/etnaviv_gem.c
drivers/infiniband/core/umem.c
drivers/infiniband/core/umem_odp.c
drivers/infiniband/hw/mlx4/main.c
drivers/infiniband/hw/mlx5/main.c
drivers/infiniband/hw/usnic/usnic_uiom.c
drivers/iommu/amd_iommu_v2.c
drivers/iommu/intel-svm.c
drivers/lguest/lguest_user.c
drivers/misc/cxl/fault.c
drivers/misc/mic/scif/scif_rma.c
drivers/oprofile/buffer_sync.c
drivers/vfio/vfio_iommu_type1.c
drivers/vhost/vhost.c
drivers/xen/gntdev.c
fs/proc/array.c
fs/proc/base.c
fs/proc/task_mmu.c
include/linux/sched/mm.h
kernel/cpuset.c
kernel/events/core.c
kernel/exit.c
kernel/fork.c
kernel/ptrace.c
kernel/sys.c
kernel/trace/trace_output.c
kernel/tsacct.c
mm/memcontrol.c
mm/memory.c
mm/mempolicy.c
mm/migrate.c
mm/mmu_notifier.c
mm/nommu.c
mm/util.c
# mm_access():
fs/proc/base.c
include/linux/sched/mm.h
kernel/fork.c
mm/process_vm_access.c
# mm_release():
arch/arc/include/asm/mmu_context.h
fs/exec.c
include/linux/sched/mm.h
include/uapi/linux/sched.h
kernel/exit.c
kernel/fork.c
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
arch/arc/include/asm/mmu_context.h | 1 +
arch/arc/kernel/troubleshoot.c | 2 ++
arch/arm/mach-rpc/ecard.c | 1 +
arch/frv/mm/mmu-context.c | 1 +
arch/m68k/sun3/mmu_emu.c | 1 +
arch/powerpc/platforms/cell/spufs/context.c | 2 ++
drivers/android/binder.c | 1 +
drivers/gpu/drm/amd/amdkfd/kfd_process.c | 1 +
drivers/gpu/drm/etnaviv/etnaviv_gem.c | 1 +
drivers/gpu/drm/i915/i915_gem_userptr.c | 1 +
drivers/infiniband/core/umem.c | 1 +
drivers/infiniband/core/umem_odp.c | 1 +
drivers/infiniband/hw/hfi1/file_ops.c | 1 +
drivers/infiniband/hw/mlx4/main.c | 2 ++
drivers/infiniband/hw/mlx5/main.c | 1 +
drivers/infiniband/hw/usnic/usnic_uiom.c | 1 +
drivers/iommu/amd_iommu_v2.c | 1 +
drivers/iommu/intel-svm.c | 1 +
drivers/lguest/lguest_user.c | 1 +
drivers/misc/cxl/fault.c | 1 +
drivers/misc/mic/scif/scif_rma.c | 2 ++
drivers/oprofile/buffer_sync.c | 1 +
drivers/vfio/vfio_iommu_spapr_tce.c | 2 ++
drivers/vfio/vfio_iommu_type1.c | 1 +
drivers/vhost/vhost.c | 1 +
drivers/xen/gntdev.c | 1 +
fs/exec.c | 1 +
fs/proc/array.c | 1 +
fs/proc/base.c | 1 +
fs/proc/task_mmu.c | 1 +
fs/proc/task_nommu.c | 2 ++
fs/userfaultfd.c | 1 +
include/linux/sched.h | 52 -------------------------------------------
include/linux/sched/mm.h | 59 +++++++++++++++++++++++++++++++++++++++++++++++++
kernel/cpuset.c | 1 +
kernel/events/core.c | 1 +
kernel/events/uprobes.c | 1 +
kernel/exit.c | 1 +
kernel/fork.c | 1 +
kernel/futex.c | 1 +
kernel/ptrace.c | 1 +
kernel/sched/sched.h | 1 +
kernel/sys.c | 1 +
kernel/trace/trace_output.c | 1 +
kernel/tsacct.c | 1 +
mm/khugepaged.c | 1 +
mm/ksm.c | 1 +
mm/memcontrol.c | 1 +
mm/memory.c | 1 +
mm/mempolicy.c | 1 +
mm/migrate.c | 1 +
mm/mmu_context.c | 1 +
mm/mmu_notifier.c | 1 +
mm/nommu.c | 1 +
mm/oom_kill.c | 1 +
mm/process_vm_access.c | 1 +
mm/rmap.c | 1 +
mm/swapfile.c | 1 +
mm/util.c | 1 +
virt/kvm/async_pf.c | 1 +
virt/kvm/kvm_main.c | 1 +
61 files changed, 124 insertions(+), 52 deletions(-)
diff --git a/arch/arc/include/asm/mmu_context.h b/arch/arc/include/asm/mmu_context.h
index b0b87f2447f5..64b5ebae1ae8 100644
--- a/arch/arc/include/asm/mmu_context.h
+++ b/arch/arc/include/asm/mmu_context.h
@@ -20,6 +20,7 @@
#include <asm/arcregs.h>
#include <asm/tlb.h>
+#include <linux/sched/mm.h>
#include <asm-generic/mm_hooks.h>
diff --git a/arch/arc/kernel/troubleshoot.c b/arch/arc/kernel/troubleshoot.c
index 82f9bc819f4a..0c48907f56a9 100644
--- a/arch/arc/kernel/troubleshoot.c
+++ b/arch/arc/kernel/troubleshoot.c
@@ -13,6 +13,8 @@
#include <linux/fs_struct.h>
#include <linux/proc_fs.h>
#include <linux/file.h>
+#include <linux/sched/mm.h>
+
#include <asm/arcregs.h>
#include <asm/irqflags.h>
diff --git a/arch/arm/mach-rpc/ecard.c b/arch/arm/mach-rpc/ecard.c
index dc67a7fb3831..6b279d037774 100644
--- a/arch/arm/mach-rpc/ecard.c
+++ b/arch/arm/mach-rpc/ecard.c
@@ -31,6 +31,7 @@
#include <linux/kernel.h>
#include <linux/types.h>
#include <linux/sched.h>
+#include <linux/sched/mm.h>
#include <linux/interrupt.h>
#include <linux/completion.h>
#include <linux/reboot.h>
diff --git a/arch/frv/mm/mmu-context.c b/arch/frv/mm/mmu-context.c
index 81757d55a5b5..a3b4d02de7c0 100644
--- a/arch/frv/mm/mmu-context.c
+++ b/arch/frv/mm/mmu-context.c
@@ -10,6 +10,7 @@
*/
#include <linux/sched.h>
+#include <linux/sched/mm.h>
#include <linux/mm.h>
#include <asm/tlbflush.h>
diff --git a/arch/m68k/sun3/mmu_emu.c b/arch/m68k/sun3/mmu_emu.c
index 0f95134e9b85..c06c07770c87 100644
--- a/arch/m68k/sun3/mmu_emu.c
+++ b/arch/m68k/sun3/mmu_emu.c
@@ -15,6 +15,7 @@
#include <linux/bootmem.h>
#include <linux/bitops.h>
#include <linux/module.h>
+#include <linux/sched/mm.h>
#include <asm/setup.h>
#include <asm/traps.h>
diff --git a/arch/powerpc/platforms/cell/spufs/context.c b/arch/powerpc/platforms/cell/spufs/context.c
index 3b4152faeb1f..b500b17254a0 100644
--- a/arch/powerpc/platforms/cell/spufs/context.c
+++ b/arch/powerpc/platforms/cell/spufs/context.c
@@ -25,6 +25,8 @@
#include <linux/slab.h>
#include <linux/atomic.h>
#include <linux/sched.h>
+#include <linux/sched/mm.h>
+
#include <asm/spu.h>
#include <asm/spu_csa.h>
#include "spufs.h"
diff --git a/drivers/android/binder.c b/drivers/android/binder.c
index 3c71b982bf2a..6e259ad9131f 100644
--- a/drivers/android/binder.c
+++ b/drivers/android/binder.c
@@ -32,6 +32,7 @@
#include <linux/debugfs.h>
#include <linux/rbtree.h>
#include <linux/sched.h>
+#include <linux/sched/mm.h>
#include <linux/seq_file.h>
#include <linux/uaccess.h>
#include <linux/vmalloc.h>
diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_process.c b/drivers/gpu/drm/amd/amdkfd/kfd_process.c
index ef7c8de7060e..771fc24dcf7c 100644
--- a/drivers/gpu/drm/amd/amdkfd/kfd_process.c
+++ b/drivers/gpu/drm/amd/amdkfd/kfd_process.c
@@ -23,6 +23,7 @@
#include <linux/mutex.h>
#include <linux/log2.h>
#include <linux/sched.h>
+#include <linux/sched/mm.h>
#include <linux/slab.h>
#include <linux/amd-iommu.h>
#include <linux/notifier.h>
diff --git a/drivers/gpu/drm/etnaviv/etnaviv_gem.c b/drivers/gpu/drm/etnaviv/etnaviv_gem.c
index aa6e35ddc87f..fb750cfe3c12 100644
--- a/drivers/gpu/drm/etnaviv/etnaviv_gem.c
+++ b/drivers/gpu/drm/etnaviv/etnaviv_gem.c
@@ -16,6 +16,7 @@
#include <linux/spinlock.h>
#include <linux/shmem_fs.h>
+#include <linux/sched/mm.h>
#include "etnaviv_drv.h"
#include "etnaviv_gem.h"
diff --git a/drivers/gpu/drm/i915/i915_gem_userptr.c b/drivers/gpu/drm/i915/i915_gem_userptr.c
index d068af2ec3a3..9c9167590320 100644
--- a/drivers/gpu/drm/i915/i915_gem_userptr.c
+++ b/drivers/gpu/drm/i915/i915_gem_userptr.c
@@ -31,6 +31,7 @@
#include <linux/mmu_notifier.h>
#include <linux/mempolicy.h>
#include <linux/swap.h>
+#include <linux/sched/mm.h>
struct i915_mm_struct {
struct mm_struct *mm;
diff --git a/drivers/infiniband/core/umem.c b/drivers/infiniband/core/umem.c
index 4609b921f899..e30a27b16dc4 100644
--- a/drivers/infiniband/core/umem.c
+++ b/drivers/infiniband/core/umem.c
@@ -35,6 +35,7 @@
#include <linux/mm.h>
#include <linux/dma-mapping.h>
#include <linux/sched.h>
+#include <linux/sched/mm.h>
#include <linux/export.h>
#include <linux/hugetlb.h>
#include <linux/slab.h>
diff --git a/drivers/infiniband/core/umem_odp.c b/drivers/infiniband/core/umem_odp.c
index 6b079a31dced..5d942d91af39 100644
--- a/drivers/infiniband/core/umem_odp.c
+++ b/drivers/infiniband/core/umem_odp.c
@@ -32,6 +32,7 @@
#include <linux/types.h>
#include <linux/sched.h>
+#include <linux/sched/mm.h>
#include <linux/pid.h>
#include <linux/slab.h>
#include <linux/export.h>
diff --git a/drivers/infiniband/hw/hfi1/file_ops.c b/drivers/infiniband/hw/hfi1/file_ops.c
index bd786b7bd30b..d79e28d7d1f1 100644
--- a/drivers/infiniband/hw/hfi1/file_ops.c
+++ b/drivers/infiniband/hw/hfi1/file_ops.c
@@ -48,6 +48,7 @@
#include <linux/cdev.h>
#include <linux/vmalloc.h>
#include <linux/io.h>
+#include <linux/sched/mm.h>
#include <rdma/ib.h>
diff --git a/drivers/infiniband/hw/mlx4/main.c b/drivers/infiniband/hw/mlx4/main.c
index 7031a8dd4d14..83bbe7d07100 100644
--- a/drivers/infiniband/hw/mlx4/main.c
+++ b/drivers/infiniband/hw/mlx4/main.c
@@ -39,6 +39,8 @@
#include <linux/inetdevice.h>
#include <linux/rtnetlink.h>
#include <linux/if_vlan.h>
+#include <linux/sched/mm.h>
+
#include <net/ipv6.h>
#include <net/addrconf.h>
#include <net/devlink.h>
diff --git a/drivers/infiniband/hw/mlx5/main.c b/drivers/infiniband/hw/mlx5/main.c
index d566f6738833..a2393b867fe8 100644
--- a/drivers/infiniband/hw/mlx5/main.c
+++ b/drivers/infiniband/hw/mlx5/main.c
@@ -41,6 +41,7 @@
#include <asm/pat.h>
#endif
#include <linux/sched.h>
+#include <linux/sched/mm.h>
#include <linux/delay.h>
#include <rdma/ib_user_verbs.h>
#include <rdma/ib_addr.h>
diff --git a/drivers/infiniband/hw/usnic/usnic_uiom.c b/drivers/infiniband/hw/usnic/usnic_uiom.c
index 1ccee6ea5bc3..ba868be5af2e 100644
--- a/drivers/infiniband/hw/usnic/usnic_uiom.c
+++ b/drivers/infiniband/hw/usnic/usnic_uiom.c
@@ -35,6 +35,7 @@
#include <linux/mm.h>
#include <linux/dma-mapping.h>
#include <linux/sched.h>
+#include <linux/sched/mm.h>
#include <linux/hugetlb.h>
#include <linux/iommu.h>
#include <linux/workqueue.h>
diff --git a/drivers/iommu/amd_iommu_v2.c b/drivers/iommu/amd_iommu_v2.c
index f8ed8c95b685..063343909b0d 100644
--- a/drivers/iommu/amd_iommu_v2.c
+++ b/drivers/iommu/amd_iommu_v2.c
@@ -22,6 +22,7 @@
#include <linux/profile.h>
#include <linux/module.h>
#include <linux/sched.h>
+#include <linux/sched/mm.h>
#include <linux/iommu.h>
#include <linux/wait.h>
#include <linux/pci.h>
diff --git a/drivers/iommu/intel-svm.c b/drivers/iommu/intel-svm.c
index cb72e0011310..0173634ddcca 100644
--- a/drivers/iommu/intel-svm.c
+++ b/drivers/iommu/intel-svm.c
@@ -16,6 +16,7 @@
#include <linux/intel-iommu.h>
#include <linux/mmu_notifier.h>
#include <linux/sched.h>
+#include <linux/sched/mm.h>
#include <linux/slab.h>
#include <linux/intel-svm.h>
#include <linux/rculist.h>
diff --git a/drivers/lguest/lguest_user.c b/drivers/lguest/lguest_user.c
index 30c60687d277..1a6787bc9386 100644
--- a/drivers/lguest/lguest_user.c
+++ b/drivers/lguest/lguest_user.c
@@ -8,6 +8,7 @@
#include <linux/miscdevice.h>
#include <linux/fs.h>
#include <linux/sched.h>
+#include <linux/sched/mm.h>
#include <linux/file.h>
#include <linux/slab.h>
#include <linux/export.h>
diff --git a/drivers/misc/cxl/fault.c b/drivers/misc/cxl/fault.c
index 377e650a2a1d..e33011e3e7e2 100644
--- a/drivers/misc/cxl/fault.c
+++ b/drivers/misc/cxl/fault.c
@@ -9,6 +9,7 @@
#include <linux/workqueue.h>
#include <linux/sched.h>
+#include <linux/sched/mm.h>
#include <linux/pid.h>
#include <linux/mm.h>
#include <linux/moduleparam.h>
diff --git a/drivers/misc/mic/scif/scif_rma.c b/drivers/misc/mic/scif/scif_rma.c
index f806a4471eb9..d0e9c60f944e 100644
--- a/drivers/misc/mic/scif/scif_rma.c
+++ b/drivers/misc/mic/scif/scif_rma.c
@@ -17,6 +17,8 @@
*/
#include <linux/dma_remapping.h>
#include <linux/pagemap.h>
+#include <linux/sched/mm.h>
+
#include "scif_main.h"
#include "scif_map.h"
diff --git a/drivers/oprofile/buffer_sync.c b/drivers/oprofile/buffer_sync.c
index 642478d35e99..eb0c35994b54 100644
--- a/drivers/oprofile/buffer_sync.c
+++ b/drivers/oprofile/buffer_sync.c
@@ -31,6 +31,7 @@
#include <linux/fs.h>
#include <linux/oprofile.h>
#include <linux/sched.h>
+#include <linux/sched/mm.h>
#include <linux/gfp.h>
#include "oprofile_stats.h"
diff --git a/drivers/vfio/vfio_iommu_spapr_tce.c b/drivers/vfio/vfio_iommu_spapr_tce.c
index 128d10282d16..65f025d79ee3 100644
--- a/drivers/vfio/vfio_iommu_spapr_tce.c
+++ b/drivers/vfio/vfio_iommu_spapr_tce.c
@@ -20,6 +20,8 @@
#include <linux/err.h>
#include <linux/vfio.h>
#include <linux/vmalloc.h>
+#include <linux/sched/mm.h>
+
#include <asm/iommu.h>
#include <asm/tce.h>
#include <asm/mmu_context.h>
diff --git a/drivers/vfio/vfio_iommu_type1.c b/drivers/vfio/vfio_iommu_type1.c
index b3cc33fa6d26..70ea7e3c40e5 100644
--- a/drivers/vfio/vfio_iommu_type1.c
+++ b/drivers/vfio/vfio_iommu_type1.c
@@ -32,6 +32,7 @@
#include <linux/mm.h>
#include <linux/rbtree.h>
#include <linux/sched.h>
+#include <linux/sched/mm.h>
#include <linux/slab.h>
#include <linux/uaccess.h>
#include <linux/vfio.h>
diff --git a/drivers/vhost/vhost.c b/drivers/vhost/vhost.c
index d6432603880c..697d68d7fe20 100644
--- a/drivers/vhost/vhost.c
+++ b/drivers/vhost/vhost.c
@@ -27,6 +27,7 @@
#include <linux/cgroup.h>
#include <linux/module.h>
#include <linux/sort.h>
+#include <linux/sched/mm.h>
#include <linux/interval_tree_generic.h>
#include "vhost.h"
diff --git a/drivers/xen/gntdev.c b/drivers/xen/gntdev.c
index 2ef2b61b69df..c77a0751a311 100644
--- a/drivers/xen/gntdev.c
+++ b/drivers/xen/gntdev.c
@@ -32,6 +32,7 @@
#include <linux/types.h>
#include <linux/uaccess.h>
#include <linux/sched.h>
+#include <linux/sched/mm.h>
#include <linux/spinlock.h>
#include <linux/slab.h>
#include <linux/highmem.h>
diff --git a/fs/exec.c b/fs/exec.c
index e57946610733..533052526292 100644
--- a/fs/exec.c
+++ b/fs/exec.c
@@ -32,6 +32,7 @@
#include <linux/swap.h>
#include <linux/string.h>
#include <linux/init.h>
+#include <linux/sched/mm.h>
#include <linux/pagemap.h>
#include <linux/perf_event.h>
#include <linux/highmem.h>
diff --git a/fs/proc/array.c b/fs/proc/array.c
index fe12b519d09b..61bea3a4ecc5 100644
--- a/fs/proc/array.c
+++ b/fs/proc/array.c
@@ -60,6 +60,7 @@
#include <linux/tty.h>
#include <linux/string.h>
#include <linux/mman.h>
+#include <linux/sched/mm.h>
#include <linux/proc_fs.h>
#include <linux/ioport.h>
#include <linux/uaccess.h>
diff --git a/fs/proc/base.c b/fs/proc/base.c
index c5277d3cdacd..5fae1b946d9f 100644
--- a/fs/proc/base.c
+++ b/fs/proc/base.c
@@ -86,6 +86,7 @@
#include <linux/fs_struct.h>
#include <linux/slab.h>
#include <linux/sched/autogroup.h>
+#include <linux/sched/mm.h>
#include <linux/flex_array.h>
#include <linux/posix-timers.h>
#ifdef CONFIG_HARDWALL
diff --git a/fs/proc/task_mmu.c b/fs/proc/task_mmu.c
index 8f96a49178d0..48f372520322 100644
--- a/fs/proc/task_mmu.c
+++ b/fs/proc/task_mmu.c
@@ -11,6 +11,7 @@
#include <linux/mempolicy.h>
#include <linux/rmap.h>
#include <linux/swap.h>
+#include <linux/sched/mm.h>
#include <linux/swapops.h>
#include <linux/mmu_notifier.h>
#include <linux/page_idle.h>
diff --git a/fs/proc/task_nommu.c b/fs/proc/task_nommu.c
index 37175621e890..cd472962f895 100644
--- a/fs/proc/task_nommu.c
+++ b/fs/proc/task_nommu.c
@@ -7,6 +7,8 @@
#include <linux/ptrace.h>
#include <linux/slab.h>
#include <linux/seq_file.h>
+#include <linux/sched/mm.h>
+
#include "internal.h"
/*
diff --git a/fs/userfaultfd.c b/fs/userfaultfd.c
index 43953e03c356..cd94de7f7bd6 100644
--- a/fs/userfaultfd.c
+++ b/fs/userfaultfd.c
@@ -14,6 +14,7 @@
#include <linux/hashtable.h>
#include <linux/sched.h>
+#include <linux/sched/mm.h>
#include <linux/mm.h>
#include <linux/poll.h>
#include <linux/slab.h>
diff --git a/include/linux/sched.h b/include/linux/sched.h
index 93bb2b0b22fd..07b1e679cd5a 100644
--- a/include/linux/sched.h
+++ b/include/linux/sched.h
@@ -2388,58 +2388,6 @@ static inline unsigned long sigsp(unsigned long sp, struct ksignal *ksig)
return sp;
}
-/*
- * Routines for handling mm_structs
- */
-extern struct mm_struct * mm_alloc(void);
-
-/* mmdrop drops the mm and the page tables */
-extern void __mmdrop(struct mm_struct *);
-static inline void mmdrop(struct mm_struct *mm)
-{
- if (unlikely(atomic_dec_and_test(&mm->mm_count)))
- __mmdrop(mm);
-}
-
-static inline void mmdrop_async_fn(struct work_struct *work)
-{
- struct mm_struct *mm = container_of(work, struct mm_struct, async_put_work);
- __mmdrop(mm);
-}
-
-static inline void mmdrop_async(struct mm_struct *mm)
-{
- if (unlikely(atomic_dec_and_test(&mm->mm_count))) {
- INIT_WORK(&mm->async_put_work, mmdrop_async_fn);
- schedule_work(&mm->async_put_work);
- }
-}
-
-static inline bool mmget_not_zero(struct mm_struct *mm)
-{
- return atomic_inc_not_zero(&mm->mm_users);
-}
-
-/* mmput gets rid of the mappings and all user-space */
-extern void mmput(struct mm_struct *);
-#ifdef CONFIG_MMU
-/* same as above but performs the slow path from the async context. Can
- * be called from the atomic context as well
- */
-extern void mmput_async(struct mm_struct *);
-#endif
-
-/* Grab a reference to a task's mm, if it is not already going away */
-extern struct mm_struct *get_task_mm(struct task_struct *task);
-/*
- * Grab a reference to a task's mm, if it is not already going away
- * and ptrace_may_access with the mode parameter passed to it
- * succeeds.
- */
-extern struct mm_struct *mm_access(struct task_struct *task, unsigned int mode);
-/* Remove the current tasks stale references to the old mm_struct */
-extern void mm_release(struct task_struct *, struct mm_struct *);
-
#ifdef CONFIG_HAVE_COPY_THREAD_TLS
extern int copy_thread_tls(unsigned long, unsigned long, unsigned long,
struct task_struct *, unsigned long);
diff --git a/include/linux/sched/mm.h b/include/linux/sched/mm.h
new file mode 100644
index 000000000000..e3a8f6ca4479
--- /dev/null
+++ b/include/linux/sched/mm.h
@@ -0,0 +1,59 @@
+#ifndef _LINUX_SCHED_MM_H
+#define _LINUX_SCHED_MM_H
+
+#include <linux/kernel.h>
+#include <linux/atomic.h>
+
+/*
+ * Routines for handling mm_structs
+ */
+extern struct mm_struct * mm_alloc(void);
+
+/* mmdrop drops the mm and the page tables */
+extern void __mmdrop(struct mm_struct *);
+static inline void mmdrop(struct mm_struct *mm)
+{
+ if (unlikely(atomic_dec_and_test(&mm->mm_count)))
+ __mmdrop(mm);
+}
+
+static inline void mmdrop_async_fn(struct work_struct *work)
+{
+ struct mm_struct *mm = container_of(work, struct mm_struct, async_put_work);
+ __mmdrop(mm);
+}
+
+static inline void mmdrop_async(struct mm_struct *mm)
+{
+ if (unlikely(atomic_dec_and_test(&mm->mm_count))) {
+ INIT_WORK(&mm->async_put_work, mmdrop_async_fn);
+ schedule_work(&mm->async_put_work);
+ }
+}
+
+static inline bool mmget_not_zero(struct mm_struct *mm)
+{
+ return atomic_inc_not_zero(&mm->mm_users);
+}
+
+/* mmput gets rid of the mappings and all user-space */
+extern void mmput(struct mm_struct *);
+#ifdef CONFIG_MMU
+/* same as above but performs the slow path from the async context. Can
+ * be called from the atomic context as well
+ */
+extern void mmput_async(struct mm_struct *);
+#endif
+
+/* Grab a reference to a task's mm, if it is not already going away */
+extern struct mm_struct *get_task_mm(struct task_struct *task);
+/*
+ * Grab a reference to a task's mm, if it is not already going away
+ * and ptrace_may_access with the mode parameter passed to it
+ * succeeds.
+ */
+extern struct mm_struct *mm_access(struct task_struct *task, unsigned int mode);
+/* Remove the current tasks stale references to the old mm_struct */
+extern void mm_release(struct task_struct *, struct mm_struct *);
+
+#endif /* _LINUX_SCHED_MM_H */
diff --git a/kernel/cpuset.c b/kernel/cpuset.c
index b3088886cd37..a5c46db2855c 100644
--- a/kernel/cpuset.c
+++ b/kernel/cpuset.c
@@ -44,6 +44,7 @@
#include <linux/proc_fs.h>
#include <linux/rcupdate.h>
#include <linux/sched.h>
+#include <linux/sched/mm.h>
#include <linux/seq_file.h>
#include <linux/security.h>
#include <linux/slab.h>
diff --git a/kernel/events/core.c b/kernel/events/core.c
index 70c79475966d..8671277eb94e 100644
--- a/kernel/events/core.c
+++ b/kernel/events/core.c
@@ -47,6 +47,7 @@
#include <linux/namei.h>
#include <linux/parser.h>
#include <linux/sched/clock.h>
+#include <linux/sched/mm.h>
#include "internal.h"
diff --git a/kernel/events/uprobes.c b/kernel/events/uprobes.c
index d416f3baf392..9e17a8cb85d7 100644
--- a/kernel/events/uprobes.c
+++ b/kernel/events/uprobes.c
@@ -27,6 +27,7 @@
#include <linux/pagemap.h> /* read_mapping_page */
#include <linux/slab.h>
#include <linux/sched.h>
+#include <linux/sched/mm.h>
#include <linux/export.h>
#include <linux/rmap.h> /* anon_vma_prepare */
#include <linux/mmu_notifier.h> /* set_pte_at_notify */
diff --git a/kernel/exit.c b/kernel/exit.c
index 4c9bc6e90a45..3a8a5339713d 100644
--- a/kernel/exit.c
+++ b/kernel/exit.c
@@ -7,6 +7,7 @@
#include <linux/mm.h>
#include <linux/slab.h>
#include <linux/sched/autogroup.h>
+#include <linux/sched/mm.h>
#include <linux/interrupt.h>
#include <linux/module.h>
#include <linux/capability.h>
diff --git a/kernel/fork.c b/kernel/fork.c
index 56f281adaa0e..d88370304ad3 100644
--- a/kernel/fork.c
+++ b/kernel/fork.c
@@ -13,6 +13,7 @@
#include <linux/slab.h>
#include <linux/sched/autogroup.h>
+#include <linux/sched/mm.h>
#include <linux/init.h>
#include <linux/unistd.h>
#include <linux/module.h>
diff --git a/kernel/futex.c b/kernel/futex.c
index e41472f33c73..a6d6c87c0051 100644
--- a/kernel/futex.c
+++ b/kernel/futex.c
@@ -62,6 +62,7 @@
#include <linux/ptrace.h>
#include <linux/sched/rt.h>
#include <linux/sched/wake_q.h>
+#include <linux/sched/mm.h>
#include <linux/hugetlb.h>
#include <linux/freezer.h>
#include <linux/bootmem.h>
diff --git a/kernel/ptrace.c b/kernel/ptrace.c
index 49ba7c1ade9d..6fe5a2897912 100644
--- a/kernel/ptrace.c
+++ b/kernel/ptrace.c
@@ -10,6 +10,7 @@
#include <linux/capability.h>
#include <linux/export.h>
#include <linux/sched.h>
+#include <linux/sched/mm.h>
#include <linux/errno.h>
#include <linux/mm.h>
#include <linux/highmem.h>
diff --git a/kernel/sched/sched.h b/kernel/sched/sched.h
index 4d386461f13a..e2307a6c29f1 100644
--- a/kernel/sched/sched.h
+++ b/kernel/sched/sched.h
@@ -5,6 +5,7 @@
#include <linux/sched/rt.h>
#include <linux/sched/clock.h>
#include <linux/sched/wake_q.h>
+#include <linux/sched/mm.h>
#include <linux/u64_stats_sync.h>
#include <linux/sched/deadline.h>
#include <linux/kernel_stat.h>
diff --git a/kernel/sys.c b/kernel/sys.c
index b548eb9c4d1a..bcc15521b58e 100644
--- a/kernel/sys.c
+++ b/kernel/sys.c
@@ -51,6 +51,7 @@
#include <linux/sched.h>
#include <linux/sched/autogroup.h>
#include <linux/sched/loadavg.h>
+#include <linux/sched/mm.h>
#include <linux/rcupdate.h>
#include <linux/uidgid.h>
#include <linux/cred.h>
diff --git a/kernel/trace/trace_output.c b/kernel/trace/trace_output.c
index 5a9dc5bf354b..05b4b4d8a751 100644
--- a/kernel/trace/trace_output.c
+++ b/kernel/trace/trace_output.c
@@ -9,6 +9,7 @@
#include <linux/mutex.h>
#include <linux/ftrace.h>
#include <linux/sched/clock.h>
+#include <linux/sched/mm.h>
#include "trace_output.h"
diff --git a/kernel/tsacct.c b/kernel/tsacct.c
index 5c21f0535056..571a2d3821d8 100644
--- a/kernel/tsacct.c
+++ b/kernel/tsacct.c
@@ -18,6 +18,7 @@
#include <linux/kernel.h>
#include <linux/sched.h>
+#include <linux/sched/mm.h>
#include <linux/tsacct_kern.h>
#include <linux/acct.h>
#include <linux/jiffies.h>
diff --git a/mm/khugepaged.c b/mm/khugepaged.c
index 77ae3239c3de..ddf0a9b00d45 100644
--- a/mm/khugepaged.c
+++ b/mm/khugepaged.c
@@ -2,6 +2,7 @@
#include <linux/mm.h>
#include <linux/sched.h>
+#include <linux/sched/mm.h>
#include <linux/mmu_notifier.h>
#include <linux/rmap.h>
#include <linux/swap.h>
diff --git a/mm/ksm.c b/mm/ksm.c
index 9ae6011a41f8..7d17469f18ac 100644
--- a/mm/ksm.c
+++ b/mm/ksm.c
@@ -19,6 +19,7 @@
#include <linux/fs.h>
#include <linux/mman.h>
#include <linux/sched.h>
+#include <linux/sched/mm.h>
#include <linux/rwsem.h>
#include <linux/pagemap.h>
#include <linux/rmap.h>
diff --git a/mm/memcontrol.c b/mm/memcontrol.c
index b822e158b319..ee8e8e18815c 100644
--- a/mm/memcontrol.c
+++ b/mm/memcontrol.c
@@ -35,6 +35,7 @@
#include <linux/memcontrol.h>
#include <linux/cgroup.h>
#include <linux/mm.h>
+#include <linux/sched/mm.h>
#include <linux/hugetlb.h>
#include <linux/pagemap.h>
#include <linux/smp.h>
diff --git a/mm/memory.c b/mm/memory.c
index 6bf2b471e30c..da099416fed4 100644
--- a/mm/memory.c
+++ b/mm/memory.c
@@ -40,6 +40,7 @@
#include <linux/kernel_stat.h>
#include <linux/mm.h>
+#include <linux/sched/mm.h>
#include <linux/hugetlb.h>
#include <linux/mman.h>
#include <linux/swap.h>
diff --git a/mm/mempolicy.c b/mm/mempolicy.c
index 1e7873e40c9a..90892416ed75 100644
--- a/mm/mempolicy.c
+++ b/mm/mempolicy.c
@@ -73,6 +73,7 @@
#include <linux/hugetlb.h>
#include <linux/kernel.h>
#include <linux/sched.h>
+#include <linux/sched/mm.h>
#include <linux/nodemask.h>
#include <linux/cpuset.h>
#include <linux/slab.h>
diff --git a/mm/migrate.c b/mm/migrate.c
index 87f4d0f81819..939e1bb258fc 100644
--- a/mm/migrate.c
+++ b/mm/migrate.c
@@ -40,6 +40,7 @@
#include <linux/mmu_notifier.h>
#include <linux/page_idle.h>
#include <linux/page_owner.h>
+#include <linux/sched/mm.h>
#include <asm/tlbflush.h>
diff --git a/mm/mmu_context.c b/mm/mmu_context.c
index 6f4d27c5bb32..6d93bc207e90 100644
--- a/mm/mmu_context.c
+++ b/mm/mmu_context.c
@@ -5,6 +5,7 @@
#include <linux/mm.h>
#include <linux/sched.h>
+#include <linux/sched/mm.h>
#include <linux/mmu_context.h>
#include <linux/export.h>
diff --git a/mm/mmu_notifier.c b/mm/mmu_notifier.c
index f4259e496f83..06b8625cd42c 100644
--- a/mm/mmu_notifier.c
+++ b/mm/mmu_notifier.c
@@ -17,6 +17,7 @@
#include <linux/srcu.h>
#include <linux/rcupdate.h>
#include <linux/sched.h>
+#include <linux/sched/mm.h>
#include <linux/slab.h>
/* global SRCU for all MMs */
diff --git a/mm/nommu.c b/mm/nommu.c
index 24f9f5f39145..8c6bb7836641 100644
--- a/mm/nommu.c
+++ b/mm/nommu.c
@@ -17,6 +17,7 @@
#include <linux/export.h>
#include <linux/mm.h>
+#include <linux/sched/mm.h>
#include <linux/vmacache.h>
#include <linux/mman.h>
#include <linux/swap.h>
diff --git a/mm/oom_kill.c b/mm/oom_kill.c
index ec9f11d4f094..c8fcc8f78e42 100644
--- a/mm/oom_kill.c
+++ b/mm/oom_kill.c
@@ -22,6 +22,7 @@
#include <linux/err.h>
#include <linux/gfp.h>
#include <linux/sched.h>
+#include <linux/sched/mm.h>
#include <linux/swap.h>
#include <linux/timex.h>
#include <linux/jiffies.h>
diff --git a/mm/process_vm_access.c b/mm/process_vm_access.c
index 84d0c7eada2b..8973cd231ece 100644
--- a/mm/process_vm_access.c
+++ b/mm/process_vm_access.c
@@ -12,6 +12,7 @@
#include <linux/mm.h>
#include <linux/uio.h>
#include <linux/sched.h>
+#include <linux/sched/mm.h>
#include <linux/highmem.h>
#include <linux/ptrace.h>
#include <linux/slab.h>
diff --git a/mm/rmap.c b/mm/rmap.c
index 91619fd70939..c66cfaa9af36 100644
--- a/mm/rmap.c
+++ b/mm/rmap.c
@@ -46,6 +46,7 @@
*/
#include <linux/mm.h>
+#include <linux/sched/mm.h>
#include <linux/pagemap.h>
#include <linux/swap.h>
#include <linux/swapops.h>
diff --git a/mm/swapfile.c b/mm/swapfile.c
index 4761701d1721..89faf0a26bd9 100644
--- a/mm/swapfile.c
+++ b/mm/swapfile.c
@@ -6,6 +6,7 @@
*/
#include <linux/mm.h>
+#include <linux/sched/mm.h>
#include <linux/hugetlb.h>
#include <linux/mman.h>
#include <linux/slab.h>
diff --git a/mm/util.c b/mm/util.c
index 3cb2164f4099..f94dc2fd0609 100644
--- a/mm/util.c
+++ b/mm/util.c
@@ -5,6 +5,7 @@
#include <linux/export.h>
#include <linux/err.h>
#include <linux/sched.h>
+#include <linux/sched/mm.h>
#include <linux/security.h>
#include <linux/swap.h>
#include <linux/swapops.h>
diff --git a/virt/kvm/async_pf.c b/virt/kvm/async_pf.c
index 3815e940fbea..4c34fdac745e 100644
--- a/virt/kvm/async_pf.c
+++ b/virt/kvm/async_pf.c
@@ -24,6 +24,7 @@
#include <linux/slab.h>
#include <linux/module.h>
#include <linux/mmu_context.h>
+#include <linux/sched/mm.h>
#include "async_pf.h"
#include <trace/events/kvm.h>
diff --git a/virt/kvm/kvm_main.c b/virt/kvm/kvm_main.c
index 482612b4e496..7fdaff90ec05 100644
--- a/virt/kvm/kvm_main.c
+++ b/virt/kvm/kvm_main.c
@@ -33,6 +33,7 @@
#include <linux/syscore_ops.h>
#include <linux/cpu.h>
#include <linux/sched.h>
+#include <linux/sched/mm.h>
#include <linux/cpumask.h>
#include <linux/smp.h>
#include <linux/anon_inodes.h>
--
2.7.4
^ permalink raw reply related [flat|nested] 119+ messages in thread
* [PATCH 19/89] sched/core: Move task->mm coredumping related defines and methods from <linux/sched.h> to <linux/sched/coredump.h>
2017-02-06 13:28 [PATCH 00/89] Major reorganization of <linux/sched.h> Ingo Molnar
` (17 preceding siblings ...)
2017-02-06 13:28 ` [PATCH 18/89] sched/core: Move task->mm handling methods to <linux/sched/mm.h> Ingo Molnar
@ 2017-02-06 13:28 ` Ingo Molnar
2017-02-06 13:28 ` [PATCH 20/89] sched/headers, signals: Separate out task_struct::signal and task_struct::sighand types and accessors into <linux/sched/signal.h> Ingo Molnar
` (71 subsequent siblings)
90 siblings, 0 replies; 119+ messages in thread
From: Ingo Molnar @ 2017-02-06 13:28 UTC (permalink / raw)
To: linux-kernel
Cc: Andrew Morton, Linus Torvalds, Mike Galbraith, Oleg Nesterov,
Peter Zijlstra, Thomas Gleixner
This further reduces the size and complexity of <linux/sched.h>.
These are the definitions and APIs that were moved:
# MMF_*:
fs/binfmt_elf.c
fs/binfmt_elf_fdpic.c
fs/exec.c
fs/proc/base.c
include/linux/khugepaged.h
include/linux/ksm.h
include/linux/sched/coredump.h
kernel/events/uprobes.c
kernel/fork.c
mm/huge_memory.c
mm/khugepaged.c
mm/ksm.c
mm/memory.c
mm/oom_kill.c
# SUID_DUMP_*:
arch/ia64/include/asm/processor.h
fs/coredump.c
fs/exec.c
fs/proc/internal.h
include/linux/sched/coredump.h
kernel/ptrace.c
kernel/sys.c
kernel/sysctl.c
# get_dumpable():
arch/ia64/include/asm/processor.h
fs/coredump.c
fs/exec.c
fs/proc/internal.h
include/linux/sched/coredump.h
kernel/ptrace.c
kernel/sys.c
# set_dumpable():
fs/exec.c
include/linux/sched/coredump.h
kernel/cred.c
kernel/sys.c
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
fs/binfmt_elf.c | 1 +
fs/binfmt_elf_fdpic.c | 1 +
fs/coredump.c | 1 +
fs/exec.c | 1 +
fs/proc/base.c | 1 +
fs/proc/internal.h | 1 +
include/linux/khugepaged.h | 3 ++-
include/linux/ksm.h | 1 +
include/linux/sched.h | 68 ---------------------------------------------------------
include/linux/sched/coredump.h | 74 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
kernel/cred.c | 1 +
kernel/events/uprobes.c | 1 +
kernel/fork.c | 1 +
kernel/ptrace.c | 1 +
kernel/sys.c | 1 +
kernel/sysctl.c | 1 +
mm/huge_memory.c | 1 +
mm/khugepaged.c | 1 +
mm/ksm.c | 1 +
mm/memory.c | 1 +
mm/oom_kill.c | 1 +
21 files changed, 94 insertions(+), 69 deletions(-)
diff --git a/fs/binfmt_elf.c b/fs/binfmt_elf.c
index e7bf01373bc4..12894ae50622 100644
--- a/fs/binfmt_elf.c
+++ b/fs/binfmt_elf.c
@@ -35,6 +35,7 @@
#include <linux/utsname.h>
#include <linux/coredump.h>
#include <linux/sched.h>
+#include <linux/sched/coredump.h>
#include <linux/dax.h>
#include <linux/uaccess.h>
#include <asm/param.h>
diff --git a/fs/binfmt_elf_fdpic.c b/fs/binfmt_elf_fdpic.c
index ffca4bbc3d63..222873bb689c 100644
--- a/fs/binfmt_elf_fdpic.c
+++ b/fs/binfmt_elf_fdpic.c
@@ -35,6 +35,7 @@
#include <linux/elf-fdpic.h>
#include <linux/elfcore.h>
#include <linux/coredump.h>
+#include <linux/sched/coredump.h>
#include <linux/dax.h>
#include <linux/uaccess.h>
diff --git a/fs/coredump.c b/fs/coredump.c
index ae6b05629ca1..23a539b29225 100644
--- a/fs/coredump.c
+++ b/fs/coredump.c
@@ -16,6 +16,7 @@
#include <linux/personality.h>
#include <linux/binfmts.h>
#include <linux/coredump.h>
+#include <linux/sched/coredump.h>
#include <linux/utsname.h>
#include <linux/pid_namespace.h>
#include <linux/module.h>
diff --git a/fs/exec.c b/fs/exec.c
index 533052526292..1be960ef29f5 100644
--- a/fs/exec.c
+++ b/fs/exec.c
@@ -33,6 +33,7 @@
#include <linux/string.h>
#include <linux/init.h>
#include <linux/sched/mm.h>
+#include <linux/sched/coredump.h>
#include <linux/pagemap.h>
#include <linux/perf_event.h>
#include <linux/highmem.h>
diff --git a/fs/proc/base.c b/fs/proc/base.c
index 5fae1b946d9f..ed8981d36674 100644
--- a/fs/proc/base.c
+++ b/fs/proc/base.c
@@ -87,6 +87,7 @@
#include <linux/slab.h>
#include <linux/sched/autogroup.h>
#include <linux/sched/mm.h>
+#include <linux/sched/coredump.h>
#include <linux/flex_array.h>
#include <linux/posix-timers.h>
#ifdef CONFIG_HARDWALL
diff --git a/fs/proc/internal.h b/fs/proc/internal.h
index 2de5194ba378..6980c9a7e367 100644
--- a/fs/proc/internal.h
+++ b/fs/proc/internal.h
@@ -14,6 +14,7 @@
#include <linux/spinlock.h>
#include <linux/atomic.h>
#include <linux/binfmts.h>
+#include <linux/sched/coredump.h>
struct ctl_table_header;
struct mempolicy;
diff --git a/include/linux/khugepaged.h b/include/linux/khugepaged.h
index 1e032a1ddb3e..5d9a400af509 100644
--- a/include/linux/khugepaged.h
+++ b/include/linux/khugepaged.h
@@ -1,7 +1,8 @@
#ifndef _LINUX_KHUGEPAGED_H
#define _LINUX_KHUGEPAGED_H
-#include <linux/sched.h> /* MMF_VM_HUGEPAGE */
+#include <linux/sched/coredump.h> /* MMF_VM_HUGEPAGE */
+
#ifdef CONFIG_TRANSPARENT_HUGEPAGE
extern struct attribute_group khugepaged_attr_group;
diff --git a/include/linux/ksm.h b/include/linux/ksm.h
index 481c8c4627ca..e1cfda4bee58 100644
--- a/include/linux/ksm.h
+++ b/include/linux/ksm.h
@@ -12,6 +12,7 @@
#include <linux/pagemap.h>
#include <linux/rmap.h>
#include <linux/sched.h>
+#include <linux/sched/coredump.h>
struct stable_node;
struct mem_cgroup;
diff --git a/include/linux/sched.h b/include/linux/sched.h
index 07b1e679cd5a..301524b91596 100644
--- a/include/linux/sched.h
+++ b/include/linux/sched.h
@@ -365,74 +365,6 @@ arch_get_unmapped_area_topdown(struct file *filp, unsigned long addr,
static inline void arch_pick_mmap_layout(struct mm_struct *mm) {}
#endif
-#define SUID_DUMP_DISABLE 0 /* No setuid dumping */
-#define SUID_DUMP_USER 1 /* Dump as user of process */
-#define SUID_DUMP_ROOT 2 /* Dump as root */
-
-/* mm flags */
-
-/* for SUID_DUMP_* above */
-#define MMF_DUMPABLE_BITS 2
-#define MMF_DUMPABLE_MASK ((1 << MMF_DUMPABLE_BITS) - 1)
-
-extern void set_dumpable(struct mm_struct *mm, int value);
-/*
- * This returns the actual value of the suid_dumpable flag. For things
- * that are using this for checking for privilege transitions, it must
- * test against SUID_DUMP_USER rather than treating it as a boolean
- * value.
- */
-static inline int __get_dumpable(unsigned long mm_flags)
-{
- return mm_flags & MMF_DUMPABLE_MASK;
-}
-
-static inline int get_dumpable(struct mm_struct *mm)
-{
- return __get_dumpable(mm->flags);
-}
-
-/* coredump filter bits */
-#define MMF_DUMP_ANON_PRIVATE 2
-#define MMF_DUMP_ANON_SHARED 3
-#define MMF_DUMP_MAPPED_PRIVATE 4
-#define MMF_DUMP_MAPPED_SHARED 5
-#define MMF_DUMP_ELF_HEADERS 6
-#define MMF_DUMP_HUGETLB_PRIVATE 7
-#define MMF_DUMP_HUGETLB_SHARED 8
-#define MMF_DUMP_DAX_PRIVATE 9
-#define MMF_DUMP_DAX_SHARED 10
-
-#define MMF_DUMP_FILTER_SHIFT MMF_DUMPABLE_BITS
-#define MMF_DUMP_FILTER_BITS 9
-#define MMF_DUMP_FILTER_MASK \
- (((1 << MMF_DUMP_FILTER_BITS) - 1) << MMF_DUMP_FILTER_SHIFT)
-#define MMF_DUMP_FILTER_DEFAULT \
- ((1 << MMF_DUMP_ANON_PRIVATE) | (1 << MMF_DUMP_ANON_SHARED) |\
- (1 << MMF_DUMP_HUGETLB_PRIVATE) | MMF_DUMP_MASK_DEFAULT_ELF)
-
-#ifdef CONFIG_CORE_DUMP_DEFAULT_ELF_HEADERS
-# define MMF_DUMP_MASK_DEFAULT_ELF (1 << MMF_DUMP_ELF_HEADERS)
-#else
-# define MMF_DUMP_MASK_DEFAULT_ELF 0
-#endif
- /* leave room for more dump flags */
-#define MMF_VM_MERGEABLE 16 /* KSM may merge identical pages */
-#define MMF_VM_HUGEPAGE 17 /* set when VM_HUGEPAGE is set on vma */
-/*
- * This one-shot flag is dropped due to necessity of changing exe once again
- * on NFS restore
- */
-//#define MMF_EXE_FILE_CHANGED 18 /* see prctl_set_mm_exe_file() */
-
-#define MMF_HAS_UPROBES 19 /* has uprobes */
-#define MMF_RECALC_UPROBES 20 /* MMF_HAS_UPROBES can be wrong */
-#define MMF_OOM_SKIP 21 /* mm is of no interest for the OOM killer */
-#define MMF_UNSTABLE 22 /* mm is unstable for copy_from_user */
-#define MMF_HUGE_ZERO_PAGE 23 /* mm has ever used the global huge zero page */
-
-#define MMF_INIT_MASK (MMF_DUMPABLE_MASK | MMF_DUMP_FILTER_MASK)
-
struct sighand_struct {
atomic_t count;
struct k_sigaction action[_NSIG];
diff --git a/include/linux/sched/coredump.h b/include/linux/sched/coredump.h
new file mode 100644
index 000000000000..69eedcef8f03
--- /dev/null
+++ b/include/linux/sched/coredump.h
@@ -0,0 +1,74 @@
+#ifndef _LINUX_SCHED_COREDUMP_H
+#define _LINUX_SCHED_COREDUMP_H
+
+#include <linux/mm_types.h>
+
+#define SUID_DUMP_DISABLE 0 /* No setuid dumping */
+#define SUID_DUMP_USER 1 /* Dump as user of process */
+#define SUID_DUMP_ROOT 2 /* Dump as root */
+
+/* mm flags */
+
+/* for SUID_DUMP_* above */
+#define MMF_DUMPABLE_BITS 2
+#define MMF_DUMPABLE_MASK ((1 << MMF_DUMPABLE_BITS) - 1)
+
+extern void set_dumpable(struct mm_struct *mm, int value);
+/*
+ * This returns the actual value of the suid_dumpable flag. For things
+ * that are using this for checking for privilege transitions, it must
+ * test against SUID_DUMP_USER rather than treating it as a boolean
+ * value.
+ */
+static inline int __get_dumpable(unsigned long mm_flags)
+{
+ return mm_flags & MMF_DUMPABLE_MASK;
+}
+
+static inline int get_dumpable(struct mm_struct *mm)
+{
+ return __get_dumpable(mm->flags);
+}
+
+/* coredump filter bits */
+#define MMF_DUMP_ANON_PRIVATE 2
+#define MMF_DUMP_ANON_SHARED 3
+#define MMF_DUMP_MAPPED_PRIVATE 4
+#define MMF_DUMP_MAPPED_SHARED 5
+#define MMF_DUMP_ELF_HEADERS 6
+#define MMF_DUMP_HUGETLB_PRIVATE 7
+#define MMF_DUMP_HUGETLB_SHARED 8
+#define MMF_DUMP_DAX_PRIVATE 9
+#define MMF_DUMP_DAX_SHARED 10
+
+#define MMF_DUMP_FILTER_SHIFT MMF_DUMPABLE_BITS
+#define MMF_DUMP_FILTER_BITS 9
+#define MMF_DUMP_FILTER_MASK \
+ (((1 << MMF_DUMP_FILTER_BITS) - 1) << MMF_DUMP_FILTER_SHIFT)
+#define MMF_DUMP_FILTER_DEFAULT \
+ ((1 << MMF_DUMP_ANON_PRIVATE) | (1 << MMF_DUMP_ANON_SHARED) |\
+ (1 << MMF_DUMP_HUGETLB_PRIVATE) | MMF_DUMP_MASK_DEFAULT_ELF)
+
+#ifdef CONFIG_CORE_DUMP_DEFAULT_ELF_HEADERS
+# define MMF_DUMP_MASK_DEFAULT_ELF (1 << MMF_DUMP_ELF_HEADERS)
+#else
+# define MMF_DUMP_MASK_DEFAULT_ELF 0
+#endif
+ /* leave room for more dump flags */
+#define MMF_VM_MERGEABLE 16 /* KSM may merge identical pages */
+#define MMF_VM_HUGEPAGE 17 /* set when VM_HUGEPAGE is set on vma */
+/*
+ * This one-shot flag is dropped due to necessity of changing exe once again
+ * on NFS restore
+ */
+//#define MMF_EXE_FILE_CHANGED 18 /* see prctl_set_mm_exe_file() */
+
+#define MMF_HAS_UPROBES 19 /* has uprobes */
+#define MMF_RECALC_UPROBES 20 /* MMF_HAS_UPROBES can be wrong */
+#define MMF_OOM_SKIP 21 /* mm is of no interest for the OOM killer */
+#define MMF_UNSTABLE 22 /* mm is unstable for copy_from_user */
+#define MMF_HUGE_ZERO_PAGE 23 /* mm has ever used the global huge zero page */
+
+#define MMF_INIT_MASK (MMF_DUMPABLE_MASK | MMF_DUMP_FILTER_MASK)
+
+#endif /* _LINUX_SCHED_COREDUMP_H */
diff --git a/kernel/cred.c b/kernel/cred.c
index 5f264fb5737d..2bc66075740f 100644
--- a/kernel/cred.c
+++ b/kernel/cred.c
@@ -12,6 +12,7 @@
#include <linux/cred.h>
#include <linux/slab.h>
#include <linux/sched.h>
+#include <linux/sched/coredump.h>
#include <linux/key.h>
#include <linux/keyctl.h>
#include <linux/init_task.h>
diff --git a/kernel/events/uprobes.c b/kernel/events/uprobes.c
index 9e17a8cb85d7..b1dc82bd58fe 100644
--- a/kernel/events/uprobes.c
+++ b/kernel/events/uprobes.c
@@ -28,6 +28,7 @@
#include <linux/slab.h>
#include <linux/sched.h>
#include <linux/sched/mm.h>
+#include <linux/sched/coredump.h>
#include <linux/export.h>
#include <linux/rmap.h> /* anon_vma_prepare */
#include <linux/mmu_notifier.h> /* set_pte_at_notify */
diff --git a/kernel/fork.c b/kernel/fork.c
index d88370304ad3..ab86fd8667d8 100644
--- a/kernel/fork.c
+++ b/kernel/fork.c
@@ -14,6 +14,7 @@
#include <linux/slab.h>
#include <linux/sched/autogroup.h>
#include <linux/sched/mm.h>
+#include <linux/sched/coredump.h>
#include <linux/init.h>
#include <linux/unistd.h>
#include <linux/module.h>
diff --git a/kernel/ptrace.c b/kernel/ptrace.c
index 6fe5a2897912..bcdbdc19eb35 100644
--- a/kernel/ptrace.c
+++ b/kernel/ptrace.c
@@ -11,6 +11,7 @@
#include <linux/export.h>
#include <linux/sched.h>
#include <linux/sched/mm.h>
+#include <linux/sched/coredump.h>
#include <linux/errno.h>
#include <linux/mm.h>
#include <linux/highmem.h>
diff --git a/kernel/sys.c b/kernel/sys.c
index bcc15521b58e..b245d9d69936 100644
--- a/kernel/sys.c
+++ b/kernel/sys.c
@@ -52,6 +52,7 @@
#include <linux/sched/autogroup.h>
#include <linux/sched/loadavg.h>
#include <linux/sched/mm.h>
+#include <linux/sched/coredump.h>
#include <linux/rcupdate.h>
#include <linux/uidgid.h>
#include <linux/cred.h>
diff --git a/kernel/sysctl.c b/kernel/sysctl.c
index bb260ceb3718..acf0a5a06da7 100644
--- a/kernel/sysctl.c
+++ b/kernel/sysctl.c
@@ -63,6 +63,7 @@
#include <linux/capability.h>
#include <linux/binfmts.h>
#include <linux/sched/sysctl.h>
+#include <linux/sched/coredump.h>
#include <linux/kexec.h>
#include <linux/bpf.h>
#include <linux/mount.h>
diff --git a/mm/huge_memory.c b/mm/huge_memory.c
index 5f3ad65c85de..02c0287586e5 100644
--- a/mm/huge_memory.c
+++ b/mm/huge_memory.c
@@ -9,6 +9,7 @@
#include <linux/mm.h>
#include <linux/sched.h>
+#include <linux/sched/coredump.h>
#include <linux/highmem.h>
#include <linux/hugetlb.h>
#include <linux/mmu_notifier.h>
diff --git a/mm/khugepaged.c b/mm/khugepaged.c
index ddf0a9b00d45..147e4901deaa 100644
--- a/mm/khugepaged.c
+++ b/mm/khugepaged.c
@@ -3,6 +3,7 @@
#include <linux/mm.h>
#include <linux/sched.h>
#include <linux/sched/mm.h>
+#include <linux/sched/coredump.h>
#include <linux/mmu_notifier.h>
#include <linux/rmap.h>
#include <linux/swap.h>
diff --git a/mm/ksm.c b/mm/ksm.c
index 7d17469f18ac..fb61ec4d3616 100644
--- a/mm/ksm.c
+++ b/mm/ksm.c
@@ -20,6 +20,7 @@
#include <linux/mman.h>
#include <linux/sched.h>
#include <linux/sched/mm.h>
+#include <linux/sched/coredump.h>
#include <linux/rwsem.h>
#include <linux/pagemap.h>
#include <linux/rmap.h>
diff --git a/mm/memory.c b/mm/memory.c
index da099416fed4..9967bd79c8a8 100644
--- a/mm/memory.c
+++ b/mm/memory.c
@@ -41,6 +41,7 @@
#include <linux/kernel_stat.h>
#include <linux/mm.h>
#include <linux/sched/mm.h>
+#include <linux/sched/coredump.h>
#include <linux/hugetlb.h>
#include <linux/mman.h>
#include <linux/swap.h>
diff --git a/mm/oom_kill.c b/mm/oom_kill.c
index c8fcc8f78e42..4c75d87613f7 100644
--- a/mm/oom_kill.c
+++ b/mm/oom_kill.c
@@ -23,6 +23,7 @@
#include <linux/gfp.h>
#include <linux/sched.h>
#include <linux/sched/mm.h>
+#include <linux/sched/coredump.h>
#include <linux/swap.h>
#include <linux/timex.h>
#include <linux/jiffies.h>
--
2.7.4
^ permalink raw reply related [flat|nested] 119+ messages in thread
* [PATCH 20/89] sched/headers, signals: Separate out task_struct::signal and task_struct::sighand types and accessors into <linux/sched/signal.h>
2017-02-06 13:28 [PATCH 00/89] Major reorganization of <linux/sched.h> Ingo Molnar
` (18 preceding siblings ...)
2017-02-06 13:28 ` [PATCH 19/89] sched/core: Move task->mm coredumping related defines and methods from <linux/sched.h> to <linux/sched/coredump.h> Ingo Molnar
@ 2017-02-06 13:28 ` Ingo Molnar
2017-02-06 21:11 ` Linus Torvalds
2017-02-06 13:28 ` [PATCH 21/89] sched/headers: Remove unused 'task_can_switch_user()' prototype Ingo Molnar
` (70 subsequent siblings)
90 siblings, 1 reply; 119+ messages in thread
From: Ingo Molnar @ 2017-02-06 13:28 UTC (permalink / raw)
To: linux-kernel
Cc: Andrew Morton, Linus Torvalds, Mike Galbraith, Oleg Nesterov,
Peter Zijlstra, Thomas Gleixner
task_struct::signal and task_struct::sighand are pointers, which would normally make it
straightforward to not define those types in sched.h.
That is not so, because the types are accompanied by a myriad of APIs (macros and inline
functions) that dereference them.
Split the types and the APIs out of sched.h and put them into a new header, <linux/sched/signal.h>.
With this change sched.h does not know about 'struct signal' and 'struct sighand' anymore,
trying to put accessors into sched.h as a test fails the following way:
./include/linux/sched.h: In function ‘test_signal_types’:
./include/linux/sched.h:2461:18: error: dereferencing pointer to incomplete type ‘struct signal_struct’
^
This reduces the size and complexity of sched.h significantly.
Update all headers and .c code that relied on getting the signal handling
functionality from <linux/sched.h> to include <linux/sched/signal.h>.
The list of affected files was partly generated by grepping for the APIs,
and partly by doing coverage build testing, both all[yes|mod|def|no]config
builds on 64-bit and 32-bit x86, and an array of cross-architecture builds.
Nevertheless some (trivial) build breakage is still expected related to rare
Kconfig combinations and in-flight patches to various kernel code, but most
of it should be handled by this patch.
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
arch/alpha/kernel/osf_sys.c | 2 +-
arch/alpha/kernel/signal.c | 2 +-
arch/alpha/kernel/traps.c | 2 +-
arch/alpha/mm/fault.c | 2 +-
arch/arc/kernel/traps.c | 2 +-
arch/arc/mm/fault.c | 2 +-
arch/arm/kernel/ptrace.c | 2 +-
arch/arm/kernel/traps.c | 2 +-
arch/arm/mm/alignment.c | 2 +-
arch/arm/mm/fault.c | 2 +-
arch/arm/mm/init.c | 1 +
arch/arm/mm/mmap.c | 2 +-
arch/arm/vfp/vfpmodule.c | 2 +-
arch/arm64/kernel/fpsimd.c | 2 +-
arch/arm64/kernel/ptrace.c | 2 +-
arch/arm64/kernel/traps.c | 2 +-
arch/arm64/mm/fault.c | 2 +-
arch/arm64/mm/mmap.c | 2 +-
arch/avr32/kernel/traps.c | 2 +-
arch/blackfin/kernel/trace.c | 2 +-
arch/blackfin/kernel/traps.c | 1 +
arch/cris/mm/fault.c | 1 +
arch/frv/kernel/traps.c | 2 +-
arch/h8300/kernel/ptrace_s.c | 2 +-
arch/hexagon/kernel/traps.c | 2 +-
arch/hexagon/mm/vm_fault.c | 1 +
arch/ia64/kernel/asm-offsets.c | 2 +-
arch/ia64/kernel/brl_emu.c | 2 +-
arch/ia64/kernel/mca.c | 2 +-
arch/ia64/kernel/traps.c | 2 +-
arch/ia64/kernel/unaligned.c | 2 +-
arch/ia64/mm/fault.c | 2 +-
arch/ia64/mm/init.c | 1 +
arch/mips/kernel/branch.c | 2 +-
arch/mips/kernel/signal_o32.c | 1 +
arch/mips/mm/mmap.c | 2 +-
arch/mips/sgi-ip22/ip22-berr.c | 2 +-
arch/mips/sgi-ip22/ip22-reset.c | 2 +-
arch/mn10300/kernel/fpu.c | 2 +
arch/openrisc/mm/fault.c | 2 +-
arch/parisc/kernel/sys_parisc.c | 1 +
arch/parisc/kernel/unaligned.c | 2 +-
arch/parisc/math-emu/driver.c | 3 +-
arch/powerpc/kvm/book3s_64_vio.c | 1 +
arch/powerpc/mm/mmap.c | 2 +-
arch/powerpc/mm/mmu_context_iommu.c | 2 +-
arch/powerpc/platforms/cell/spufs/fault.c | 2 +-
arch/powerpc/xmon/xmon.c | 2 +-
arch/s390/kernel/nmi.c | 3 +
arch/s390/mm/mmap.c | 1 +
arch/score/kernel/traps.c | 2 +-
arch/sh/kernel/cpu/sh2a/fpu.c | 2 +-
arch/sh/kernel/hw_breakpoint.c | 1 +
arch/sh/kernel/traps.c | 2 +
arch/sh/math-emu/math.c | 2 +-
arch/sh/mm/asids-debugfs.c | 2 +
arch/sh/mm/fault.c | 1 +
arch/sparc/kernel/sys_sparc_32.c | 2 +-
arch/sparc/kernel/sys_sparc_64.c | 2 +-
arch/sparc/kernel/unaligned_32.c | 2 +-
arch/tile/mm/mmap.c | 2 +-
arch/um/drivers/line.c | 3 +-
arch/um/kernel/reboot.c | 2 +-
arch/um/kernel/skas/mmu.c | 3 +-
arch/um/kernel/tlb.c | 3 +-
arch/um/kernel/trap.c | 2 +-
arch/unicore32/kernel/fpu-ucf64.c | 2 +-
arch/unicore32/kernel/traps.c | 1 +
arch/unicore32/mm/fault.c | 2 +-
arch/x86/entry/vsyscall/vsyscall_64.c | 1 +
arch/x86/kernel/cpu/intel_rdt_rdtgroup.c | 2 +-
arch/x86/kvm/mmu.c | 1 +
arch/x86/mm/mmap.c | 2 +-
arch/xtensa/kernel/traps.c | 2 +-
drivers/android/binder.c | 2 +-
drivers/block/drbd/drbd_int.h | 2 +-
drivers/char/snsc_event.c | 2 +-
drivers/gpu/drm/amd/amdkfd/kfd_events.c | 2 +-
drivers/gpu/drm/drm_lock.c | 2 +
drivers/gpu/drm/ttm/ttm_lock.c | 2 +-
drivers/infiniband/core/umem.c | 2 +-
drivers/infiniband/hw/hfi1/user_pages.c | 2 +-
drivers/infiniband/hw/qib/qib_user_pages.c | 1 +
drivers/infiniband/hw/usnic/usnic_uiom.c | 2 +-
drivers/isdn/i4l/isdn_tty.c | 1 +
drivers/isdn/mISDN/l1oip_core.c | 2 +
drivers/md/md.c | 1 +
drivers/md/raid1.c | 3 +
drivers/md/raid5.c | 2 +
drivers/misc/genwqe/card_dev.c | 2 +-
drivers/misc/mic/cosm/cosm_scif_server.c | 2 +
drivers/misc/mic/cosm_client/cosm_scif_client.c | 2 +
drivers/misc/mic/scif/scif_rma.c | 1 +
drivers/net/slip/slip.c | 2 +-
drivers/net/wireless/broadcom/brcm80211/brcmfmac/sdio.c | 2 +-
drivers/parisc/power.c | 2 +-
drivers/ps3/ps3-sys-manager.c | 1 +
drivers/s390/char/fs3270.c | 1 +
drivers/s390/char/keyboard.c | 2 +-
drivers/scsi/bnx2fc/bnx2fc.h | 2 +-
drivers/scsi/bnx2i/bnx2i.h | 2 +-
drivers/scsi/libiscsi.c | 1 +
drivers/staging/android/lowmemorykiller.c | 2 +-
drivers/staging/lustre/lnet/libcfs/linux/linux-prim.c | 2 +-
drivers/staging/rtl8188eu/include/osdep_service.h | 2 +-
drivers/staging/rtl8712/osdep_service.h | 2 +-
drivers/staging/rtl8712/rtl8712_cmd.c | 1 +
drivers/staging/vc04_services/interface/vchiq_arm/vchiq_arm.c | 1 +
drivers/staging/vc04_services/interface/vchiq_arm/vchiq_util.h | 2 +-
drivers/target/iscsi/iscsi_target.c | 1 +
drivers/target/iscsi/iscsi_target_erl0.c | 2 +
drivers/target/iscsi/iscsi_target_login.c | 1 +
drivers/target/iscsi/iscsi_target_nego.c | 1 +
drivers/tty/pty.c | 2 +-
drivers/tty/sysrq.c | 2 +-
drivers/tty/tty_io.c | 2 +-
drivers/tty/vt/keyboard.c | 2 +-
drivers/tty/vt/vt.c | 2 +-
drivers/tty/vt/vt_ioctl.c | 2 +-
drivers/usb/atm/usbatm.c | 2 +-
drivers/usb/core/devio.c | 1 +
drivers/usb/gadget/function/f_mass_storage.c | 1 +
drivers/vfio/vfio_iommu_spapr_tce.c | 1 +
drivers/vfio/vfio_iommu_type1.c | 2 +-
drivers/w1/w1_family.c | 2 +-
drivers/w1/w1_int.c | 1 +
fs/attr.c | 1 +
fs/autofs4/waitq.c | 1 +
fs/cifs/connect.c | 1 +
fs/coda/upcall.c | 2 +-
fs/coredump.c | 2 +-
fs/exec.c | 1 +
fs/file.c | 2 +-
fs/fs_struct.c | 2 +-
fs/jffs2/background.c | 2 +-
fs/lockd/svc.c | 2 +-
fs/ncpfs/inode.c | 1 +
fs/ncpfs/sock.c | 1 +
fs/nfs/callback.c | 1 +
fs/nfsd/nfssvc.c | 2 +-
fs/proc/fd.c | 2 +-
fs/select.c | 4 +-
include/linux/oom.h | 2 +-
include/linux/ptrace.h | 1 +
include/linux/sched.h | 496 +---------------------------
include/linux/sched/signal.h | 505 +++++++++++++++++++++++++++++
include/linux/signalfd.h | 2 +-
include/linux/taskstats_kern.h | 2 +-
ipc/mqueue.c | 1 +
kernel/bpf/syscall.c | 1 +
kernel/cpu.c | 2 +-
kernel/debug/gdbstub.c | 1 +
kernel/debug/kdb/kdb_bt.c | 2 +-
kernel/hung_task.c | 2 +
kernel/rcu/update.c | 2 +-
kernel/sched/sched.h | 1 +
kernel/time/itimer.c | 1 +
kernel/time/posix-cpu-timers.c | 2 +-
kernel/time/tick-sched.c | 2 +-
kernel/tracepoint.c | 2 +-
kernel/tsacct.c | 2 +-
kernel/user_namespace.c | 1 +
lib/is_single_threaded.c | 3 +-
mm/filemap.c | 1 +
mm/kmemleak.c | 2 +-
mm/memory-failure.c | 2 +-
mm/vmacache.c | 2 +-
net/9p/client.c | 2 +-
net/atm/common.c | 2 +-
net/ax25/af_ax25.c | 2 +-
net/caif/caif_socket.c | 2 +-
net/core/stream.c | 1 +
net/decnet/af_decnet.c | 2 +-
net/irda/af_irda.c | 1 +
net/netrom/af_netrom.c | 2 +-
net/rose/af_rose.c | 2 +-
net/sctp/socket.c | 1 +
net/sunrpc/svc.c | 2 +-
net/unix/af_unix.c | 2 +-
net/x25/af_x25.c | 2 +-
security/selinux/hooks.c | 2 +-
181 files changed, 706 insertions(+), 614 deletions(-)
diff --git a/arch/alpha/kernel/osf_sys.c b/arch/alpha/kernel/osf_sys.c
index 9d27a7d333dc..568ca29f2ad9 100644
--- a/arch/alpha/kernel/osf_sys.c
+++ b/arch/alpha/kernel/osf_sys.c
@@ -11,7 +11,7 @@
*/
#include <linux/errno.h>
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
#include <linux/kernel.h>
#include <linux/mm.h>
#include <linux/smp.h>
diff --git a/arch/alpha/kernel/signal.c b/arch/alpha/kernel/signal.c
index 17308f925306..b8221f112eee 100644
--- a/arch/alpha/kernel/signal.c
+++ b/arch/alpha/kernel/signal.c
@@ -6,7 +6,7 @@
* 1997-11-02 Modified for POSIX.1b signals by Richard Henderson
*/
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
#include <linux/kernel.h>
#include <linux/signal.h>
#include <linux/errno.h>
diff --git a/arch/alpha/kernel/traps.c b/arch/alpha/kernel/traps.c
index 3328af7c2776..9596cfcbd26f 100644
--- a/arch/alpha/kernel/traps.c
+++ b/arch/alpha/kernel/traps.c
@@ -10,7 +10,7 @@
#include <linux/jiffies.h>
#include <linux/mm.h>
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
#include <linux/tty.h>
#include <linux/delay.h>
#include <linux/module.h>
diff --git a/arch/alpha/mm/fault.c b/arch/alpha/mm/fault.c
index 83e9eee57a55..26ce3dafd8de 100644
--- a/arch/alpha/mm/fault.c
+++ b/arch/alpha/mm/fault.c
@@ -4,7 +4,7 @@
* Copyright (C) 1995 Linus Torvalds
*/
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
#include <linux/kernel.h>
#include <linux/mm.h>
#include <asm/io.h>
diff --git a/arch/arc/kernel/traps.c b/arch/arc/kernel/traps.c
index c927aa84e652..ff83e78d0cfb 100644
--- a/arch/arc/kernel/traps.c
+++ b/arch/arc/kernel/traps.c
@@ -13,7 +13,7 @@
* Rahul Trivedi: Codito Technologies 2004
*/
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
#include <linux/kdebug.h>
#include <linux/uaccess.h>
#include <linux/ptrace.h>
diff --git a/arch/arc/mm/fault.c b/arch/arc/mm/fault.c
index e94e5aa33985..162c97528872 100644
--- a/arch/arc/mm/fault.c
+++ b/arch/arc/mm/fault.c
@@ -9,7 +9,7 @@
#include <linux/signal.h>
#include <linux/interrupt.h>
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
#include <linux/errno.h>
#include <linux/ptrace.h>
#include <linux/uaccess.h>
diff --git a/arch/arm/kernel/ptrace.c b/arch/arm/kernel/ptrace.c
index ce131ed5939d..fa1b63aed27c 100644
--- a/arch/arm/kernel/ptrace.c
+++ b/arch/arm/kernel/ptrace.c
@@ -10,7 +10,7 @@
* published by the Free Software Foundation.
*/
#include <linux/kernel.h>
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
#include <linux/mm.h>
#include <linux/elf.h>
#include <linux/smp.h>
diff --git a/arch/arm/kernel/traps.c b/arch/arm/kernel/traps.c
index 9688ec0c6ef4..dc5f1a22b3c9 100644
--- a/arch/arm/kernel/traps.c
+++ b/arch/arm/kernel/traps.c
@@ -24,7 +24,7 @@
#include <linux/bug.h>
#include <linux/delay.h>
#include <linux/init.h>
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
#include <linux/irq.h>
#include <linux/atomic.h>
diff --git a/arch/arm/mm/alignment.c b/arch/arm/mm/alignment.c
index 7d5f4c736a16..d7fe2de9cc9e 100644
--- a/arch/arm/mm/alignment.c
+++ b/arch/arm/mm/alignment.c
@@ -19,7 +19,7 @@
#include <linux/proc_fs.h>
#include <linux/seq_file.h>
#include <linux/init.h>
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
#include <linux/uaccess.h>
#include <asm/cp15.h>
diff --git a/arch/arm/mm/fault.c b/arch/arm/mm/fault.c
index 3a2e678b8d30..ce07bf408308 100644
--- a/arch/arm/mm/fault.c
+++ b/arch/arm/mm/fault.c
@@ -16,7 +16,7 @@
#include <linux/kprobes.h>
#include <linux/uaccess.h>
#include <linux/page-flags.h>
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
#include <linux/highmem.h>
#include <linux/perf_event.h>
diff --git a/arch/arm/mm/init.c b/arch/arm/mm/init.c
index 370581aeb871..f234aab42f70 100644
--- a/arch/arm/mm/init.c
+++ b/arch/arm/mm/init.c
@@ -13,6 +13,7 @@
#include <linux/init.h>
#include <linux/bootmem.h>
#include <linux/mman.h>
+#include <linux/sched/signal.h>
#include <linux/export.h>
#include <linux/nodemask.h>
#include <linux/initrd.h>
diff --git a/arch/arm/mm/mmap.c b/arch/arm/mm/mmap.c
index 66353caa35b9..d448f9cd7715 100644
--- a/arch/arm/mm/mmap.c
+++ b/arch/arm/mm/mmap.c
@@ -5,7 +5,7 @@
#include <linux/mm.h>
#include <linux/mman.h>
#include <linux/shm.h>
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
#include <linux/io.h>
#include <linux/personality.h>
#include <linux/random.h>
diff --git a/arch/arm/vfp/vfpmodule.c b/arch/arm/vfp/vfpmodule.c
index 569d5a650a4a..a71a48e71fff 100644
--- a/arch/arm/vfp/vfpmodule.c
+++ b/arch/arm/vfp/vfpmodule.c
@@ -15,7 +15,7 @@
#include <linux/kernel.h>
#include <linux/notifier.h>
#include <linux/signal.h>
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
#include <linux/smp.h>
#include <linux/init.h>
#include <linux/uaccess.h>
diff --git a/arch/arm64/kernel/fpsimd.c b/arch/arm64/kernel/fpsimd.c
index b883f1f75216..06da8ea16bbe 100644
--- a/arch/arm64/kernel/fpsimd.c
+++ b/arch/arm64/kernel/fpsimd.c
@@ -21,7 +21,7 @@
#include <linux/cpu_pm.h>
#include <linux/kernel.h>
#include <linux/init.h>
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
#include <linux/signal.h>
#include <linux/hardirq.h>
diff --git a/arch/arm64/kernel/ptrace.c b/arch/arm64/kernel/ptrace.c
index a22161ccf447..64fc32ea3422 100644
--- a/arch/arm64/kernel/ptrace.c
+++ b/arch/arm64/kernel/ptrace.c
@@ -22,7 +22,7 @@
#include <linux/audit.h>
#include <linux/compat.h>
#include <linux/kernel.h>
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
#include <linux/mm.h>
#include <linux/smp.h>
#include <linux/ptrace.h>
diff --git a/arch/arm64/kernel/traps.c b/arch/arm64/kernel/traps.c
index 659b2e6b6cf7..643adaed694c 100644
--- a/arch/arm64/kernel/traps.c
+++ b/arch/arm64/kernel/traps.c
@@ -29,7 +29,7 @@
#include <linux/kexec.h>
#include <linux/delay.h>
#include <linux/init.h>
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
#include <linux/syscalls.h>
#include <asm/atomic.h>
diff --git a/arch/arm64/mm/fault.c b/arch/arm64/mm/fault.c
index 156169c6981b..f2d54ee2fa96 100644
--- a/arch/arm64/mm/fault.c
+++ b/arch/arm64/mm/fault.c
@@ -26,7 +26,7 @@
#include <linux/kprobes.h>
#include <linux/uaccess.h>
#include <linux/page-flags.h>
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
#include <linux/highmem.h>
#include <linux/perf_event.h>
#include <linux/preempt.h>
diff --git a/arch/arm64/mm/mmap.c b/arch/arm64/mm/mmap.c
index 01c171723bb3..1e0a2650c88b 100644
--- a/arch/arm64/mm/mmap.c
+++ b/arch/arm64/mm/mmap.c
@@ -22,7 +22,7 @@
#include <linux/mman.h>
#include <linux/export.h>
#include <linux/shm.h>
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
#include <linux/io.h>
#include <linux/personality.h>
#include <linux/random.h>
diff --git a/arch/avr32/kernel/traps.c b/arch/avr32/kernel/traps.c
index eb4a3fcfbaff..50b541325025 100644
--- a/arch/avr32/kernel/traps.c
+++ b/arch/avr32/kernel/traps.c
@@ -14,7 +14,7 @@
#include <linux/extable.h>
#include <linux/module.h> /* print_modules */
#include <linux/notifier.h>
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
#include <linux/uaccess.h>
#include <asm/addrspace.h>
diff --git a/arch/blackfin/kernel/trace.c b/arch/blackfin/kernel/trace.c
index 719dd796c12c..01e546ad2f7a 100644
--- a/arch/blackfin/kernel/trace.c
+++ b/arch/blackfin/kernel/trace.c
@@ -11,7 +11,7 @@
#include <linux/thread_info.h>
#include <linux/mm.h>
#include <linux/oom.h>
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
#include <linux/uaccess.h>
#include <linux/module.h>
#include <linux/kallsyms.h>
diff --git a/arch/blackfin/kernel/traps.c b/arch/blackfin/kernel/traps.c
index 1ed85ddadc0d..32676d7721b1 100644
--- a/arch/blackfin/kernel/traps.c
+++ b/arch/blackfin/kernel/traps.c
@@ -9,6 +9,7 @@
#include <linux/bug.h>
#include <linux/uaccess.h>
#include <linux/module.h>
+#include <linux/sched/signal.h>
#include <asm/traps.h>
#include <asm/cplb.h>
#include <asm/blackfin.h>
diff --git a/arch/cris/mm/fault.c b/arch/cris/mm/fault.c
index 94183d3639ef..1fca464f1b9e 100644
--- a/arch/cris/mm/fault.c
+++ b/arch/cris/mm/fault.c
@@ -8,6 +8,7 @@
#include <linux/interrupt.h>
#include <linux/extable.h>
#include <linux/wait.h>
+#include <linux/sched/signal.h>
#include <linux/uaccess.h>
#include <arch/system.h>
diff --git a/arch/frv/kernel/traps.c b/arch/frv/kernel/traps.c
index 31221fb4348e..43c134d6081c 100644
--- a/arch/frv/kernel/traps.c
+++ b/arch/frv/kernel/traps.c
@@ -9,7 +9,7 @@
* 2 of the License, or (at your option) any later version.
*/
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
#include <linux/signal.h>
#include <linux/kernel.h>
#include <linux/mm.h>
diff --git a/arch/h8300/kernel/ptrace_s.c b/arch/h8300/kernel/ptrace_s.c
index ef5a9c13e76d..c0af930052c0 100644
--- a/arch/h8300/kernel/ptrace_s.c
+++ b/arch/h8300/kernel/ptrace_s.c
@@ -10,7 +10,7 @@
*/
#include <linux/linkage.h>
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
#include <linux/errno.h>
#include <asm/ptrace.h>
diff --git a/arch/hexagon/kernel/traps.c b/arch/hexagon/kernel/traps.c
index 110dab152f82..4496bcf605ef 100644
--- a/arch/hexagon/kernel/traps.c
+++ b/arch/hexagon/kernel/traps.c
@@ -19,7 +19,7 @@
*/
#include <linux/init.h>
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
#include <linux/module.h>
#include <linux/kallsyms.h>
#include <linux/kdebug.h>
diff --git a/arch/hexagon/mm/vm_fault.c b/arch/hexagon/mm/vm_fault.c
index de863d6d802b..6e4a4dab8b8c 100644
--- a/arch/hexagon/mm/vm_fault.c
+++ b/arch/hexagon/mm/vm_fault.c
@@ -28,6 +28,7 @@
#include <asm/traps.h>
#include <linux/uaccess.h>
#include <linux/mm.h>
+#include <linux/sched/signal.h>
#include <linux/signal.h>
#include <linux/module.h>
#include <linux/hardirq.h>
diff --git a/arch/ia64/kernel/asm-offsets.c b/arch/ia64/kernel/asm-offsets.c
index 60ef83e6db71..8786c8b4f187 100644
--- a/arch/ia64/kernel/asm-offsets.c
+++ b/arch/ia64/kernel/asm-offsets.c
@@ -6,7 +6,7 @@
#define ASM_OFFSETS_C 1
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
#include <linux/pid.h>
#include <linux/clocksource.h>
#include <linux/kbuild.h>
diff --git a/arch/ia64/kernel/brl_emu.c b/arch/ia64/kernel/brl_emu.c
index 8682df6263d6..987b11be0021 100644
--- a/arch/ia64/kernel/brl_emu.c
+++ b/arch/ia64/kernel/brl_emu.c
@@ -8,7 +8,7 @@
*/
#include <linux/kernel.h>
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
#include <linux/uaccess.h>
#include <asm/processor.h>
diff --git a/arch/ia64/kernel/mca.c b/arch/ia64/kernel/mca.c
index 9509cc73b9c6..5ac51069e453 100644
--- a/arch/ia64/kernel/mca.c
+++ b/arch/ia64/kernel/mca.c
@@ -72,7 +72,7 @@
#include <linux/jiffies.h>
#include <linux/types.h>
#include <linux/init.h>
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
#include <linux/interrupt.h>
#include <linux/irq.h>
#include <linux/bootmem.h>
diff --git a/arch/ia64/kernel/traps.c b/arch/ia64/kernel/traps.c
index 095bfaff82d0..39fad147d6fe 100644
--- a/arch/ia64/kernel/traps.c
+++ b/arch/ia64/kernel/traps.c
@@ -9,7 +9,7 @@
#include <linux/kernel.h>
#include <linux/init.h>
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
#include <linux/tty.h>
#include <linux/vt_kern.h> /* For unblank_screen() */
#include <linux/module.h> /* for EXPORT_SYMBOL */
diff --git a/arch/ia64/kernel/unaligned.c b/arch/ia64/kernel/unaligned.c
index 9cd01c2200ee..a2a72bc2ac15 100644
--- a/arch/ia64/kernel/unaligned.c
+++ b/arch/ia64/kernel/unaligned.c
@@ -15,7 +15,7 @@
*/
#include <linux/jiffies.h>
#include <linux/kernel.h>
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
#include <linux/tty.h>
#include <linux/ratelimit.h>
diff --git a/arch/ia64/mm/fault.c b/arch/ia64/mm/fault.c
index fa6ad95e992e..e9735cc3b81f 100644
--- a/arch/ia64/mm/fault.c
+++ b/arch/ia64/mm/fault.c
@@ -4,7 +4,7 @@
* Copyright (C) 1998-2002 Hewlett-Packard Co
* David Mosberger-Tang <davidm@hpl.hp.com>
*/
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
#include <linux/kernel.h>
#include <linux/mm.h>
#include <linux/interrupt.h>
diff --git a/arch/ia64/mm/init.c b/arch/ia64/mm/init.c
index bb4610faca84..cba5291ac211 100644
--- a/arch/ia64/mm/init.c
+++ b/arch/ia64/mm/init.c
@@ -12,6 +12,7 @@
#include <linux/elf.h>
#include <linux/memblock.h>
#include <linux/mm.h>
+#include <linux/sched/signal.h>
#include <linux/mmzone.h>
#include <linux/module.h>
#include <linux/personality.h>
diff --git a/arch/mips/kernel/branch.c b/arch/mips/kernel/branch.c
index ae037a304ee4..b11facd11c9d 100644
--- a/arch/mips/kernel/branch.c
+++ b/arch/mips/kernel/branch.c
@@ -7,7 +7,7 @@
* Copyright (C) 2001 MIPS Technologies, Inc.
*/
#include <linux/kernel.h>
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
#include <linux/signal.h>
#include <linux/export.h>
#include <asm/branch.h>
diff --git a/arch/mips/kernel/signal_o32.c b/arch/mips/kernel/signal_o32.c
index 5e169fc5ca5c..2b3572fb5f1b 100644
--- a/arch/mips/kernel/signal_o32.c
+++ b/arch/mips/kernel/signal_o32.c
@@ -11,6 +11,7 @@
#include <linux/compiler.h>
#include <linux/errno.h>
#include <linux/signal.h>
+#include <linux/sched/signal.h>
#include <linux/uaccess.h>
#include <asm/abi.h>
diff --git a/arch/mips/mm/mmap.c b/arch/mips/mm/mmap.c
index d08ea3ff0f53..1462b0b1807a 100644
--- a/arch/mips/mm/mmap.c
+++ b/arch/mips/mm/mmap.c
@@ -13,7 +13,7 @@
#include <linux/export.h>
#include <linux/personality.h>
#include <linux/random.h>
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
unsigned long shm_align_mask = PAGE_SIZE - 1; /* Sane caches */
EXPORT_SYMBOL(shm_align_mask);
diff --git a/arch/mips/sgi-ip22/ip22-berr.c b/arch/mips/sgi-ip22/ip22-berr.c
index 3f6ccd53c15d..ff8e1935c873 100644
--- a/arch/mips/sgi-ip22/ip22-berr.c
+++ b/arch/mips/sgi-ip22/ip22-berr.c
@@ -6,7 +6,7 @@
#include <linux/init.h>
#include <linux/kernel.h>
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
#include <asm/addrspace.h>
#include <asm/traps.h>
diff --git a/arch/mips/sgi-ip22/ip22-reset.c b/arch/mips/sgi-ip22/ip22-reset.c
index 2f45b0357021..5f6508daa176 100644
--- a/arch/mips/sgi-ip22/ip22-reset.c
+++ b/arch/mips/sgi-ip22/ip22-reset.c
@@ -11,7 +11,7 @@
#include <linux/module.h>
#include <linux/interrupt.h>
#include <linux/kernel.h>
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
#include <linux/notifier.h>
#include <linux/pm.h>
#include <linux/timer.h>
diff --git a/arch/mn10300/kernel/fpu.c b/arch/mn10300/kernel/fpu.c
index 2578b7ae7dd5..50ce7b447fed 100644
--- a/arch/mn10300/kernel/fpu.c
+++ b/arch/mn10300/kernel/fpu.c
@@ -9,6 +9,8 @@
* 2 of the Licence, or (at your option) any later version.
*/
#include <linux/uaccess.h>
+#include <linux/sched/signal.h>
+
#include <asm/fpu.h>
#include <asm/elf.h>
#include <asm/exceptions.h>
diff --git a/arch/openrisc/mm/fault.c b/arch/openrisc/mm/fault.c
index b1a7435e786a..617a52e5ceef 100644
--- a/arch/openrisc/mm/fault.c
+++ b/arch/openrisc/mm/fault.c
@@ -18,7 +18,7 @@
#include <linux/mm.h>
#include <linux/interrupt.h>
#include <linux/module.h>
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
#include <linux/uaccess.h>
#include <asm/siginfo.h>
diff --git a/arch/parisc/kernel/sys_parisc.c b/arch/parisc/kernel/sys_parisc.c
index bf3294171230..ce07cd3f2507 100644
--- a/arch/parisc/kernel/sys_parisc.c
+++ b/arch/parisc/kernel/sys_parisc.c
@@ -30,6 +30,7 @@
#include <linux/linkage.h>
#include <linux/mm.h>
#include <linux/mman.h>
+#include <linux/sched/signal.h>
#include <linux/shm.h>
#include <linux/syscalls.h>
#include <linux/utsname.h>
diff --git a/arch/parisc/kernel/unaligned.c b/arch/parisc/kernel/unaligned.c
index 0a21067ac0a3..a08ab481e556 100644
--- a/arch/parisc/kernel/unaligned.c
+++ b/arch/parisc/kernel/unaligned.c
@@ -23,7 +23,7 @@
#include <linux/jiffies.h>
#include <linux/kernel.h>
#include <linux/module.h>
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
#include <linux/signal.h>
#include <linux/ratelimit.h>
#include <linux/uaccess.h>
diff --git a/arch/parisc/math-emu/driver.c b/arch/parisc/math-emu/driver.c
index 09ef4136c693..2fb59d2e2b29 100644
--- a/arch/parisc/math-emu/driver.c
+++ b/arch/parisc/math-emu/driver.c
@@ -27,7 +27,8 @@
* Copyright (C) 2001 Hewlett-Packard <bame@debian.org>
*/
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
+
#include "float.h"
#include "math-emu.h"
diff --git a/arch/powerpc/kvm/book3s_64_vio.c b/arch/powerpc/kvm/book3s_64_vio.c
index c379ff5a4438..559aaebcf259 100644
--- a/arch/powerpc/kvm/book3s_64_vio.c
+++ b/arch/powerpc/kvm/book3s_64_vio.c
@@ -24,6 +24,7 @@
#include <linux/highmem.h>
#include <linux/gfp.h>
#include <linux/slab.h>
+#include <linux/sched/signal.h>
#include <linux/hugetlb.h>
#include <linux/list.h>
#include <linux/anon_inodes.h>
diff --git a/arch/powerpc/mm/mmap.c b/arch/powerpc/mm/mmap.c
index 2f1e44362198..8013861aeaa7 100644
--- a/arch/powerpc/mm/mmap.c
+++ b/arch/powerpc/mm/mmap.c
@@ -25,7 +25,7 @@
#include <linux/personality.h>
#include <linux/mm.h>
#include <linux/random.h>
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
#include <linux/elf-randomize.h>
#include <linux/security.h>
#include <linux/mman.h>
diff --git a/arch/powerpc/mm/mmu_context_iommu.c b/arch/powerpc/mm/mmu_context_iommu.c
index 104bad029ce9..45ca74bf9d41 100644
--- a/arch/powerpc/mm/mmu_context_iommu.c
+++ b/arch/powerpc/mm/mmu_context_iommu.c
@@ -10,7 +10,7 @@
*
*/
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
#include <linux/slab.h>
#include <linux/rculist.h>
#include <linux/vmalloc.h>
diff --git a/arch/powerpc/platforms/cell/spufs/fault.c b/arch/powerpc/platforms/cell/spufs/fault.c
index e29e4d5afa2d..870c0a82d560 100644
--- a/arch/powerpc/platforms/cell/spufs/fault.c
+++ b/arch/powerpc/platforms/cell/spufs/fault.c
@@ -19,7 +19,7 @@
* along with this program; if not, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
#include <linux/mm.h>
#include <asm/spu.h>
diff --git a/arch/powerpc/xmon/xmon.c b/arch/powerpc/xmon/xmon.c
index 3f864c36d847..7c06ec50484a 100644
--- a/arch/powerpc/xmon/xmon.c
+++ b/arch/powerpc/xmon/xmon.c
@@ -13,7 +13,7 @@
#include <linux/kernel.h>
#include <linux/errno.h>
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
#include <linux/smp.h>
#include <linux/mm.h>
#include <linux/reboot.h>
diff --git a/arch/s390/kernel/nmi.c b/arch/s390/kernel/nmi.c
index 9862196b4b89..578c4ab95aa9 100644
--- a/arch/s390/kernel/nmi.c
+++ b/arch/s390/kernel/nmi.c
@@ -14,6 +14,9 @@
#include <linux/hardirq.h>
#include <linux/time.h>
#include <linux/module.h>
+#include <linux/module.h>
+#include <linux/sched/signal.h>
+
#include <asm/lowcore.h>
#include <asm/smp.h>
#include <asm/stp.h>
diff --git a/arch/s390/mm/mmap.c b/arch/s390/mm/mmap.c
index eb9df2822da1..40c1587169ec 100644
--- a/arch/s390/mm/mmap.c
+++ b/arch/s390/mm/mmap.c
@@ -26,6 +26,7 @@
#include <linux/personality.h>
#include <linux/mm.h>
#include <linux/mman.h>
+#include <linux/sched/signal.h>
#include <linux/module.h>
#include <linux/random.h>
#include <linux/compat.h>
diff --git a/arch/score/kernel/traps.c b/arch/score/kernel/traps.c
index d948a6818961..42956543a3fc 100644
--- a/arch/score/kernel/traps.c
+++ b/arch/score/kernel/traps.c
@@ -24,7 +24,7 @@
*/
#include <linux/module.h>
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
#include <asm/cacheflush.h>
#include <asm/irq.h>
diff --git a/arch/sh/kernel/cpu/sh2a/fpu.c b/arch/sh/kernel/cpu/sh2a/fpu.c
index 98bbaa447c93..352f894bece1 100644
--- a/arch/sh/kernel/cpu/sh2a/fpu.c
+++ b/arch/sh/kernel/cpu/sh2a/fpu.c
@@ -9,7 +9,7 @@
*
* FIXME! These routines can be optimized in big endian case.
*/
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
#include <linux/signal.h>
#include <asm/processor.h>
#include <asm/io.h>
diff --git a/arch/sh/kernel/hw_breakpoint.c b/arch/sh/kernel/hw_breakpoint.c
index 2197fc584186..afe965712a69 100644
--- a/arch/sh/kernel/hw_breakpoint.c
+++ b/arch/sh/kernel/hw_breakpoint.c
@@ -11,6 +11,7 @@
*/
#include <linux/init.h>
#include <linux/perf_event.h>
+#include <linux/sched/signal.h>
#include <linux/hw_breakpoint.h>
#include <linux/percpu.h>
#include <linux/kallsyms.h>
diff --git a/arch/sh/kernel/traps.c b/arch/sh/kernel/traps.c
index dfdad72c61ca..d82845c8e18a 100644
--- a/arch/sh/kernel/traps.c
+++ b/arch/sh/kernel/traps.c
@@ -9,6 +9,8 @@
#include <linux/kernel.h>
#include <linux/kexec.h>
#include <linux/module.h>
+#include <linux/sched/signal.h>
+
#include <asm/unwinder.h>
#include <asm/traps.h>
diff --git a/arch/sh/math-emu/math.c b/arch/sh/math-emu/math.c
index 5078cb809750..c86f4360c6ce 100644
--- a/arch/sh/math-emu/math.c
+++ b/arch/sh/math-emu/math.c
@@ -10,7 +10,7 @@
#include <linux/kernel.h>
#include <linux/errno.h>
#include <linux/types.h>
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
#include <linux/signal.h>
#include <linux/perf_event.h>
diff --git a/arch/sh/mm/asids-debugfs.c b/arch/sh/mm/asids-debugfs.c
index bf95fdaedd0c..110bd35165bf 100644
--- a/arch/sh/mm/asids-debugfs.c
+++ b/arch/sh/mm/asids-debugfs.c
@@ -20,6 +20,8 @@
#include <linux/debugfs.h>
#include <linux/seq_file.h>
#include <linux/spinlock.h>
+#include <linux/sched/signal.h>
+
#include <asm/processor.h>
#include <asm/mmu_context.h>
diff --git a/arch/sh/mm/fault.c b/arch/sh/mm/fault.c
index 9bf876780cef..6fd1bf7481c7 100644
--- a/arch/sh/mm/fault.c
+++ b/arch/sh/mm/fault.c
@@ -13,6 +13,7 @@
*/
#include <linux/kernel.h>
#include <linux/mm.h>
+#include <linux/sched/signal.h>
#include <linux/hardirq.h>
#include <linux/kprobes.h>
#include <linux/perf_event.h>
diff --git a/arch/sparc/kernel/sys_sparc_32.c b/arch/sparc/kernel/sys_sparc_32.c
index fb7b185ee941..ae49639a484e 100644
--- a/arch/sparc/kernel/sys_sparc_32.c
+++ b/arch/sparc/kernel/sys_sparc_32.c
@@ -7,7 +7,7 @@
#include <linux/errno.h>
#include <linux/types.h>
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
#include <linux/mm.h>
#include <linux/fs.h>
#include <linux/file.h>
diff --git a/arch/sparc/kernel/sys_sparc_64.c b/arch/sparc/kernel/sys_sparc_64.c
index 884c70331345..54d3999d8119 100644
--- a/arch/sparc/kernel/sys_sparc_64.c
+++ b/arch/sparc/kernel/sys_sparc_64.c
@@ -7,7 +7,7 @@
#include <linux/errno.h>
#include <linux/types.h>
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
#include <linux/fs.h>
#include <linux/file.h>
#include <linux/mm.h>
diff --git a/arch/sparc/kernel/unaligned_32.c b/arch/sparc/kernel/unaligned_32.c
index d20d4e3fd129..8367dce5f41b 100644
--- a/arch/sparc/kernel/unaligned_32.c
+++ b/arch/sparc/kernel/unaligned_32.c
@@ -8,7 +8,7 @@
#include <linux/kernel.h>
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
#include <linux/mm.h>
#include <asm/ptrace.h>
#include <asm/processor.h>
diff --git a/arch/tile/mm/mmap.c b/arch/tile/mm/mmap.c
index ef61c597898b..377e312dc27e 100644
--- a/arch/tile/mm/mmap.c
+++ b/arch/tile/mm/mmap.c
@@ -17,7 +17,7 @@
#include <linux/mm.h>
#include <linux/random.h>
#include <linux/limits.h>
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
#include <linux/mman.h>
#include <linux/compat.h>
diff --git a/arch/um/drivers/line.c b/arch/um/drivers/line.c
index 62087028a9ce..366e57f5e8d6 100644
--- a/arch/um/drivers/line.c
+++ b/arch/um/drivers/line.c
@@ -5,8 +5,9 @@
#include <linux/irqreturn.h>
#include <linux/kd.h>
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
#include <linux/slab.h>
+
#include "chan.h"
#include <irq_kern.h>
#include <irq_user.h>
diff --git a/arch/um/kernel/reboot.c b/arch/um/kernel/reboot.c
index b60a9f8cda75..79218106a033 100644
--- a/arch/um/kernel/reboot.c
+++ b/arch/um/kernel/reboot.c
@@ -3,7 +3,7 @@
* Licensed under the GPL
*/
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
#include <linux/spinlock.h>
#include <linux/slab.h>
#include <linux/oom.h>
diff --git a/arch/um/kernel/skas/mmu.c b/arch/um/kernel/skas/mmu.c
index 3943e9d7d13d..7a1f2a936fd1 100644
--- a/arch/um/kernel/skas/mmu.c
+++ b/arch/um/kernel/skas/mmu.c
@@ -5,8 +5,9 @@
*/
#include <linux/mm.h>
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
#include <linux/slab.h>
+
#include <asm/pgalloc.h>
#include <asm/pgtable.h>
#include <asm/sections.h>
diff --git a/arch/um/kernel/tlb.c b/arch/um/kernel/tlb.c
index 3777b82759bd..37508b190106 100644
--- a/arch/um/kernel/tlb.c
+++ b/arch/um/kernel/tlb.c
@@ -5,7 +5,8 @@
#include <linux/mm.h>
#include <linux/module.h>
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
+
#include <asm/pgtable.h>
#include <asm/tlbflush.h>
#include <as-layout.h>
diff --git a/arch/um/kernel/trap.c b/arch/um/kernel/trap.c
index ad8f206ab5e8..9711ae4aaa6a 100644
--- a/arch/um/kernel/trap.c
+++ b/arch/um/kernel/trap.c
@@ -4,7 +4,7 @@
*/
#include <linux/mm.h>
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
#include <linux/hardirq.h>
#include <linux/module.h>
#include <linux/uaccess.h>
diff --git a/arch/unicore32/kernel/fpu-ucf64.c b/arch/unicore32/kernel/fpu-ucf64.c
index a53343a90ca2..12c8c9527b8e 100644
--- a/arch/unicore32/kernel/fpu-ucf64.c
+++ b/arch/unicore32/kernel/fpu-ucf64.c
@@ -13,7 +13,7 @@
#include <linux/types.h>
#include <linux/kernel.h>
#include <linux/signal.h>
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
#include <linux/init.h>
#include <asm/fpu-ucf64.h>
diff --git a/arch/unicore32/kernel/traps.c b/arch/unicore32/kernel/traps.c
index c54e32410ead..7f5e06f9a202 100644
--- a/arch/unicore32/kernel/traps.c
+++ b/arch/unicore32/kernel/traps.c
@@ -14,6 +14,7 @@
*/
#include <linux/module.h>
#include <linux/signal.h>
+#include <linux/sched/signal.h>
#include <linux/spinlock.h>
#include <linux/personality.h>
#include <linux/kallsyms.h>
diff --git a/arch/unicore32/mm/fault.c b/arch/unicore32/mm/fault.c
index 6c7f70bcaae3..092d6c55949f 100644
--- a/arch/unicore32/mm/fault.c
+++ b/arch/unicore32/mm/fault.c
@@ -17,7 +17,7 @@
#include <linux/kprobes.h>
#include <linux/uaccess.h>
#include <linux/page-flags.h>
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
#include <linux/io.h>
#include <asm/pgtable.h>
diff --git a/arch/x86/entry/vsyscall/vsyscall_64.c b/arch/x86/entry/vsyscall/vsyscall_64.c
index 636c4b341f36..df91fb393a01 100644
--- a/arch/x86/entry/vsyscall/vsyscall_64.c
+++ b/arch/x86/entry/vsyscall/vsyscall_64.c
@@ -27,6 +27,7 @@
#include <linux/kernel.h>
#include <linux/timer.h>
+#include <linux/sched/signal.h>
#include <linux/syscalls.h>
#include <linux/ratelimit.h>
diff --git a/arch/x86/kernel/cpu/intel_rdt_rdtgroup.c b/arch/x86/kernel/cpu/intel_rdt_rdtgroup.c
index 8af04afdfcb9..d48af18e7baf 100644
--- a/arch/x86/kernel/cpu/intel_rdt_rdtgroup.c
+++ b/arch/x86/kernel/cpu/intel_rdt_rdtgroup.c
@@ -25,7 +25,7 @@
#include <linux/sysfs.h>
#include <linux/kernfs.h>
#include <linux/seq_file.h>
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
#include <linux/slab.h>
#include <linux/cpu.h>
#include <linux/task_work.h>
diff --git a/arch/x86/kvm/mmu.c b/arch/x86/kvm/mmu.c
index 7012de4a1fed..d8d235be5d5f 100644
--- a/arch/x86/kvm/mmu.c
+++ b/arch/x86/kvm/mmu.c
@@ -36,6 +36,7 @@
#include <linux/compiler.h>
#include <linux/srcu.h>
#include <linux/slab.h>
+#include <linux/sched/signal.h>
#include <linux/uaccess.h>
#include <asm/page.h>
diff --git a/arch/x86/mm/mmap.c b/arch/x86/mm/mmap.c
index d2dc0438d654..5eabf34008f1 100644
--- a/arch/x86/mm/mmap.c
+++ b/arch/x86/mm/mmap.c
@@ -28,7 +28,7 @@
#include <linux/mm.h>
#include <linux/random.h>
#include <linux/limits.h>
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
#include <asm/elf.h>
struct va_alignment __read_mostly va_align = {
diff --git a/arch/xtensa/kernel/traps.c b/arch/xtensa/kernel/traps.c
index 282bf721a4d6..84abd66e680d 100644
--- a/arch/xtensa/kernel/traps.c
+++ b/arch/xtensa/kernel/traps.c
@@ -24,7 +24,7 @@
*/
#include <linux/kernel.h>
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
#include <linux/init.h>
#include <linux/module.h>
#include <linux/stringify.h>
diff --git a/drivers/android/binder.c b/drivers/android/binder.c
index 6e259ad9131f..7e4e715e1f1a 100644
--- a/drivers/android/binder.c
+++ b/drivers/android/binder.c
@@ -31,7 +31,7 @@
#include <linux/poll.h>
#include <linux/debugfs.h>
#include <linux/rbtree.h>
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
#include <linux/sched/mm.h>
#include <linux/seq_file.h>
#include <linux/uaccess.h>
diff --git a/drivers/block/drbd/drbd_int.h b/drivers/block/drbd/drbd_int.h
index 4cb8f21ff4ef..724d1c50fc52 100644
--- a/drivers/block/drbd/drbd_int.h
+++ b/drivers/block/drbd/drbd_int.h
@@ -30,7 +30,7 @@
#include <linux/compiler.h>
#include <linux/types.h>
#include <linux/list.h>
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
#include <linux/bitops.h>
#include <linux/slab.h>
#include <linux/ratelimit.h>
diff --git a/drivers/char/snsc_event.c b/drivers/char/snsc_event.c
index 59bcefd6ec7c..e452673dff66 100644
--- a/drivers/char/snsc_event.c
+++ b/drivers/char/snsc_event.c
@@ -16,7 +16,7 @@
*/
#include <linux/interrupt.h>
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
#include <linux/slab.h>
#include <asm/byteorder.h>
#include <asm/sn/sn_sal.h>
diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_events.c b/drivers/gpu/drm/amd/amdkfd/kfd_events.c
index a6a4b2b1c0d9..ea7409e686da 100644
--- a/drivers/gpu/drm/amd/amdkfd/kfd_events.c
+++ b/drivers/gpu/drm/amd/amdkfd/kfd_events.c
@@ -23,7 +23,7 @@
#include <linux/mm_types.h>
#include <linux/slab.h>
#include <linux/types.h>
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
#include <linux/uaccess.h>
#include <linux/mm.h>
#include <linux/mman.h>
diff --git a/drivers/gpu/drm/drm_lock.c b/drivers/gpu/drm/drm_lock.c
index 32d43f86a8f2..96bb6badb818 100644
--- a/drivers/gpu/drm/drm_lock.c
+++ b/drivers/gpu/drm/drm_lock.c
@@ -34,6 +34,8 @@
*/
#include <linux/export.h>
+#include <linux/sched/signal.h>
+
#include <drm/drmP.h>
#include "drm_legacy.h"
#include "drm_internal.h"
diff --git a/drivers/gpu/drm/ttm/ttm_lock.c b/drivers/gpu/drm/ttm/ttm_lock.c
index f154fb1929bd..913f4318cdc0 100644
--- a/drivers/gpu/drm/ttm/ttm_lock.c
+++ b/drivers/gpu/drm/ttm/ttm_lock.c
@@ -33,7 +33,7 @@
#include <linux/atomic.h>
#include <linux/errno.h>
#include <linux/wait.h>
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
#include <linux/module.h>
#define TTM_WRITE_LOCK_PENDING (1 << 0)
diff --git a/drivers/infiniband/core/umem.c b/drivers/infiniband/core/umem.c
index e30a27b16dc4..d419d25a1b63 100644
--- a/drivers/infiniband/core/umem.c
+++ b/drivers/infiniband/core/umem.c
@@ -34,7 +34,7 @@
#include <linux/mm.h>
#include <linux/dma-mapping.h>
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
#include <linux/sched/mm.h>
#include <linux/export.h>
#include <linux/hugetlb.h>
diff --git a/drivers/infiniband/hw/hfi1/user_pages.c b/drivers/infiniband/hw/hfi1/user_pages.c
index 20f4ddcac3b0..68295a12b771 100644
--- a/drivers/infiniband/hw/hfi1/user_pages.c
+++ b/drivers/infiniband/hw/hfi1/user_pages.c
@@ -46,7 +46,7 @@
*/
#include <linux/mm.h>
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
#include <linux/device.h>
#include <linux/module.h>
diff --git a/drivers/infiniband/hw/qib/qib_user_pages.c b/drivers/infiniband/hw/qib/qib_user_pages.c
index 75f08624ac05..ce83ba9a12ef 100644
--- a/drivers/infiniband/hw/qib/qib_user_pages.c
+++ b/drivers/infiniband/hw/qib/qib_user_pages.c
@@ -32,6 +32,7 @@
*/
#include <linux/mm.h>
+#include <linux/sched/signal.h>
#include <linux/device.h>
#include "qib.h"
diff --git a/drivers/infiniband/hw/usnic/usnic_uiom.c b/drivers/infiniband/hw/usnic/usnic_uiom.c
index ba868be5af2e..c49db7c33979 100644
--- a/drivers/infiniband/hw/usnic/usnic_uiom.c
+++ b/drivers/infiniband/hw/usnic/usnic_uiom.c
@@ -34,7 +34,7 @@
#include <linux/mm.h>
#include <linux/dma-mapping.h>
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
#include <linux/sched/mm.h>
#include <linux/hugetlb.h>
#include <linux/iommu.h>
diff --git a/drivers/isdn/i4l/isdn_tty.c b/drivers/isdn/i4l/isdn_tty.c
index 63eaa0a9f8a1..1b169559a240 100644
--- a/drivers/isdn/i4l/isdn_tty.c
+++ b/drivers/isdn/i4l/isdn_tty.c
@@ -15,6 +15,7 @@
#include <linux/slab.h>
#include <linux/delay.h>
#include <linux/mutex.h>
+#include <linux/sched/signal.h>
#include "isdn_common.h"
#include "isdn_tty.h"
#ifdef CONFIG_ISDN_AUDIO
diff --git a/drivers/isdn/mISDN/l1oip_core.c b/drivers/isdn/mISDN/l1oip_core.c
index 67c21876c35f..6ceca7db62ad 100644
--- a/drivers/isdn/mISDN/l1oip_core.c
+++ b/drivers/isdn/mISDN/l1oip_core.c
@@ -234,6 +234,8 @@
#include <linux/workqueue.h>
#include <linux/kthread.h>
#include <linux/slab.h>
+#include <linux/sched/signal.h>
+
#include <net/sock.h>
#include "core.h"
#include "l1oip.h"
diff --git a/drivers/md/md.c b/drivers/md/md.c
index 01175dac0db6..a966fd0b9937 100644
--- a/drivers/md/md.c
+++ b/drivers/md/md.c
@@ -44,6 +44,7 @@
*/
+#include <linux/sched/signal.h>
#include <linux/kthread.h>
#include <linux/blkdev.h>
#include <linux/badblocks.h>
diff --git a/drivers/md/raid1.c b/drivers/md/raid1.c
index 7b0f647bcccb..48eecc4b3f93 100644
--- a/drivers/md/raid1.c
+++ b/drivers/md/raid1.c
@@ -37,7 +37,10 @@
#include <linux/module.h>
#include <linux/seq_file.h>
#include <linux/ratelimit.h>
+#include <linux/sched/signal.h>
+
#include <trace/events/block.h>
+
#include "md.h"
#include "raid1.h"
#include "bitmap.h"
diff --git a/drivers/md/raid5.c b/drivers/md/raid5.c
index 3c7e106c12a2..7cd959565c0b 100644
--- a/drivers/md/raid5.c
+++ b/drivers/md/raid5.c
@@ -55,6 +55,8 @@
#include <linux/ratelimit.h>
#include <linux/nodemask.h>
#include <linux/flex_array.h>
+#include <linux/sched/signal.h>
+
#include <trace/events/block.h>
#include "md.h"
diff --git a/drivers/misc/genwqe/card_dev.c b/drivers/misc/genwqe/card_dev.c
index cb290b8ca0c8..dd4617764f14 100644
--- a/drivers/misc/genwqe/card_dev.c
+++ b/drivers/misc/genwqe/card_dev.c
@@ -29,7 +29,7 @@
#include <linux/pci.h>
#include <linux/string.h>
#include <linux/fs.h>
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
#include <linux/wait.h>
#include <linux/delay.h>
#include <linux/atomic.h>
diff --git a/drivers/misc/mic/cosm/cosm_scif_server.c b/drivers/misc/mic/cosm/cosm_scif_server.c
index 5696df4326b5..85f7d09cc65f 100644
--- a/drivers/misc/mic/cosm/cosm_scif_server.c
+++ b/drivers/misc/mic/cosm/cosm_scif_server.c
@@ -19,6 +19,8 @@
*
*/
#include <linux/kthread.h>
+#include <linux/sched/signal.h>
+
#include "cosm_main.h"
/*
diff --git a/drivers/misc/mic/cosm_client/cosm_scif_client.c b/drivers/misc/mic/cosm_client/cosm_scif_client.c
index 03e98bf1ac15..aa530fcceaa9 100644
--- a/drivers/misc/mic/cosm_client/cosm_scif_client.c
+++ b/drivers/misc/mic/cosm_client/cosm_scif_client.c
@@ -22,6 +22,8 @@
#include <linux/delay.h>
#include <linux/reboot.h>
#include <linux/kthread.h>
+#include <linux/sched/signal.h>
+
#include "../cosm/cosm_main.h"
#define COSM_SCIF_MAX_RETRIES 10
diff --git a/drivers/misc/mic/scif/scif_rma.c b/drivers/misc/mic/scif/scif_rma.c
index d0e9c60f944e..329727e00e97 100644
--- a/drivers/misc/mic/scif/scif_rma.c
+++ b/drivers/misc/mic/scif/scif_rma.c
@@ -18,6 +18,7 @@
#include <linux/dma_remapping.h>
#include <linux/pagemap.h>
#include <linux/sched/mm.h>
+#include <linux/sched/signal.h>
#include "scif_main.h"
#include "scif_map.h"
diff --git a/drivers/net/slip/slip.c b/drivers/net/slip/slip.c
index 9841f3dc0682..0bbb74e7a916 100644
--- a/drivers/net/slip/slip.c
+++ b/drivers/net/slip/slip.c
@@ -66,7 +66,7 @@
#include <linux/uaccess.h>
#include <linux/bitops.h>
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
#include <linux/string.h>
#include <linux/mm.h>
#include <linux/interrupt.h>
diff --git a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/sdio.c b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/sdio.c
index dfb0658713d9..85e0cf45d7fb 100644
--- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/sdio.c
+++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/sdio.c
@@ -22,7 +22,7 @@
#include <linux/pci_ids.h>
#include <linux/netdevice.h>
#include <linux/interrupt.h>
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
#include <linux/mmc/sdio.h>
#include <linux/mmc/sdio_ids.h>
#include <linux/mmc/sdio_func.h>
diff --git a/drivers/parisc/power.c b/drivers/parisc/power.c
index ef31b77404ef..e2a3112f1c98 100644
--- a/drivers/parisc/power.c
+++ b/drivers/parisc/power.c
@@ -39,7 +39,7 @@
#include <linux/kernel.h>
#include <linux/notifier.h>
#include <linux/reboot.h>
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
#include <linux/kthread.h>
#include <linux/pm.h>
diff --git a/drivers/ps3/ps3-sys-manager.c b/drivers/ps3/ps3-sys-manager.c
index f2ab435954f6..73e496a72113 100644
--- a/drivers/ps3/ps3-sys-manager.c
+++ b/drivers/ps3/ps3-sys-manager.c
@@ -22,6 +22,7 @@
#include <linux/module.h>
#include <linux/workqueue.h>
#include <linux/reboot.h>
+#include <linux/sched/signal.h>
#include <asm/firmware.h>
#include <asm/lv1call.h>
diff --git a/drivers/s390/char/fs3270.c b/drivers/s390/char/fs3270.c
index 85eca1cef063..c4518168fd02 100644
--- a/drivers/s390/char/fs3270.c
+++ b/drivers/s390/char/fs3270.c
@@ -12,6 +12,7 @@
#include <linux/init.h>
#include <linux/interrupt.h>
#include <linux/compat.h>
+#include <linux/sched/signal.h>
#include <linux/module.h>
#include <linux/list.h>
#include <linux/slab.h>
diff --git a/drivers/s390/char/keyboard.c b/drivers/s390/char/keyboard.c
index 82c913318b73..ba0e4f93503d 100644
--- a/drivers/s390/char/keyboard.c
+++ b/drivers/s390/char/keyboard.c
@@ -7,7 +7,7 @@
*/
#include <linux/module.h>
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
#include <linux/slab.h>
#include <linux/sysrq.h>
diff --git a/drivers/scsi/bnx2fc/bnx2fc.h b/drivers/scsi/bnx2fc/bnx2fc.h
index fdd4eb4e41b2..4fc8ed5fe067 100644
--- a/drivers/scsi/bnx2fc/bnx2fc.h
+++ b/drivers/scsi/bnx2fc/bnx2fc.h
@@ -39,7 +39,7 @@
#include <linux/bitops.h>
#include <linux/log2.h>
#include <linux/interrupt.h>
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
#include <linux/io.h>
#include <scsi/scsi.h>
diff --git a/drivers/scsi/bnx2i/bnx2i.h b/drivers/scsi/bnx2i/bnx2i.h
index ed7f3228e234..89ef1a1678d1 100644
--- a/drivers/scsi/bnx2i/bnx2i.h
+++ b/drivers/scsi/bnx2i/bnx2i.h
@@ -25,7 +25,7 @@
#include <linux/spinlock.h>
#include <linux/interrupt.h>
#include <linux/delay.h>
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
#include <linux/in.h>
#include <linux/kfifo.h>
#include <linux/netdevice.h>
diff --git a/drivers/scsi/libiscsi.c b/drivers/scsi/libiscsi.c
index f9b6fba689ff..73ba3649d8a0 100644
--- a/drivers/scsi/libiscsi.c
+++ b/drivers/scsi/libiscsi.c
@@ -26,6 +26,7 @@
#include <linux/delay.h>
#include <linux/log2.h>
#include <linux/slab.h>
+#include <linux/sched/signal.h>
#include <linux/module.h>
#include <asm/unaligned.h>
#include <net/tcp.h>
diff --git a/drivers/staging/android/lowmemorykiller.c b/drivers/staging/android/lowmemorykiller.c
index ec3b66561412..054660049395 100644
--- a/drivers/staging/android/lowmemorykiller.c
+++ b/drivers/staging/android/lowmemorykiller.c
@@ -37,7 +37,7 @@
#include <linux/kernel.h>
#include <linux/mm.h>
#include <linux/oom.h>
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
#include <linux/swap.h>
#include <linux/rcupdate.h>
#include <linux/profile.h>
diff --git a/drivers/staging/lustre/lnet/libcfs/linux/linux-prim.c b/drivers/staging/lustre/lnet/libcfs/linux/linux-prim.c
index cf902154f0aa..bcf9f3dd0310 100644
--- a/drivers/staging/lustre/lnet/libcfs/linux/linux-prim.c
+++ b/drivers/staging/lustre/lnet/libcfs/linux/linux-prim.c
@@ -34,7 +34,7 @@
#include <linux/module.h>
#include <linux/kernel.h>
#include <linux/fs_struct.h>
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
#include "../../../include/linux/libcfs/libcfs.h"
diff --git a/drivers/staging/rtl8188eu/include/osdep_service.h b/drivers/staging/rtl8188eu/include/osdep_service.h
index 9047b6dec9ed..3055dcf0f039 100644
--- a/drivers/staging/rtl8188eu/include/osdep_service.h
+++ b/drivers/staging/rtl8188eu/include/osdep_service.h
@@ -37,7 +37,7 @@
#include <linux/io.h>
#include <linux/mutex.h>
#include <linux/sem.h>
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
#include <linux/etherdevice.h>
#include <linux/wireless.h>
#include <net/iw_handler.h>
diff --git a/drivers/staging/rtl8712/osdep_service.h b/drivers/staging/rtl8712/osdep_service.h
index b8a170978434..5d33020554cd 100644
--- a/drivers/staging/rtl8712/osdep_service.h
+++ b/drivers/staging/rtl8712/osdep_service.h
@@ -33,7 +33,7 @@
#include <linux/interrupt.h>
#include <linux/semaphore.h>
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
#include <linux/sem.h>
#include <linux/netdevice.h>
#include <linux/etherdevice.h>
diff --git a/drivers/staging/rtl8712/rtl8712_cmd.c b/drivers/staging/rtl8712/rtl8712_cmd.c
index 9f61583af150..0781002ffbb8 100644
--- a/drivers/staging/rtl8712/rtl8712_cmd.c
+++ b/drivers/staging/rtl8712/rtl8712_cmd.c
@@ -32,6 +32,7 @@
#include <linux/kernel.h>
#include <linux/errno.h>
#include <linux/slab.h>
+#include <linux/sched/signal.h>
#include <linux/module.h>
#include <linux/kref.h>
#include <linux/netdevice.h>
diff --git a/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_arm.c b/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_arm.c
index 0d987898b4f8..a89600b2a4ab 100644
--- a/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_arm.c
+++ b/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_arm.c
@@ -34,6 +34,7 @@
#include <linux/kernel.h>
#include <linux/module.h>
+#include <linux/sched/signal.h>
#include <linux/types.h>
#include <linux/errno.h>
#include <linux/cdev.h>
diff --git a/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_util.h b/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_util.h
index 4055d4bf9f74..e63964f5a18a 100644
--- a/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_util.h
+++ b/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_util.h
@@ -47,7 +47,7 @@
#include <linux/types.h>
#include <linux/interrupt.h>
#include <linux/random.h>
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
#include <linux/ctype.h>
#include <linux/uaccess.h>
#include <linux/time.h> /* for time_t */
diff --git a/drivers/target/iscsi/iscsi_target.c b/drivers/target/iscsi/iscsi_target.c
index da2c73a255de..fa1d578d56bd 100644
--- a/drivers/target/iscsi/iscsi_target.c
+++ b/drivers/target/iscsi/iscsi_target.c
@@ -24,6 +24,7 @@
#include <linux/vmalloc.h>
#include <linux/idr.h>
#include <linux/delay.h>
+#include <linux/sched/signal.h>
#include <asm/unaligned.h>
#include <net/ipv6.h>
#include <scsi/scsi_proto.h>
diff --git a/drivers/target/iscsi/iscsi_target_erl0.c b/drivers/target/iscsi/iscsi_target_erl0.c
index b54e72c7ab0f..a4d5e6749932 100644
--- a/drivers/target/iscsi/iscsi_target_erl0.c
+++ b/drivers/target/iscsi/iscsi_target_erl0.c
@@ -17,6 +17,8 @@
* GNU General Public License for more details.
******************************************************************************/
+#include <linux/sched/signal.h>
+
#include <scsi/iscsi_proto.h>
#include <target/target_core_base.h>
#include <target/target_core_fabric.h>
diff --git a/drivers/target/iscsi/iscsi_target_login.c b/drivers/target/iscsi/iscsi_target_login.c
index 450f51deb2a2..f2ca739d4dcb 100644
--- a/drivers/target/iscsi/iscsi_target_login.c
+++ b/drivers/target/iscsi/iscsi_target_login.c
@@ -19,6 +19,7 @@
#include <crypto/hash.h>
#include <linux/string.h>
#include <linux/kthread.h>
+#include <linux/sched/signal.h>
#include <linux/idr.h>
#include <linux/tcp.h> /* TCP_NODELAY */
#include <net/ipv6.h> /* ipv6_addr_v4mapped() */
diff --git a/drivers/target/iscsi/iscsi_target_nego.c b/drivers/target/iscsi/iscsi_target_nego.c
index 46388c9e08da..29eb09e0cd15 100644
--- a/drivers/target/iscsi/iscsi_target_nego.c
+++ b/drivers/target/iscsi/iscsi_target_nego.c
@@ -19,6 +19,7 @@
#include <linux/ctype.h>
#include <linux/kthread.h>
#include <linux/slab.h>
+#include <linux/sched/signal.h>
#include <net/sock.h>
#include <scsi/iscsi_proto.h>
#include <target/target_core_base.h>
diff --git a/drivers/tty/pty.c b/drivers/tty/pty.c
index a23fa5ed1d67..66b59a15780d 100644
--- a/drivers/tty/pty.c
+++ b/drivers/tty/pty.c
@@ -12,7 +12,7 @@
#include <linux/tty.h>
#include <linux/tty_flip.h>
#include <linux/fcntl.h>
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
#include <linux/string.h>
#include <linux/major.h>
#include <linux/mm.h>
diff --git a/drivers/tty/sysrq.c b/drivers/tty/sysrq.c
index 701c085bb19b..41368ffab6ae 100644
--- a/drivers/tty/sysrq.c
+++ b/drivers/tty/sysrq.c
@@ -14,7 +14,7 @@
#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
#include <linux/sched/rt.h>
#include <linux/interrupt.h>
#include <linux/mm.h>
diff --git a/drivers/tty/tty_io.c b/drivers/tty/tty_io.c
index 734a635e7363..05c97f8ff2ed 100644
--- a/drivers/tty/tty_io.c
+++ b/drivers/tty/tty_io.c
@@ -69,7 +69,7 @@
#include <linux/errno.h>
#include <linux/signal.h>
#include <linux/fcntl.h>
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
#include <linux/interrupt.h>
#include <linux/tty.h>
#include <linux/tty_driver.h>
diff --git a/drivers/tty/vt/keyboard.c b/drivers/tty/vt/keyboard.c
index 3dd6a491cdba..71391e672588 100644
--- a/drivers/tty/vt/keyboard.c
+++ b/drivers/tty/vt/keyboard.c
@@ -26,7 +26,7 @@
#include <linux/consolemap.h>
#include <linux/module.h>
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
#include <linux/tty.h>
#include <linux/tty_flip.h>
#include <linux/mm.h>
diff --git a/drivers/tty/vt/vt.c b/drivers/tty/vt/vt.c
index 4c10a9df3b91..98c09b3c5e29 100644
--- a/drivers/tty/vt/vt.c
+++ b/drivers/tty/vt/vt.c
@@ -72,7 +72,7 @@
#include <linux/module.h>
#include <linux/types.h>
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
#include <linux/tty.h>
#include <linux/tty_flip.h>
#include <linux/kernel.h>
diff --git a/drivers/tty/vt/vt_ioctl.c b/drivers/tty/vt/vt_ioctl.c
index a56edf2d58eb..0cbfe1ff6f6c 100644
--- a/drivers/tty/vt/vt_ioctl.c
+++ b/drivers/tty/vt/vt_ioctl.c
@@ -10,7 +10,7 @@
#include <linux/types.h>
#include <linux/errno.h>
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
#include <linux/tty.h>
#include <linux/timer.h>
#include <linux/kernel.h>
diff --git a/drivers/usb/atm/usbatm.c b/drivers/usb/atm/usbatm.c
index 5a59da0dc98a..3e80aa3b917a 100644
--- a/drivers/usb/atm/usbatm.c
+++ b/drivers/usb/atm/usbatm.c
@@ -74,7 +74,7 @@
#include <linux/moduleparam.h>
#include <linux/netdevice.h>
#include <linux/proc_fs.h>
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
#include <linux/signal.h>
#include <linux/slab.h>
#include <linux/stat.h>
diff --git a/drivers/usb/core/devio.c b/drivers/usb/core/devio.c
index 4016dae7433b..6c4f74aef090 100644
--- a/drivers/usb/core/devio.c
+++ b/drivers/usb/core/devio.c
@@ -36,6 +36,7 @@
#include <linux/fs.h>
#include <linux/mm.h>
+#include <linux/sched/signal.h>
#include <linux/slab.h>
#include <linux/signal.h>
#include <linux/poll.h>
diff --git a/drivers/usb/gadget/function/f_mass_storage.c b/drivers/usb/gadget/function/f_mass_storage.c
index 8f3659b65f53..4c8aacc232c0 100644
--- a/drivers/usb/gadget/function/f_mass_storage.c
+++ b/drivers/usb/gadget/function/f_mass_storage.c
@@ -207,6 +207,7 @@
#include <linux/fs.h>
#include <linux/kref.h>
#include <linux/kthread.h>
+#include <linux/sched/signal.h>
#include <linux/limits.h>
#include <linux/rwsem.h>
#include <linux/slab.h>
diff --git a/drivers/vfio/vfio_iommu_spapr_tce.c b/drivers/vfio/vfio_iommu_spapr_tce.c
index 65f025d79ee3..456a435aa8f7 100644
--- a/drivers/vfio/vfio_iommu_spapr_tce.c
+++ b/drivers/vfio/vfio_iommu_spapr_tce.c
@@ -21,6 +21,7 @@
#include <linux/vfio.h>
#include <linux/vmalloc.h>
#include <linux/sched/mm.h>
+#include <linux/sched/signal.h>
#include <asm/iommu.h>
#include <asm/tce.h>
diff --git a/drivers/vfio/vfio_iommu_type1.c b/drivers/vfio/vfio_iommu_type1.c
index 70ea7e3c40e5..2357aacba944 100644
--- a/drivers/vfio/vfio_iommu_type1.c
+++ b/drivers/vfio/vfio_iommu_type1.c
@@ -31,7 +31,7 @@
#include <linux/module.h>
#include <linux/mm.h>
#include <linux/rbtree.h>
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
#include <linux/sched/mm.h>
#include <linux/slab.h>
#include <linux/uaccess.h>
diff --git a/drivers/w1/w1_family.c b/drivers/w1/w1_family.c
index 1dc3051f7d76..892e60e8cf44 100644
--- a/drivers/w1/w1_family.c
+++ b/drivers/w1/w1_family.c
@@ -21,7 +21,7 @@
#include <linux/spinlock.h>
#include <linux/list.h>
-#include <linux/sched.h> /* schedule_timeout() */
+#include <linux/sched/signal.h>
#include <linux/delay.h>
#include <linux/export.h>
diff --git a/drivers/w1/w1_int.c b/drivers/w1/w1_int.c
index 20f766afa4c7..a23a41eb8683 100644
--- a/drivers/w1/w1_int.c
+++ b/drivers/w1/w1_int.c
@@ -24,6 +24,7 @@
#include <linux/delay.h>
#include <linux/kthread.h>
#include <linux/slab.h>
+#include <linux/sched/signal.h>
#include <linux/export.h>
#include <linux/moduleparam.h>
diff --git a/fs/attr.c b/fs/attr.c
index c902b3d53508..135304146120 100644
--- a/fs/attr.c
+++ b/fs/attr.c
@@ -9,6 +9,7 @@
#include <linux/time.h>
#include <linux/mm.h>
#include <linux/string.h>
+#include <linux/sched/signal.h>
#include <linux/capability.h>
#include <linux/fsnotify.h>
#include <linux/fcntl.h>
diff --git a/fs/autofs4/waitq.c b/fs/autofs4/waitq.c
index 1278335ce366..65febf055759 100644
--- a/fs/autofs4/waitq.c
+++ b/fs/autofs4/waitq.c
@@ -10,6 +10,7 @@
#include <linux/slab.h>
#include <linux/time.h>
#include <linux/signal.h>
+#include <linux/sched/signal.h>
#include <linux/file.h>
#include "autofs_i.h"
diff --git a/fs/cifs/connect.c b/fs/cifs/connect.c
index 35ae49ed1f76..19eb2dac2efe 100644
--- a/fs/cifs/connect.c
+++ b/fs/cifs/connect.c
@@ -21,6 +21,7 @@
#include <linux/fs.h>
#include <linux/net.h>
#include <linux/string.h>
+#include <linux/sched/signal.h>
#include <linux/list.h>
#include <linux/wait.h>
#include <linux/slab.h>
diff --git a/fs/coda/upcall.c b/fs/coda/upcall.c
index f6c6c8adbc01..e82357c89979 100644
--- a/fs/coda/upcall.c
+++ b/fs/coda/upcall.c
@@ -15,7 +15,7 @@
*/
#include <linux/signal.h>
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
#include <linux/types.h>
#include <linux/kernel.h>
#include <linux/mm.h>
diff --git a/fs/coredump.c b/fs/coredump.c
index 23a539b29225..c74ab43b8383 100644
--- a/fs/coredump.c
+++ b/fs/coredump.c
@@ -17,6 +17,7 @@
#include <linux/binfmts.h>
#include <linux/coredump.h>
#include <linux/sched/coredump.h>
+#include <linux/sched/signal.h>
#include <linux/utsname.h>
#include <linux/pid_namespace.h>
#include <linux/module.h>
@@ -34,7 +35,6 @@
#include <linux/pipe_fs_i.h>
#include <linux/oom.h>
#include <linux/compat.h>
-#include <linux/sched.h>
#include <linux/fs.h>
#include <linux/path.h>
#include <linux/timekeeping.h>
diff --git a/fs/exec.c b/fs/exec.c
index 1be960ef29f5..b8ed0c542692 100644
--- a/fs/exec.c
+++ b/fs/exec.c
@@ -34,6 +34,7 @@
#include <linux/init.h>
#include <linux/sched/mm.h>
#include <linux/sched/coredump.h>
+#include <linux/sched/signal.h>
#include <linux/pagemap.h>
#include <linux/perf_event.h>
#include <linux/highmem.h>
diff --git a/fs/file.c b/fs/file.c
index 69d6990e3021..ad6f094f2eff 100644
--- a/fs/file.c
+++ b/fs/file.c
@@ -12,7 +12,7 @@
#include <linux/mm.h>
#include <linux/mmzone.h>
#include <linux/time.h>
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
#include <linux/slab.h>
#include <linux/vmalloc.h>
#include <linux/file.h>
diff --git a/fs/fs_struct.c b/fs/fs_struct.c
index 7dca743b2ce1..543ed50f0387 100644
--- a/fs/fs_struct.c
+++ b/fs/fs_struct.c
@@ -1,5 +1,5 @@
#include <linux/export.h>
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
#include <linux/fs.h>
#include <linux/path.h>
#include <linux/slab.h>
diff --git a/fs/jffs2/background.c b/fs/jffs2/background.c
index e5c1783ab64a..453a6a1fff34 100644
--- a/fs/jffs2/background.c
+++ b/fs/jffs2/background.c
@@ -16,7 +16,7 @@
#include <linux/jffs2.h>
#include <linux/mtd/mtd.h>
#include <linux/completion.h>
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
#include <linux/freezer.h>
#include <linux/kthread.h>
#include "nodelist.h"
diff --git a/fs/lockd/svc.c b/fs/lockd/svc.c
index 1c13dd80744f..725ba78ea398 100644
--- a/fs/lockd/svc.c
+++ b/fs/lockd/svc.c
@@ -17,7 +17,7 @@
#include <linux/sysctl.h>
#include <linux/moduleparam.h>
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
#include <linux/errno.h>
#include <linux/in.h>
#include <linux/uio.h>
diff --git a/fs/ncpfs/inode.c b/fs/ncpfs/inode.c
index 7eb89c23c847..d5606099712a 100644
--- a/fs/ncpfs/inode.c
+++ b/fs/ncpfs/inode.c
@@ -30,6 +30,7 @@
#include <linux/vfs.h>
#include <linux/mount.h>
#include <linux/seq_file.h>
+#include <linux/sched/signal.h>
#include <linux/namei.h>
#include <net/sock.h>
diff --git a/fs/ncpfs/sock.c b/fs/ncpfs/sock.c
index f32f272ee501..8651899cc87f 100644
--- a/fs/ncpfs/sock.c
+++ b/fs/ncpfs/sock.c
@@ -16,6 +16,7 @@
#include <linux/fcntl.h>
#include <linux/stat.h>
#include <linux/string.h>
+#include <linux/sched/signal.h>
#include <linux/uaccess.h>
#include <linux/in.h>
#include <linux/net.h>
diff --git a/fs/nfs/callback.c b/fs/nfs/callback.c
index 484bebc20bca..bb79972dc638 100644
--- a/fs/nfs/callback.c
+++ b/fs/nfs/callback.c
@@ -9,6 +9,7 @@
#include <linux/completion.h>
#include <linux/ip.h>
#include <linux/module.h>
+#include <linux/sched/signal.h>
#include <linux/sunrpc/svc.h>
#include <linux/sunrpc/svcsock.h>
#include <linux/nfs_fs.h>
diff --git a/fs/nfsd/nfssvc.c b/fs/nfsd/nfssvc.c
index e6bfd96734c0..793f521b7db3 100644
--- a/fs/nfsd/nfssvc.c
+++ b/fs/nfsd/nfssvc.c
@@ -6,7 +6,7 @@
* Copyright (C) 1995, 1996, 1997 Olaf Kirch <okir@monad.swb.de>
*/
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
#include <linux/freezer.h>
#include <linux/module.h>
#include <linux/fs_struct.h>
diff --git a/fs/proc/fd.c b/fs/proc/fd.c
index 4274f83bf100..1f22d13602f6 100644
--- a/fs/proc/fd.c
+++ b/fs/proc/fd.c
@@ -1,4 +1,4 @@
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
#include <linux/errno.h>
#include <linux/dcache.h>
#include <linux/path.h>
diff --git a/fs/select.c b/fs/select.c
index 305c0daf5d67..e2112270d75a 100644
--- a/fs/select.c
+++ b/fs/select.c
@@ -15,7 +15,8 @@
*/
#include <linux/kernel.h>
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
+#include <linux/sched/rt.h>
#include <linux/syscalls.h>
#include <linux/export.h>
#include <linux/slab.h>
@@ -26,7 +27,6 @@
#include <linux/fs.h>
#include <linux/rcupdate.h>
#include <linux/hrtimer.h>
-#include <linux/sched/rt.h>
#include <linux/freezer.h>
#include <net/busy_poll.h>
#include <linux/vmalloc.h>
diff --git a/include/linux/oom.h b/include/linux/oom.h
index b4e36e92bc87..8a266e2be5a6 100644
--- a/include/linux/oom.h
+++ b/include/linux/oom.h
@@ -2,7 +2,7 @@
#define __INCLUDE_LINUX_OOM_H
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
#include <linux/types.h>
#include <linux/nodemask.h>
#include <uapi/linux/oom.h>
diff --git a/include/linux/ptrace.h b/include/linux/ptrace.h
index e0e539321ab9..422bc2e4cb6a 100644
--- a/include/linux/ptrace.h
+++ b/include/linux/ptrace.h
@@ -3,6 +3,7 @@
#include <linux/compiler.h> /* For unlikely. */
#include <linux/sched.h> /* For struct task_struct. */
+#include <linux/sched/signal.h> /* For send_sig(), same_thread_group(), etc. */
#include <linux/err.h> /* for IS_ERR_VALUE */
#include <linux/bug.h> /* For BUG_ON. */
#include <linux/pid_namespace.h> /* For task_active_pid_ns. */
diff --git a/include/linux/sched.h b/include/linux/sched.h
index 301524b91596..9e05f9ed7c83 100644
--- a/include/linux/sched.h
+++ b/include/linux/sched.h
@@ -68,6 +68,9 @@ struct blk_plug;
struct filename;
struct nameidata;
+struct signal_struct;
+struct sighand_struct;
+
#define VMACACHE_BITS 2
#define VMACACHE_SIZE (1U << VMACACHE_BITS)
#define VMACACHE_MASK (VMACACHE_SIZE - 1)
@@ -365,13 +368,6 @@ arch_get_unmapped_area_topdown(struct file *filp, unsigned long addr,
static inline void arch_pick_mmap_layout(struct mm_struct *mm) {}
#endif
-struct sighand_struct {
- atomic_t count;
- struct k_sigaction action[_NSIG];
- spinlock_t siglock;
- wait_queue_head_t signalfd_wqh;
-};
-
struct pacct_struct {
int ac_flag;
long ac_exitcode;
@@ -490,195 +486,6 @@ struct thread_group_cputimer {
struct autogroup;
/*
- * NOTE! "signal_struct" does not have its own
- * locking, because a shared signal_struct always
- * implies a shared sighand_struct, so locking
- * sighand_struct is always a proper superset of
- * the locking of signal_struct.
- */
-struct signal_struct {
- atomic_t sigcnt;
- atomic_t live;
- int nr_threads;
- struct list_head thread_head;
-
- wait_queue_head_t wait_chldexit; /* for wait4() */
-
- /* current thread group signal load-balancing target: */
- struct task_struct *curr_target;
-
- /* shared signal handling: */
- struct sigpending shared_pending;
-
- /* thread group exit support */
- int group_exit_code;
- /* overloaded:
- * - notify group_exit_task when ->count is equal to notify_count
- * - everyone except group_exit_task is stopped during signal delivery
- * of fatal signals, group_exit_task processes the signal.
- */
- int notify_count;
- struct task_struct *group_exit_task;
-
- /* thread group stop support, overloads group_exit_code too */
- int group_stop_count;
- unsigned int flags; /* see SIGNAL_* flags below */
-
- /*
- * PR_SET_CHILD_SUBREAPER marks a process, like a service
- * manager, to re-parent orphan (double-forking) child processes
- * to this process instead of 'init'. The service manager is
- * able to receive SIGCHLD signals and is able to investigate
- * the process until it calls wait(). All children of this
- * process will inherit a flag if they should look for a
- * child_subreaper process at exit.
- */
- unsigned int is_child_subreaper:1;
- unsigned int has_child_subreaper:1;
-
-#ifdef CONFIG_POSIX_TIMERS
-
- /* POSIX.1b Interval Timers */
- int posix_timer_id;
- struct list_head posix_timers;
-
- /* ITIMER_REAL timer for the process */
- struct hrtimer real_timer;
- ktime_t it_real_incr;
-
- /*
- * ITIMER_PROF and ITIMER_VIRTUAL timers for the process, we use
- * CPUCLOCK_PROF and CPUCLOCK_VIRT for indexing array as these
- * values are defined to 0 and 1 respectively
- */
- struct cpu_itimer it[2];
-
- /*
- * Thread group totals for process CPU timers.
- * See thread_group_cputimer(), et al, for details.
- */
- struct thread_group_cputimer cputimer;
-
- /* Earliest-expiration cache. */
- struct task_cputime cputime_expires;
-
- struct list_head cpu_timers[3];
-
-#endif
-
- struct pid *leader_pid;
-
-#ifdef CONFIG_NO_HZ_FULL
- atomic_t tick_dep_mask;
-#endif
-
- struct pid *tty_old_pgrp;
-
- /* boolean value for session group leader */
- int leader;
-
- struct tty_struct *tty; /* NULL if no tty */
-
-#ifdef CONFIG_SCHED_AUTOGROUP
- struct autogroup *autogroup;
-#endif
- /*
- * Cumulative resource counters for dead threads in the group,
- * and for reaped dead child processes forked by this group.
- * Live threads maintain their own counters and add to these
- * in __exit_signal, except for the group leader.
- */
- seqlock_t stats_lock;
- u64 utime, stime, cutime, cstime;
- u64 gtime;
- u64 cgtime;
- struct prev_cputime prev_cputime;
- unsigned long nvcsw, nivcsw, cnvcsw, cnivcsw;
- unsigned long min_flt, maj_flt, cmin_flt, cmaj_flt;
- unsigned long inblock, oublock, cinblock, coublock;
- unsigned long maxrss, cmaxrss;
- struct task_io_accounting ioac;
-
- /*
- * Cumulative ns of schedule CPU time fo dead threads in the
- * group, not including a zombie group leader, (This only differs
- * from jiffies_to_ns(utime + stime) if sched_clock uses something
- * other than jiffies.)
- */
- unsigned long long sum_sched_runtime;
-
- /*
- * We don't bother to synchronize most readers of this at all,
- * because there is no reader checking a limit that actually needs
- * to get both rlim_cur and rlim_max atomically, and either one
- * alone is a single word that can safely be read normally.
- * getrlimit/setrlimit use task_lock(current->group_leader) to
- * protect this instead of the siglock, because they really
- * have no need to disable irqs.
- */
- struct rlimit rlim[RLIM_NLIMITS];
-
-#ifdef CONFIG_BSD_PROCESS_ACCT
- struct pacct_struct pacct; /* per-process accounting information */
-#endif
-#ifdef CONFIG_TASKSTATS
- struct taskstats *stats;
-#endif
-#ifdef CONFIG_AUDIT
- unsigned audit_tty;
- struct tty_audit_buf *tty_audit_buf;
-#endif
-
- /*
- * Thread is the potential origin of an oom condition; kill first on
- * oom
- */
- bool oom_flag_origin;
- short oom_score_adj; /* OOM kill score adjustment */
- short oom_score_adj_min; /* OOM kill score adjustment min value.
- * Only settable by CAP_SYS_RESOURCE. */
- struct mm_struct *oom_mm; /* recorded mm when the thread group got
- * killed by the oom killer */
-
- struct mutex cred_guard_mutex; /* guard against foreign influences on
- * credential calculations
- * (notably. ptrace) */
-};
-
-/*
- * Bits in flags field of signal_struct.
- */
-#define SIGNAL_STOP_STOPPED 0x00000001 /* job control stop in effect */
-#define SIGNAL_STOP_CONTINUED 0x00000002 /* SIGCONT since WCONTINUED reap */
-#define SIGNAL_GROUP_EXIT 0x00000004 /* group exit in progress */
-#define SIGNAL_GROUP_COREDUMP 0x00000008 /* coredump in progress */
-/*
- * Pending notifications to parent.
- */
-#define SIGNAL_CLD_STOPPED 0x00000010
-#define SIGNAL_CLD_CONTINUED 0x00000020
-#define SIGNAL_CLD_MASK (SIGNAL_CLD_STOPPED|SIGNAL_CLD_CONTINUED)
-
-#define SIGNAL_UNKILLABLE 0x00000040 /* for init: ignore fatal signals */
-
-#define SIGNAL_STOP_MASK (SIGNAL_CLD_MASK | SIGNAL_STOP_STOPPED | \
- SIGNAL_STOP_CONTINUED)
-
-static inline void signal_set_stop_flags(struct signal_struct *sig,
- unsigned int flags)
-{
- WARN_ON(sig->flags & (SIGNAL_GROUP_EXIT|SIGNAL_GROUP_COREDUMP));
- sig->flags = (sig->flags & ~SIGNAL_STOP_MASK) | flags;
-}
-
-/* If true, all threads except ->group_exit_task have pending SIGKILL */
-static inline int signal_group_exit(const struct signal_struct *sig)
-{
- return (sig->flags & SIGNAL_GROUP_EXIT) ||
- (sig->group_exit_task != NULL);
-}
-
-/*
* Some day this will be a full-fledged user tracking system..
*/
struct user_struct {
@@ -2135,190 +1942,8 @@ extern int sched_fork(unsigned long clone_flags, struct task_struct *p);
extern void sched_dead(struct task_struct *p);
extern void proc_caches_init(void);
-extern void flush_signals(struct task_struct *);
-extern void ignore_signals(struct task_struct *);
-extern void flush_signal_handlers(struct task_struct *, int force_default);
-extern int dequeue_signal(struct task_struct *tsk, sigset_t *mask, siginfo_t *info);
-
-static inline int kernel_dequeue_signal(siginfo_t *info)
-{
- struct task_struct *tsk = current;
- siginfo_t __info;
- int ret;
-
- spin_lock_irq(&tsk->sighand->siglock);
- ret = dequeue_signal(tsk, &tsk->blocked, info ?: &__info);
- spin_unlock_irq(&tsk->sighand->siglock);
-
- return ret;
-}
-
-static inline void kernel_signal_stop(void)
-{
- spin_lock_irq(¤t->sighand->siglock);
- if (current->jobctl & JOBCTL_STOP_DEQUEUED)
- __set_current_state(TASK_STOPPED);
- spin_unlock_irq(¤t->sighand->siglock);
-
- schedule();
-}
extern void release_task(struct task_struct * p);
-extern int send_sig_info(int, struct siginfo *, struct task_struct *);
-extern int force_sigsegv(int, struct task_struct *);
-extern int force_sig_info(int, struct siginfo *, struct task_struct *);
-extern int __kill_pgrp_info(int sig, struct siginfo *info, struct pid *pgrp);
-extern int kill_pid_info(int sig, struct siginfo *info, struct pid *pid);
-extern int kill_pid_info_as_cred(int, struct siginfo *, struct pid *,
- const struct cred *, u32);
-extern int kill_pgrp(struct pid *pid, int sig, int priv);
-extern int kill_pid(struct pid *pid, int sig, int priv);
-extern int kill_proc_info(int, struct siginfo *, pid_t);
-extern __must_check bool do_notify_parent(struct task_struct *, int);
-extern void __wake_up_parent(struct task_struct *p, struct task_struct *parent);
-extern void force_sig(int, struct task_struct *);
-extern int send_sig(int, struct task_struct *, int);
-extern int zap_other_threads(struct task_struct *p);
-extern struct sigqueue *sigqueue_alloc(void);
-extern void sigqueue_free(struct sigqueue *);
-extern int send_sigqueue(struct sigqueue *, struct task_struct *, int group);
-extern int do_sigaction(int, struct k_sigaction *, struct k_sigaction *);
-
-#ifdef TIF_RESTORE_SIGMASK
-/*
- * Legacy restore_sigmask accessors. These are inefficient on
- * SMP architectures because they require atomic operations.
- */
-
-/**
- * set_restore_sigmask() - make sure saved_sigmask processing gets done
- *
- * This sets TIF_RESTORE_SIGMASK and ensures that the arch signal code
- * will run before returning to user mode, to process the flag. For
- * all callers, TIF_SIGPENDING is already set or it's no harm to set
- * it. TIF_RESTORE_SIGMASK need not be in the set of bits that the
- * arch code will notice on return to user mode, in case those bits
- * are scarce. We set TIF_SIGPENDING here to ensure that the arch
- * signal code always gets run when TIF_RESTORE_SIGMASK is set.
- */
-static inline void set_restore_sigmask(void)
-{
- set_thread_flag(TIF_RESTORE_SIGMASK);
- WARN_ON(!test_thread_flag(TIF_SIGPENDING));
-}
-static inline void clear_restore_sigmask(void)
-{
- clear_thread_flag(TIF_RESTORE_SIGMASK);
-}
-static inline bool test_restore_sigmask(void)
-{
- return test_thread_flag(TIF_RESTORE_SIGMASK);
-}
-static inline bool test_and_clear_restore_sigmask(void)
-{
- return test_and_clear_thread_flag(TIF_RESTORE_SIGMASK);
-}
-
-#else /* TIF_RESTORE_SIGMASK */
-
-/* Higher-quality implementation, used if TIF_RESTORE_SIGMASK doesn't exist. */
-static inline void set_restore_sigmask(void)
-{
- current->restore_sigmask = true;
- WARN_ON(!test_thread_flag(TIF_SIGPENDING));
-}
-static inline void clear_restore_sigmask(void)
-{
- current->restore_sigmask = false;
-}
-static inline bool test_restore_sigmask(void)
-{
- return current->restore_sigmask;
-}
-static inline bool test_and_clear_restore_sigmask(void)
-{
- if (!current->restore_sigmask)
- return false;
- current->restore_sigmask = false;
- return true;
-}
-#endif
-
-static inline void restore_saved_sigmask(void)
-{
- if (test_and_clear_restore_sigmask())
- __set_current_blocked(¤t->saved_sigmask);
-}
-
-static inline sigset_t *sigmask_to_save(void)
-{
- sigset_t *res = ¤t->blocked;
- if (unlikely(test_restore_sigmask()))
- res = ¤t->saved_sigmask;
- return res;
-}
-
-static inline int kill_cad_pid(int sig, int priv)
-{
- return kill_pid(cad_pid, sig, priv);
-}
-
-/* These can be the second arg to send_sig_info/send_group_sig_info. */
-#define SEND_SIG_NOINFO ((struct siginfo *) 0)
-#define SEND_SIG_PRIV ((struct siginfo *) 1)
-#define SEND_SIG_FORCED ((struct siginfo *) 2)
-
-/*
- * True if we are on the alternate signal stack.
- */
-static inline int on_sig_stack(unsigned long sp)
-{
- /*
- * If the signal stack is SS_AUTODISARM then, by construction, we
- * can't be on the signal stack unless user code deliberately set
- * SS_AUTODISARM when we were already on it.
- *
- * This improves reliability: if user state gets corrupted such that
- * the stack pointer points very close to the end of the signal stack,
- * then this check will enable the signal to be handled anyway.
- */
- if (current->sas_ss_flags & SS_AUTODISARM)
- return 0;
-
-#ifdef CONFIG_STACK_GROWSUP
- return sp >= current->sas_ss_sp &&
- sp - current->sas_ss_sp < current->sas_ss_size;
-#else
- return sp > current->sas_ss_sp &&
- sp - current->sas_ss_sp <= current->sas_ss_size;
-#endif
-}
-
-static inline int sas_ss_flags(unsigned long sp)
-{
- if (!current->sas_ss_size)
- return SS_DISABLE;
-
- return on_sig_stack(sp) ? SS_ONSTACK : 0;
-}
-
-static inline void sas_ss_reset(struct task_struct *p)
-{
- p->sas_ss_sp = 0;
- p->sas_ss_size = 0;
- p->sas_ss_flags = SS_DISABLE;
-}
-
-static inline unsigned long sigsp(unsigned long sp, struct ksignal *ksig)
-{
- if (unlikely((ksig->ka.sa.sa_flags & SA_ONSTACK)) && ! sas_ss_flags(sp))
-#ifdef CONFIG_STACK_GROWSUP
- return current->sas_ss_sp;
-#else
- return current->sas_ss_sp + current->sas_ss_size;
-#endif
- return sp;
-}
#ifdef CONFIG_HAVE_COPY_THREAD_TLS
extern int copy_thread_tls(unsigned long, unsigned long, unsigned long,
@@ -2347,10 +1972,8 @@ static inline void exit_thread(struct task_struct *tsk)
#endif
extern void exit_files(struct task_struct *);
-extern void __cleanup_sighand(struct sighand_struct *);
extern void exit_itimers(struct signal_struct *);
-extern void flush_itimer_signals(void);
extern void do_group_exit(int);
@@ -2385,78 +2008,6 @@ static inline unsigned long wait_task_inactive(struct task_struct *p,
}
#endif
-#define tasklist_empty() \
- list_empty(&init_task.tasks)
-
-#define next_task(p) \
- list_entry_rcu((p)->tasks.next, struct task_struct, tasks)
-
-#define for_each_process(p) \
- for (p = &init_task ; (p = next_task(p)) != &init_task ; )
-
-extern bool current_is_single_threaded(void);
-
-/*
- * Careful: do_each_thread/while_each_thread is a double loop so
- * 'break' will not work as expected - use goto instead.
- */
-#define do_each_thread(g, t) \
- for (g = t = &init_task ; (g = t = next_task(g)) != &init_task ; ) do
-
-#define while_each_thread(g, t) \
- while ((t = next_thread(t)) != g)
-
-#define __for_each_thread(signal, t) \
- list_for_each_entry_rcu(t, &(signal)->thread_head, thread_node)
-
-#define for_each_thread(p, t) \
- __for_each_thread((p)->signal, t)
-
-/* Careful: this is a double loop, 'break' won't work as expected. */
-#define for_each_process_thread(p, t) \
- for_each_process(p) for_each_thread(p, t)
-
-static inline int get_nr_threads(struct task_struct *tsk)
-{
- return tsk->signal->nr_threads;
-}
-
-static inline bool thread_group_leader(struct task_struct *p)
-{
- return p->exit_signal >= 0;
-}
-
-/* Do to the insanities of de_thread it is possible for a process
- * to have the pid of the thread group leader without actually being
- * the thread group leader. For iteration through the pids in proc
- * all we care about is that we have a task with the appropriate
- * pid, we don't actually care if we have the right task.
- */
-static inline bool has_group_leader_pid(struct task_struct *p)
-{
- return task_pid(p) == p->signal->leader_pid;
-}
-
-static inline
-bool same_thread_group(struct task_struct *p1, struct task_struct *p2)
-{
- return p1->signal == p2->signal;
-}
-
-static inline struct task_struct *next_thread(const struct task_struct *p)
-{
- return list_entry_rcu(p->thread_group.next,
- struct task_struct, thread_group);
-}
-
-static inline int thread_group_empty(struct task_struct *p)
-{
- return list_empty(&p->thread_group);
-}
-
-#define delay_group_leader(p) \
- (thread_group_leader(p) && !thread_group_empty(p))
-
/*
* Protects ->fs, ->files, ->mm, ->group_info, ->comm, keyring
* subscriptions and synchronises with wait4(). Also used in procfs. Also
@@ -2477,25 +2028,6 @@ static inline void task_unlock(struct task_struct *p)
spin_unlock(&p->alloc_lock);
}
-extern struct sighand_struct *__lock_task_sighand(struct task_struct *tsk,
- unsigned long *flags);
-
-static inline struct sighand_struct *lock_task_sighand(struct task_struct *tsk,
- unsigned long *flags)
-{
- struct sighand_struct *ret;
-
- ret = __lock_task_sighand(tsk, flags);
- (void)__cond_lock(&tsk->sighand->siglock, ret);
- return ret;
-}
-
-static inline void unlock_task_sighand(struct task_struct *tsk,
- unsigned long *flags)
-{
- spin_unlock_irqrestore(&tsk->sighand->siglock, *flags);
-}
-
/**
* threadgroup_change_begin - mark the beginning of changes to a threadgroup
* @tsk: task causing the changes
@@ -2905,28 +2437,6 @@ static inline void mm_update_next_owner(struct mm_struct *mm)
}
#endif /* CONFIG_MEMCG */
-static inline unsigned long task_rlimit(const struct task_struct *tsk,
- unsigned int limit)
-{
- return READ_ONCE(tsk->signal->rlim[limit].rlim_cur);
-}
-
-static inline unsigned long task_rlimit_max(const struct task_struct *tsk,
- unsigned int limit)
-{
- return READ_ONCE(tsk->signal->rlim[limit].rlim_max);
-}
-
-static inline unsigned long rlimit(unsigned int limit)
-{
- return task_rlimit(current, limit);
-}
-
-static inline unsigned long rlimit_max(unsigned int limit)
-{
- return task_rlimit_max(current, limit);
-}
-
#define SCHED_CPUFREQ_RT (1U << 0)
#define SCHED_CPUFREQ_DL (1U << 1)
#define SCHED_CPUFREQ_IOWAIT (1U << 2)
diff --git a/include/linux/sched/signal.h b/include/linux/sched/signal.h
new file mode 100644
index 000000000000..613d9f9b3fe5
--- /dev/null
+++ b/include/linux/sched/signal.h
@@ -0,0 +1,505 @@
+#ifndef _LINUX_SCHED_SIGNAL_H
+#define _LINUX_SCHED_SIGNAL_H
+
+#include <linux/sched.h>
+
+/*
+ * Types defining task->signal and task->sighand and APIs using them:
+ */
+
+struct sighand_struct {
+ atomic_t count;
+ struct k_sigaction action[_NSIG];
+ spinlock_t siglock;
+ wait_queue_head_t signalfd_wqh;
+};
+
+/*
+ * NOTE! "signal_struct" does not have its own
+ * locking, because a shared signal_struct always
+ * implies a shared sighand_struct, so locking
+ * sighand_struct is always a proper superset of
+ * the locking of signal_struct.
+ */
+struct signal_struct {
+ atomic_t sigcnt;
+ atomic_t live;
+ int nr_threads;
+ struct list_head thread_head;
+
+ wait_queue_head_t wait_chldexit; /* for wait4() */
+
+ /* current thread group signal load-balancing target: */
+ struct task_struct *curr_target;
+
+ /* shared signal handling: */
+ struct sigpending shared_pending;
+
+ /* thread group exit support */
+ int group_exit_code;
+ /* overloaded:
+ * - notify group_exit_task when ->count is equal to notify_count
+ * - everyone except group_exit_task is stopped during signal delivery
+ * of fatal signals, group_exit_task processes the signal.
+ */
+ int notify_count;
+ struct task_struct *group_exit_task;
+
+ /* thread group stop support, overloads group_exit_code too */
+ int group_stop_count;
+ unsigned int flags; /* see SIGNAL_* flags below */
+
+ /*
+ * PR_SET_CHILD_SUBREAPER marks a process, like a service
+ * manager, to re-parent orphan (double-forking) child processes
+ * to this process instead of 'init'. The service manager is
+ * able to receive SIGCHLD signals and is able to investigate
+ * the process until it calls wait(). All children of this
+ * process will inherit a flag if they should look for a
+ * child_subreaper process at exit.
+ */
+ unsigned int is_child_subreaper:1;
+ unsigned int has_child_subreaper:1;
+
+#ifdef CONFIG_POSIX_TIMERS
+
+ /* POSIX.1b Interval Timers */
+ int posix_timer_id;
+ struct list_head posix_timers;
+
+ /* ITIMER_REAL timer for the process */
+ struct hrtimer real_timer;
+ ktime_t it_real_incr;
+
+ /*
+ * ITIMER_PROF and ITIMER_VIRTUAL timers for the process, we use
+ * CPUCLOCK_PROF and CPUCLOCK_VIRT for indexing array as these
+ * values are defined to 0 and 1 respectively
+ */
+ struct cpu_itimer it[2];
+
+ /*
+ * Thread group totals for process CPU timers.
+ * See thread_group_cputimer(), et al, for details.
+ */
+ struct thread_group_cputimer cputimer;
+
+ /* Earliest-expiration cache. */
+ struct task_cputime cputime_expires;
+
+ struct list_head cpu_timers[3];
+
+#endif
+
+ struct pid *leader_pid;
+
+#ifdef CONFIG_NO_HZ_FULL
+ atomic_t tick_dep_mask;
+#endif
+
+ struct pid *tty_old_pgrp;
+
+ /* boolean value for session group leader */
+ int leader;
+
+ struct tty_struct *tty; /* NULL if no tty */
+
+#ifdef CONFIG_SCHED_AUTOGROUP
+ struct autogroup *autogroup;
+#endif
+ /*
+ * Cumulative resource counters for dead threads in the group,
+ * and for reaped dead child processes forked by this group.
+ * Live threads maintain their own counters and add to these
+ * in __exit_signal, except for the group leader.
+ */
+ seqlock_t stats_lock;
+ u64 utime, stime, cutime, cstime;
+ u64 gtime;
+ u64 cgtime;
+ struct prev_cputime prev_cputime;
+ unsigned long nvcsw, nivcsw, cnvcsw, cnivcsw;
+ unsigned long min_flt, maj_flt, cmin_flt, cmaj_flt;
+ unsigned long inblock, oublock, cinblock, coublock;
+ unsigned long maxrss, cmaxrss;
+ struct task_io_accounting ioac;
+
+ /*
+ * Cumulative ns of schedule CPU time fo dead threads in the
+ * group, not including a zombie group leader, (This only differs
+ * from jiffies_to_ns(utime + stime) if sched_clock uses something
+ * other than jiffies.)
+ */
+ unsigned long long sum_sched_runtime;
+
+ /*
+ * We don't bother to synchronize most readers of this at all,
+ * because there is no reader checking a limit that actually needs
+ * to get both rlim_cur and rlim_max atomically, and either one
+ * alone is a single word that can safely be read normally.
+ * getrlimit/setrlimit use task_lock(current->group_leader) to
+ * protect this instead of the siglock, because they really
+ * have no need to disable irqs.
+ */
+ struct rlimit rlim[RLIM_NLIMITS];
+
+#ifdef CONFIG_BSD_PROCESS_ACCT
+ struct pacct_struct pacct; /* per-process accounting information */
+#endif
+#ifdef CONFIG_TASKSTATS
+ struct taskstats *stats;
+#endif
+#ifdef CONFIG_AUDIT
+ unsigned audit_tty;
+ struct tty_audit_buf *tty_audit_buf;
+#endif
+
+ /*
+ * Thread is the potential origin of an oom condition; kill first on
+ * oom
+ */
+ bool oom_flag_origin;
+ short oom_score_adj; /* OOM kill score adjustment */
+ short oom_score_adj_min; /* OOM kill score adjustment min value.
+ * Only settable by CAP_SYS_RESOURCE. */
+ struct mm_struct *oom_mm; /* recorded mm when the thread group got
+ * killed by the oom killer */
+
+ struct mutex cred_guard_mutex; /* guard against foreign influences on
+ * credential calculations
+ * (notably. ptrace) */
+};
+
+/*
+ * Bits in flags field of signal_struct.
+ */
+#define SIGNAL_STOP_STOPPED 0x00000001 /* job control stop in effect */
+#define SIGNAL_STOP_CONTINUED 0x00000002 /* SIGCONT since WCONTINUED reap */
+#define SIGNAL_GROUP_EXIT 0x00000004 /* group exit in progress */
+#define SIGNAL_GROUP_COREDUMP 0x00000008 /* coredump in progress */
+/*
+ * Pending notifications to parent.
+ */
+#define SIGNAL_CLD_STOPPED 0x00000010
+#define SIGNAL_CLD_CONTINUED 0x00000020
+#define SIGNAL_CLD_MASK (SIGNAL_CLD_STOPPED|SIGNAL_CLD_CONTINUED)
+
+#define SIGNAL_UNKILLABLE 0x00000040 /* for init: ignore fatal signals */
+
+#define SIGNAL_STOP_MASK (SIGNAL_CLD_MASK | SIGNAL_STOP_STOPPED | \
+ SIGNAL_STOP_CONTINUED)
+
+static inline void signal_set_stop_flags(struct signal_struct *sig,
+ unsigned int flags)
+{
+ WARN_ON(sig->flags & (SIGNAL_GROUP_EXIT|SIGNAL_GROUP_COREDUMP));
+ sig->flags = (sig->flags & ~SIGNAL_STOP_MASK) | flags;
+}
+
+/* If true, all threads except ->group_exit_task have pending SIGKILL */
+static inline int signal_group_exit(const struct signal_struct *sig)
+{
+ return (sig->flags & SIGNAL_GROUP_EXIT) ||
+ (sig->group_exit_task != NULL);
+}
+
+extern void flush_signals(struct task_struct *);
+extern void ignore_signals(struct task_struct *);
+extern void flush_signal_handlers(struct task_struct *, int force_default);
+extern int dequeue_signal(struct task_struct *tsk, sigset_t *mask, siginfo_t *info);
+
+static inline int kernel_dequeue_signal(siginfo_t *info)
+{
+ struct task_struct *tsk = current;
+ siginfo_t __info;
+ int ret;
+
+ spin_lock_irq(&tsk->sighand->siglock);
+ ret = dequeue_signal(tsk, &tsk->blocked, info ?: &__info);
+ spin_unlock_irq(&tsk->sighand->siglock);
+
+ return ret;
+}
+
+static inline void kernel_signal_stop(void)
+{
+ spin_lock_irq(¤t->sighand->siglock);
+ if (current->jobctl & JOBCTL_STOP_DEQUEUED)
+ __set_current_state(TASK_STOPPED);
+ spin_unlock_irq(¤t->sighand->siglock);
+
+ schedule();
+}
+extern int send_sig_info(int, struct siginfo *, struct task_struct *);
+extern int force_sigsegv(int, struct task_struct *);
+extern int force_sig_info(int, struct siginfo *, struct task_struct *);
+extern int __kill_pgrp_info(int sig, struct siginfo *info, struct pid *pgrp);
+extern int kill_pid_info(int sig, struct siginfo *info, struct pid *pid);
+extern int kill_pid_info_as_cred(int, struct siginfo *, struct pid *,
+ const struct cred *, u32);
+extern int kill_pgrp(struct pid *pid, int sig, int priv);
+extern int kill_pid(struct pid *pid, int sig, int priv);
+extern int kill_proc_info(int, struct siginfo *, pid_t);
+extern __must_check bool do_notify_parent(struct task_struct *, int);
+extern void __wake_up_parent(struct task_struct *p, struct task_struct *parent);
+extern void force_sig(int, struct task_struct *);
+extern int send_sig(int, struct task_struct *, int);
+extern int zap_other_threads(struct task_struct *p);
+extern struct sigqueue *sigqueue_alloc(void);
+extern void sigqueue_free(struct sigqueue *);
+extern int send_sigqueue(struct sigqueue *, struct task_struct *, int group);
+extern int do_sigaction(int, struct k_sigaction *, struct k_sigaction *);
+
+#ifdef TIF_RESTORE_SIGMASK
+/*
+ * Legacy restore_sigmask accessors. These are inefficient on
+ * SMP architectures because they require atomic operations.
+ */
+
+/**
+ * set_restore_sigmask() - make sure saved_sigmask processing gets done
+ *
+ * This sets TIF_RESTORE_SIGMASK and ensures that the arch signal code
+ * will run before returning to user mode, to process the flag. For
+ * all callers, TIF_SIGPENDING is already set or it's no harm to set
+ * it. TIF_RESTORE_SIGMASK need not be in the set of bits that the
+ * arch code will notice on return to user mode, in case those bits
+ * are scarce. We set TIF_SIGPENDING here to ensure that the arch
+ * signal code always gets run when TIF_RESTORE_SIGMASK is set.
+ */
+static inline void set_restore_sigmask(void)
+{
+ set_thread_flag(TIF_RESTORE_SIGMASK);
+ WARN_ON(!test_thread_flag(TIF_SIGPENDING));
+}
+static inline void clear_restore_sigmask(void)
+{
+ clear_thread_flag(TIF_RESTORE_SIGMASK);
+}
+static inline bool test_restore_sigmask(void)
+{
+ return test_thread_flag(TIF_RESTORE_SIGMASK);
+}
+static inline bool test_and_clear_restore_sigmask(void)
+{
+ return test_and_clear_thread_flag(TIF_RESTORE_SIGMASK);
+}
+
+#else /* TIF_RESTORE_SIGMASK */
+
+/* Higher-quality implementation, used if TIF_RESTORE_SIGMASK doesn't exist. */
+static inline void set_restore_sigmask(void)
+{
+ current->restore_sigmask = true;
+ WARN_ON(!test_thread_flag(TIF_SIGPENDING));
+}
+static inline void clear_restore_sigmask(void)
+{
+ current->restore_sigmask = false;
+}
+static inline bool test_restore_sigmask(void)
+{
+ return current->restore_sigmask;
+}
+static inline bool test_and_clear_restore_sigmask(void)
+{
+ if (!current->restore_sigmask)
+ return false;
+ current->restore_sigmask = false;
+ return true;
+}
+#endif
+
+static inline void restore_saved_sigmask(void)
+{
+ if (test_and_clear_restore_sigmask())
+ __set_current_blocked(¤t->saved_sigmask);
+}
+
+static inline sigset_t *sigmask_to_save(void)
+{
+ sigset_t *res = ¤t->blocked;
+ if (unlikely(test_restore_sigmask()))
+ res = ¤t->saved_sigmask;
+ return res;
+}
+
+static inline int kill_cad_pid(int sig, int priv)
+{
+ return kill_pid(cad_pid, sig, priv);
+}
+
+/* These can be the second arg to send_sig_info/send_group_sig_info. */
+#define SEND_SIG_NOINFO ((struct siginfo *) 0)
+#define SEND_SIG_PRIV ((struct siginfo *) 1)
+#define SEND_SIG_FORCED ((struct siginfo *) 2)
+
+/*
+ * True if we are on the alternate signal stack.
+ */
+static inline int on_sig_stack(unsigned long sp)
+{
+ /*
+ * If the signal stack is SS_AUTODISARM then, by construction, we
+ * can't be on the signal stack unless user code deliberately set
+ * SS_AUTODISARM when we were already on it.
+ *
+ * This improves reliability: if user state gets corrupted such that
+ * the stack pointer points very close to the end of the signal stack,
+ * then this check will enable the signal to be handled anyway.
+ */
+ if (current->sas_ss_flags & SS_AUTODISARM)
+ return 0;
+
+#ifdef CONFIG_STACK_GROWSUP
+ return sp >= current->sas_ss_sp &&
+ sp - current->sas_ss_sp < current->sas_ss_size;
+#else
+ return sp > current->sas_ss_sp &&
+ sp - current->sas_ss_sp <= current->sas_ss_size;
+#endif
+}
+
+static inline int sas_ss_flags(unsigned long sp)
+{
+ if (!current->sas_ss_size)
+ return SS_DISABLE;
+
+ return on_sig_stack(sp) ? SS_ONSTACK : 0;
+}
+
+static inline void sas_ss_reset(struct task_struct *p)
+{
+ p->sas_ss_sp = 0;
+ p->sas_ss_size = 0;
+ p->sas_ss_flags = SS_DISABLE;
+}
+
+static inline unsigned long sigsp(unsigned long sp, struct ksignal *ksig)
+{
+ if (unlikely((ksig->ka.sa.sa_flags & SA_ONSTACK)) && ! sas_ss_flags(sp))
+#ifdef CONFIG_STACK_GROWSUP
+ return current->sas_ss_sp;
+#else
+ return current->sas_ss_sp + current->sas_ss_size;
+#endif
+ return sp;
+}
+
+extern void __cleanup_sighand(struct sighand_struct *);
+extern void flush_itimer_signals(void);
+
+#define tasklist_empty() \
+ list_empty(&init_task.tasks)
+
+#define next_task(p) \
+ list_entry_rcu((p)->tasks.next, struct task_struct, tasks)
+
+#define for_each_process(p) \
+ for (p = &init_task ; (p = next_task(p)) != &init_task ; )
+
+extern bool current_is_single_threaded(void);
+
+/*
+ * Careful: do_each_thread/while_each_thread is a double loop so
+ * 'break' will not work as expected - use goto instead.
+ */
+#define do_each_thread(g, t) \
+ for (g = t = &init_task ; (g = t = next_task(g)) != &init_task ; ) do
+
+#define while_each_thread(g, t) \
+ while ((t = next_thread(t)) != g)
+
+#define __for_each_thread(signal, t) \
+ list_for_each_entry_rcu(t, &(signal)->thread_head, thread_node)
+
+#define for_each_thread(p, t) \
+ __for_each_thread((p)->signal, t)
+
+/* Careful: this is a double loop, 'break' won't work as expected. */
+#define for_each_process_thread(p, t) \
+ for_each_process(p) for_each_thread(p, t)
+
+static inline int get_nr_threads(struct task_struct *tsk)
+{
+ return tsk->signal->nr_threads;
+}
+
+static inline bool thread_group_leader(struct task_struct *p)
+{
+ return p->exit_signal >= 0;
+}
+
+/* Do to the insanities of de_thread it is possible for a process
+ * to have the pid of the thread group leader without actually being
+ * the thread group leader. For iteration through the pids in proc
+ * all we care about is that we have a task with the appropriate
+ * pid, we don't actually care if we have the right task.
+ */
+static inline bool has_group_leader_pid(struct task_struct *p)
+{
+ return task_pid(p) == p->signal->leader_pid;
+}
+
+static inline
+bool same_thread_group(struct task_struct *p1, struct task_struct *p2)
+{
+ return p1->signal == p2->signal;
+}
+
+static inline struct task_struct *next_thread(const struct task_struct *p)
+{
+ return list_entry_rcu(p->thread_group.next,
+ struct task_struct, thread_group);
+}
+
+static inline int thread_group_empty(struct task_struct *p)
+{
+ return list_empty(&p->thread_group);
+}
+
+#define delay_group_leader(p) \
+ (thread_group_leader(p) && !thread_group_empty(p))
+
+extern struct sighand_struct *__lock_task_sighand(struct task_struct *tsk,
+ unsigned long *flags);
+
+static inline struct sighand_struct *lock_task_sighand(struct task_struct *tsk,
+ unsigned long *flags)
+{
+ struct sighand_struct *ret;
+
+ ret = __lock_task_sighand(tsk, flags);
+ (void)__cond_lock(&tsk->sighand->siglock, ret);
+ return ret;
+}
+
+static inline void unlock_task_sighand(struct task_struct *tsk,
+ unsigned long *flags)
+{
+ spin_unlock_irqrestore(&tsk->sighand->siglock, *flags);
+}
+
+static inline unsigned long task_rlimit(const struct task_struct *tsk,
+ unsigned int limit)
+{
+ return READ_ONCE(tsk->signal->rlim[limit].rlim_cur);
+}
+
+static inline unsigned long task_rlimit_max(const struct task_struct *tsk,
+ unsigned int limit)
+{
+ return READ_ONCE(tsk->signal->rlim[limit].rlim_max);
+}
+
+static inline unsigned long rlimit(unsigned int limit)
+{
+ return task_rlimit(current, limit);
+}
+
+static inline unsigned long rlimit_max(unsigned int limit)
+{
+ return task_rlimit_max(current, limit);
+}
+
+#endif /* _LINUX_SCHED_SIGNAL_H */
diff --git a/include/linux/signalfd.h b/include/linux/signalfd.h
index eadbe227c256..4985048640a7 100644
--- a/include/linux/signalfd.h
+++ b/include/linux/signalfd.h
@@ -8,7 +8,7 @@
#define _LINUX_SIGNALFD_H
#include <uapi/linux/signalfd.h>
-
+#include <linux/sched/signal.h>
#ifdef CONFIG_SIGNALFD
diff --git a/include/linux/taskstats_kern.h b/include/linux/taskstats_kern.h
index 58de6edf751f..e2a5daf8d14f 100644
--- a/include/linux/taskstats_kern.h
+++ b/include/linux/taskstats_kern.h
@@ -8,7 +8,7 @@
#define _LINUX_TASKSTATS_KERN_H
#include <linux/taskstats.h>
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
#include <linux/slab.h>
#ifdef CONFIG_TASKSTATS
diff --git a/ipc/mqueue.c b/ipc/mqueue.c
index a604f1036067..318d618eac81 100644
--- a/ipc/mqueue.c
+++ b/ipc/mqueue.c
@@ -36,6 +36,7 @@
#include <linux/user_namespace.h>
#include <linux/slab.h>
#include <linux/sched/wake_q.h>
+#include <linux/sched/signal.h>
#include <net/sock.h>
#include "util.h"
diff --git a/kernel/bpf/syscall.c b/kernel/bpf/syscall.c
index 19b6129eab23..4ddd0100fbfe 100644
--- a/kernel/bpf/syscall.c
+++ b/kernel/bpf/syscall.c
@@ -12,6 +12,7 @@
#include <linux/bpf.h>
#include <linux/syscalls.h>
#include <linux/slab.h>
+#include <linux/sched/signal.h>
#include <linux/vmalloc.h>
#include <linux/mmzone.h>
#include <linux/anon_inodes.h>
diff --git a/kernel/cpu.c b/kernel/cpu.c
index 0a5f630f5c54..0aae3183b029 100644
--- a/kernel/cpu.c
+++ b/kernel/cpu.c
@@ -7,7 +7,7 @@
#include <linux/smp.h>
#include <linux/init.h>
#include <linux/notifier.h>
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
#include <linux/unistd.h>
#include <linux/cpu.h>
#include <linux/oom.h>
diff --git a/kernel/debug/gdbstub.c b/kernel/debug/gdbstub.c
index 19d9a578c753..7510dc687c0d 100644
--- a/kernel/debug/gdbstub.c
+++ b/kernel/debug/gdbstub.c
@@ -29,6 +29,7 @@
*/
#include <linux/kernel.h>
+#include <linux/sched/signal.h>
#include <linux/kgdb.h>
#include <linux/kdb.h>
#include <linux/serial_core.h>
diff --git a/kernel/debug/kdb/kdb_bt.c b/kernel/debug/kdb/kdb_bt.c
index fe15fff5df53..9b976a42376d 100644
--- a/kernel/debug/kdb/kdb_bt.c
+++ b/kernel/debug/kdb/kdb_bt.c
@@ -12,7 +12,7 @@
#include <linux/ctype.h>
#include <linux/string.h>
#include <linux/kernel.h>
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
#include <linux/kdb.h>
#include <linux/nmi.h>
#include "kdb_private.h"
diff --git a/kernel/hung_task.c b/kernel/hung_task.c
index 40c07e4fa116..129247e56902 100644
--- a/kernel/hung_task.c
+++ b/kernel/hung_task.c
@@ -16,6 +16,8 @@
#include <linux/export.h>
#include <linux/sysctl.h>
#include <linux/utsname.h>
+#include <linux/sched/signal.h>
+
#include <trace/events/sched.h>
/*
diff --git a/kernel/rcu/update.c b/kernel/rcu/update.c
index 4f6db7e6a117..80fe269a90b4 100644
--- a/kernel/rcu/update.c
+++ b/kernel/rcu/update.c
@@ -36,7 +36,7 @@
#include <linux/spinlock.h>
#include <linux/smp.h>
#include <linux/interrupt.h>
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
#include <linux/atomic.h>
#include <linux/bitops.h>
#include <linux/percpu.h>
diff --git a/kernel/sched/sched.h b/kernel/sched/sched.h
index e2307a6c29f1..641249471952 100644
--- a/kernel/sched/sched.h
+++ b/kernel/sched/sched.h
@@ -5,6 +5,7 @@
#include <linux/sched/rt.h>
#include <linux/sched/clock.h>
#include <linux/sched/wake_q.h>
+#include <linux/sched/signal.h>
#include <linux/sched/mm.h>
#include <linux/u64_stats_sync.h>
#include <linux/sched/deadline.h>
diff --git a/kernel/time/itimer.c b/kernel/time/itimer.c
index a95f13c31464..f6b961c5e58c 100644
--- a/kernel/time/itimer.c
+++ b/kernel/time/itimer.c
@@ -10,6 +10,7 @@
#include <linux/interrupt.h>
#include <linux/syscalls.h>
#include <linux/time.h>
+#include <linux/sched/signal.h>
#include <linux/posix-timers.h>
#include <linux/hrtimer.h>
#include <trace/events/timer.h>
diff --git a/kernel/time/posix-cpu-timers.c b/kernel/time/posix-cpu-timers.c
index b4377a5e4269..a2475a9f57d8 100644
--- a/kernel/time/posix-cpu-timers.c
+++ b/kernel/time/posix-cpu-timers.c
@@ -2,7 +2,7 @@
* Implement CPU time clocks for the POSIX clock interface.
*/
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
#include <linux/posix-timers.h>
#include <linux/errno.h>
#include <linux/math64.h>
diff --git a/kernel/time/tick-sched.c b/kernel/time/tick-sched.c
index 302e8090d412..71bf056e782e 100644
--- a/kernel/time/tick-sched.c
+++ b/kernel/time/tick-sched.c
@@ -18,7 +18,7 @@
#include <linux/kernel_stat.h>
#include <linux/percpu.h>
#include <linux/profile.h>
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
#include <linux/sched/clock.h>
#include <linux/module.h>
#include <linux/irq_work.h>
diff --git a/kernel/tracepoint.c b/kernel/tracepoint.c
index 1f9a31f934a4..9f6984d52fec 100644
--- a/kernel/tracepoint.c
+++ b/kernel/tracepoint.c
@@ -24,7 +24,7 @@
#include <linux/tracepoint.h>
#include <linux/err.h>
#include <linux/slab.h>
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
#include <linux/static_key.h>
extern struct tracepoint * const __start___tracepoints_ptrs[];
diff --git a/kernel/tsacct.c b/kernel/tsacct.c
index 571a2d3821d8..d9a03b80b75d 100644
--- a/kernel/tsacct.c
+++ b/kernel/tsacct.c
@@ -17,7 +17,7 @@
*/
#include <linux/kernel.h>
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
#include <linux/sched/mm.h>
#include <linux/tsacct_kern.h>
#include <linux/acct.h>
diff --git a/kernel/user_namespace.c b/kernel/user_namespace.c
index 86b7854fec8e..2f735cbe05e8 100644
--- a/kernel/user_namespace.c
+++ b/kernel/user_namespace.c
@@ -8,6 +8,7 @@
#include <linux/export.h>
#include <linux/nsproxy.h>
#include <linux/slab.h>
+#include <linux/sched/signal.h>
#include <linux/user_namespace.h>
#include <linux/proc_ns.h>
#include <linux/highuid.h>
diff --git a/lib/is_single_threaded.c b/lib/is_single_threaded.c
index 391fd23976a2..9745cfffcb69 100644
--- a/lib/is_single_threaded.c
+++ b/lib/is_single_threaded.c
@@ -9,8 +9,7 @@
* as published by the Free Software Foundation; either version
* 2 of the Licence, or (at your option) any later version.
*/
-
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
/*
* Returns true if the task does not share ->mm with another thread/process.
diff --git a/mm/filemap.c b/mm/filemap.c
index b772a33ef640..9c8abbcc59ee 100644
--- a/mm/filemap.c
+++ b/mm/filemap.c
@@ -13,6 +13,7 @@
#include <linux/compiler.h>
#include <linux/dax.h>
#include <linux/fs.h>
+#include <linux/sched/signal.h>
#include <linux/uaccess.h>
#include <linux/capability.h>
#include <linux/kernel_stat.h>
diff --git a/mm/kmemleak.c b/mm/kmemleak.c
index da3436953022..2df6d3687b2a 100644
--- a/mm/kmemleak.c
+++ b/mm/kmemleak.c
@@ -73,7 +73,7 @@
#include <linux/init.h>
#include <linux/kernel.h>
#include <linux/list.h>
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
#include <linux/jiffies.h>
#include <linux/delay.h>
#include <linux/export.h>
diff --git a/mm/memory-failure.c b/mm/memory-failure.c
index f283c7e0a2a3..ab9f24730aa0 100644
--- a/mm/memory-failure.c
+++ b/mm/memory-failure.c
@@ -40,7 +40,7 @@
#include <linux/mm.h>
#include <linux/page-flags.h>
#include <linux/kernel-page-flags.h>
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
#include <linux/ksm.h>
#include <linux/rmap.h>
#include <linux/export.h>
diff --git a/mm/vmacache.c b/mm/vmacache.c
index 035fdeb35b43..7799f7b00981 100644
--- a/mm/vmacache.c
+++ b/mm/vmacache.c
@@ -1,7 +1,7 @@
/*
* Copyright (C) 2014 Davidlohr Bueso.
*/
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
#include <linux/mm.h>
#include <linux/vmacache.h>
diff --git a/net/9p/client.c b/net/9p/client.c
index 3fc94a49ccd5..25cfd8a4bc36 100644
--- a/net/9p/client.c
+++ b/net/9p/client.c
@@ -32,7 +32,7 @@
#include <linux/idr.h>
#include <linux/mutex.h>
#include <linux/slab.h>
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
#include <linux/uaccess.h>
#include <linux/uio.h>
#include <net/9p/9p.h>
diff --git a/net/atm/common.c b/net/atm/common.c
index a3ca922d307b..9613381f5db0 100644
--- a/net/atm/common.c
+++ b/net/atm/common.c
@@ -13,7 +13,7 @@
#include <linux/errno.h> /* error codes */
#include <linux/capability.h>
#include <linux/mm.h>
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
#include <linux/time.h> /* struct timeval */
#include <linux/skbuff.h>
#include <linux/bitops.h>
diff --git a/net/ax25/af_ax25.c b/net/ax25/af_ax25.c
index 90fcf5fc2e0a..a8e42cedf1db 100644
--- a/net/ax25/af_ax25.c
+++ b/net/ax25/af_ax25.c
@@ -20,7 +20,7 @@
#include <linux/socket.h>
#include <linux/in.h>
#include <linux/kernel.h>
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
#include <linux/timer.h>
#include <linux/string.h>
#include <linux/sockios.h>
diff --git a/net/caif/caif_socket.c b/net/caif/caif_socket.c
index 92cbbd2afddb..adcad344c843 100644
--- a/net/caif/caif_socket.c
+++ b/net/caif/caif_socket.c
@@ -9,7 +9,7 @@
#include <linux/fs.h>
#include <linux/init.h>
#include <linux/module.h>
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
#include <linux/spinlock.h>
#include <linux/mutex.h>
#include <linux/list.h>
diff --git a/net/core/stream.c b/net/core/stream.c
index f575bcf64af2..20231dbb1da0 100644
--- a/net/core/stream.c
+++ b/net/core/stream.c
@@ -13,6 +13,7 @@
*/
#include <linux/module.h>
+#include <linux/sched/signal.h>
#include <linux/net.h>
#include <linux/signal.h>
#include <linux/tcp.h>
diff --git a/net/decnet/af_decnet.c b/net/decnet/af_decnet.c
index a90ed67027b0..e6e79eda9763 100644
--- a/net/decnet/af_decnet.c
+++ b/net/decnet/af_decnet.c
@@ -106,7 +106,7 @@ Version 0.0.6 2.1.110 07-aug-98 Eduardo Marcelo Serrat
#include <linux/socket.h>
#include <linux/in.h>
#include <linux/kernel.h>
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
#include <linux/timer.h>
#include <linux/string.h>
#include <linux/sockios.h>
diff --git a/net/irda/af_irda.c b/net/irda/af_irda.c
index ab254041dab7..81adc29a448d 100644
--- a/net/irda/af_irda.c
+++ b/net/irda/af_irda.c
@@ -46,6 +46,7 @@
#include <linux/socket.h>
#include <linux/sockios.h>
#include <linux/slab.h>
+#include <linux/sched/signal.h>
#include <linux/init.h>
#include <linux/net.h>
#include <linux/irda.h>
diff --git a/net/netrom/af_netrom.c b/net/netrom/af_netrom.c
index ed212ffc1d9d..4bbf4526b885 100644
--- a/net/netrom/af_netrom.c
+++ b/net/netrom/af_netrom.c
@@ -17,7 +17,7 @@
#include <linux/in.h>
#include <linux/slab.h>
#include <linux/kernel.h>
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
#include <linux/timer.h>
#include <linux/string.h>
#include <linux/sockios.h>
diff --git a/net/rose/af_rose.c b/net/rose/af_rose.c
index 9ad301c46b88..b8a1df2c9785 100644
--- a/net/rose/af_rose.c
+++ b/net/rose/af_rose.c
@@ -20,7 +20,7 @@
#include <linux/in.h>
#include <linux/slab.h>
#include <linux/kernel.h>
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
#include <linux/spinlock.h>
#include <linux/timer.h>
#include <linux/string.h>
diff --git a/net/sctp/socket.c b/net/sctp/socket.c
index 37eeab7899fc..095cfd4447d8 100644
--- a/net/sctp/socket.c
+++ b/net/sctp/socket.c
@@ -57,6 +57,7 @@
#include <linux/kernel.h>
#include <linux/wait.h>
#include <linux/time.h>
+#include <linux/sched/signal.h>
#include <linux/ip.h>
#include <linux/capability.h>
#include <linux/fcntl.h>
diff --git a/net/sunrpc/svc.c b/net/sunrpc/svc.c
index 75f290bddca1..3d28d1112369 100644
--- a/net/sunrpc/svc.c
+++ b/net/sunrpc/svc.c
@@ -11,7 +11,7 @@
*/
#include <linux/linkage.h>
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
#include <linux/errno.h>
#include <linux/net.h>
#include <linux/in.h>
diff --git a/net/unix/af_unix.c b/net/unix/af_unix.c
index cef79873b09d..cc1d6bb34483 100644
--- a/net/unix/af_unix.c
+++ b/net/unix/af_unix.c
@@ -85,7 +85,7 @@
#include <linux/module.h>
#include <linux/kernel.h>
#include <linux/signal.h>
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
#include <linux/errno.h>
#include <linux/string.h>
#include <linux/stat.h>
diff --git a/net/x25/af_x25.c b/net/x25/af_x25.c
index 079c883aa96e..fd28a49dbe8f 100644
--- a/net/x25/af_x25.c
+++ b/net/x25/af_x25.c
@@ -41,7 +41,7 @@
#include <linux/capability.h>
#include <linux/errno.h>
#include <linux/kernel.h>
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
#include <linux/timer.h>
#include <linux/string.h>
#include <linux/net.h>
diff --git a/security/selinux/hooks.c b/security/selinux/hooks.c
index c7c6619431d5..cc06e95025ba 100644
--- a/security/selinux/hooks.c
+++ b/security/selinux/hooks.c
@@ -28,7 +28,7 @@
#include <linux/kernel.h>
#include <linux/tracehook.h>
#include <linux/errno.h>
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
#include <linux/lsm_hooks.h>
#include <linux/xattr.h>
#include <linux/capability.h>
--
2.7.4
^ permalink raw reply related [flat|nested] 119+ messages in thread
* [PATCH 21/89] sched/headers: Remove unused 'task_can_switch_user()' prototype
2017-02-06 13:28 [PATCH 00/89] Major reorganization of <linux/sched.h> Ingo Molnar
` (19 preceding siblings ...)
2017-02-06 13:28 ` [PATCH 20/89] sched/headers, signals: Separate out task_struct::signal and task_struct::sighand types and accessors into <linux/sched/signal.h> Ingo Molnar
@ 2017-02-06 13:28 ` Ingo Molnar
2017-02-06 13:28 ` [PATCH 22/89] sched/headers: Move 'struct user_struct' definition and APIs to the new <linux/sched/user.h> header Ingo Molnar
` (69 subsequent siblings)
90 siblings, 0 replies; 119+ messages in thread
From: Ingo Molnar @ 2017-02-06 13:28 UTC (permalink / raw)
To: linux-kernel
Cc: Andrew Morton, Linus Torvalds, Mike Galbraith, Oleg Nesterov,
Peter Zijlstra, Thomas Gleixner
The function does not exist anymore.
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
include/linux/sched.h | 3 ---
1 file changed, 3 deletions(-)
diff --git a/include/linux/sched.h b/include/linux/sched.h
index 9e05f9ed7c83..5c9b06947914 100644
--- a/include/linux/sched.h
+++ b/include/linux/sched.h
@@ -2384,9 +2384,6 @@ extern long sched_getaffinity(pid_t pid, struct cpumask *mask);
extern struct task_group root_task_group;
#endif /* CONFIG_CGROUP_SCHED */
-extern int task_can_switch_user(struct user_struct *up,
- struct task_struct *tsk);
-
#ifdef CONFIG_TASK_XACCT
static inline void add_rchar(struct task_struct *tsk, ssize_t amt)
{
--
2.7.4
^ permalink raw reply related [flat|nested] 119+ messages in thread
* [PATCH 22/89] sched/headers: Move 'struct user_struct' definition and APIs to the new <linux/sched/user.h> header
2017-02-06 13:28 [PATCH 00/89] Major reorganization of <linux/sched.h> Ingo Molnar
` (20 preceding siblings ...)
2017-02-06 13:28 ` [PATCH 21/89] sched/headers: Remove unused 'task_can_switch_user()' prototype Ingo Molnar
@ 2017-02-06 13:28 ` Ingo Molnar
2017-02-06 13:28 ` [PATCH 23/89] sched/headers, softlockup: Move softlockup detector watchdog methods to <linux/nmi.h> Ingo Molnar
` (68 subsequent siblings)
90 siblings, 0 replies; 119+ messages in thread
From: Ingo Molnar @ 2017-02-06 13:28 UTC (permalink / raw)
To: linux-kernel
Cc: Andrew Morton, Linus Torvalds, Mike Galbraith, Oleg Nesterov,
Peter Zijlstra, Thomas Gleixner
'struct user_struct' was added to sched.h historically, but it's actually
entirely independent of task_struct and of scheduler details, so move
it to its own header.
Fix up .c files using those facilities.
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
block/ioprio.c | 1 +
include/linux/cred.h | 2 +-
include/linux/sched.h | 57 ---------------------------------------------------------
include/linux/sched/user.h | 64 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
ipc/mqueue.c | 1 +
kernel/fork.c | 1 +
kernel/signal.c | 1 +
kernel/user.c | 1 +
mm/mlock.c | 1 +
net/core/scm.c | 1 +
security/keys/process_keys.c | 1 +
11 files changed, 73 insertions(+), 58 deletions(-)
diff --git a/block/ioprio.c b/block/ioprio.c
index 01b8116298a1..f68f31476a33 100644
--- a/block/ioprio.c
+++ b/block/ioprio.c
@@ -25,6 +25,7 @@
#include <linux/ioprio.h>
#include <linux/blkdev.h>
#include <linux/capability.h>
+#include <linux/sched/user.h>
#include <linux/syscalls.h>
#include <linux/security.h>
#include <linux/pid_namespace.h>
diff --git a/include/linux/cred.h b/include/linux/cred.h
index f0e70a1bb3ac..045d33e48069 100644
--- a/include/linux/cred.h
+++ b/include/linux/cred.h
@@ -18,8 +18,8 @@
#include <linux/selinux.h>
#include <linux/atomic.h>
#include <linux/uidgid.h>
+#include <linux/sched/user.h>
-struct user_struct;
struct cred;
struct inode;
diff --git a/include/linux/sched.h b/include/linux/sched.h
index 5c9b06947914..f8cbe401181c 100644
--- a/include/linux/sched.h
+++ b/include/linux/sched.h
@@ -353,7 +353,6 @@ extern void io_schedule(void);
void __noreturn do_task_dead(void);
struct nsproxy;
-struct user_namespace;
#ifdef CONFIG_MMU
extern void arch_pick_mmap_layout(struct mm_struct *mm);
@@ -485,53 +484,6 @@ struct thread_group_cputimer {
#include <linux/rwsem.h>
struct autogroup;
-/*
- * Some day this will be a full-fledged user tracking system..
- */
-struct user_struct {
- atomic_t __count; /* reference count */
- atomic_t processes; /* How many processes does this user have? */
- atomic_t sigpending; /* How many pending signals does this user have? */
-#ifdef CONFIG_INOTIFY_USER
- atomic_t inotify_watches; /* How many inotify watches does this user have? */
- atomic_t inotify_devs; /* How many inotify devs does this user have opened? */
-#endif
-#ifdef CONFIG_FANOTIFY
- atomic_t fanotify_listeners;
-#endif
-#ifdef CONFIG_EPOLL
- atomic_long_t epoll_watches; /* The number of file descriptors currently watched */
-#endif
-#ifdef CONFIG_POSIX_MQUEUE
- /* protected by mq_lock */
- unsigned long mq_bytes; /* How many bytes can be allocated to mqueue? */
-#endif
- unsigned long locked_shm; /* How many pages of mlocked shm ? */
- unsigned long unix_inflight; /* How many files in flight in unix sockets */
- atomic_long_t pipe_bufs; /* how many pages are allocated in pipe buffers */
-
-#ifdef CONFIG_KEYS
- struct key *uid_keyring; /* UID specific keyring */
- struct key *session_keyring; /* UID's default session keyring */
-#endif
-
- /* Hash table maintenance information */
- struct hlist_node uidhash_node;
- kuid_t uid;
-
-#if defined(CONFIG_PERF_EVENTS) || defined(CONFIG_BPF_SYSCALL)
- atomic_long_t locked_vm;
-#endif
-};
-
-extern int uids_sysfs_init(void);
-
-extern struct user_struct *find_user(kuid_t);
-
-extern struct user_struct root_user;
-#define INIT_USER (&root_user)
-
-
struct backing_dev_info;
struct reclaim_state;
@@ -1917,15 +1869,6 @@ extern struct task_struct *find_task_by_vpid(pid_t nr);
extern struct task_struct *find_task_by_pid_ns(pid_t nr,
struct pid_namespace *ns);
-/* per-UID process charging. */
-extern struct user_struct * alloc_uid(kuid_t);
-static inline struct user_struct *get_uid(struct user_struct *u)
-{
- atomic_inc(&u->__count);
- return u;
-}
-extern void free_uid(struct user_struct *);
-
#include <asm/current.h>
extern void xtime_update(unsigned long ticks);
diff --git a/include/linux/sched/user.h b/include/linux/sched/user.h
new file mode 100644
index 000000000000..7b615b61a0dc
--- /dev/null
+++ b/include/linux/sched/user.h
@@ -0,0 +1,64 @@
+#ifndef _LINUX_SCHED_USER_H
+#define _LINUX_SCHED_USER_H
+
+#include <linux/uidgid.h>
+
+struct key;
+
+/*
+ * Some day this will be a full-fledged user tracking system..
+ */
+struct user_struct {
+ atomic_t __count; /* reference count */
+ atomic_t processes; /* How many processes does this user have? */
+ atomic_t sigpending; /* How many pending signals does this user have? */
+#ifdef CONFIG_INOTIFY_USER
+ atomic_t inotify_watches; /* How many inotify watches does this user have? */
+ atomic_t inotify_devs; /* How many inotify devs does this user have opened? */
+#endif
+#ifdef CONFIG_FANOTIFY
+ atomic_t fanotify_listeners;
+#endif
+#ifdef CONFIG_EPOLL
+ atomic_long_t epoll_watches; /* The number of file descriptors currently watched */
+#endif
+#ifdef CONFIG_POSIX_MQUEUE
+ /* protected by mq_lock */
+ unsigned long mq_bytes; /* How many bytes can be allocated to mqueue? */
+#endif
+ unsigned long locked_shm; /* How many pages of mlocked shm ? */
+ unsigned long unix_inflight; /* How many files in flight in unix sockets */
+ atomic_long_t pipe_bufs; /* how many pages are allocated in pipe buffers */
+
+#ifdef CONFIG_KEYS
+ struct key *uid_keyring; /* UID specific keyring */
+ struct key *session_keyring; /* UID's default session keyring */
+#endif
+
+ /* Hash table maintenance information */
+ struct hlist_node uidhash_node;
+ kuid_t uid;
+
+#if defined(CONFIG_PERF_EVENTS) || defined(CONFIG_BPF_SYSCALL)
+ atomic_long_t locked_vm;
+#endif
+};
+
+extern int uids_sysfs_init(void);
+
+extern struct user_struct *find_user(kuid_t);
+
+extern struct user_struct root_user;
+#define INIT_USER (&root_user)
+
+
+/* per-UID process charging. */
+extern struct user_struct * alloc_uid(kuid_t);
+static inline struct user_struct *get_uid(struct user_struct *u)
+{
+ atomic_inc(&u->__count);
+ return u;
+}
+extern void free_uid(struct user_struct *);
+
+#endif /* _LINUX_SCHED_USER_H */
diff --git a/ipc/mqueue.c b/ipc/mqueue.c
index 318d618eac81..3a99c0b41198 100644
--- a/ipc/mqueue.c
+++ b/ipc/mqueue.c
@@ -37,6 +37,7 @@
#include <linux/slab.h>
#include <linux/sched/wake_q.h>
#include <linux/sched/signal.h>
+#include <linux/sched/user.h>
#include <net/sock.h>
#include "util.h"
diff --git a/kernel/fork.c b/kernel/fork.c
index ab86fd8667d8..1c6916090277 100644
--- a/kernel/fork.c
+++ b/kernel/fork.c
@@ -15,6 +15,7 @@
#include <linux/sched/autogroup.h>
#include <linux/sched/mm.h>
#include <linux/sched/coredump.h>
+#include <linux/sched/user.h>
#include <linux/init.h>
#include <linux/unistd.h>
#include <linux/module.h>
diff --git a/kernel/signal.c b/kernel/signal.c
index 13f9def8b24a..08bba8751c0e 100644
--- a/kernel/signal.c
+++ b/kernel/signal.c
@@ -14,6 +14,7 @@
#include <linux/export.h>
#include <linux/init.h>
#include <linux/sched.h>
+#include <linux/sched/user.h>
#include <linux/fs.h>
#include <linux/tty.h>
#include <linux/binfmts.h>
diff --git a/kernel/user.c b/kernel/user.c
index b069ccbfb0b0..00281add65b2 100644
--- a/kernel/user.c
+++ b/kernel/user.c
@@ -13,6 +13,7 @@
#include <linux/slab.h>
#include <linux/bitops.h>
#include <linux/key.h>
+#include <linux/sched/user.h>
#include <linux/interrupt.h>
#include <linux/export.h>
#include <linux/user_namespace.h>
diff --git a/mm/mlock.c b/mm/mlock.c
index cdbed8aaa426..1050511f8b2b 100644
--- a/mm/mlock.c
+++ b/mm/mlock.c
@@ -8,6 +8,7 @@
#include <linux/capability.h>
#include <linux/mman.h>
#include <linux/mm.h>
+#include <linux/sched/user.h>
#include <linux/swap.h>
#include <linux/swapops.h>
#include <linux/pagemap.h>
diff --git a/net/core/scm.c b/net/core/scm.c
index d8820438ba37..f201d3c5707b 100644
--- a/net/core/scm.c
+++ b/net/core/scm.c
@@ -14,6 +14,7 @@
#include <linux/capability.h>
#include <linux/errno.h>
#include <linux/sched.h>
+#include <linux/sched/user.h>
#include <linux/mm.h>
#include <linux/kernel.h>
#include <linux/stat.h>
diff --git a/security/keys/process_keys.c b/security/keys/process_keys.c
index 918cddcd4516..b6fdd22205b1 100644
--- a/security/keys/process_keys.c
+++ b/security/keys/process_keys.c
@@ -12,6 +12,7 @@
#include <linux/module.h>
#include <linux/init.h>
#include <linux/sched.h>
+#include <linux/sched/user.h>
#include <linux/keyctl.h>
#include <linux/fs.h>
#include <linux/err.h>
--
2.7.4
^ permalink raw reply related [flat|nested] 119+ messages in thread
* [PATCH 23/89] sched/headers, softlockup: Move softlockup detector watchdog methods to <linux/nmi.h>
2017-02-06 13:28 [PATCH 00/89] Major reorganization of <linux/sched.h> Ingo Molnar
` (21 preceding siblings ...)
2017-02-06 13:28 ` [PATCH 22/89] sched/headers: Move 'struct user_struct' definition and APIs to the new <linux/sched/user.h> header Ingo Molnar
@ 2017-02-06 13:28 ` Ingo Molnar
2017-02-06 13:28 ` [PATCH 24/89] sched/headers: Remove #include <linux/capability.h> from <linux/sched.h> Ingo Molnar
` (67 subsequent siblings)
90 siblings, 0 replies; 119+ messages in thread
From: Ingo Molnar @ 2017-02-06 13:28 UTC (permalink / raw)
To: linux-kernel
Cc: Andrew Morton, Linus Torvalds, Mike Galbraith, Oleg Nesterov,
Peter Zijlstra, Thomas Gleixner
These methods don't belong into <linux/sched.h>, they are neither directly
related to task_struct or are scheduler functionality.
Put them next to the other watchdog methods in <linux/nmi.h>.
( Arguably that header's name is a misnomer, and this patch makes it
more so - but it should be renamed in another patch. )
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
arch/ia64/kernel/time.c | 1 +
arch/ia64/kernel/uncached.c | 1 +
arch/powerpc/kernel/swsusp_64.c | 1 +
arch/x86/kernel/pvclock.c | 2 ++
arch/x86/xen/smp.c | 1 +
drivers/ide/ide-taskfile.c | 1 +
drivers/mtd/nand/nand_base.c | 1 +
drivers/video/fbdev/nvidia/nv_accel.c | 2 ++
include/linux/nmi.h | 37 +++++++++++++++++++++++++++++++++++++
include/linux/sched.h | 37 -------------------------------------
init/main.c | 1 +
kernel/debug/debug_core.c | 1 +
kernel/power/hibernate.c | 1 +
kernel/power/snapshot.c | 1 +
kernel/sched/clock.c | 1 +
kernel/time/tick-sched.c | 1 +
kernel/time/timekeeping.c | 1 +
17 files changed, 54 insertions(+), 37 deletions(-)
diff --git a/arch/ia64/kernel/time.c b/arch/ia64/kernel/time.c
index faa116822c4c..144f9db7a876 100644
--- a/arch/ia64/kernel/time.c
+++ b/arch/ia64/kernel/time.c
@@ -16,6 +16,7 @@
#include <linux/profile.h>
#include <linux/sched.h>
#include <linux/time.h>
+#include <linux/nmi.h>
#include <linux/interrupt.h>
#include <linux/efi.h>
#include <linux/timex.h>
diff --git a/arch/ia64/kernel/uncached.c b/arch/ia64/kernel/uncached.c
index f3976da36721..583f7ff6b589 100644
--- a/arch/ia64/kernel/uncached.c
+++ b/arch/ia64/kernel/uncached.c
@@ -19,6 +19,7 @@
#include <linux/errno.h>
#include <linux/string.h>
#include <linux/efi.h>
+#include <linux/nmi.h>
#include <linux/genalloc.h>
#include <linux/gfp.h>
#include <asm/page.h>
diff --git a/arch/powerpc/kernel/swsusp_64.c b/arch/powerpc/kernel/swsusp_64.c
index 0e899e47c325..51db012808f5 100644
--- a/arch/powerpc/kernel/swsusp_64.c
+++ b/arch/powerpc/kernel/swsusp_64.c
@@ -10,6 +10,7 @@
#include <linux/irq.h>
#include <linux/sched.h>
#include <linux/interrupt.h>
+#include <linux/nmi.h>
void do_after_copyback(void)
{
diff --git a/arch/x86/kernel/pvclock.c b/arch/x86/kernel/pvclock.c
index 9e93fe5803b4..5c3f6d6a5078 100644
--- a/arch/x86/kernel/pvclock.c
+++ b/arch/x86/kernel/pvclock.c
@@ -21,6 +21,8 @@
#include <linux/sched.h>
#include <linux/gfp.h>
#include <linux/bootmem.h>
+#include <linux/nmi.h>
+
#include <asm/fixmap.h>
#include <asm/pvclock.h>
diff --git a/arch/x86/xen/smp.c b/arch/x86/xen/smp.c
index 311acad7dad2..c876963b92eb 100644
--- a/arch/x86/xen/smp.c
+++ b/arch/x86/xen/smp.c
@@ -18,6 +18,7 @@
#include <linux/smp.h>
#include <linux/irq_work.h>
#include <linux/tick.h>
+#include <linux/nmi.h>
#include <asm/paravirt.h>
#include <asm/desc.h>
diff --git a/drivers/ide/ide-taskfile.c b/drivers/ide/ide-taskfile.c
index a716693417a3..399c98128d48 100644
--- a/drivers/ide/ide-taskfile.c
+++ b/drivers/ide/ide-taskfile.c
@@ -19,6 +19,7 @@
#include <linux/delay.h>
#include <linux/hdreg.h>
#include <linux/ide.h>
+#include <linux/nmi.h>
#include <linux/scatterlist.h>
#include <linux/uaccess.h>
diff --git a/drivers/mtd/nand/nand_base.c b/drivers/mtd/nand/nand_base.c
index ec1c28aaaf23..5f5db185e24c 100644
--- a/drivers/mtd/nand/nand_base.c
+++ b/drivers/mtd/nand/nand_base.c
@@ -36,6 +36,7 @@
#include <linux/sched.h>
#include <linux/slab.h>
#include <linux/mm.h>
+#include <linux/nmi.h>
#include <linux/types.h>
#include <linux/mtd/mtd.h>
#include <linux/mtd/nand.h>
diff --git a/drivers/video/fbdev/nvidia/nv_accel.c b/drivers/video/fbdev/nvidia/nv_accel.c
index ad6472a894ea..7341fed63e35 100644
--- a/drivers/video/fbdev/nvidia/nv_accel.c
+++ b/drivers/video/fbdev/nvidia/nv_accel.c
@@ -48,6 +48,8 @@
*/
#include <linux/fb.h>
+#include <linux/nmi.h>
+
#include "nv_type.h"
#include "nv_proto.h"
#include "nv_dma.h"
diff --git a/include/linux/nmi.h b/include/linux/nmi.h
index 0a3fadc32693..aa3cd0878270 100644
--- a/include/linux/nmi.h
+++ b/include/linux/nmi.h
@@ -7,6 +7,43 @@
#include <linux/sched.h>
#include <asm/irq.h>
+#ifdef CONFIG_LOCKUP_DETECTOR
+extern void touch_softlockup_watchdog_sched(void);
+extern void touch_softlockup_watchdog(void);
+extern void touch_softlockup_watchdog_sync(void);
+extern void touch_all_softlockup_watchdogs(void);
+extern int proc_dowatchdog_thresh(struct ctl_table *table, int write,
+ void __user *buffer,
+ size_t *lenp, loff_t *ppos);
+extern unsigned int softlockup_panic;
+extern unsigned int hardlockup_panic;
+void lockup_detector_init(void);
+#else
+static inline void touch_softlockup_watchdog_sched(void)
+{
+}
+static inline void touch_softlockup_watchdog(void)
+{
+}
+static inline void touch_softlockup_watchdog_sync(void)
+{
+}
+static inline void touch_all_softlockup_watchdogs(void)
+{
+}
+static inline void lockup_detector_init(void)
+{
+}
+#endif
+
+#ifdef CONFIG_DETECT_HUNG_TASK
+void reset_hung_task_detector(void);
+#else
+static inline void reset_hung_task_detector(void)
+{
+}
+#endif
+
/*
* The run state of the lockup detectors is controlled by the content of the
* 'watchdog_enabled' variable. Each lockup detector has its dedicated bit -
diff --git a/include/linux/sched.h b/include/linux/sched.h
index f8cbe401181c..121f2df0711a 100644
--- a/include/linux/sched.h
+++ b/include/linux/sched.h
@@ -290,43 +290,6 @@ extern int sched_cpu_dying(unsigned int cpu);
extern void sched_show_task(struct task_struct *p);
-#ifdef CONFIG_LOCKUP_DETECTOR
-extern void touch_softlockup_watchdog_sched(void);
-extern void touch_softlockup_watchdog(void);
-extern void touch_softlockup_watchdog_sync(void);
-extern void touch_all_softlockup_watchdogs(void);
-extern int proc_dowatchdog_thresh(struct ctl_table *table, int write,
- void __user *buffer,
- size_t *lenp, loff_t *ppos);
-extern unsigned int softlockup_panic;
-extern unsigned int hardlockup_panic;
-void lockup_detector_init(void);
-#else
-static inline void touch_softlockup_watchdog_sched(void)
-{
-}
-static inline void touch_softlockup_watchdog(void)
-{
-}
-static inline void touch_softlockup_watchdog_sync(void)
-{
-}
-static inline void touch_all_softlockup_watchdogs(void)
-{
-}
-static inline void lockup_detector_init(void)
-{
-}
-#endif
-
-#ifdef CONFIG_DETECT_HUNG_TASK
-void reset_hung_task_detector(void);
-#else
-static inline void reset_hung_task_detector(void)
-{
-}
-#endif
-
/* Attach to any functions which should be ignored in wchan output. */
#define __sched __attribute__((__section__(".sched.text")))
diff --git a/init/main.c b/init/main.c
index 19228149386c..148ce7162486 100644
--- a/init/main.c
+++ b/init/main.c
@@ -26,6 +26,7 @@
#include <linux/bootmem.h>
#include <linux/acpi.h>
#include <linux/tty.h>
+#include <linux/nmi.h>
#include <linux/percpu.h>
#include <linux/kmod.h>
#include <linux/vmalloc.h>
diff --git a/kernel/debug/debug_core.c b/kernel/debug/debug_core.c
index 79517e5549f1..356157373dd2 100644
--- a/kernel/debug/debug_core.c
+++ b/kernel/debug/debug_core.c
@@ -49,6 +49,7 @@
#include <linux/init.h>
#include <linux/kgdb.h>
#include <linux/kdb.h>
+#include <linux/nmi.h>
#include <linux/pid.h>
#include <linux/smp.h>
#include <linux/mm.h>
diff --git a/kernel/power/hibernate.c b/kernel/power/hibernate.c
index b26dbc48c75b..75d44afc5758 100644
--- a/kernel/power/hibernate.c
+++ b/kernel/power/hibernate.c
@@ -21,6 +21,7 @@
#include <linux/fs.h>
#include <linux/mount.h>
#include <linux/pm.h>
+#include <linux/nmi.h>
#include <linux/console.h>
#include <linux/cpu.h>
#include <linux/freezer.h>
diff --git a/kernel/power/snapshot.c b/kernel/power/snapshot.c
index 2d8e2b227db8..31ea16353207 100644
--- a/kernel/power/snapshot.c
+++ b/kernel/power/snapshot.c
@@ -22,6 +22,7 @@
#include <linux/device.h>
#include <linux/init.h>
#include <linux/bootmem.h>
+#include <linux/nmi.h>
#include <linux/syscalls.h>
#include <linux/console.h>
#include <linux/highmem.h>
diff --git a/kernel/sched/clock.c b/kernel/sched/clock.c
index dd7817cdbf58..a08795e21628 100644
--- a/kernel/sched/clock.c
+++ b/kernel/sched/clock.c
@@ -58,6 +58,7 @@
#include <linux/percpu.h>
#include <linux/ktime.h>
#include <linux/sched.h>
+#include <linux/nmi.h>
#include <linux/sched/clock.h>
#include <linux/static_key.h>
#include <linux/workqueue.h>
diff --git a/kernel/time/tick-sched.c b/kernel/time/tick-sched.c
index 71bf056e782e..449257037ff1 100644
--- a/kernel/time/tick-sched.c
+++ b/kernel/time/tick-sched.c
@@ -17,6 +17,7 @@
#include <linux/interrupt.h>
#include <linux/kernel_stat.h>
#include <linux/percpu.h>
+#include <linux/nmi.h>
#include <linux/profile.h>
#include <linux/sched/signal.h>
#include <linux/sched/clock.h>
diff --git a/kernel/time/timekeeping.c b/kernel/time/timekeeping.c
index fb564acee0f3..5b63a2102c29 100644
--- a/kernel/time/timekeeping.c
+++ b/kernel/time/timekeeping.c
@@ -14,6 +14,7 @@
#include <linux/percpu.h>
#include <linux/init.h>
#include <linux/mm.h>
+#include <linux/nmi.h>
#include <linux/sched.h>
#include <linux/sched/loadavg.h>
#include <linux/syscore_ops.h>
--
2.7.4
^ permalink raw reply related [flat|nested] 119+ messages in thread
* [PATCH 24/89] sched/headers: Remove #include <linux/capability.h> from <linux/sched.h>
2017-02-06 13:28 [PATCH 00/89] Major reorganization of <linux/sched.h> Ingo Molnar
` (22 preceding siblings ...)
2017-02-06 13:28 ` [PATCH 23/89] sched/headers, softlockup: Move softlockup detector watchdog methods to <linux/nmi.h> Ingo Molnar
@ 2017-02-06 13:28 ` Ingo Molnar
2017-02-06 13:28 ` [PATCH 25/89] sched/headers, cgroups: Remove the threadgroup_change_*() wrappery Ingo Molnar
` (66 subsequent siblings)
90 siblings, 0 replies; 119+ messages in thread
From: Ingo Molnar @ 2017-02-06 13:28 UTC (permalink / raw)
To: linux-kernel
Cc: Andrew Morton, Linus Torvalds, Mike Galbraith, Oleg Nesterov,
Peter Zijlstra, Thomas Gleixner
The <linux/sched.h> header does not actually make use of any
types or APIs defined in <linux/capability.h>, so remove its inclusion.
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
include/linux/sched.h | 1 -
1 file changed, 1 deletion(-)
diff --git a/include/linux/sched.h b/include/linux/sched.h
index 121f2df0711a..c36df08ac7bf 100644
--- a/include/linux/sched.h
+++ b/include/linux/sched.h
@@ -7,7 +7,6 @@
#include <asm/param.h> /* for HZ */
-#include <linux/capability.h>
#include <linux/threads.h>
#include <linux/kernel.h>
#include <linux/types.h>
--
2.7.4
^ permalink raw reply related [flat|nested] 119+ messages in thread
* [PATCH 25/89] sched/headers, cgroups: Remove the threadgroup_change_*() wrappery
2017-02-06 13:28 [PATCH 00/89] Major reorganization of <linux/sched.h> Ingo Molnar
` (23 preceding siblings ...)
2017-02-06 13:28 ` [PATCH 24/89] sched/headers: Remove #include <linux/capability.h> from <linux/sched.h> Ingo Molnar
@ 2017-02-06 13:28 ` Ingo Molnar
2017-02-06 13:28 ` [PATCH 26/89] sched/headers: Remove unused <linux/cgroup-defs.h> include from <linux/sched.h> Ingo Molnar
` (65 subsequent siblings)
90 siblings, 0 replies; 119+ messages in thread
From: Ingo Molnar @ 2017-02-06 13:28 UTC (permalink / raw)
To: linux-kernel
Cc: Andrew Morton, Linus Torvalds, Mike Galbraith, Oleg Nesterov,
Peter Zijlstra, Thomas Gleixner
threadgroup_change_begin()/end() is a pointless wrapper around
cgroup_threadgroup_change_begin()/end(), minus a might_sleep()
in the !CONFIG_CGROUPS=y case.
Remove the wrappery, move the might_sleep() (the down_read()
already has a might_sleep() check).
This debloats <linux/sched.h> a bit and simplifies this API.
Update all call sites.
No change in functionality.
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
fs/exec.c | 6 +++---
include/linux/cgroup-defs.h | 13 ++++++++-----
include/linux/sched.h | 28 ----------------------------
kernel/cgroup_pids.c | 2 +-
kernel/fork.c | 6 +++---
kernel/signal.c | 6 +++---
6 files changed, 18 insertions(+), 43 deletions(-)
diff --git a/fs/exec.c b/fs/exec.c
index b8ed0c542692..2a24d7d435ba 100644
--- a/fs/exec.c
+++ b/fs/exec.c
@@ -1091,7 +1091,7 @@ static int de_thread(struct task_struct *tsk)
struct task_struct *leader = tsk->group_leader;
for (;;) {
- threadgroup_change_begin(tsk);
+ cgroup_threadgroup_change_begin(tsk);
write_lock_irq(&tasklist_lock);
/*
* Do this under tasklist_lock to ensure that
@@ -1102,7 +1102,7 @@ static int de_thread(struct task_struct *tsk)
break;
__set_current_state(TASK_KILLABLE);
write_unlock_irq(&tasklist_lock);
- threadgroup_change_end(tsk);
+ cgroup_threadgroup_change_end(tsk);
schedule();
if (unlikely(__fatal_signal_pending(tsk)))
goto killed;
@@ -1160,7 +1160,7 @@ static int de_thread(struct task_struct *tsk)
if (unlikely(leader->ptrace))
__wake_up_parent(leader, leader->parent);
write_unlock_irq(&tasklist_lock);
- threadgroup_change_end(tsk);
+ cgroup_threadgroup_change_end(tsk);
release_task(leader);
}
diff --git a/include/linux/cgroup-defs.h b/include/linux/cgroup-defs.h
index 861b4677fc5b..c5eac7631377 100644
--- a/include/linux/cgroup-defs.h
+++ b/include/linux/cgroup-defs.h
@@ -528,8 +528,8 @@ extern struct percpu_rw_semaphore cgroup_threadgroup_rwsem;
* cgroup_threadgroup_change_begin - threadgroup exclusion for cgroups
* @tsk: target task
*
- * Called from threadgroup_change_begin() and allows cgroup operations to
- * synchronize against threadgroup changes using a percpu_rw_semaphore.
+ * Allows cgroup operations to synchronize against threadgroup changes
+ * using a percpu_rw_semaphore.
*/
static inline void cgroup_threadgroup_change_begin(struct task_struct *tsk)
{
@@ -540,8 +540,7 @@ static inline void cgroup_threadgroup_change_begin(struct task_struct *tsk)
* cgroup_threadgroup_change_end - threadgroup exclusion for cgroups
* @tsk: target task
*
- * Called from threadgroup_change_end(). Counterpart of
- * cgroup_threadcgroup_change_begin().
+ * Counterpart of cgroup_threadcgroup_change_begin().
*/
static inline void cgroup_threadgroup_change_end(struct task_struct *tsk)
{
@@ -552,7 +551,11 @@ static inline void cgroup_threadgroup_change_end(struct task_struct *tsk)
#define CGROUP_SUBSYS_COUNT 0
-static inline void cgroup_threadgroup_change_begin(struct task_struct *tsk) {}
+static inline void cgroup_threadgroup_change_begin(struct task_struct *tsk)
+{
+ might_sleep();
+}
+
static inline void cgroup_threadgroup_change_end(struct task_struct *tsk) {}
#endif /* CONFIG_CGROUPS */
diff --git a/include/linux/sched.h b/include/linux/sched.h
index c36df08ac7bf..00039e0e63a4 100644
--- a/include/linux/sched.h
+++ b/include/linux/sched.h
@@ -1933,34 +1933,6 @@ static inline void task_unlock(struct task_struct *p)
spin_unlock(&p->alloc_lock);
}
-/**
- * threadgroup_change_begin - mark the beginning of changes to a threadgroup
- * @tsk: task causing the changes
- *
- * All operations which modify a threadgroup - a new thread joining the
- * group, death of a member thread (the assertion of PF_EXITING) and
- * exec(2) dethreading the process and replacing the leader - are wrapped
- * by threadgroup_change_{begin|end}(). This is to provide a place which
- * subsystems needing threadgroup stability can hook into for
- * synchronization.
- */
-static inline void threadgroup_change_begin(struct task_struct *tsk)
-{
- might_sleep();
- cgroup_threadgroup_change_begin(tsk);
-}
-
-/**
- * threadgroup_change_end - mark the end of changes to a threadgroup
- * @tsk: task causing the changes
- *
- * See threadgroup_change_begin().
- */
-static inline void threadgroup_change_end(struct task_struct *tsk)
-{
- cgroup_threadgroup_change_end(tsk);
-}
-
#ifdef CONFIG_THREAD_INFO_IN_TASK
static inline struct thread_info *task_thread_info(struct task_struct *task)
diff --git a/kernel/cgroup_pids.c b/kernel/cgroup_pids.c
index 2bd673783f1a..e756dae49300 100644
--- a/kernel/cgroup_pids.c
+++ b/kernel/cgroup_pids.c
@@ -214,7 +214,7 @@ static void pids_cancel_attach(struct cgroup_taskset *tset)
/*
* task_css_check(true) in pids_can_fork() and pids_cancel_fork() relies
- * on threadgroup_change_begin() held by the copy_process().
+ * on cgroup_threadgroup_change_begin() held by the copy_process().
*/
static int pids_can_fork(struct task_struct *task)
{
diff --git a/kernel/fork.c b/kernel/fork.c
index 1c6916090277..9c577368b30d 100644
--- a/kernel/fork.c
+++ b/kernel/fork.c
@@ -1749,7 +1749,7 @@ static __latent_entropy struct task_struct *copy_process(
INIT_LIST_HEAD(&p->thread_group);
p->task_works = NULL;
- threadgroup_change_begin(current);
+ cgroup_threadgroup_change_begin(current);
/*
* Ensure that the cgroup subsystem policies allow the new process to be
* forked. It should be noted the the new process's css_set can be changed
@@ -1839,7 +1839,7 @@ static __latent_entropy struct task_struct *copy_process(
proc_fork_connector(p);
cgroup_post_fork(p);
- threadgroup_change_end(current);
+ cgroup_threadgroup_change_end(current);
perf_event_fork(p);
trace_task_newtask(p, clone_flags);
@@ -1850,7 +1850,7 @@ static __latent_entropy struct task_struct *copy_process(
bad_fork_cancel_cgroup:
cgroup_cancel_fork(p);
bad_fork_free_pid:
- threadgroup_change_end(current);
+ cgroup_threadgroup_change_end(current);
if (pid != &init_struct_pid)
free_pid(pid);
bad_fork_cleanup_thread:
diff --git a/kernel/signal.c b/kernel/signal.c
index 08bba8751c0e..26d7975cac66 100644
--- a/kernel/signal.c
+++ b/kernel/signal.c
@@ -2396,11 +2396,11 @@ void exit_signals(struct task_struct *tsk)
* @tsk is about to have PF_EXITING set - lock out users which
* expect stable threadgroup.
*/
- threadgroup_change_begin(tsk);
+ cgroup_threadgroup_change_begin(tsk);
if (thread_group_empty(tsk) || signal_group_exit(tsk->signal)) {
tsk->flags |= PF_EXITING;
- threadgroup_change_end(tsk);
+ cgroup_threadgroup_change_end(tsk);
return;
}
@@ -2411,7 +2411,7 @@ void exit_signals(struct task_struct *tsk)
*/
tsk->flags |= PF_EXITING;
- threadgroup_change_end(tsk);
+ cgroup_threadgroup_change_end(tsk);
if (!signal_pending(tsk))
goto out;
--
2.7.4
^ permalink raw reply related [flat|nested] 119+ messages in thread
* [PATCH 26/89] sched/headers: Remove unused <linux/cgroup-defs.h> include from <linux/sched.h>
2017-02-06 13:28 [PATCH 00/89] Major reorganization of <linux/sched.h> Ingo Molnar
` (24 preceding siblings ...)
2017-02-06 13:28 ` [PATCH 25/89] sched/headers, cgroups: Remove the threadgroup_change_*() wrappery Ingo Molnar
@ 2017-02-06 13:28 ` Ingo Molnar
2017-02-06 13:28 ` [PATCH 27/89] sched/headers: Move 'struct pacct_struct' and 'struct cpu_itimer' form <linux/sched.h> to <linux/sched/signal.h> Ingo Molnar
` (64 subsequent siblings)
90 siblings, 0 replies; 119+ messages in thread
From: Ingo Molnar @ 2017-02-06 13:28 UTC (permalink / raw)
To: linux-kernel
Cc: Andrew Morton, Linus Torvalds, Mike Galbraith, Oleg Nesterov,
Peter Zijlstra, Thomas Gleixner
It's not used by anything in <linux/sched.h> anymore.
This reduces the preprocessed size of <linux/sched.h> and
speeds up the build a bit.
Also fix code that implicitly relied on headers included by <linux/cgroup-defs.h>.
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
include/linux/sched.h | 1 -
include/target/target_core_base.h | 1 +
2 files changed, 1 insertion(+), 1 deletion(-)
diff --git a/include/linux/sched.h b/include/linux/sched.h
index 00039e0e63a4..d3cf8bc4e903 100644
--- a/include/linux/sched.h
+++ b/include/linux/sched.h
@@ -51,7 +51,6 @@
#include <linux/uidgid.h>
#include <linux/gfp.h>
#include <linux/magic.h>
-#include <linux/cgroup-defs.h>
#include <asm/processor.h>
diff --git a/include/target/target_core_base.h b/include/target/target_core_base.h
index 43edf82e54ff..9cc20d60138b 100644
--- a/include/target/target_core_base.h
+++ b/include/target/target_core_base.h
@@ -4,6 +4,7 @@
#include <linux/configfs.h> /* struct config_group */
#include <linux/dma-direction.h> /* enum dma_data_direction */
#include <linux/percpu_ida.h> /* struct percpu_ida */
+#include <linux/percpu-refcount.h>
#include <linux/semaphore.h> /* struct semaphore */
#define TARGET_CORE_VERSION "v5.0"
--
2.7.4
^ permalink raw reply related [flat|nested] 119+ messages in thread
* [PATCH 27/89] sched/headers: Move 'struct pacct_struct' and 'struct cpu_itimer' form <linux/sched.h> to <linux/sched/signal.h>
2017-02-06 13:28 [PATCH 00/89] Major reorganization of <linux/sched.h> Ingo Molnar
` (25 preceding siblings ...)
2017-02-06 13:28 ` [PATCH 26/89] sched/headers: Remove unused <linux/cgroup-defs.h> include from <linux/sched.h> Ingo Molnar
@ 2017-02-06 13:28 ` Ingo Molnar
2017-02-06 13:28 ` [PATCH 28/89] sched/cpufreq: Move the cpufreq interface to <linux/sched/cpufreq.h> Ingo Molnar
` (63 subsequent siblings)
90 siblings, 0 replies; 119+ messages in thread
From: Ingo Molnar @ 2017-02-06 13:28 UTC (permalink / raw)
To: linux-kernel
Cc: Andrew Morton, Linus Torvalds, Mike Galbraith, Oleg Nesterov,
Peter Zijlstra, Thomas Gleixner
These structures are actually part of 'struct signal', so move them to <linux/sched/signal.h>
where they belong.
This further decreases the size and complexity of <linux/sched.h>.
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
include/linux/sched.h | 13 -------------
include/linux/sched/signal.h | 16 ++++++++++++++++
2 files changed, 16 insertions(+), 13 deletions(-)
diff --git a/include/linux/sched.h b/include/linux/sched.h
index d3cf8bc4e903..c2345cf5feee 100644
--- a/include/linux/sched.h
+++ b/include/linux/sched.h
@@ -328,19 +328,6 @@ arch_get_unmapped_area_topdown(struct file *filp, unsigned long addr,
static inline void arch_pick_mmap_layout(struct mm_struct *mm) {}
#endif
-struct pacct_struct {
- int ac_flag;
- long ac_exitcode;
- unsigned long ac_mem;
- u64 ac_utime, ac_stime;
- unsigned long ac_minflt, ac_majflt;
-};
-
-struct cpu_itimer {
- u64 expires;
- u64 incr;
-};
-
/**
* struct prev_cputime - snaphsot of system and user cputime
* @utime: time spent in user mode
diff --git a/include/linux/sched/signal.h b/include/linux/sched/signal.h
index 613d9f9b3fe5..c19a6216a785 100644
--- a/include/linux/sched/signal.h
+++ b/include/linux/sched/signal.h
@@ -15,6 +15,22 @@ struct sighand_struct {
};
/*
+ * Per-process accounting stats:
+ */
+struct pacct_struct {
+ int ac_flag;
+ long ac_exitcode;
+ unsigned long ac_mem;
+ u64 ac_utime, ac_stime;
+ unsigned long ac_minflt, ac_majflt;
+};
+
+struct cpu_itimer {
+ u64 expires;
+ u64 incr;
+};
+
+/*
* NOTE! "signal_struct" does not have its own
* locking, because a shared signal_struct always
* implies a shared sighand_struct, so locking
--
2.7.4
^ permalink raw reply related [flat|nested] 119+ messages in thread
* [PATCH 28/89] sched/cpufreq: Move the cpufreq interface to <linux/sched/cpufreq.h>
2017-02-06 13:28 [PATCH 00/89] Major reorganization of <linux/sched.h> Ingo Molnar
` (26 preceding siblings ...)
2017-02-06 13:28 ` [PATCH 27/89] sched/headers: Move 'struct pacct_struct' and 'struct cpu_itimer' form <linux/sched.h> to <linux/sched/signal.h> Ingo Molnar
@ 2017-02-06 13:28 ` Ingo Molnar
2017-02-06 13:28 ` [PATCH 29/89] sched/headers: Move more mm_struct related functionality from <linux/sched.h> to <linux/sched/mm.h> Ingo Molnar
` (62 subsequent siblings)
90 siblings, 0 replies; 119+ messages in thread
From: Ingo Molnar @ 2017-02-06 13:28 UTC (permalink / raw)
To: linux-kernel
Cc: Andrew Morton, Linus Torvalds, Mike Galbraith, Oleg Nesterov,
Peter Zijlstra, Thomas Gleixner
No need to have this in the generic <linux/sched.h> header.
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
drivers/cpufreq/cpufreq_governor.c | 1 -
drivers/cpufreq/cpufreq_governor.h | 1 +
drivers/cpufreq/cpufreq_ondemand.c | 1 +
drivers/cpufreq/intel_pstate.c | 2 +-
include/linux/sched.h | 17 -----------------
include/linux/sched/cpufreq.h | 25 +++++++++++++++++++++++++
kernel/sched/sched.h | 1 +
7 files changed, 29 insertions(+), 19 deletions(-)
diff --git a/drivers/cpufreq/cpufreq_governor.c b/drivers/cpufreq/cpufreq_governor.c
index 631bd2c86c5e..47e24b5384b3 100644
--- a/drivers/cpufreq/cpufreq_governor.c
+++ b/drivers/cpufreq/cpufreq_governor.c
@@ -18,7 +18,6 @@
#include <linux/export.h>
#include <linux/kernel_stat.h>
-#include <linux/sched.h>
#include <linux/slab.h>
#include "cpufreq_governor.h"
diff --git a/drivers/cpufreq/cpufreq_governor.h b/drivers/cpufreq/cpufreq_governor.h
index f5717ca070cc..0236ec2cd654 100644
--- a/drivers/cpufreq/cpufreq_governor.h
+++ b/drivers/cpufreq/cpufreq_governor.h
@@ -20,6 +20,7 @@
#include <linux/atomic.h>
#include <linux/irq_work.h>
#include <linux/cpufreq.h>
+#include <linux/sched/cpufreq.h>
#include <linux/kernel_stat.h>
#include <linux/module.h>
#include <linux/mutex.h>
diff --git a/drivers/cpufreq/cpufreq_ondemand.c b/drivers/cpufreq/cpufreq_ondemand.c
index 4a017e895296..3937acf7e026 100644
--- a/drivers/cpufreq/cpufreq_ondemand.c
+++ b/drivers/cpufreq/cpufreq_ondemand.c
@@ -16,6 +16,7 @@
#include <linux/percpu-defs.h>
#include <linux/slab.h>
#include <linux/tick.h>
+#include <linux/sched/cpufreq.h>
#include "cpufreq_ondemand.h"
diff --git a/drivers/cpufreq/intel_pstate.c b/drivers/cpufreq/intel_pstate.c
index a54d65aa776d..097a9d9aa69f 100644
--- a/drivers/cpufreq/intel_pstate.c
+++ b/drivers/cpufreq/intel_pstate.c
@@ -19,7 +19,7 @@
#include <linux/hrtimer.h>
#include <linux/tick.h>
#include <linux/slab.h>
-#include <linux/sched.h>
+#include <linux/sched/cpufreq.h>
#include <linux/list.h>
#include <linux/cpu.h>
#include <linux/cpufreq.h>
diff --git a/include/linux/sched.h b/include/linux/sched.h
index c2345cf5feee..51d3e10526b7 100644
--- a/include/linux/sched.h
+++ b/include/linux/sched.h
@@ -2297,21 +2297,4 @@ static inline void mm_update_next_owner(struct mm_struct *mm)
}
#endif /* CONFIG_MEMCG */
-#define SCHED_CPUFREQ_RT (1U << 0)
-#define SCHED_CPUFREQ_DL (1U << 1)
-#define SCHED_CPUFREQ_IOWAIT (1U << 2)
-
-#define SCHED_CPUFREQ_RT_DL (SCHED_CPUFREQ_RT | SCHED_CPUFREQ_DL)
-
-#ifdef CONFIG_CPU_FREQ
-struct update_util_data {
- void (*func)(struct update_util_data *data, u64 time, unsigned int flags);
-};
-
-void cpufreq_add_update_util_hook(int cpu, struct update_util_data *data,
- void (*func)(struct update_util_data *data, u64 time,
- unsigned int flags));
-void cpufreq_remove_update_util_hook(int cpu);
-#endif /* CONFIG_CPU_FREQ */
-
#endif
diff --git a/include/linux/sched/cpufreq.h b/include/linux/sched/cpufreq.h
new file mode 100644
index 000000000000..9b846476d812
--- /dev/null
+++ b/include/linux/sched/cpufreq.h
@@ -0,0 +1,25 @@
+#ifndef _LINUX_SCHED_CPUFREQ_H
+#define _LINUX_SCHED_CPUFREQ_H
+
+/*
+ * Interface between cpufreq drivers and the scheduler:
+ */
+
+#define SCHED_CPUFREQ_RT (1U << 0)
+#define SCHED_CPUFREQ_DL (1U << 1)
+#define SCHED_CPUFREQ_IOWAIT (1U << 2)
+
+#define SCHED_CPUFREQ_RT_DL (SCHED_CPUFREQ_RT | SCHED_CPUFREQ_DL)
+
+#ifdef CONFIG_CPU_FREQ
+struct update_util_data {
+ void (*func)(struct update_util_data *data, u64 time, unsigned int flags);
+};
+
+void cpufreq_add_update_util_hook(int cpu, struct update_util_data *data,
+ void (*func)(struct update_util_data *data, u64 time,
+ unsigned int flags));
+void cpufreq_remove_update_util_hook(int cpu);
+#endif /* CONFIG_CPU_FREQ */
+
+#endif /* _LINUX_SCHED_CPUFREQ_H */
diff --git a/kernel/sched/sched.h b/kernel/sched/sched.h
index 641249471952..7dfeb14fa43c 100644
--- a/kernel/sched/sched.h
+++ b/kernel/sched/sched.h
@@ -7,6 +7,7 @@
#include <linux/sched/wake_q.h>
#include <linux/sched/signal.h>
#include <linux/sched/mm.h>
+#include <linux/sched/cpufreq.h>
#include <linux/u64_stats_sync.h>
#include <linux/sched/deadline.h>
#include <linux/kernel_stat.h>
--
2.7.4
^ permalink raw reply related [flat|nested] 119+ messages in thread
* [PATCH 29/89] sched/headers: Move more mm_struct related functionality from <linux/sched.h> to <linux/sched/mm.h>
2017-02-06 13:28 [PATCH 00/89] Major reorganization of <linux/sched.h> Ingo Molnar
` (27 preceding siblings ...)
2017-02-06 13:28 ` [PATCH 28/89] sched/cpufreq: Move the cpufreq interface to <linux/sched/cpufreq.h> Ingo Molnar
@ 2017-02-06 13:28 ` Ingo Molnar
2017-02-06 13:28 ` [PATCH 30/89] sched/headers: Move the 'init_mm' declaration from <linux/sched.h> to <linux/mm_types.h> Ingo Molnar
` (61 subsequent siblings)
90 siblings, 0 replies; 119+ messages in thread
From: Ingo Molnar @ 2017-02-06 13:28 UTC (permalink / raw)
To: linux-kernel
Cc: Andrew Morton, Linus Torvalds, Mike Galbraith, Oleg Nesterov,
Peter Zijlstra, Thomas Gleixner
Neither the mmap_layout nor the mm_update_next_owner() methods need to be
in <linux/sched.h> - move them to the more appropriate <linux/sched/mm.h> header.
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
arch/alpha/kernel/osf_sys.c | 1 +
arch/arc/mm/mmap.c | 3 ++-
arch/arm/mm/mmap.c | 1 +
arch/arm64/mm/mmap.c | 1 +
arch/frv/mm/elf-fdpic.c | 1 +
arch/ia64/kernel/sys_ia64.c | 1 +
arch/mips/mm/mmap.c | 1 +
arch/parisc/kernel/cache.c | 1 +
arch/parisc/kernel/sys_parisc.c | 1 +
arch/parisc/mm/hugetlbpage.c | 1 +
arch/powerpc/mm/mmap.c | 1 +
arch/s390/mm/mmap.c | 1 +
arch/sh/mm/mmap.c | 1 +
arch/sparc/kernel/sys_sparc_32.c | 1 +
arch/sparc/kernel/sys_sparc_64.c | 1 +
arch/sparc/mm/hugetlbpage.c | 1 +
arch/tile/mm/hugetlbpage.c | 1 +
arch/tile/mm/mmap.c | 1 +
arch/x86/kernel/sys_x86_64.c | 1 +
arch/x86/mm/hugetlbpage.c | 1 +
arch/x86/mm/mmap.c | 1 +
arch/xtensa/kernel/syscall.c | 1 +
include/linux/sched.h | 21 ---------------------
include/linux/sched/mm.h | 21 +++++++++++++++++++++
24 files changed, 44 insertions(+), 22 deletions(-)
diff --git a/arch/alpha/kernel/osf_sys.c b/arch/alpha/kernel/osf_sys.c
index 568ca29f2ad9..3b9b2a382ba2 100644
--- a/arch/alpha/kernel/osf_sys.c
+++ b/arch/alpha/kernel/osf_sys.c
@@ -12,6 +12,7 @@
#include <linux/errno.h>
#include <linux/sched/signal.h>
+#include <linux/sched/mm.h>
#include <linux/kernel.h>
#include <linux/mm.h>
#include <linux/smp.h>
diff --git a/arch/arc/mm/mmap.c b/arch/arc/mm/mmap.c
index 2e06d56e987b..3e25e8d6486b 100644
--- a/arch/arc/mm/mmap.c
+++ b/arch/arc/mm/mmap.c
@@ -13,7 +13,8 @@
#include <linux/fs.h>
#include <linux/mm.h>
#include <linux/mman.h>
-#include <linux/sched.h>
+#include <linux/sched/mm.h>
+
#include <asm/cacheflush.h>
#define COLOUR_ALIGN(addr, pgoff) \
diff --git a/arch/arm/mm/mmap.c b/arch/arm/mm/mmap.c
index d448f9cd7715..2239fde10b80 100644
--- a/arch/arm/mm/mmap.c
+++ b/arch/arm/mm/mmap.c
@@ -6,6 +6,7 @@
#include <linux/mman.h>
#include <linux/shm.h>
#include <linux/sched/signal.h>
+#include <linux/sched/mm.h>
#include <linux/io.h>
#include <linux/personality.h>
#include <linux/random.h>
diff --git a/arch/arm64/mm/mmap.c b/arch/arm64/mm/mmap.c
index 1e0a2650c88b..7b0d55756eb1 100644
--- a/arch/arm64/mm/mmap.c
+++ b/arch/arm64/mm/mmap.c
@@ -23,6 +23,7 @@
#include <linux/export.h>
#include <linux/shm.h>
#include <linux/sched/signal.h>
+#include <linux/sched/mm.h>
#include <linux/io.h>
#include <linux/personality.h>
#include <linux/random.h>
diff --git a/arch/frv/mm/elf-fdpic.c b/arch/frv/mm/elf-fdpic.c
index 836f14707a62..da82c25301e7 100644
--- a/arch/frv/mm/elf-fdpic.c
+++ b/arch/frv/mm/elf-fdpic.c
@@ -10,6 +10,7 @@
*/
#include <linux/sched.h>
+#include <linux/sched/mm.h>
#include <linux/mm.h>
#include <linux/fs.h>
#include <linux/elf-fdpic.h>
diff --git a/arch/ia64/kernel/sys_ia64.c b/arch/ia64/kernel/sys_ia64.c
index a09c12230bc5..ce4cc60d519b 100644
--- a/arch/ia64/kernel/sys_ia64.c
+++ b/arch/ia64/kernel/sys_ia64.c
@@ -10,6 +10,7 @@
#include <linux/mm.h>
#include <linux/mman.h>
#include <linux/sched.h>
+#include <linux/sched/mm.h>
#include <linux/shm.h>
#include <linux/file.h> /* doh, must come after sched.h... */
#include <linux/smp.h>
diff --git a/arch/mips/mm/mmap.c b/arch/mips/mm/mmap.c
index 1462b0b1807a..29e9ac80ac2e 100644
--- a/arch/mips/mm/mmap.c
+++ b/arch/mips/mm/mmap.c
@@ -14,6 +14,7 @@
#include <linux/personality.h>
#include <linux/random.h>
#include <linux/sched/signal.h>
+#include <linux/sched/mm.h>
unsigned long shm_align_mask = PAGE_SIZE - 1; /* Sane caches */
EXPORT_SYMBOL(shm_align_mask);
diff --git a/arch/parisc/kernel/cache.c b/arch/parisc/kernel/cache.c
index 977f0a4f5ecf..7820b864de1a 100644
--- a/arch/parisc/kernel/cache.c
+++ b/arch/parisc/kernel/cache.c
@@ -18,6 +18,7 @@
#include <linux/seq_file.h>
#include <linux/pagemap.h>
#include <linux/sched.h>
+#include <linux/sched/mm.h>
#include <asm/pdc.h>
#include <asm/cache.h>
#include <asm/cacheflush.h>
diff --git a/arch/parisc/kernel/sys_parisc.c b/arch/parisc/kernel/sys_parisc.c
index ce07cd3f2507..e5288638a1d9 100644
--- a/arch/parisc/kernel/sys_parisc.c
+++ b/arch/parisc/kernel/sys_parisc.c
@@ -31,6 +31,7 @@
#include <linux/mm.h>
#include <linux/mman.h>
#include <linux/sched/signal.h>
+#include <linux/sched/mm.h>
#include <linux/shm.h>
#include <linux/syscalls.h>
#include <linux/utsname.h>
diff --git a/arch/parisc/mm/hugetlbpage.c b/arch/parisc/mm/hugetlbpage.c
index 5d6eea925cf4..aa50ac090e9b 100644
--- a/arch/parisc/mm/hugetlbpage.c
+++ b/arch/parisc/mm/hugetlbpage.c
@@ -8,6 +8,7 @@
#include <linux/fs.h>
#include <linux/mm.h>
+#include <linux/sched/mm.h>
#include <linux/hugetlb.h>
#include <linux/pagemap.h>
#include <linux/sysctl.h>
diff --git a/arch/powerpc/mm/mmap.c b/arch/powerpc/mm/mmap.c
index 8013861aeaa7..a5d9ef59debe 100644
--- a/arch/powerpc/mm/mmap.c
+++ b/arch/powerpc/mm/mmap.c
@@ -26,6 +26,7 @@
#include <linux/mm.h>
#include <linux/random.h>
#include <linux/sched/signal.h>
+#include <linux/sched/mm.h>
#include <linux/elf-randomize.h>
#include <linux/security.h>
#include <linux/mman.h>
diff --git a/arch/s390/mm/mmap.c b/arch/s390/mm/mmap.c
index 40c1587169ec..916b78a10059 100644
--- a/arch/s390/mm/mmap.c
+++ b/arch/s390/mm/mmap.c
@@ -27,6 +27,7 @@
#include <linux/mm.h>
#include <linux/mman.h>
#include <linux/sched/signal.h>
+#include <linux/sched/mm.h>
#include <linux/module.h>
#include <linux/random.h>
#include <linux/compat.h>
diff --git a/arch/sh/mm/mmap.c b/arch/sh/mm/mmap.c
index 6777177807c2..08e7af0be4a7 100644
--- a/arch/sh/mm/mmap.c
+++ b/arch/sh/mm/mmap.c
@@ -9,6 +9,7 @@
*/
#include <linux/io.h>
#include <linux/mm.h>
+#include <linux/sched/mm.h>
#include <linux/mman.h>
#include <linux/module.h>
#include <asm/page.h>
diff --git a/arch/sparc/kernel/sys_sparc_32.c b/arch/sparc/kernel/sys_sparc_32.c
index ae49639a484e..ff3573059936 100644
--- a/arch/sparc/kernel/sys_sparc_32.c
+++ b/arch/sparc/kernel/sys_sparc_32.c
@@ -8,6 +8,7 @@
#include <linux/errno.h>
#include <linux/types.h>
#include <linux/sched/signal.h>
+#include <linux/sched/mm.h>
#include <linux/mm.h>
#include <linux/fs.h>
#include <linux/file.h>
diff --git a/arch/sparc/kernel/sys_sparc_64.c b/arch/sparc/kernel/sys_sparc_64.c
index 54d3999d8119..c521ee277083 100644
--- a/arch/sparc/kernel/sys_sparc_64.c
+++ b/arch/sparc/kernel/sys_sparc_64.c
@@ -8,6 +8,7 @@
#include <linux/errno.h>
#include <linux/types.h>
#include <linux/sched/signal.h>
+#include <linux/sched/mm.h>
#include <linux/fs.h>
#include <linux/file.h>
#include <linux/mm.h>
diff --git a/arch/sparc/mm/hugetlbpage.c b/arch/sparc/mm/hugetlbpage.c
index 988acc8b1b80..78593b4496e9 100644
--- a/arch/sparc/mm/hugetlbpage.c
+++ b/arch/sparc/mm/hugetlbpage.c
@@ -6,6 +6,7 @@
#include <linux/fs.h>
#include <linux/mm.h>
+#include <linux/sched/mm.h>
#include <linux/hugetlb.h>
#include <linux/pagemap.h>
#include <linux/sysctl.h>
diff --git a/arch/tile/mm/hugetlbpage.c b/arch/tile/mm/hugetlbpage.c
index 77ceaa343fce..cb10153b5c9f 100644
--- a/arch/tile/mm/hugetlbpage.c
+++ b/arch/tile/mm/hugetlbpage.c
@@ -19,6 +19,7 @@
#include <linux/init.h>
#include <linux/fs.h>
#include <linux/mm.h>
+#include <linux/sched/mm.h>
#include <linux/hugetlb.h>
#include <linux/pagemap.h>
#include <linux/slab.h>
diff --git a/arch/tile/mm/mmap.c b/arch/tile/mm/mmap.c
index 377e312dc27e..8ab28167c44b 100644
--- a/arch/tile/mm/mmap.c
+++ b/arch/tile/mm/mmap.c
@@ -18,6 +18,7 @@
#include <linux/random.h>
#include <linux/limits.h>
#include <linux/sched/signal.h>
+#include <linux/sched/mm.h>
#include <linux/mman.h>
#include <linux/compat.h>
diff --git a/arch/x86/kernel/sys_x86_64.c b/arch/x86/kernel/sys_x86_64.c
index a55ed63b9f91..50215a4b9347 100644
--- a/arch/x86/kernel/sys_x86_64.c
+++ b/arch/x86/kernel/sys_x86_64.c
@@ -1,5 +1,6 @@
#include <linux/errno.h>
#include <linux/sched.h>
+#include <linux/sched/mm.h>
#include <linux/syscalls.h>
#include <linux/mm.h>
#include <linux/fs.h>
diff --git a/arch/x86/mm/hugetlbpage.c b/arch/x86/mm/hugetlbpage.c
index 2ae8584b44c7..c5066a260803 100644
--- a/arch/x86/mm/hugetlbpage.c
+++ b/arch/x86/mm/hugetlbpage.c
@@ -7,6 +7,7 @@
#include <linux/init.h>
#include <linux/fs.h>
#include <linux/mm.h>
+#include <linux/sched/mm.h>
#include <linux/hugetlb.h>
#include <linux/pagemap.h>
#include <linux/err.h>
diff --git a/arch/x86/mm/mmap.c b/arch/x86/mm/mmap.c
index 5eabf34008f1..7940166c799b 100644
--- a/arch/x86/mm/mmap.c
+++ b/arch/x86/mm/mmap.c
@@ -29,6 +29,7 @@
#include <linux/random.h>
#include <linux/limits.h>
#include <linux/sched/signal.h>
+#include <linux/sched/mm.h>
#include <asm/elf.h>
struct va_alignment __read_mostly va_align = {
diff --git a/arch/xtensa/kernel/syscall.c b/arch/xtensa/kernel/syscall.c
index d3fd100dffc9..06937928cb72 100644
--- a/arch/xtensa/kernel/syscall.c
+++ b/arch/xtensa/kernel/syscall.c
@@ -25,6 +25,7 @@
#include <linux/file.h>
#include <linux/fs.h>
#include <linux/mman.h>
+#include <linux/sched/mm.h>
#include <linux/shm.h>
typedef void (*syscall_t)(void);
diff --git a/include/linux/sched.h b/include/linux/sched.h
index 51d3e10526b7..91a2d8739a88 100644
--- a/include/linux/sched.h
+++ b/include/linux/sched.h
@@ -315,19 +315,6 @@ void __noreturn do_task_dead(void);
struct nsproxy;
-#ifdef CONFIG_MMU
-extern void arch_pick_mmap_layout(struct mm_struct *mm);
-extern unsigned long
-arch_get_unmapped_area(struct file *, unsigned long, unsigned long,
- unsigned long, unsigned long);
-extern unsigned long
-arch_get_unmapped_area_topdown(struct file *filp, unsigned long addr,
- unsigned long len, unsigned long pgoff,
- unsigned long flags);
-#else
-static inline void arch_pick_mmap_layout(struct mm_struct *mm) {}
-#endif
-
/**
* struct prev_cputime - snaphsot of system and user cputime
* @utime: time spent in user mode
@@ -2289,12 +2276,4 @@ static inline void inc_syscw(struct task_struct *tsk)
#define TASK_SIZE_OF(tsk) TASK_SIZE
#endif
-#ifdef CONFIG_MEMCG
-extern void mm_update_next_owner(struct mm_struct *mm);
-#else
-static inline void mm_update_next_owner(struct mm_struct *mm)
-{
-}
-#endif /* CONFIG_MEMCG */
-
#endif
diff --git a/include/linux/sched/mm.h b/include/linux/sched/mm.h
index e3a8f6ca4479..0aff84e1098a 100644
--- a/include/linux/sched/mm.h
+++ b/include/linux/sched/mm.h
@@ -56,4 +56,25 @@ extern struct mm_struct *mm_access(struct task_struct *task, unsigned int mode);
/* Remove the current tasks stale references to the old mm_struct */
extern void mm_release(struct task_struct *, struct mm_struct *);
+#ifdef CONFIG_MEMCG
+extern void mm_update_next_owner(struct mm_struct *mm);
+#else
+static inline void mm_update_next_owner(struct mm_struct *mm)
+{
+}
+#endif /* CONFIG_MEMCG */
+
+#ifdef CONFIG_MMU
+extern void arch_pick_mmap_layout(struct mm_struct *mm);
+extern unsigned long
+arch_get_unmapped_area(struct file *, unsigned long, unsigned long,
+ unsigned long, unsigned long);
+extern unsigned long
+arch_get_unmapped_area_topdown(struct file *filp, unsigned long addr,
+ unsigned long len, unsigned long pgoff,
+ unsigned long flags);
+#else
+static inline void arch_pick_mmap_layout(struct mm_struct *mm) {}
+#endif
+
#endif /* _LINUX_SCHED_MM_H */
--
2.7.4
^ permalink raw reply related [flat|nested] 119+ messages in thread
* [PATCH 30/89] sched/headers: Move the 'init_mm' declaration from <linux/sched.h> to <linux/mm_types.h>
2017-02-06 13:28 [PATCH 00/89] Major reorganization of <linux/sched.h> Ingo Molnar
` (28 preceding siblings ...)
2017-02-06 13:28 ` [PATCH 29/89] sched/headers: Move more mm_struct related functionality from <linux/sched.h> to <linux/sched/mm.h> Ingo Molnar
@ 2017-02-06 13:28 ` Ingo Molnar
2017-02-06 13:28 ` [PATCH 31/89] sched/headers: Move in_vfork() from <linux/sched.h> to <linux/sched/mm.h> Ingo Molnar
` (60 subsequent siblings)
90 siblings, 0 replies; 119+ messages in thread
From: Ingo Molnar @ 2017-02-06 13:28 UTC (permalink / raw)
To: linux-kernel
Cc: Andrew Morton, Linus Torvalds, Mike Galbraith, Oleg Nesterov,
Peter Zijlstra, Thomas Gleixner
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
include/linux/mm_types.h | 2 ++
include/linux/sched.h | 2 --
2 files changed, 2 insertions(+), 2 deletions(-)
diff --git a/include/linux/mm_types.h b/include/linux/mm_types.h
index 808751d7b737..c2bb860d2d2e 100644
--- a/include/linux/mm_types.h
+++ b/include/linux/mm_types.h
@@ -515,6 +515,8 @@ struct mm_struct {
struct work_struct async_put_work;
};
+extern struct mm_struct init_mm;
+
static inline void mm_init_cpumask(struct mm_struct *mm)
{
#ifdef CONFIG_CPUMASK_OFFSTACK
diff --git a/include/linux/sched.h b/include/linux/sched.h
index 91a2d8739a88..90093b656b46 100644
--- a/include/linux/sched.h
+++ b/include/linux/sched.h
@@ -1785,8 +1785,6 @@ static inline int kstack_end(void *addr)
extern union thread_union init_thread_union;
extern struct task_struct init_task;
-extern struct mm_struct init_mm;
-
extern struct pid_namespace init_pid_ns;
/*
--
2.7.4
^ permalink raw reply related [flat|nested] 119+ messages in thread
* [PATCH 31/89] sched/headers: Move in_vfork() from <linux/sched.h> to <linux/sched/mm.h>
2017-02-06 13:28 [PATCH 00/89] Major reorganization of <linux/sched.h> Ingo Molnar
` (29 preceding siblings ...)
2017-02-06 13:28 ` [PATCH 30/89] sched/headers: Move the 'init_mm' declaration from <linux/sched.h> to <linux/mm_types.h> Ingo Molnar
@ 2017-02-06 13:28 ` Ingo Molnar
2017-02-06 13:28 ` [PATCH 32/89] sched/numa: Split <linux/sched/numa_balancing.h> out of <linux/sched.h> Ingo Molnar
` (59 subsequent siblings)
90 siblings, 0 replies; 119+ messages in thread
From: Ingo Molnar @ 2017-02-06 13:28 UTC (permalink / raw)
To: linux-kernel
Cc: Andrew Morton, Linus Torvalds, Mike Galbraith, Oleg Nesterov,
Peter Zijlstra, Thomas Gleixner
The in_vfork() function deals with task->mm, so it better belongs
into <linux/sched/mm.h>.
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
include/linux/sched.h | 26 --------------------------
include/linux/sched/mm.h | 27 +++++++++++++++++++++++++++
2 files changed, 27 insertions(+), 26 deletions(-)
diff --git a/include/linux/sched.h b/include/linux/sched.h
index 90093b656b46..f7aea422b9cf 100644
--- a/include/linux/sched.h
+++ b/include/linux/sched.h
@@ -1245,32 +1245,6 @@ static inline int tsk_nr_cpus_allowed(struct task_struct *p)
#define TNF_FAULT_LOCAL 0x08
#define TNF_MIGRATE_FAIL 0x10
-static inline bool in_vfork(struct task_struct *tsk)
-{
- bool ret;
-
- /*
- * need RCU to access ->real_parent if CLONE_VM was used along with
- * CLONE_PARENT.
- *
- * We check real_parent->mm == tsk->mm because CLONE_VFORK does not
- * imply CLONE_VM
- *
- * CLONE_VFORK can be used with CLONE_PARENT/CLONE_THREAD and thus
- * ->real_parent is not necessarily the task doing vfork(), so in
- * theory we can't rely on task_lock() if we want to dereference it.
- *
- * And in this case we can't trust the real_parent->mm == tsk->mm
- * check, it can be false negative. But we do not care, if init or
- * another oom-unkillable task does this it should blame itself.
- */
- rcu_read_lock();
- ret = tsk->vfork_done && tsk->real_parent->mm == tsk->mm;
- rcu_read_unlock();
-
- return ret;
-}
-
#ifdef CONFIG_NUMA_BALANCING
extern void task_numa_fault(int last_node, int node, int pages, int flags);
extern pid_t task_numa_group_id(struct task_struct *p);
diff --git a/include/linux/sched/mm.h b/include/linux/sched/mm.h
index 0aff84e1098a..6eb9677b88bf 100644
--- a/include/linux/sched/mm.h
+++ b/include/linux/sched/mm.h
@@ -3,6 +3,7 @@
#include <linux/kernel.h>
#include <linux/atomic.h>
+#include <linux/sched.h>
/*
* Routines for handling mm_structs
@@ -77,4 +78,30 @@ arch_get_unmapped_area_topdown(struct file *filp, unsigned long addr,
static inline void arch_pick_mmap_layout(struct mm_struct *mm) {}
#endif
+static inline bool in_vfork(struct task_struct *tsk)
+{
+ bool ret;
+
+ /*
+ * need RCU to access ->real_parent if CLONE_VM was used along with
+ * CLONE_PARENT.
+ *
+ * We check real_parent->mm == tsk->mm because CLONE_VFORK does not
+ * imply CLONE_VM
+ *
+ * CLONE_VFORK can be used with CLONE_PARENT/CLONE_THREAD and thus
+ * ->real_parent is not necessarily the task doing vfork(), so in
+ * theory we can't rely on task_lock() if we want to dereference it.
+ *
+ * And in this case we can't trust the real_parent->mm == tsk->mm
+ * check, it can be false negative. But we do not care, if init or
+ * another oom-unkillable task does this it should blame itself.
+ */
+ rcu_read_lock();
+ ret = tsk->vfork_done && tsk->real_parent->mm == tsk->mm;
+ rcu_read_unlock();
+
+ return ret;
+}
+
#endif /* _LINUX_SCHED_MM_H */
--
2.7.4
^ permalink raw reply related [flat|nested] 119+ messages in thread
* [PATCH 32/89] sched/numa: Split <linux/sched/numa_balancing.h> out of <linux/sched.h>
2017-02-06 13:28 [PATCH 00/89] Major reorganization of <linux/sched.h> Ingo Molnar
` (30 preceding siblings ...)
2017-02-06 13:28 ` [PATCH 31/89] sched/headers: Move in_vfork() from <linux/sched.h> to <linux/sched/mm.h> Ingo Molnar
@ 2017-02-06 13:28 ` Ingo Molnar
2017-02-06 13:28 ` [PATCH 33/89] sched/headers: Move the JOBCTL_ defines and methods from <linux/sched.h> to <linux/sched/jobctl.h> Ingo Molnar
` (58 subsequent siblings)
90 siblings, 0 replies; 119+ messages in thread
From: Ingo Molnar @ 2017-02-06 13:28 UTC (permalink / raw)
To: linux-kernel
Cc: Andrew Morton, Linus Torvalds, Mike Galbraith, Oleg Nesterov,
Peter Zijlstra, Thomas Gleixner
Split out the interface between the scheduler and the MM which
deals with page fault driven NUMA balancing, into the new
<linux/sched/numa_balancing.h> header.
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
fs/exec.c | 1 +
fs/proc/array.c | 1 +
include/linux/sched.h | 35 -----------------------------------
include/linux/sched/numa_balancing.h | 46 ++++++++++++++++++++++++++++++++++++++++++++++
include/trace/events/sched.h | 2 +-
kernel/fork.c | 1 +
kernel/sched/sched.h | 1 +
mm/huge_memory.c | 1 +
mm/memory.c | 1 +
mm/mempolicy.c | 1 +
10 files changed, 54 insertions(+), 36 deletions(-)
diff --git a/fs/exec.c b/fs/exec.c
index 2a24d7d435ba..e3d16ee36223 100644
--- a/fs/exec.c
+++ b/fs/exec.c
@@ -35,6 +35,7 @@
#include <linux/sched/mm.h>
#include <linux/sched/coredump.h>
#include <linux/sched/signal.h>
+#include <linux/sched/numa_balancing.h>
#include <linux/pagemap.h>
#include <linux/perf_event.h>
#include <linux/highmem.h>
diff --git a/fs/proc/array.c b/fs/proc/array.c
index 61bea3a4ecc5..cfe7f934a300 100644
--- a/fs/proc/array.c
+++ b/fs/proc/array.c
@@ -61,6 +61,7 @@
#include <linux/string.h>
#include <linux/mman.h>
#include <linux/sched/mm.h>
+#include <linux/sched/numa_balancing.h>
#include <linux/proc_fs.h>
#include <linux/ioport.h>
#include <linux/uaccess.h>
diff --git a/include/linux/sched.h b/include/linux/sched.h
index f7aea422b9cf..e63448cae4e4 100644
--- a/include/linux/sched.h
+++ b/include/linux/sched.h
@@ -1239,41 +1239,6 @@ static inline int tsk_nr_cpus_allowed(struct task_struct *p)
return p->nr_cpus_allowed;
}
-#define TNF_MIGRATED 0x01
-#define TNF_NO_GROUP 0x02
-#define TNF_SHARED 0x04
-#define TNF_FAULT_LOCAL 0x08
-#define TNF_MIGRATE_FAIL 0x10
-
-#ifdef CONFIG_NUMA_BALANCING
-extern void task_numa_fault(int last_node, int node, int pages, int flags);
-extern pid_t task_numa_group_id(struct task_struct *p);
-extern void set_numabalancing_state(bool enabled);
-extern void task_numa_free(struct task_struct *p);
-extern bool should_numa_migrate_memory(struct task_struct *p, struct page *page,
- int src_nid, int dst_cpu);
-#else
-static inline void task_numa_fault(int last_node, int node, int pages,
- int flags)
-{
-}
-static inline pid_t task_numa_group_id(struct task_struct *p)
-{
- return 0;
-}
-static inline void set_numabalancing_state(bool enabled)
-{
-}
-static inline void task_numa_free(struct task_struct *p)
-{
-}
-static inline bool should_numa_migrate_memory(struct task_struct *p,
- struct page *page, int src_nid, int dst_cpu)
-{
- return true;
-}
-#endif
-
static inline struct pid *task_pid(struct task_struct *task)
{
return task->pids[PIDTYPE_PID].pid;
diff --git a/include/linux/sched/numa_balancing.h b/include/linux/sched/numa_balancing.h
new file mode 100644
index 000000000000..35d5fc77b4be
--- /dev/null
+++ b/include/linux/sched/numa_balancing.h
@@ -0,0 +1,46 @@
+#ifndef _LINUX_SCHED_NUMA_BALANCING_H
+#define _LINUX_SCHED_NUMA_BALANCING_H
+
+/*
+ * This is the interface between the scheduler and the MM that
+ * implements memory access pattern based NUMA-balancing:
+ */
+
+#include <linux/sched.h>
+
+#define TNF_MIGRATED 0x01
+#define TNF_NO_GROUP 0x02
+#define TNF_SHARED 0x04
+#define TNF_FAULT_LOCAL 0x08
+#define TNF_MIGRATE_FAIL 0x10
+
+#ifdef CONFIG_NUMA_BALANCING
+extern void task_numa_fault(int last_node, int node, int pages, int flags);
+extern pid_t task_numa_group_id(struct task_struct *p);
+extern void set_numabalancing_state(bool enabled);
+extern void task_numa_free(struct task_struct *p);
+extern bool should_numa_migrate_memory(struct task_struct *p, struct page *page,
+ int src_nid, int dst_cpu);
+#else
+static inline void task_numa_fault(int last_node, int node, int pages,
+ int flags)
+{
+}
+static inline pid_t task_numa_group_id(struct task_struct *p)
+{
+ return 0;
+}
+static inline void set_numabalancing_state(bool enabled)
+{
+}
+static inline void task_numa_free(struct task_struct *p)
+{
+}
+static inline bool should_numa_migrate_memory(struct task_struct *p,
+ struct page *page, int src_nid, int dst_cpu)
+{
+ return true;
+}
+#endif
+
+#endif /* _LINUX_SCHED_NUMA_BALANCING_H */
diff --git a/include/trace/events/sched.h b/include/trace/events/sched.h
index 9b90c57517a9..9e3ef6c99e4b 100644
--- a/include/trace/events/sched.h
+++ b/include/trace/events/sched.h
@@ -4,7 +4,7 @@
#if !defined(_TRACE_SCHED_H) || defined(TRACE_HEADER_MULTI_READ)
#define _TRACE_SCHED_H
-#include <linux/sched.h>
+#include <linux/sched/numa_balancing.h>
#include <linux/tracepoint.h>
#include <linux/binfmts.h>
diff --git a/kernel/fork.c b/kernel/fork.c
index 9c577368b30d..f060b1c6a947 100644
--- a/kernel/fork.c
+++ b/kernel/fork.c
@@ -16,6 +16,7 @@
#include <linux/sched/mm.h>
#include <linux/sched/coredump.h>
#include <linux/sched/user.h>
+#include <linux/sched/numa_balancing.h>
#include <linux/init.h>
#include <linux/unistd.h>
#include <linux/module.h>
diff --git a/kernel/sched/sched.h b/kernel/sched/sched.h
index 7dfeb14fa43c..7e8ce0347fbf 100644
--- a/kernel/sched/sched.h
+++ b/kernel/sched/sched.h
@@ -6,6 +6,7 @@
#include <linux/sched/clock.h>
#include <linux/sched/wake_q.h>
#include <linux/sched/signal.h>
+#include <linux/sched/numa_balancing.h>
#include <linux/sched/mm.h>
#include <linux/sched/cpufreq.h>
#include <linux/u64_stats_sync.h>
diff --git a/mm/huge_memory.c b/mm/huge_memory.c
index 02c0287586e5..d600d3bf44fb 100644
--- a/mm/huge_memory.c
+++ b/mm/huge_memory.c
@@ -10,6 +10,7 @@
#include <linux/mm.h>
#include <linux/sched.h>
#include <linux/sched/coredump.h>
+#include <linux/sched/numa_balancing.h>
#include <linux/highmem.h>
#include <linux/hugetlb.h>
#include <linux/mmu_notifier.h>
diff --git a/mm/memory.c b/mm/memory.c
index 9967bd79c8a8..ac1f5b93e268 100644
--- a/mm/memory.c
+++ b/mm/memory.c
@@ -42,6 +42,7 @@
#include <linux/mm.h>
#include <linux/sched/mm.h>
#include <linux/sched/coredump.h>
+#include <linux/sched/numa_balancing.h>
#include <linux/hugetlb.h>
#include <linux/mman.h>
#include <linux/swap.h>
diff --git a/mm/mempolicy.c b/mm/mempolicy.c
index 90892416ed75..18e0105810df 100644
--- a/mm/mempolicy.c
+++ b/mm/mempolicy.c
@@ -74,6 +74,7 @@
#include <linux/kernel.h>
#include <linux/sched.h>
#include <linux/sched/mm.h>
+#include <linux/sched/numa_balancing.h>
#include <linux/nodemask.h>
#include <linux/cpuset.h>
#include <linux/slab.h>
--
2.7.4
^ permalink raw reply related [flat|nested] 119+ messages in thread
* [PATCH 33/89] sched/headers: Move the JOBCTL_ defines and methods from <linux/sched.h> to <linux/sched/jobctl.h>
2017-02-06 13:28 [PATCH 00/89] Major reorganization of <linux/sched.h> Ingo Molnar
` (31 preceding siblings ...)
2017-02-06 13:28 ` [PATCH 32/89] sched/numa: Split <linux/sched/numa_balancing.h> out of <linux/sched.h> Ingo Molnar
@ 2017-02-06 13:28 ` Ingo Molnar
2017-02-06 13:28 ` [PATCH 34/89] sched/core: Move <asm/paravirt.h> include to kernel/sched/sched.h Ingo Molnar
` (57 subsequent siblings)
90 siblings, 0 replies; 119+ messages in thread
From: Ingo Molnar @ 2017-02-06 13:28 UTC (permalink / raw)
To: linux-kernel
Cc: Andrew Morton, Linus Torvalds, Mike Galbraith, Oleg Nesterov,
Peter Zijlstra, Thomas Gleixner
Only a small fraction of sched.h users actually utilizes these defines,
and they are not scheduler functionality in any case, so move them
into their separate header.
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
include/linux/sched.h | 30 ------------------------------
include/linux/sched/jobctl.h | 32 ++++++++++++++++++++++++++++++++
include/linux/sched/signal.h | 1 +
3 files changed, 33 insertions(+), 30 deletions(-)
diff --git a/include/linux/sched.h b/include/linux/sched.h
index e63448cae4e4..4a35316f43dd 100644
--- a/include/linux/sched.h
+++ b/include/linux/sched.h
@@ -1552,36 +1552,6 @@ TASK_PFA_CLEAR(SPREAD_SLAB, spread_slab)
TASK_PFA_TEST(LMK_WAITING, lmk_waiting)
TASK_PFA_SET(LMK_WAITING, lmk_waiting)
-/*
- * task->jobctl flags
- */
-#define JOBCTL_STOP_SIGMASK 0xffff /* signr of the last group stop */
-
-#define JOBCTL_STOP_DEQUEUED_BIT 16 /* stop signal dequeued */
-#define JOBCTL_STOP_PENDING_BIT 17 /* task should stop for group stop */
-#define JOBCTL_STOP_CONSUME_BIT 18 /* consume group stop count */
-#define JOBCTL_TRAP_STOP_BIT 19 /* trap for STOP */
-#define JOBCTL_TRAP_NOTIFY_BIT 20 /* trap for NOTIFY */
-#define JOBCTL_TRAPPING_BIT 21 /* switching to TRACED */
-#define JOBCTL_LISTENING_BIT 22 /* ptracer is listening for events */
-
-#define JOBCTL_STOP_DEQUEUED (1UL << JOBCTL_STOP_DEQUEUED_BIT)
-#define JOBCTL_STOP_PENDING (1UL << JOBCTL_STOP_PENDING_BIT)
-#define JOBCTL_STOP_CONSUME (1UL << JOBCTL_STOP_CONSUME_BIT)
-#define JOBCTL_TRAP_STOP (1UL << JOBCTL_TRAP_STOP_BIT)
-#define JOBCTL_TRAP_NOTIFY (1UL << JOBCTL_TRAP_NOTIFY_BIT)
-#define JOBCTL_TRAPPING (1UL << JOBCTL_TRAPPING_BIT)
-#define JOBCTL_LISTENING (1UL << JOBCTL_LISTENING_BIT)
-
-#define JOBCTL_TRAP_MASK (JOBCTL_TRAP_STOP | JOBCTL_TRAP_NOTIFY)
-#define JOBCTL_PENDING_MASK (JOBCTL_STOP_PENDING | JOBCTL_TRAP_MASK)
-
-extern bool task_set_jobctl_pending(struct task_struct *task,
- unsigned long mask);
-extern void task_clear_jobctl_trapping(struct task_struct *task);
-extern void task_clear_jobctl_pending(struct task_struct *task,
- unsigned long mask);
-
static inline void rcu_copy_process(struct task_struct *p)
{
#ifdef CONFIG_PREEMPT_RCU
diff --git a/include/linux/sched/jobctl.h b/include/linux/sched/jobctl.h
new file mode 100644
index 000000000000..d8cbf44fe16b
--- /dev/null
+++ b/include/linux/sched/jobctl.h
@@ -0,0 +1,32 @@
+#ifndef _LINUX_SCHED_JOBCTL_H
+#define _LINUX_SCHED_JOBCTL_H
+
+/*
+ * task->jobctl flags
+ */
+#define JOBCTL_STOP_SIGMASK 0xffff /* signr of the last group stop */
+
+#define JOBCTL_STOP_DEQUEUED_BIT 16 /* stop signal dequeued */
+#define JOBCTL_STOP_PENDING_BIT 17 /* task should stop for group stop */
+#define JOBCTL_STOP_CONSUME_BIT 18 /* consume group stop count */
+#define JOBCTL_TRAP_STOP_BIT 19 /* trap for STOP */
+#define JOBCTL_TRAP_NOTIFY_BIT 20 /* trap for NOTIFY */
+#define JOBCTL_TRAPPING_BIT 21 /* switching to TRACED */
+#define JOBCTL_LISTENING_BIT 22 /* ptracer is listening for events */
+
+#define JOBCTL_STOP_DEQUEUED (1UL << JOBCTL_STOP_DEQUEUED_BIT)
+#define JOBCTL_STOP_PENDING (1UL << JOBCTL_STOP_PENDING_BIT)
+#define JOBCTL_STOP_CONSUME (1UL << JOBCTL_STOP_CONSUME_BIT)
+#define JOBCTL_TRAP_STOP (1UL << JOBCTL_TRAP_STOP_BIT)
+#define JOBCTL_TRAP_NOTIFY (1UL << JOBCTL_TRAP_NOTIFY_BIT)
+#define JOBCTL_TRAPPING (1UL << JOBCTL_TRAPPING_BIT)
+#define JOBCTL_LISTENING (1UL << JOBCTL_LISTENING_BIT)
+
+#define JOBCTL_TRAP_MASK (JOBCTL_TRAP_STOP | JOBCTL_TRAP_NOTIFY)
+#define JOBCTL_PENDING_MASK (JOBCTL_STOP_PENDING | JOBCTL_TRAP_MASK)
+
+extern bool task_set_jobctl_pending(struct task_struct *task, unsigned long mask);
+extern void task_clear_jobctl_trapping(struct task_struct *task);
+extern void task_clear_jobctl_pending(struct task_struct *task, unsigned long mask);
+
+#endif /* _LINUX_SCHED_JOBCTL_H */
diff --git a/include/linux/sched/signal.h b/include/linux/sched/signal.h
index c19a6216a785..c58e2fdf4187 100644
--- a/include/linux/sched/signal.h
+++ b/include/linux/sched/signal.h
@@ -2,6 +2,7 @@
#define _LINUX_SCHED_SIGNAL_H
#include <linux/sched.h>
+#include <linux/sched/jobctl.h>
/*
* Types defining task->signal and task->sighand and APIs using them:
--
2.7.4
^ permalink raw reply related [flat|nested] 119+ messages in thread
* [PATCH 34/89] sched/core: Move <asm/paravirt.h> include to kernel/sched/sched.h
2017-02-06 13:28 [PATCH 00/89] Major reorganization of <linux/sched.h> Ingo Molnar
` (32 preceding siblings ...)
2017-02-06 13:28 ` [PATCH 33/89] sched/headers: Move the JOBCTL_ defines and methods from <linux/sched.h> to <linux/sched/jobctl.h> Ingo Molnar
@ 2017-02-06 13:28 ` Ingo Molnar
2017-02-06 13:28 ` [PATCH 35/89] kasan, sched/headers: Remove <linux/sched.h> from <linux/kasan.h> and uninline kasan_enable/disable_current() Ingo Molnar
` (56 subsequent siblings)
90 siblings, 0 replies; 119+ messages in thread
From: Ingo Molnar @ 2017-02-06 13:28 UTC (permalink / raw)
To: linux-kernel
Cc: Andrew Morton, Linus Torvalds, Mike Galbraith, Oleg Nesterov,
Peter Zijlstra, Thomas Gleixner
Recent header reorganizations unearthed this hidden dependency:
kernel/sched/core.c:199:25: error: 'paravirt_steal_rq_enabled' undeclared (first use in this function)
kernel/sched/core.c:200:11: error: implicit declaration of function 'paravirt_steal_clock' [-Werror=implicit-function-declaration]
So move the asm/paravirt.h include from kernel/sched/cpuclock.c to kernel/sched/sched.h.
Reported-by: kbuild test robot <fengguang.wu@intel.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
kernel/sched/cputime.c | 4 ----
kernel/sched/sched.h | 4 ++++
2 files changed, 4 insertions(+), 4 deletions(-)
diff --git a/kernel/sched/cputime.c b/kernel/sched/cputime.c
index 2ecec3a4f1ee..54031fa681e2 100644
--- a/kernel/sched/cputime.c
+++ b/kernel/sched/cputime.c
@@ -6,10 +6,6 @@
#include <linux/context_tracking.h>
#include <linux/cputime.h>
#include "sched.h"
-#ifdef CONFIG_PARAVIRT
-#include <asm/paravirt.h>
-#endif
-
#ifdef CONFIG_IRQ_TIME_ACCOUNTING
diff --git a/kernel/sched/sched.h b/kernel/sched/sched.h
index 7e8ce0347fbf..04f376cf7ba9 100644
--- a/kernel/sched/sched.h
+++ b/kernel/sched/sched.h
@@ -20,6 +20,10 @@
#include <linux/tick.h>
#include <linux/slab.h>
+#ifdef CONFIG_PARAVIRT
+#include <asm/paravirt.h>
+#endif
+
#include "cpupri.h"
#include "cpudeadline.h"
#include "cpuacct.h"
--
2.7.4
^ permalink raw reply related [flat|nested] 119+ messages in thread
* [PATCH 35/89] kasan, sched/headers: Remove <linux/sched.h> from <linux/kasan.h> and uninline kasan_enable/disable_current()
2017-02-06 13:28 [PATCH 00/89] Major reorganization of <linux/sched.h> Ingo Molnar
` (33 preceding siblings ...)
2017-02-06 13:28 ` [PATCH 34/89] sched/core: Move <asm/paravirt.h> include to kernel/sched/sched.h Ingo Molnar
@ 2017-02-06 13:28 ` Ingo Molnar
2017-02-06 13:28 ` [PATCH 36/89] sched/headers: Remove <linux/cred.h> inclusion from <linux/sched.h> Ingo Molnar
` (55 subsequent siblings)
90 siblings, 0 replies; 119+ messages in thread
From: Ingo Molnar @ 2017-02-06 13:28 UTC (permalink / raw)
To: linux-kernel
Cc: Andrew Morton, Linus Torvalds, Mike Galbraith, Oleg Nesterov,
Peter Zijlstra, Thomas Gleixner
<linux/kasan.h> is a low level header that is included early
in affected kernel headers. But it includes <linux/sched.h>
which complicates the cleanup of sched.h dependencies.
But kasan.h has almost no need for sched.h: its only use of
scheduler functionality is in two inline functions which are
not used very frequently - so uninline kasan_enable_current()
and kasan_disable_current() and remove the <linux/sched.h>
include from kasan.h.
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
include/linux/kasan.h | 11 ++---------
mm/kasan/kasan.c | 10 ++++++++++
2 files changed, 12 insertions(+), 9 deletions(-)
diff --git a/include/linux/kasan.h b/include/linux/kasan.h
index 820c0ad54a01..42ee86cfbfc8 100644
--- a/include/linux/kasan.h
+++ b/include/linux/kasan.h
@@ -1,7 +1,6 @@
#ifndef _LINUX_KASAN_H
#define _LINUX_KASAN_H
-#include <linux/sched.h>
#include <linux/types.h>
struct kmem_cache;
@@ -30,16 +29,10 @@ static inline void *kasan_mem_to_shadow(const void *addr)
}
/* Enable reporting bugs after kasan_disable_current() */
-static inline void kasan_enable_current(void)
-{
- current->kasan_depth++;
-}
+extern void kasan_enable_current(void);
/* Disable reporting bugs for current task */
-static inline void kasan_disable_current(void)
-{
- current->kasan_depth--;
-}
+extern void kasan_disable_current(void);
void kasan_unpoison_shadow(const void *address, size_t size);
diff --git a/mm/kasan/kasan.c b/mm/kasan/kasan.c
index b2a0cff2bb35..37d39f7f6260 100644
--- a/mm/kasan/kasan.c
+++ b/mm/kasan/kasan.c
@@ -39,6 +39,16 @@
#include "kasan.h"
#include "../slab.h"
+void kasan_enable_current(void)
+{
+ current->kasan_depth++;
+}
+
+void kasan_disable_current(void)
+{
+ current->kasan_depth--;
+}
+
/*
* Poisons the shadow memory for 'size' bytes starting from 'addr'.
* Memory addresses should be aligned to KASAN_SHADOW_SCALE_SIZE.
--
2.7.4
^ permalink raw reply related [flat|nested] 119+ messages in thread
* [PATCH 36/89] sched/headers: Remove <linux/cred.h> inclusion from <linux/sched.h>
2017-02-06 13:28 [PATCH 00/89] Major reorganization of <linux/sched.h> Ingo Molnar
` (34 preceding siblings ...)
2017-02-06 13:28 ` [PATCH 35/89] kasan, sched/headers: Remove <linux/sched.h> from <linux/kasan.h> and uninline kasan_enable/disable_current() Ingo Molnar
@ 2017-02-06 13:28 ` Ingo Molnar
2017-02-06 13:28 ` [PATCH 37/89] sched/headers: Remove <asm/ptrace.h> " Ingo Molnar
` (54 subsequent siblings)
90 siblings, 0 replies; 119+ messages in thread
From: Ingo Molnar @ 2017-02-06 13:28 UTC (permalink / raw)
To: linux-kernel
Cc: Andrew Morton, Linus Torvalds, Mike Galbraith, Oleg Nesterov,
Peter Zijlstra, Thomas Gleixner
... and fix up missing #includes in other places that relied on sched.h
doing that for them.
Note that even if the count where we need to add extra headers seems high,
it's still a net win, because <linux/sched.h> is included in over
2,200 files ...
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
arch/arm/kernel/sys_oabi-compat.c | 1 +
arch/mips/kernel/mips-mt-fpaff.c | 1 +
arch/x86/include/asm/intel_rdt.h | 1 +
arch/x86/kernel/cpu/intel_cacheinfo.c | 1 +
block/ioprio.c | 1 +
drivers/misc/eeprom/eeprom.c | 1 +
drivers/misc/lkdtm_heap.c | 1 +
drivers/misc/vmw_vmci/vmci_context.c | 1 +
drivers/misc/vmw_vmci/vmci_host.c | 1 +
drivers/staging/lustre/lustre/include/lustre_compat.h | 1 +
drivers/staging/lustre/lustre/ptlrpc/sec.c | 1 +
drivers/xen/balloon.c | 1 +
fs/9p/v9fs.c | 1 +
fs/affs/inode.c | 1 +
fs/affs/super.c | 1 +
fs/autofs4/dev-ioctl.c | 1 +
fs/befs/linuxvfs.c | 1 +
fs/binfmt_elf.c | 1 +
fs/cachefiles/internal.h | 1 +
fs/compat.c | 1 +
fs/exportfs/expfs.c | 1 +
fs/ext2/balloc.c | 1 +
fs/ext4/ialloc.c | 2 ++
fs/file_table.c | 1 +
fs/gfs2/inode.c | 1 +
fs/gfs2/sys.c | 1 +
fs/hfs/inode.c | 1 +
fs/hfsplus/inode.c | 1 +
fs/isofs/inode.c | 1 +
fs/jffs2/fs.c | 1 +
fs/libfs.c | 1 +
fs/namespace.c | 1 +
fs/ncpfs/ioctl.c | 1 +
fs/notify/fanotify/fanotify.c | 1 +
fs/notify/inotify/inotify_fsnotify.c | 1 +
fs/omfs/inode.c | 1 +
fs/overlayfs/copy_up.c | 1 +
fs/overlayfs/inode.c | 1 +
fs/overlayfs/namei.c | 1 +
fs/overlayfs/super.c | 1 +
fs/overlayfs/util.c | 1 +
fs/posix_acl.c | 1 +
fs/proc/proc_sysctl.c | 1 +
fs/proc/root.c | 1 +
fs/quota/dquot.c | 1 +
fs/stat.c | 1 +
fs/xfs/xfs_ioctl.c | 1 +
include/linux/cred.h | 1 +
include/linux/sched.h | 1 -
include/linux/sched/signal.h | 1 +
include/linux/wait.h | 1 +
include/net/scm.h | 1 +
include/rdma/ib.h | 1 +
ipc/namespace.c | 1 +
kernel/pid_namespace.c | 1 +
kernel/ucount.c | 1 +
kernel/uid16.c | 1 +
kernel/utsname.c | 1 +
lib/sbitmap.c | 1 +
mm/usercopy.c | 1 +
net/dns_resolver/dns_query.c | 2 ++
net/netfilter/xt_owner.c | 2 ++
net/sunrpc/auth.c | 1 +
security/apparmor/policy.c | 1 +
security/keys/internal.h | 1 +
security/keys/keyctl.c | 1 +
security/keys/persistent.c | 2 ++
67 files changed, 70 insertions(+), 1 deletion(-)
diff --git a/arch/arm/kernel/sys_oabi-compat.c b/arch/arm/kernel/sys_oabi-compat.c
index 5f221acd21ae..b9786f491873 100644
--- a/arch/arm/kernel/sys_oabi-compat.c
+++ b/arch/arm/kernel/sys_oabi-compat.c
@@ -76,6 +76,7 @@
#include <linux/syscalls.h>
#include <linux/errno.h>
#include <linux/fs.h>
+#include <linux/cred.h>
#include <linux/fcntl.h>
#include <linux/eventpoll.h>
#include <linux/sem.h>
diff --git a/arch/mips/kernel/mips-mt-fpaff.c b/arch/mips/kernel/mips-mt-fpaff.c
index a12904ea9f65..dfa031d4204d 100644
--- a/arch/mips/kernel/mips-mt-fpaff.c
+++ b/arch/mips/kernel/mips-mt-fpaff.c
@@ -9,6 +9,7 @@
#include <linux/kernel.h>
#include <linux/init.h>
#include <linux/sched.h>
+#include <linux/cred.h>
#include <linux/security.h>
#include <linux/types.h>
#include <linux/uaccess.h>
diff --git a/arch/x86/include/asm/intel_rdt.h b/arch/x86/include/asm/intel_rdt.h
index 95ce5c85b009..0d64397cee58 100644
--- a/arch/x86/include/asm/intel_rdt.h
+++ b/arch/x86/include/asm/intel_rdt.h
@@ -3,6 +3,7 @@
#ifdef CONFIG_INTEL_RDT_A
+#include <linux/sched.h>
#include <linux/kernfs.h>
#include <linux/jump_label.h>
diff --git a/arch/x86/kernel/cpu/intel_cacheinfo.c b/arch/x86/kernel/cpu/intel_cacheinfo.c
index 0282b0df004a..c55fb2cb2acc 100644
--- a/arch/x86/kernel/cpu/intel_cacheinfo.c
+++ b/arch/x86/kernel/cpu/intel_cacheinfo.c
@@ -11,6 +11,7 @@
#include <linux/cacheinfo.h>
#include <linux/cpu.h>
#include <linux/sched.h>
+#include <linux/capability.h>
#include <linux/sysfs.h>
#include <linux/pci.h>
diff --git a/block/ioprio.c b/block/ioprio.c
index f68f31476a33..88e916d30180 100644
--- a/block/ioprio.c
+++ b/block/ioprio.c
@@ -23,6 +23,7 @@
#include <linux/kernel.h>
#include <linux/export.h>
#include <linux/ioprio.h>
+#include <linux/cred.h>
#include <linux/blkdev.h>
#include <linux/capability.h>
#include <linux/sched/user.h>
diff --git a/drivers/misc/eeprom/eeprom.c b/drivers/misc/eeprom/eeprom.c
index 3d1d55157e5f..2fad790db3bf 100644
--- a/drivers/misc/eeprom/eeprom.c
+++ b/drivers/misc/eeprom/eeprom.c
@@ -19,6 +19,7 @@
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/device.h>
+#include <linux/capability.h>
#include <linux/jiffies.h>
#include <linux/i2c.h>
#include <linux/mutex.h>
diff --git a/drivers/misc/lkdtm_heap.c b/drivers/misc/lkdtm_heap.c
index 0f1581664c1c..ffb6aeac07b3 100644
--- a/drivers/misc/lkdtm_heap.c
+++ b/drivers/misc/lkdtm_heap.c
@@ -4,6 +4,7 @@
*/
#include "lkdtm.h"
#include <linux/slab.h>
+#include <linux/sched.h>
/*
* This tries to stay within the next largest power-of-2 kmalloc cache
diff --git a/drivers/misc/vmw_vmci/vmci_context.c b/drivers/misc/vmw_vmci/vmci_context.c
index f866a4baecb5..2e828725d110 100644
--- a/drivers/misc/vmw_vmci/vmci_context.c
+++ b/drivers/misc/vmw_vmci/vmci_context.c
@@ -19,6 +19,7 @@
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/sched.h>
+#include <linux/cred.h>
#include <linux/slab.h>
#include "vmci_queue_pair.h"
diff --git a/drivers/misc/vmw_vmci/vmci_host.c b/drivers/misc/vmw_vmci/vmci_host.c
index ec090105eb4b..8a16a26e9658 100644
--- a/drivers/misc/vmw_vmci/vmci_host.c
+++ b/drivers/misc/vmw_vmci/vmci_host.c
@@ -24,6 +24,7 @@
#include <linux/module.h>
#include <linux/mutex.h>
#include <linux/sched.h>
+#include <linux/cred.h>
#include <linux/slab.h>
#include <linux/file.h>
#include <linux/init.h>
diff --git a/drivers/staging/lustre/lustre/include/lustre_compat.h b/drivers/staging/lustre/lustre/include/lustre_compat.h
index 300e96fb032a..da9ce195c52e 100644
--- a/drivers/staging/lustre/lustre/include/lustre_compat.h
+++ b/drivers/staging/lustre/lustre/include/lustre_compat.h
@@ -35,6 +35,7 @@
#include <linux/fs_struct.h>
#include <linux/namei.h>
+#include <linux/cred.h>
#include "lustre_patchless_compat.h"
diff --git a/drivers/staging/lustre/lustre/ptlrpc/sec.c b/drivers/staging/lustre/lustre/ptlrpc/sec.c
index e860df7c45a2..49f34fd655c3 100644
--- a/drivers/staging/lustre/lustre/ptlrpc/sec.c
+++ b/drivers/staging/lustre/lustre/ptlrpc/sec.c
@@ -38,6 +38,7 @@
#include "../../include/linux/libcfs/libcfs.h"
#include <linux/crypto.h>
+#include <linux/cred.h>
#include <linux/key.h>
#include "../include/obd.h"
diff --git a/drivers/xen/balloon.c b/drivers/xen/balloon.c
index db107fa50ca1..a6d4378eb8d9 100644
--- a/drivers/xen/balloon.c
+++ b/drivers/xen/balloon.c
@@ -41,6 +41,7 @@
#include <linux/cpu.h>
#include <linux/kernel.h>
#include <linux/sched.h>
+#include <linux/cred.h>
#include <linux/errno.h>
#include <linux/mm.h>
#include <linux/bootmem.h>
diff --git a/fs/9p/v9fs.c b/fs/9p/v9fs.c
index 072e7599583a..a89f3cfe3c7d 100644
--- a/fs/9p/v9fs.c
+++ b/fs/9p/v9fs.c
@@ -29,6 +29,7 @@
#include <linux/errno.h>
#include <linux/fs.h>
#include <linux/sched.h>
+#include <linux/cred.h>
#include <linux/parser.h>
#include <linux/idr.h>
#include <linux/slab.h>
diff --git a/fs/affs/inode.c b/fs/affs/inode.c
index fe4e1290dbb5..69d9d7a16a64 100644
--- a/fs/affs/inode.c
+++ b/fs/affs/inode.c
@@ -10,6 +10,7 @@
* (C) 1991 Linus Torvalds - minix filesystem
*/
#include <linux/sched.h>
+#include <linux/cred.h>
#include <linux/gfp.h>
#include "affs.h"
diff --git a/fs/affs/super.c b/fs/affs/super.c
index d6384863192c..4fefaa4cd8db 100644
--- a/fs/affs/super.c
+++ b/fs/affs/super.c
@@ -16,6 +16,7 @@
#include <linux/parser.h>
#include <linux/magic.h>
#include <linux/sched.h>
+#include <linux/cred.h>
#include <linux/slab.h>
#include <linux/writeback.h>
#include <linux/blkdev.h>
diff --git a/fs/autofs4/dev-ioctl.c b/fs/autofs4/dev-ioctl.c
index 6f48d670c941..976acd6b4e94 100644
--- a/fs/autofs4/dev-ioctl.c
+++ b/fs/autofs4/dev-ioctl.c
@@ -17,6 +17,7 @@
#include <linux/file.h>
#include <linux/fdtable.h>
#include <linux/sched.h>
+#include <linux/cred.h>
#include <linux/compat.h>
#include <linux/syscalls.h>
#include <linux/magic.h>
diff --git a/fs/befs/linuxvfs.c b/fs/befs/linuxvfs.c
index 19407165f4aa..c500e954debb 100644
--- a/fs/befs/linuxvfs.c
+++ b/fs/befs/linuxvfs.c
@@ -18,6 +18,7 @@
#include <linux/parser.h>
#include <linux/namei.h>
#include <linux/sched.h>
+#include <linux/cred.h>
#include <linux/exportfs.h>
#include "befs.h"
diff --git a/fs/binfmt_elf.c b/fs/binfmt_elf.c
index 12894ae50622..bab46e06731b 100644
--- a/fs/binfmt_elf.c
+++ b/fs/binfmt_elf.c
@@ -36,6 +36,7 @@
#include <linux/coredump.h>
#include <linux/sched.h>
#include <linux/sched/coredump.h>
+#include <linux/cred.h>
#include <linux/dax.h>
#include <linux/uaccess.h>
#include <asm/param.h>
diff --git a/fs/cachefiles/internal.h b/fs/cachefiles/internal.h
index cd1effee8a49..9bf90bcc56ac 100644
--- a/fs/cachefiles/internal.h
+++ b/fs/cachefiles/internal.h
@@ -19,6 +19,7 @@
#include <linux/fscache-cache.h>
#include <linux/timer.h>
#include <linux/wait.h>
+#include <linux/cred.h>
#include <linux/workqueue.h>
#include <linux/security.h>
diff --git a/fs/compat.c b/fs/compat.c
index e50a2114f474..c61b506f5bc9 100644
--- a/fs/compat.c
+++ b/fs/compat.c
@@ -21,6 +21,7 @@
#include <linux/compat.h>
#include <linux/errno.h>
#include <linux/time.h>
+#include <linux/cred.h>
#include <linux/fs.h>
#include <linux/fcntl.h>
#include <linux/namei.h>
diff --git a/fs/exportfs/expfs.c b/fs/exportfs/expfs.c
index a4b531be9168..9ec1038f937e 100644
--- a/fs/exportfs/expfs.c
+++ b/fs/exportfs/expfs.c
@@ -15,6 +15,7 @@
#include <linux/mount.h>
#include <linux/namei.h>
#include <linux/sched.h>
+#include <linux/cred.h>
#define dprintk(fmt, args...) do{}while(0)
diff --git a/fs/ext2/balloc.c b/fs/ext2/balloc.c
index 4c40c0786e16..d0bdb74f0e15 100644
--- a/fs/ext2/balloc.c
+++ b/fs/ext2/balloc.c
@@ -15,6 +15,7 @@
#include <linux/quotaops.h>
#include <linux/slab.h>
#include <linux/sched.h>
+#include <linux/cred.h>
#include <linux/buffer_head.h>
#include <linux/capability.h>
diff --git a/fs/ext4/ialloc.c b/fs/ext4/ialloc.c
index e57e8d90ea54..0d590e996ffc 100644
--- a/fs/ext4/ialloc.c
+++ b/fs/ext4/ialloc.c
@@ -21,6 +21,8 @@
#include <linux/random.h>
#include <linux/bitops.h>
#include <linux/blkdev.h>
+#include <linux/cred.h>
+
#include <asm/byteorder.h>
#include "ext4.h"
diff --git a/fs/file_table.c b/fs/file_table.c
index 6d982b57de92..954d510b765a 100644
--- a/fs/file_table.c
+++ b/fs/file_table.c
@@ -13,6 +13,7 @@
#include <linux/module.h>
#include <linux/fs.h>
#include <linux/security.h>
+#include <linux/cred.h>
#include <linux/eventpoll.h>
#include <linux/rcupdate.h>
#include <linux/mount.h>
diff --git a/fs/gfs2/inode.c b/fs/gfs2/inode.c
index eb7724b8578a..9d28f55fbd1d 100644
--- a/fs/gfs2/inode.c
+++ b/fs/gfs2/inode.c
@@ -13,6 +13,7 @@
#include <linux/buffer_head.h>
#include <linux/namei.h>
#include <linux/mm.h>
+#include <linux/cred.h>
#include <linux/xattr.h>
#include <linux/posix_acl.h>
#include <linux/gfs2_ondisk.h>
diff --git a/fs/gfs2/sys.c b/fs/gfs2/sys.c
index f8d30e41d1d3..7a515345610c 100644
--- a/fs/gfs2/sys.c
+++ b/fs/gfs2/sys.c
@@ -10,6 +10,7 @@
#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
#include <linux/sched.h>
+#include <linux/cred.h>
#include <linux/spinlock.h>
#include <linux/completion.h>
#include <linux/buffer_head.h>
diff --git a/fs/hfs/inode.c b/fs/hfs/inode.c
index f776acf2378a..bfbba799430f 100644
--- a/fs/hfs/inode.c
+++ b/fs/hfs/inode.c
@@ -14,6 +14,7 @@
#include <linux/pagemap.h>
#include <linux/mpage.h>
#include <linux/sched.h>
+#include <linux/cred.h>
#include <linux/uio.h>
#include <linux/xattr.h>
diff --git a/fs/hfsplus/inode.c b/fs/hfsplus/inode.c
index 2e796f8302ff..e8638d528195 100644
--- a/fs/hfsplus/inode.c
+++ b/fs/hfsplus/inode.c
@@ -14,6 +14,7 @@
#include <linux/pagemap.h>
#include <linux/mpage.h>
#include <linux/sched.h>
+#include <linux/cred.h>
#include <linux/uio.h>
#include "hfsplus_fs.h"
diff --git a/fs/isofs/inode.c b/fs/isofs/inode.c
index 871c8b392099..020ba0936146 100644
--- a/fs/isofs/inode.c
+++ b/fs/isofs/inode.c
@@ -15,6 +15,7 @@
#include <linux/module.h>
#include <linux/slab.h>
+#include <linux/cred.h>
#include <linux/nls.h>
#include <linux/ctype.h>
#include <linux/statfs.h>
diff --git a/fs/jffs2/fs.c b/fs/jffs2/fs.c
index 567653f7c0ce..76fa814df3d1 100644
--- a/fs/jffs2/fs.c
+++ b/fs/jffs2/fs.c
@@ -15,6 +15,7 @@
#include <linux/capability.h>
#include <linux/kernel.h>
#include <linux/sched.h>
+#include <linux/cred.h>
#include <linux/fs.h>
#include <linux/list.h>
#include <linux/mtd/mtd.h>
diff --git a/fs/libfs.c b/fs/libfs.c
index 28d6f35feed6..217896ca4fae 100644
--- a/fs/libfs.c
+++ b/fs/libfs.c
@@ -7,6 +7,7 @@
#include <linux/export.h>
#include <linux/pagemap.h>
#include <linux/slab.h>
+#include <linux/cred.h>
#include <linux/mount.h>
#include <linux/vfs.h>
#include <linux/quotaops.h>
diff --git a/fs/namespace.c b/fs/namespace.c
index 487ba30bb5c6..b2ea27d8312c 100644
--- a/fs/namespace.c
+++ b/fs/namespace.c
@@ -15,6 +15,7 @@
#include <linux/user_namespace.h>
#include <linux/namei.h>
#include <linux/security.h>
+#include <linux/cred.h>
#include <linux/idr.h>
#include <linux/init.h> /* init_rootfs */
#include <linux/fs_struct.h> /* get_fs_root et.al. */
diff --git a/fs/ncpfs/ioctl.c b/fs/ncpfs/ioctl.c
index 4434e4977cf3..12550c2320cc 100644
--- a/fs/ncpfs/ioctl.c
+++ b/fs/ncpfs/ioctl.c
@@ -19,6 +19,7 @@
#include <linux/highuid.h>
#include <linux/vmalloc.h>
#include <linux/sched.h>
+#include <linux/cred.h>
#include <linux/uaccess.h>
diff --git a/fs/notify/fanotify/fanotify.c b/fs/notify/fanotify/fanotify.c
index bbc175d4213d..8eb382902628 100644
--- a/fs/notify/fanotify/fanotify.c
+++ b/fs/notify/fanotify/fanotify.c
@@ -6,6 +6,7 @@
#include <linux/kernel.h> /* UINT_MAX */
#include <linux/mount.h>
#include <linux/sched.h>
+#include <linux/sched/user.h>
#include <linux/types.h>
#include <linux/wait.h>
diff --git a/fs/notify/inotify/inotify_fsnotify.c b/fs/notify/inotify/inotify_fsnotify.c
index 19e7ec109a75..ff3b00e2e450 100644
--- a/fs/notify/inotify/inotify_fsnotify.c
+++ b/fs/notify/inotify/inotify_fsnotify.c
@@ -30,6 +30,7 @@
#include <linux/slab.h> /* kmem_* */
#include <linux/types.h>
#include <linux/sched.h>
+#include <linux/sched/user.h>
#include "inotify.h"
diff --git a/fs/omfs/inode.c b/fs/omfs/inode.c
index df7ea8543a2e..8c9034ee7383 100644
--- a/fs/omfs/inode.c
+++ b/fs/omfs/inode.c
@@ -8,6 +8,7 @@
#include <linux/slab.h>
#include <linux/fs.h>
#include <linux/vfs.h>
+#include <linux/cred.h>
#include <linux/parser.h>
#include <linux/buffer_head.h>
#include <linux/vmalloc.h>
diff --git a/fs/overlayfs/copy_up.c b/fs/overlayfs/copy_up.c
index f57043dace62..53d3f830358f 100644
--- a/fs/overlayfs/copy_up.c
+++ b/fs/overlayfs/copy_up.c
@@ -16,6 +16,7 @@
#include <linux/security.h>
#include <linux/uaccess.h>
#include <linux/sched.h>
+#include <linux/cred.h>
#include <linux/namei.h>
#include <linux/fdtable.h>
#include <linux/ratelimit.h>
diff --git a/fs/overlayfs/inode.c b/fs/overlayfs/inode.c
index 08643ac44a02..6639f487f835 100644
--- a/fs/overlayfs/inode.c
+++ b/fs/overlayfs/inode.c
@@ -9,6 +9,7 @@
#include <linux/fs.h>
#include <linux/slab.h>
+#include <linux/cred.h>
#include <linux/xattr.h>
#include <linux/posix_acl.h>
#include "overlayfs.h"
diff --git a/fs/overlayfs/namei.c b/fs/overlayfs/namei.c
index 023bb0b03352..b8b077821fb0 100644
--- a/fs/overlayfs/namei.c
+++ b/fs/overlayfs/namei.c
@@ -8,6 +8,7 @@
*/
#include <linux/fs.h>
+#include <linux/cred.h>
#include <linux/namei.h>
#include <linux/xattr.h>
#include <linux/ratelimit.h>
diff --git a/fs/overlayfs/super.c b/fs/overlayfs/super.c
index 20f48abbb82f..9aa37c2f7f7d 100644
--- a/fs/overlayfs/super.c
+++ b/fs/overlayfs/super.c
@@ -7,6 +7,7 @@
* the Free Software Foundation.
*/
+#include <uapi/linux/magic.h>
#include <linux/fs.h>
#include <linux/namei.h>
#include <linux/xattr.h>
diff --git a/fs/overlayfs/util.c b/fs/overlayfs/util.c
index 952286f4826c..9dc1c0af586b 100644
--- a/fs/overlayfs/util.c
+++ b/fs/overlayfs/util.c
@@ -10,6 +10,7 @@
#include <linux/fs.h>
#include <linux/mount.h>
#include <linux/slab.h>
+#include <linux/cred.h>
#include <linux/xattr.h>
#include "overlayfs.h"
#include "ovl_entry.h"
diff --git a/fs/posix_acl.c b/fs/posix_acl.c
index c9d48dc78495..eebf5f6cf6d5 100644
--- a/fs/posix_acl.c
+++ b/fs/posix_acl.c
@@ -15,6 +15,7 @@
#include <linux/atomic.h>
#include <linux/fs.h>
#include <linux/sched.h>
+#include <linux/cred.h>
#include <linux/posix_acl.h>
#include <linux/posix_acl_xattr.h>
#include <linux/xattr.h>
diff --git a/fs/proc/proc_sysctl.c b/fs/proc/proc_sysctl.c
index d4e37acd4821..34efc483a17a 100644
--- a/fs/proc/proc_sysctl.c
+++ b/fs/proc/proc_sysctl.c
@@ -8,6 +8,7 @@
#include <linux/printk.h>
#include <linux/security.h>
#include <linux/sched.h>
+#include <linux/cred.h>
#include <linux/namei.h>
#include <linux/mm.h>
#include <linux/module.h>
diff --git a/fs/proc/root.c b/fs/proc/root.c
index 1988440b2049..1e0b97a646ff 100644
--- a/fs/proc/root.c
+++ b/fs/proc/root.c
@@ -20,6 +20,7 @@
#include <linux/mount.h>
#include <linux/pid_namespace.h>
#include <linux/parser.h>
+#include <linux/cred.h>
#include "internal.h"
diff --git a/fs/quota/dquot.c b/fs/quota/dquot.c
index 406fed92362a..74b489e3714d 100644
--- a/fs/quota/dquot.c
+++ b/fs/quota/dquot.c
@@ -72,6 +72,7 @@
#include <linux/proc_fs.h>
#include <linux/security.h>
#include <linux/sched.h>
+#include <linux/cred.h>
#include <linux/kmod.h>
#include <linux/namei.h>
#include <linux/capability.h>
diff --git a/fs/stat.c b/fs/stat.c
index a268b7f27adf..f2197b9a10c6 100644
--- a/fs/stat.c
+++ b/fs/stat.c
@@ -12,6 +12,7 @@
#include <linux/fs.h>
#include <linux/namei.h>
#include <linux/security.h>
+#include <linux/cred.h>
#include <linux/syscalls.h>
#include <linux/pagemap.h>
diff --git a/fs/xfs/xfs_ioctl.c b/fs/xfs/xfs_ioctl.c
index c67cfb451fd3..3d75b81320ee 100644
--- a/fs/xfs/xfs_ioctl.c
+++ b/fs/xfs/xfs_ioctl.c
@@ -43,6 +43,7 @@
#include "xfs_acl.h"
#include <linux/capability.h>
+#include <linux/cred.h>
#include <linux/dcache.h>
#include <linux/mount.h>
#include <linux/namei.h>
diff --git a/include/linux/cred.h b/include/linux/cred.h
index 045d33e48069..b03e7d049a64 100644
--- a/include/linux/cred.h
+++ b/include/linux/cred.h
@@ -18,6 +18,7 @@
#include <linux/selinux.h>
#include <linux/atomic.h>
#include <linux/uidgid.h>
+#include <linux/sched.h>
#include <linux/sched/user.h>
struct cred;
diff --git a/include/linux/sched.h b/include/linux/sched.h
index 4a35316f43dd..d67669c32ed3 100644
--- a/include/linux/sched.h
+++ b/include/linux/sched.h
@@ -46,7 +46,6 @@
#include <linux/kcov.h>
#include <linux/task_io_accounting.h>
#include <linux/latencytop.h>
-#include <linux/cred.h>
#include <linux/llist.h>
#include <linux/uidgid.h>
#include <linux/gfp.h>
diff --git a/include/linux/sched/signal.h b/include/linux/sched/signal.h
index c58e2fdf4187..e19e749d2529 100644
--- a/include/linux/sched/signal.h
+++ b/include/linux/sched/signal.h
@@ -1,6 +1,7 @@
#ifndef _LINUX_SCHED_SIGNAL_H
#define _LINUX_SCHED_SIGNAL_H
+#include <linux/cred.h>
#include <linux/sched.h>
#include <linux/sched/jobctl.h>
diff --git a/include/linux/wait.h b/include/linux/wait.h
index 1421132e9086..aacb1282d19a 100644
--- a/include/linux/wait.h
+++ b/include/linux/wait.h
@@ -6,6 +6,7 @@
#include <linux/list.h>
#include <linux/stddef.h>
#include <linux/spinlock.h>
+
#include <asm/current.h>
#include <uapi/linux/wait.h>
diff --git a/include/net/scm.h b/include/net/scm.h
index 59fa93c01d2a..142ea9e7a6d0 100644
--- a/include/net/scm.h
+++ b/include/net/scm.h
@@ -3,6 +3,7 @@
#include <linux/limits.h>
#include <linux/net.h>
+#include <linux/cred.h>
#include <linux/security.h>
#include <linux/pid.h>
#include <linux/nsproxy.h>
diff --git a/include/rdma/ib.h b/include/rdma/ib.h
index a6b93706b0fc..9b4c22a36931 100644
--- a/include/rdma/ib.h
+++ b/include/rdma/ib.h
@@ -35,6 +35,7 @@
#include <linux/types.h>
#include <linux/sched.h>
+#include <linux/cred.h>
struct ib_addr {
union {
diff --git a/ipc/namespace.c b/ipc/namespace.c
index 0abdea496493..1f1d713ac19c 100644
--- a/ipc/namespace.c
+++ b/ipc/namespace.c
@@ -9,6 +9,7 @@
#include <linux/rcupdate.h>
#include <linux/nsproxy.h>
#include <linux/slab.h>
+#include <linux/cred.h>
#include <linux/fs.h>
#include <linux/mount.h>
#include <linux/user_namespace.h>
diff --git a/kernel/pid_namespace.c b/kernel/pid_namespace.c
index eef2ce968636..25314c96fbe6 100644
--- a/kernel/pid_namespace.c
+++ b/kernel/pid_namespace.c
@@ -12,6 +12,7 @@
#include <linux/pid_namespace.h>
#include <linux/user_namespace.h>
#include <linux/syscalls.h>
+#include <linux/cred.h>
#include <linux/err.h>
#include <linux/acct.h>
#include <linux/slab.h>
diff --git a/kernel/ucount.c b/kernel/ucount.c
index 4bbd38ec3788..e9d21aa2ca25 100644
--- a/kernel/ucount.c
+++ b/kernel/ucount.c
@@ -8,6 +8,7 @@
#include <linux/stat.h>
#include <linux/sysctl.h>
#include <linux/slab.h>
+#include <linux/cred.h>
#include <linux/hash.h>
#include <linux/user_namespace.h>
diff --git a/kernel/uid16.c b/kernel/uid16.c
index 71645ae9303a..5c2dc5b2bf4f 100644
--- a/kernel/uid16.c
+++ b/kernel/uid16.c
@@ -12,6 +12,7 @@
#include <linux/init.h>
#include <linux/highuid.h>
#include <linux/security.h>
+#include <linux/cred.h>
#include <linux/syscalls.h>
#include <linux/uaccess.h>
diff --git a/kernel/utsname.c b/kernel/utsname.c
index 6976cd47dcf6..06585ad296ff 100644
--- a/kernel/utsname.c
+++ b/kernel/utsname.c
@@ -14,6 +14,7 @@
#include <linux/utsname.h>
#include <linux/err.h>
#include <linux/slab.h>
+#include <linux/cred.h>
#include <linux/user_namespace.h>
#include <linux/proc_ns.h>
diff --git a/lib/sbitmap.c b/lib/sbitmap.c
index 2cecf05c82fd..8641ca20a4f0 100644
--- a/lib/sbitmap.c
+++ b/lib/sbitmap.c
@@ -15,6 +15,7 @@
* along with this program. If not, see <https://www.gnu.org/licenses/>.
*/
+#include <linux/sched.h>
#include <linux/random.h>
#include <linux/sbitmap.h>
diff --git a/mm/usercopy.c b/mm/usercopy.c
index 3c8da0af9695..35685a236e34 100644
--- a/mm/usercopy.c
+++ b/mm/usercopy.c
@@ -16,6 +16,7 @@
#include <linux/mm.h>
#include <linux/slab.h>
+#include <linux/sched.h>
#include <asm/sections.h>
enum {
diff --git a/net/dns_resolver/dns_query.c b/net/dns_resolver/dns_query.c
index ecc28cff08ab..ab9fec00a788 100644
--- a/net/dns_resolver/dns_query.c
+++ b/net/dns_resolver/dns_query.c
@@ -37,8 +37,10 @@
#include <linux/module.h>
#include <linux/slab.h>
+#include <linux/cred.h>
#include <linux/dns_resolver.h>
#include <linux/err.h>
+
#include <keys/dns_resolver-type.h>
#include <keys/user-type.h>
diff --git a/net/netfilter/xt_owner.c b/net/netfilter/xt_owner.c
index 16477df45b3b..3d705c688a27 100644
--- a/net/netfilter/xt_owner.c
+++ b/net/netfilter/xt_owner.c
@@ -13,6 +13,8 @@
#include <linux/module.h>
#include <linux/skbuff.h>
#include <linux/file.h>
+#include <linux/cred.h>
+
#include <net/sock.h>
#include <net/inet_sock.h>
#include <linux/netfilter/x_tables.h>
diff --git a/net/sunrpc/auth.c b/net/sunrpc/auth.c
index 2bff63a73cf8..d9f5ee69cb16 100644
--- a/net/sunrpc/auth.c
+++ b/net/sunrpc/auth.c
@@ -8,6 +8,7 @@
#include <linux/types.h>
#include <linux/sched.h>
+#include <linux/cred.h>
#include <linux/module.h>
#include <linux/slab.h>
#include <linux/errno.h>
diff --git a/security/apparmor/policy.c b/security/apparmor/policy.c
index 179e68d7dc5f..ac4092e191b1 100644
--- a/security/apparmor/policy.c
+++ b/security/apparmor/policy.c
@@ -76,6 +76,7 @@
#include <linux/slab.h>
#include <linux/spinlock.h>
#include <linux/string.h>
+#include <linux/cred.h>
#include "include/apparmor.h"
#include "include/capability.h"
diff --git a/security/keys/internal.h b/security/keys/internal.h
index a705a7d92ad7..a2f4c0abb8d8 100644
--- a/security/keys/internal.h
+++ b/security/keys/internal.h
@@ -13,6 +13,7 @@
#define _INTERNAL_H
#include <linux/sched.h>
+#include <linux/cred.h>
#include <linux/key-type.h>
#include <linux/task_work.h>
#include <linux/keyctl.h>
diff --git a/security/keys/keyctl.c b/security/keys/keyctl.c
index 04a764f71ec8..bcb0b597c391 100644
--- a/security/keys/keyctl.c
+++ b/security/keys/keyctl.c
@@ -18,6 +18,7 @@
#include <linux/keyctl.h>
#include <linux/fs.h>
#include <linux/capability.h>
+#include <linux/cred.h>
#include <linux/string.h>
#include <linux/err.h>
#include <linux/vmalloc.h>
diff --git a/security/keys/persistent.c b/security/keys/persistent.c
index 1edc1f0a0ce2..d0cb5b32eff7 100644
--- a/security/keys/persistent.c
+++ b/security/keys/persistent.c
@@ -10,6 +10,8 @@
*/
#include <linux/user_namespace.h>
+#include <linux/cred.h>
+
#include "internal.h"
unsigned persistent_keyring_expiry = 3 * 24 * 3600; /* Expire after 3 days of non-use */
--
2.7.4
^ permalink raw reply related [flat|nested] 119+ messages in thread
* [PATCH 37/89] sched/headers: Remove <asm/ptrace.h> from <linux/sched.h>
2017-02-06 13:28 [PATCH 00/89] Major reorganization of <linux/sched.h> Ingo Molnar
` (35 preceding siblings ...)
2017-02-06 13:28 ` [PATCH 36/89] sched/headers: Remove <linux/cred.h> inclusion from <linux/sched.h> Ingo Molnar
@ 2017-02-06 13:28 ` Ingo Molnar
2017-02-06 13:28 ` [PATCH 38/89] sched/headers: Remove <linux/rtmutex.h> " Ingo Molnar
` (53 subsequent siblings)
90 siblings, 0 replies; 119+ messages in thread
From: Ingo Molnar @ 2017-02-06 13:28 UTC (permalink / raw)
To: linux-kernel
Cc: Andrew Morton, Linus Torvalds, Mike Galbraith, Oleg Nesterov,
Peter Zijlstra, Thomas Gleixner
... and fix up missing #includes in other places that relied on sched.h
doing that for them.
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
arch/alpha/math-emu/math.c | 1 +
arch/sh/kernel/cpu/fpu.c | 1 +
arch/sh/kernel/process.c | 1 +
drivers/oprofile/cpu_buffer.c | 2 ++
include/linux/sched.h | 1 -
5 files changed, 5 insertions(+), 1 deletion(-)
diff --git a/arch/alpha/math-emu/math.c b/arch/alpha/math-emu/math.c
index fa5ae0ad8983..d17d705f6545 100644
--- a/arch/alpha/math-emu/math.c
+++ b/arch/alpha/math-emu/math.c
@@ -2,6 +2,7 @@
#include <linux/types.h>
#include <linux/kernel.h>
#include <linux/sched.h>
+#include <asm/ptrace.h>
#include <linux/uaccess.h>
diff --git a/arch/sh/kernel/cpu/fpu.c b/arch/sh/kernel/cpu/fpu.c
index 4e332244ea75..4d4737d099c6 100644
--- a/arch/sh/kernel/cpu/fpu.c
+++ b/arch/sh/kernel/cpu/fpu.c
@@ -3,6 +3,7 @@
#include <asm/processor.h>
#include <asm/fpu.h>
#include <asm/traps.h>
+#include <asm/ptrace.h>
int init_fpu(struct task_struct *tsk)
{
diff --git a/arch/sh/kernel/process.c b/arch/sh/kernel/process.c
index 53bc6c4c84ec..30bff33e810e 100644
--- a/arch/sh/kernel/process.c
+++ b/arch/sh/kernel/process.c
@@ -5,6 +5,7 @@
#include <linux/export.h>
#include <linux/stackprotector.h>
#include <asm/fpu.h>
+#include <asm/ptrace.h>
struct kmem_cache *task_xstate_cachep = NULL;
unsigned int xstate_size;
diff --git a/drivers/oprofile/cpu_buffer.c b/drivers/oprofile/cpu_buffer.c
index 0581461c3a67..eda2633a393d 100644
--- a/drivers/oprofile/cpu_buffer.c
+++ b/drivers/oprofile/cpu_buffer.c
@@ -23,6 +23,8 @@
#include <linux/oprofile.h>
#include <linux/errno.h>
+#include <asm/ptrace.h>
+
#include "event_buffer.h"
#include "cpu_buffer.h"
#include "buffer_sync.h"
diff --git a/include/linux/sched.h b/include/linux/sched.h
index d67669c32ed3..87ff18f0ed76 100644
--- a/include/linux/sched.h
+++ b/include/linux/sched.h
@@ -22,7 +22,6 @@
#include <linux/preempt.h>
#include <asm/page.h>
-#include <asm/ptrace.h>
#include <linux/smp.h>
#include <linux/sem.h>
--
2.7.4
^ permalink raw reply related [flat|nested] 119+ messages in thread
* [PATCH 38/89] sched/headers: Remove <linux/rtmutex.h> from <linux/sched.h>
2017-02-06 13:28 [PATCH 00/89] Major reorganization of <linux/sched.h> Ingo Molnar
` (36 preceding siblings ...)
2017-02-06 13:28 ` [PATCH 37/89] sched/headers: Remove <asm/ptrace.h> " Ingo Molnar
@ 2017-02-06 13:28 ` Ingo Molnar
2017-02-06 13:28 ` [PATCH 39/89] sched/headers: Remove various unrelated headers " Ingo Molnar
` (52 subsequent siblings)
90 siblings, 0 replies; 119+ messages in thread
From: Ingo Molnar @ 2017-02-06 13:28 UTC (permalink / raw)
To: linux-kernel
Cc: Andrew Morton, Linus Torvalds, Mike Galbraith, Oleg Nesterov,
Peter Zijlstra, Thomas Gleixner
... and fix up missing #includes in other places that relied on sched.h
doing that for them.
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
include/linux/i2c.h | 1 +
include/linux/sched.h | 1 -
kernel/fork.c | 1 +
kernel/locking/locktorture.c | 1 +
kernel/rcu/tree.h | 1 +
5 files changed, 4 insertions(+), 1 deletion(-)
diff --git a/include/linux/i2c.h b/include/linux/i2c.h
index 4b45ec46161f..99ef771a52d2 100644
--- a/include/linux/i2c.h
+++ b/include/linux/i2c.h
@@ -30,6 +30,7 @@
#include <linux/device.h> /* for struct device */
#include <linux/sched.h> /* for completion */
#include <linux/mutex.h>
+#include <linux/rtmutex.h>
#include <linux/irqdomain.h> /* for Host Notify IRQ */
#include <linux/of.h> /* for struct device_node */
#include <linux/swab.h> /* for swab16 */
diff --git a/include/linux/sched.h b/include/linux/sched.h
index 87ff18f0ed76..9ba2f75dc4c2 100644
--- a/include/linux/sched.h
+++ b/include/linux/sched.h
@@ -35,7 +35,6 @@
#include <linux/seccomp.h>
#include <linux/rcupdate.h>
#include <linux/rculist.h>
-#include <linux/rtmutex.h>
#include <linux/time.h>
#include <linux/param.h>
diff --git a/kernel/fork.c b/kernel/fork.c
index f060b1c6a947..7752942b9701 100644
--- a/kernel/fork.c
+++ b/kernel/fork.c
@@ -17,6 +17,7 @@
#include <linux/sched/coredump.h>
#include <linux/sched/user.h>
#include <linux/sched/numa_balancing.h>
+#include <linux/rtmutex.h>
#include <linux/init.h>
#include <linux/unistd.h>
#include <linux/module.h>
diff --git a/kernel/locking/locktorture.c b/kernel/locking/locktorture.c
index c8d1be88322a..bb765528d282 100644
--- a/kernel/locking/locktorture.c
+++ b/kernel/locking/locktorture.c
@@ -33,6 +33,7 @@
#include <linux/interrupt.h>
#include <linux/sched.h>
#include <uapi/linux/sched/types.h>
+#include <linux/rtmutex.h>
#include <linux/atomic.h>
#include <linux/moduleparam.h>
#include <linux/delay.h>
diff --git a/kernel/rcu/tree.h b/kernel/rcu/tree.h
index fe98dd24adf8..dccf69ce863c 100644
--- a/kernel/rcu/tree.h
+++ b/kernel/rcu/tree.h
@@ -24,6 +24,7 @@
#include <linux/cache.h>
#include <linux/spinlock.h>
+#include <linux/rtmutex.h>
#include <linux/threads.h>
#include <linux/cpumask.h>
#include <linux/seqlock.h>
--
2.7.4
^ permalink raw reply related [flat|nested] 119+ messages in thread
* [PATCH 39/89] sched/headers: Remove various unrelated headers from <linux/sched.h>
2017-02-06 13:28 [PATCH 00/89] Major reorganization of <linux/sched.h> Ingo Molnar
` (37 preceding siblings ...)
2017-02-06 13:28 ` [PATCH 38/89] sched/headers: Remove <linux/rtmutex.h> " Ingo Molnar
@ 2017-02-06 13:28 ` Ingo Molnar
2017-02-06 13:28 ` [PATCH 40/89] sched/headers: Move CONFIG_TASK_XACCT bits out of <linux/sched.h> into <linux/sched/xacct.h> Ingo Molnar
` (51 subsequent siblings)
90 siblings, 0 replies; 119+ messages in thread
From: Ingo Molnar @ 2017-02-06 13:28 UTC (permalink / raw)
To: linux-kernel
Cc: Andrew Morton, Linus Torvalds, Mike Galbraith, Oleg Nesterov,
Peter Zijlstra, Thomas Gleixner
Remove the following header inclusions from <linux/sched.h>:
#include <asm/param.h>
#include <linux/threads.h>
#include <linux/kernel.h>
#include <linux/types.h>
#include <linux/timex.h>
#include <linux/jiffies.h>
#include <linux/rbtree.h>
#include <linux/thread_info.h>
#include <linux/cpumask.h>
#include <linux/errno.h>
#include <linux/nodemask.h>
#include <linux/preempt.h>
#include <asm/page.h>
#include <linux/smp.h>
#include <linux/compiler.h>
#include <linux/completion.h>
#include <linux/percpu.h>
#include <linux/topology.h>
#include <linux/rcupdate.h>
#include <linux/time.h>
#include <linux/timer.h>
#include <linux/llist.h>
#include <linux/uidgid.h>
#include <asm/processor.h>
because they are either not required, or are already included
naturally as part of the remaining headers.
( Fix up a single .c file that got hold of <linux/sysctl.h> via one
of these headers. )
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
include/linux/sched.h | 28 ----------------------------
include/linux/user_namespace.h | 1 +
2 files changed, 1 insertion(+), 28 deletions(-)
diff --git a/include/linux/sched.h b/include/linux/sched.h
index 9ba2f75dc4c2..e3de6ad359fc 100644
--- a/include/linux/sched.h
+++ b/include/linux/sched.h
@@ -5,52 +5,24 @@
#include <linux/sched/prio.h>
-#include <asm/param.h> /* for HZ */
-
-#include <linux/threads.h>
-#include <linux/kernel.h>
-#include <linux/types.h>
-#include <linux/timex.h>
-#include <linux/jiffies.h>
#include <linux/plist.h>
-#include <linux/rbtree.h>
-#include <linux/thread_info.h>
-#include <linux/cpumask.h>
-#include <linux/errno.h>
-#include <linux/nodemask.h>
#include <linux/mm_types.h>
-#include <linux/preempt.h>
-
-#include <asm/page.h>
-#include <linux/smp.h>
#include <linux/sem.h>
#include <linux/shm.h>
#include <linux/signal.h>
-#include <linux/compiler.h>
-#include <linux/completion.h>
#include <linux/pid.h>
-#include <linux/percpu.h>
-#include <linux/topology.h>
#include <linux/seccomp.h>
-#include <linux/rcupdate.h>
#include <linux/rculist.h>
-#include <linux/time.h>
-#include <linux/param.h>
#include <linux/resource.h>
-#include <linux/timer.h>
#include <linux/hrtimer.h>
#include <linux/kcov.h>
#include <linux/task_io_accounting.h>
#include <linux/latencytop.h>
-#include <linux/llist.h>
-#include <linux/uidgid.h>
#include <linux/gfp.h>
#include <linux/magic.h>
-#include <asm/processor.h>
-
struct sched_attr;
struct sched_param;
diff --git a/include/linux/user_namespace.h b/include/linux/user_namespace.h
index eb209d4523f5..746ee376e603 100644
--- a/include/linux/user_namespace.h
+++ b/include/linux/user_namespace.h
@@ -5,6 +5,7 @@
#include <linux/nsproxy.h>
#include <linux/ns_common.h>
#include <linux/sched.h>
+#include <linux/sysctl.h>
#include <linux/err.h>
#define UID_GID_MAP_MAX_EXTENTS 5
--
2.7.4
^ permalink raw reply related [flat|nested] 119+ messages in thread
* [PATCH 40/89] sched/headers: Move CONFIG_TASK_XACCT bits out of <linux/sched.h> into <linux/sched/xacct.h>
2017-02-06 13:28 [PATCH 00/89] Major reorganization of <linux/sched.h> Ingo Molnar
` (38 preceding siblings ...)
2017-02-06 13:28 ` [PATCH 39/89] sched/headers: Remove various unrelated headers " Ingo Molnar
@ 2017-02-06 13:28 ` Ingo Molnar
2017-02-06 13:28 ` [PATCH 41/89] sched/headers: Move signal wakeup & sigpending methods from <linux/sched.h> into <linux/sched/signal.h> Ingo Molnar
` (50 subsequent siblings)
90 siblings, 0 replies; 119+ messages in thread
From: Ingo Molnar @ 2017-02-06 13:28 UTC (permalink / raw)
To: linux-kernel
Cc: Andrew Morton, Linus Torvalds, Mike Galbraith, Oleg Nesterov,
Peter Zijlstra, Thomas Gleixner
The CONFIG_TASK_XACCT accounting inline functions are only used by
fs/read_write.c, so move them into a separate header.
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
fs/read_write.c | 3 ++-
include/linux/sched.h | 38 --------------------------------------
include/linux/sched/xacct.h | 48 ++++++++++++++++++++++++++++++++++++++++++++++++
3 files changed, 50 insertions(+), 39 deletions(-)
diff --git a/fs/read_write.c b/fs/read_write.c
index 5816d4c4cab0..dc60075653a8 100644
--- a/fs/read_write.c
+++ b/fs/read_write.c
@@ -4,8 +4,9 @@
* Copyright (C) 1991, 1992 Linus Torvalds
*/
-#include <linux/slab.h>
+#include <linux/slab.h>
#include <linux/stat.h>
+#include <linux/sched/xacct.h>
#include <linux/fcntl.h>
#include <linux/file.h>
#include <linux/uio.h>
diff --git a/include/linux/sched.h b/include/linux/sched.h
index e3de6ad359fc..0f5cf0760341 100644
--- a/include/linux/sched.h
+++ b/include/linux/sched.h
@@ -2110,44 +2110,6 @@ extern long sched_getaffinity(pid_t pid, struct cpumask *mask);
extern struct task_group root_task_group;
#endif /* CONFIG_CGROUP_SCHED */
-#ifdef CONFIG_TASK_XACCT
-static inline void add_rchar(struct task_struct *tsk, ssize_t amt)
-{
- tsk->ioac.rchar += amt;
-}
-
-static inline void add_wchar(struct task_struct *tsk, ssize_t amt)
-{
- tsk->ioac.wchar += amt;
-}
-
-static inline void inc_syscr(struct task_struct *tsk)
-{
- tsk->ioac.syscr++;
-}
-
-static inline void inc_syscw(struct task_struct *tsk)
-{
- tsk->ioac.syscw++;
-}
-#else
-static inline void add_rchar(struct task_struct *tsk, ssize_t amt)
-{
-}
-
-static inline void add_wchar(struct task_struct *tsk, ssize_t amt)
-{
-}
-
-static inline void inc_syscr(struct task_struct *tsk)
-{
-}
-
-static inline void inc_syscw(struct task_struct *tsk)
-{
-}
-#endif
-
#ifndef TASK_SIZE_OF
#define TASK_SIZE_OF(tsk) TASK_SIZE
#endif
diff --git a/include/linux/sched/xacct.h b/include/linux/sched/xacct.h
new file mode 100644
index 000000000000..a28156a0d34a
--- /dev/null
+++ b/include/linux/sched/xacct.h
@@ -0,0 +1,48 @@
+#ifndef _LINUX_SCHED_XACCT_H
+#define _LINUX_SCHED_XACCT_H
+
+/*
+ * Extended task accounting methods:
+ */
+
+#include <linux/sched.h>
+
+#ifdef CONFIG_TASK_XACCT
+static inline void add_rchar(struct task_struct *tsk, ssize_t amt)
+{
+ tsk->ioac.rchar += amt;
+}
+
+static inline void add_wchar(struct task_struct *tsk, ssize_t amt)
+{
+ tsk->ioac.wchar += amt;
+}
+
+static inline void inc_syscr(struct task_struct *tsk)
+{
+ tsk->ioac.syscr++;
+}
+
+static inline void inc_syscw(struct task_struct *tsk)
+{
+ tsk->ioac.syscw++;
+}
+#else
+static inline void add_rchar(struct task_struct *tsk, ssize_t amt)
+{
+}
+
+static inline void add_wchar(struct task_struct *tsk, ssize_t amt)
+{
+}
+
+static inline void inc_syscr(struct task_struct *tsk)
+{
+}
+
+static inline void inc_syscw(struct task_struct *tsk)
+{
+}
+#endif
+
+#endif /* _LINUX_SCHED_XACCT_H */
--
2.7.4
^ permalink raw reply related [flat|nested] 119+ messages in thread
* [PATCH 41/89] sched/headers: Move signal wakeup & sigpending methods from <linux/sched.h> into <linux/sched/signal.h>
2017-02-06 13:28 [PATCH 00/89] Major reorganization of <linux/sched.h> Ingo Molnar
` (39 preceding siblings ...)
2017-02-06 13:28 ` [PATCH 40/89] sched/headers: Move CONFIG_TASK_XACCT bits out of <linux/sched.h> into <linux/sched/xacct.h> Ingo Molnar
@ 2017-02-06 13:28 ` Ingo Molnar
2017-02-06 13:28 ` [PATCH 42/89] sched/headers: Move the memalloc_noio_*() APIs to <linux/sched/mm.h> Ingo Molnar
` (49 subsequent siblings)
90 siblings, 0 replies; 119+ messages in thread
From: Ingo Molnar @ 2017-02-06 13:28 UTC (permalink / raw)
To: linux-kernel
Cc: Andrew Morton, Linus Torvalds, Mike Galbraith, Oleg Nesterov,
Peter Zijlstra, Thomas Gleixner
... and fix up affected files that only incidentally included the signal functionality.
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
arch/arm/common/bL_switcher.c | 2 +-
arch/cris/arch-v10/drivers/sync_serial.c | 2 +-
arch/cris/arch-v32/drivers/sync_serial.c | 2 +-
arch/mips/kernel/rtlx.c | 2 ++
arch/mips/kvm/mips.c | 2 ++
arch/powerpc/kvm/book3s_hv.c | 2 +-
arch/powerpc/kvm/powerpc.c | 1 +
arch/powerpc/platforms/83xx/suspend.c | 1 +
arch/powerpc/platforms/cell/spufs/sched.c | 2 +-
arch/powerpc/platforms/cell/spufs/spufs.h | 1 +
arch/s390/crypto/prng.c | 2 ++
arch/s390/kvm/kvm-s390.c | 2 ++
arch/s390/kvm/vsie.c | 2 ++
arch/sh/kernel/cpu/fpu.c | 2 +-
arch/sh/kernel/disassemble.c | 2 ++
arch/sh/kernel/process.c | 2 +-
arch/um/drivers/random.c | 2 +-
arch/x86/kernel/apm_32.c | 2 +-
block/blk-cgroup.c | 1 +
block/blk-mq.c | 1 +
crypto/algboss.c | 2 +-
crypto/algif_aead.c | 1 +
crypto/algif_skcipher.c | 1 +
crypto/api.c | 2 +-
drivers/atm/horizon.c | 1 +
drivers/base/core.c | 1 +
drivers/base/power/wakeup.c | 2 +-
drivers/block/drbd/drbd_main.c | 1 +
drivers/block/drbd/drbd_receiver.c | 1 +
drivers/block/drbd/drbd_worker.c | 2 +-
drivers/block/swim3.c | 2 +-
drivers/char/applicom.c | 2 +-
drivers/char/hpet.c | 1 +
drivers/char/hw_random/core.c | 1 +
drivers/char/ipmi/ipmi_watchdog.c | 1 +
drivers/char/lp.c | 2 +-
drivers/char/ppdev.c | 2 +-
drivers/char/rtc.c | 2 +-
drivers/char/snsc.c | 2 +-
drivers/dma-buf/dma-fence.c | 1 +
drivers/gpu/drm/omapdrm/displays/panel-dsi-cm.c | 2 +-
drivers/gpu/drm/vc4/vc4_gem.c | 1 +
drivers/gpu/vga/vgaarb.c | 2 +-
drivers/hid/hid-debug.c | 2 +-
drivers/hid/hid-roccat.c | 2 +-
drivers/hid/hidraw.c | 2 +-
drivers/hid/usbhid/hiddev.c | 1 +
drivers/hsi/clients/cmt_speech.c | 2 +-
drivers/i2c/busses/i2c-ibm_iic.c | 2 ++
drivers/i2c/busses/i2c-mpc.c | 2 +-
drivers/iio/industrialio-buffer.c | 2 +-
drivers/infiniband/ulp/ipoib/ipoib_cm.c | 1 +
drivers/infiniband/ulp/ipoib/ipoib_vlan.c | 1 +
drivers/isdn/capi/kcapi.c | 2 +-
drivers/isdn/mISDN/timerdev.c | 2 ++
drivers/lguest/core.c | 1 +
drivers/macintosh/adb.c | 2 +-
drivers/macintosh/smu.c | 1 +
drivers/macintosh/via-pmu.c | 2 +-
drivers/mailbox/mailbox-test.c | 1 +
drivers/md/dm.c | 1 +
drivers/media/dvb-core/dvb_ca_en50221.c | 2 +-
drivers/media/dvb-core/dvb_demux.c | 2 +-
drivers/media/dvb-core/dvb_frontend.c | 2 +-
drivers/media/pci/cx18/cx18-driver.h | 2 +-
drivers/media/pci/ivtv/ivtv-driver.h | 2 +-
drivers/media/pci/pt1/pt1.c | 1 +
drivers/media/pci/pt3/pt3.c | 1 +
drivers/media/pci/solo6x10/solo6x10-i2c.c | 1 +
drivers/media/pci/zoran/zoran_device.c | 1 +
drivers/media/platform/vivid/vivid-radio-rx.c | 2 ++
drivers/media/platform/vivid/vivid-radio-tx.c | 1 +
drivers/media/rc/lirc_dev.c | 2 +-
drivers/media/usb/cpia2/cpia2_core.c | 1 +
drivers/media/usb/gspca/cpia1.c | 2 ++
drivers/misc/cxl/fault.c | 2 +-
drivers/misc/cxl/file.c | 2 +-
drivers/misc/ibmasm/r_heartbeat.c | 2 +-
drivers/misc/lis3lv02d/lis3lv02d.c | 1 +
drivers/misc/mei/bus.c | 2 +-
drivers/misc/mei/client.c | 2 +-
drivers/misc/mei/main.c | 2 +-
drivers/misc/mic/scif/scif_main.h | 2 +-
drivers/misc/vexpress-syscfg.c | 2 +-
drivers/mtd/tests/mtd_test.h | 2 +-
drivers/net/bonding/bond_options.c | 2 ++
drivers/net/bonding/bond_sysfs.c | 2 +-
drivers/net/can/softing/softing_fw.c | 2 +-
drivers/net/ethernet/broadcom/tg3.c | 1 +
drivers/net/ethernet/cavium/liquidio/octeon_main.h | 2 ++
drivers/net/ethernet/sfc/falcon/falcon.c | 2 ++
drivers/net/irda/stir4200.c | 1 +
drivers/net/macvtap.c | 2 +-
drivers/net/ppp/ppp_generic.c | 1 +
drivers/net/tun.c | 1 +
drivers/net/usb/hso.c | 2 +-
drivers/net/usb/qmi_wwan.c | 1 +
drivers/net/wan/cosa.c | 2 +-
drivers/net/wireless/ath/ath6kl/cfg80211.c | 1 +
drivers/net/wireless/broadcom/b43legacy/main.c | 2 +-
drivers/net/wireless/intersil/hostap/hostap_hw.c | 2 +-
drivers/net/wireless/intersil/hostap/hostap_ioctl.c | 2 +-
drivers/oprofile/event_buffer.c | 2 +-
drivers/parport/daisy.c | 2 +-
drivers/parport/ieee1284.c | 2 +-
drivers/parport/ieee1284_ops.c | 2 +-
drivers/parport/parport_ip32.c | 2 +-
drivers/parport/parport_pc.c | 2 +-
drivers/parport/share.c | 2 +-
drivers/pci/access.c | 2 +-
drivers/pci/hotplug/cpci_hotplug_core.c | 1 +
drivers/pci/hotplug/cpqphp.h | 2 +-
drivers/pci/hotplug/pciehp.h | 2 +-
drivers/pci/hotplug/shpchp.h | 2 +-
drivers/rtc/rtc-dev.c | 2 +-
drivers/s390/cio/device.c | 1 +
drivers/scsi/lpfc/lpfc_vport.c | 1 +
drivers/scsi/osst.c | 2 +-
drivers/scsi/st.c | 2 +-
drivers/soc/fsl/qbman/dpaa_sys.h | 1 +
drivers/staging/comedi/comedi_fops.c | 2 +-
drivers/staging/dgnc/dgnc_tty.c | 2 +-
drivers/staging/dgnc/dgnc_utils.c | 2 +-
drivers/staging/greybus/uart.c | 2 +-
drivers/staging/lustre/lustre/include/lustre/lustre_user.h | 1 +
drivers/staging/lustre/lustre/include/lustre_lib.h | 2 +-
drivers/staging/lustre/lustre/include/obd_support.h | 2 ++
drivers/staging/media/lirc/lirc_parallel.c | 2 +-
drivers/staging/media/lirc/lirc_sir.c | 2 +-
drivers/staging/media/lirc/lirc_zilog.c | 2 +-
drivers/staging/speakup/speakup_soft.c | 2 +-
drivers/target/iscsi/cxgbit/cxgbit_target.c | 2 ++
drivers/tty/n_gsm.c | 2 +-
drivers/tty/serial/crisv10.c | 2 +-
drivers/tty/serial/serial_core.c | 1 +
drivers/tty/tty_ioctl.c | 2 +-
drivers/tty/tty_port.c | 2 +-
drivers/uio/uio.c | 2 +-
drivers/usb/class/cdc-acm.c | 1 +
drivers/usb/class/usblp.c | 2 +-
drivers/usb/gadget/function/f_fs.c | 1 +
drivers/usb/image/mdc800.c | 2 +-
drivers/usb/misc/adutux.c | 1 +
drivers/usb/misc/idmouse.c | 1 +
drivers/usb/misc/rio500.c | 2 +-
drivers/usb/misc/uss720.c | 1 +
drivers/usb/mon/mon_bin.c | 1 +
drivers/usb/mon/mon_text.c | 1 +
drivers/usb/serial/digi_acceleport.c | 1 +
drivers/usb/serial/generic.c | 1 +
drivers/vhost/net.c | 1 +
drivers/vhost/vhost.c | 1 +
drivers/video/fbdev/cobalt_lcdfb.c | 1 +
drivers/video/fbdev/omap2/omapfb/displays/panel-dsi-cm.c | 2 +-
fs/afs/rxrpc.c | 2 ++
fs/aio.c | 2 +-
fs/btrfs/ctree.h | 1 +
fs/ceph/caps.c | 2 +-
fs/cifs/inode.c | 2 ++
fs/coda/psdev.c | 2 +-
fs/dlm/user.c | 1 +
fs/ecryptfs/read_write.c | 2 ++
fs/eventfd.c | 2 +-
fs/eventpoll.c | 2 +-
fs/ext4/ext4.h | 1 +
fs/f2fs/data.c | 1 +
fs/fuse/dev.c | 1 +
fs/gfs2/lock_dlm.c | 1 +
fs/gfs2/super.c | 2 +-
fs/hpfs/hpfs_fn.h | 2 +-
fs/hugetlbfs/inode.c | 2 +-
fs/jffs2/nodemgmt.c | 2 +-
fs/nfs/inode.c | 2 +-
fs/nilfs2/segment.c | 2 ++
fs/notify/fanotify/fanotify_user.c | 1 +
fs/notify/inotify/inotify_user.c | 2 +-
fs/ntfs/file.c | 2 +-
fs/ocfs2/alloc.c | 1 +
fs/ocfs2/dlm/dlmdomain.c | 1 +
fs/ocfs2/dlmfs/userdlm.c | 1 +
fs/ocfs2/dlmglue.c | 1 +
fs/orangefs/orangefs-kernel.h | 2 +-
fs/overlayfs/copy_up.c | 2 +-
fs/splice.c | 2 ++
fs/userfaultfd.c | 2 +-
fs/xfs/xfs_linux.h | 2 +-
include/drm/drm_os_linux.h | 1 +
include/linux/sched.h | 51 --------------------------------
include/linux/sched/signal.h | 53 +++++++++++++++++++++++++++++++++-
include/linux/sunrpc/types.h | 1 +
include/media/v4l2-ioctl.h | 1 +
include/net/busy_poll.h | 1 +
kernel/locking/mutex.c | 2 +-
kernel/locking/rtmutex.c | 2 +-
kernel/locking/rwsem-spinlock.c | 2 +-
kernel/locking/rwsem-xadd.c | 2 +-
kernel/rcu/rcutorture.c | 2 +-
kernel/sched/completion.c | 2 +-
kernel/sched/swait.c | 2 +-
kernel/sched/wait.c | 2 +-
kernel/time/alarmtimer.c | 1 +
kernel/time/hrtimer.c | 2 +-
kernel/time/timer.c | 2 +-
lib/percpu_ida.c | 2 +-
mm/compaction.c | 1 +
mm/gup.c | 2 +-
mm/hugetlb.c | 1 +
mm/memory_hotplug.c | 1 +
mm/shmem.c | 1 +
mm/userfaultfd.c | 1 +
net/atm/svc.c | 2 +-
net/bluetooth/af_bluetooth.c | 2 ++
net/bluetooth/cmtp/capi.c | 2 +-
net/bluetooth/hci_request.c | 2 ++
net/bluetooth/l2cap_sock.c | 1 +
net/bluetooth/rfcomm/sock.c | 1 +
net/bluetooth/sco.c | 1 +
net/bridge/br_sysfs_br.c | 1 +
net/bridge/br_sysfs_if.c | 1 +
net/core/ethtool.c | 2 +-
net/core/net-sysfs.c | 1 +
net/dccp/output.c | 1 +
net/ipv4/devinet.c | 1 +
net/ipv6/addrconf.c | 1 +
net/irda/ircomm/ircomm_tty.c | 2 +-
net/irda/irnet/irnet_ppp.c | 3 +-
net/iucv/af_iucv.c | 2 +-
net/kcm/kcmsock.c | 2 ++
net/llc/af_llc.c | 2 ++
net/nfc/llcp_sock.c | 1 +
net/phonet/pep.c | 1 +
net/phonet/socket.c | 2 ++
net/rxrpc/conn_client.c | 2 ++
net/rxrpc/recvmsg.c | 2 ++
net/rxrpc/sendmsg.c | 2 ++
net/tipc/socket.c | 2 ++
net/vmw_vsock/af_vsock.c | 1 +
net/vmw_vsock/virtio_transport_common.c | 1 +
sound/core/control.c | 1 +
sound/core/hwdep.c | 1 +
sound/core/oss/pcm_oss.c | 1 +
sound/core/pcm_lib.c | 1 +
sound/core/pcm_native.c | 1 +
sound/core/rawmidi.c | 2 +-
sound/core/seq/oss/seq_oss_device.h | 2 +-
sound/core/seq/oss/seq_oss_writeq.c | 1 +
sound/core/seq/seq_fifo.c | 2 ++
sound/core/seq/seq_memory.c | 1 +
sound/core/timer.c | 1 +
sound/firewire/bebob/bebob.h | 1 +
sound/firewire/dice/dice.h | 1 +
sound/firewire/digi00x/digi00x.h | 1 +
sound/firewire/fireworks/fireworks.h | 1 +
sound/firewire/oxfw/oxfw.h | 1 +
sound/firewire/tascam/tascam.h | 1 +
sound/isa/gus/gus_pcm.c | 2 ++
sound/isa/msnd/msnd.c | 1 +
sound/isa/sb/emu8000.c | 2 +-
sound/isa/sb/emu8000_patch.c | 2 ++
sound/isa/sb/emu8000_pcm.c | 2 ++
sound/isa/wavefront/wavefront_synth.c | 1 +
sound/oss/dmabuf.c | 2 ++
sound/oss/dmasound/dmasound_core.c | 1 +
sound/oss/midibuf.c | 2 ++
sound/oss/msnd_pinnacle.c | 2 ++
sound/oss/sound_config.h | 1 +
sound/oss/swarm_cs4297a.c | 2 +-
virt/kvm/kvm_main.c | 2 +-
268 files changed, 355 insertions(+), 176 deletions(-)
diff --git a/arch/arm/common/bL_switcher.c b/arch/arm/common/bL_switcher.c
index c70c9a5f2a31..e656d1a87772 100644
--- a/arch/arm/common/bL_switcher.c
+++ b/arch/arm/common/bL_switcher.c
@@ -12,7 +12,7 @@
#include <linux/init.h>
#include <linux/kernel.h>
#include <linux/module.h>
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
#include <uapi/linux/sched/types.h>
#include <linux/interrupt.h>
#include <linux/cpu_pm.h>
diff --git a/arch/cris/arch-v10/drivers/sync_serial.c b/arch/cris/arch-v10/drivers/sync_serial.c
index 9ac75d68f184..cc62572c1b94 100644
--- a/arch/cris/arch-v10/drivers/sync_serial.c
+++ b/arch/cris/arch-v10/drivers/sync_serial.c
@@ -16,7 +16,7 @@
#include <linux/types.h>
#include <linux/errno.h>
#include <linux/major.h>
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
#include <linux/interrupt.h>
#include <linux/poll.h>
#include <linux/init.h>
diff --git a/arch/cris/arch-v32/drivers/sync_serial.c b/arch/cris/arch-v32/drivers/sync_serial.c
index ef515af1a377..8efcc1a899a8 100644
--- a/arch/cris/arch-v32/drivers/sync_serial.c
+++ b/arch/cris/arch-v32/drivers/sync_serial.c
@@ -11,7 +11,7 @@
#include <linux/types.h>
#include <linux/errno.h>
#include <linux/major.h>
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
#include <linux/mutex.h>
#include <linux/interrupt.h>
#include <linux/poll.h>
diff --git a/arch/mips/kernel/rtlx.c b/arch/mips/kernel/rtlx.c
index c5c4fd54d797..b80dd8b17a76 100644
--- a/arch/mips/kernel/rtlx.c
+++ b/arch/mips/kernel/rtlx.c
@@ -12,6 +12,8 @@
#include <linux/syscalls.h>
#include <linux/moduleloader.h>
#include <linux/atomic.h>
+#include <linux/sched/signal.h>
+
#include <asm/mipsmtregs.h>
#include <asm/mips_mt.h>
#include <asm/processor.h>
diff --git a/arch/mips/kvm/mips.c b/arch/mips/kvm/mips.c
index 29ec9ab3fd55..c7192d50d8d9 100644
--- a/arch/mips/kvm/mips.c
+++ b/arch/mips/kvm/mips.c
@@ -16,8 +16,10 @@
#include <linux/module.h>
#include <linux/uaccess.h>
#include <linux/vmalloc.h>
+#include <linux/sched/signal.h>
#include <linux/fs.h>
#include <linux/bootmem.h>
+
#include <asm/fpu.h>
#include <asm/page.h>
#include <asm/cacheflush.h>
diff --git a/arch/powerpc/kvm/book3s_hv.c b/arch/powerpc/kvm/book3s_hv.c
index ec34e39471a7..81f0d14b545c 100644
--- a/arch/powerpc/kvm/book3s_hv.c
+++ b/arch/powerpc/kvm/book3s_hv.c
@@ -22,7 +22,7 @@
#include <linux/err.h>
#include <linux/slab.h>
#include <linux/preempt.h>
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
#include <linux/delay.h>
#include <linux/export.h>
#include <linux/fs.h>
diff --git a/arch/powerpc/kvm/powerpc.c b/arch/powerpc/kvm/powerpc.c
index cd892dec7cb6..37c0ecb19aa2 100644
--- a/arch/powerpc/kvm/powerpc.c
+++ b/arch/powerpc/kvm/powerpc.c
@@ -23,6 +23,7 @@
#include <linux/kvm_host.h>
#include <linux/vmalloc.h>
#include <linux/hrtimer.h>
+#include <linux/sched/signal.h>
#include <linux/fs.h>
#include <linux/slab.h>
#include <linux/file.h>
diff --git a/arch/powerpc/platforms/83xx/suspend.c b/arch/powerpc/platforms/83xx/suspend.c
index 08f92f6ed228..978b85bb3233 100644
--- a/arch/powerpc/platforms/83xx/suspend.c
+++ b/arch/powerpc/platforms/83xx/suspend.c
@@ -15,6 +15,7 @@
#include <linux/ioport.h>
#include <linux/interrupt.h>
#include <linux/wait.h>
+#include <linux/sched/signal.h>
#include <linux/kthread.h>
#include <linux/freezer.h>
#include <linux/suspend.h>
diff --git a/arch/powerpc/platforms/cell/spufs/sched.c b/arch/powerpc/platforms/cell/spufs/sched.c
index c4cd6eb25b69..ff8f00839638 100644
--- a/arch/powerpc/platforms/cell/spufs/sched.c
+++ b/arch/powerpc/platforms/cell/spufs/sched.c
@@ -23,7 +23,7 @@
#undef DEBUG
#include <linux/errno.h>
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
#include <linux/sched/loadavg.h>
#include <linux/sched/rt.h>
#include <linux/kernel.h>
diff --git a/arch/powerpc/platforms/cell/spufs/spufs.h b/arch/powerpc/platforms/cell/spufs/spufs.h
index bcfd6f063efa..df6e0f7945ef 100644
--- a/arch/powerpc/platforms/cell/spufs/spufs.h
+++ b/arch/powerpc/platforms/cell/spufs/spufs.h
@@ -27,6 +27,7 @@
#include <linux/spinlock.h>
#include <linux/fs.h>
#include <linux/cpumask.h>
+#include <linux/sched/signal.h>
#include <asm/spu.h>
#include <asm/spu_csa.h>
diff --git a/arch/s390/crypto/prng.c b/arch/s390/crypto/prng.c
index daf9bb063aaa..cc0cd67ffb22 100644
--- a/arch/s390/crypto/prng.c
+++ b/arch/s390/crypto/prng.c
@@ -20,6 +20,8 @@
#include <linux/cpufeature.h>
#include <linux/random.h>
#include <linux/slab.h>
+#include <linux/sched/signal.h>
+
#include <asm/debug.h>
#include <linux/uaccess.h>
#include <asm/timex.h>
diff --git a/arch/s390/kvm/kvm-s390.c b/arch/s390/kvm/kvm-s390.c
index 6484a250021e..649234afa6b4 100644
--- a/arch/s390/kvm/kvm-s390.c
+++ b/arch/s390/kvm/kvm-s390.c
@@ -28,6 +28,8 @@
#include <linux/timer.h>
#include <linux/vmalloc.h>
#include <linux/bitmap.h>
+#include <linux/sched/signal.h>
+
#include <asm/asm-offsets.h>
#include <asm/lowcore.h>
#include <asm/stp.h>
diff --git a/arch/s390/kvm/vsie.c b/arch/s390/kvm/vsie.c
index d8673e243f13..55b0c63334cf 100644
--- a/arch/s390/kvm/vsie.c
+++ b/arch/s390/kvm/vsie.c
@@ -14,6 +14,8 @@
#include <linux/bug.h>
#include <linux/list.h>
#include <linux/bitmap.h>
+#include <linux/sched/signal.h>
+
#include <asm/gmap.h>
#include <asm/mmu_context.h>
#include <asm/sclp.h>
diff --git a/arch/sh/kernel/cpu/fpu.c b/arch/sh/kernel/cpu/fpu.c
index 4d4737d099c6..37e35330aae6 100644
--- a/arch/sh/kernel/cpu/fpu.c
+++ b/arch/sh/kernel/cpu/fpu.c
@@ -1,4 +1,4 @@
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
#include <linux/slab.h>
#include <asm/processor.h>
#include <asm/fpu.h>
diff --git a/arch/sh/kernel/disassemble.c b/arch/sh/kernel/disassemble.c
index 64d5d8dded7c..015fee58014b 100644
--- a/arch/sh/kernel/disassemble.c
+++ b/arch/sh/kernel/disassemble.c
@@ -12,6 +12,8 @@
#include <linux/string.h>
#include <linux/uaccess.h>
+#include <asm/ptrace.h>
+
/*
* Format of an instruction in memory.
*/
diff --git a/arch/sh/kernel/process.c b/arch/sh/kernel/process.c
index 30bff33e810e..80a61c5e3015 100644
--- a/arch/sh/kernel/process.c
+++ b/arch/sh/kernel/process.c
@@ -1,7 +1,7 @@
#include <linux/mm.h>
#include <linux/kernel.h>
#include <linux/slab.h>
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
#include <linux/export.h>
#include <linux/stackprotector.h>
#include <asm/fpu.h>
diff --git a/arch/um/drivers/random.c b/arch/um/drivers/random.c
index 57f03050c850..37c51a6be690 100644
--- a/arch/um/drivers/random.c
+++ b/arch/um/drivers/random.c
@@ -6,7 +6,7 @@
* This software may be used and distributed according to the terms
* of the GNU General Public License, incorporated herein by reference.
*/
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
#include <linux/module.h>
#include <linux/fs.h>
#include <linux/interrupt.h>
diff --git a/arch/x86/kernel/apm_32.c b/arch/x86/kernel/apm_32.c
index 4a7080c84a5a..dc04b30cbd60 100644
--- a/arch/x86/kernel/apm_32.c
+++ b/arch/x86/kernel/apm_32.c
@@ -218,7 +218,7 @@
#include <linux/apm_bios.h>
#include <linux/init.h>
#include <linux/time.h>
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
#include <linux/pm.h>
#include <linux/capability.h>
#include <linux/device.h>
diff --git a/block/blk-cgroup.c b/block/blk-cgroup.c
index 8ba0af780e88..ee0a585c6e82 100644
--- a/block/blk-cgroup.c
+++ b/block/blk-cgroup.c
@@ -17,6 +17,7 @@
#include <linux/ioprio.h>
#include <linux/kdev_t.h>
#include <linux/module.h>
+#include <linux/sched/signal.h>
#include <linux/err.h>
#include <linux/blkdev.h>
#include <linux/backing-dev.h>
diff --git a/block/blk-mq.c b/block/blk-mq.c
index 92bf48dac06f..34a9e074b8e4 100644
--- a/block/blk-mq.c
+++ b/block/blk-mq.c
@@ -21,6 +21,7 @@
#include <linux/cache.h>
#include <linux/sched/sysctl.h>
#include <linux/sched/topology.h>
+#include <linux/sched/signal.h>
#include <linux/delay.h>
#include <linux/crash_dump.h>
#include <linux/prefetch.h>
diff --git a/crypto/algboss.c b/crypto/algboss.c
index ccb85e1798f2..960d8548171b 100644
--- a/crypto/algboss.c
+++ b/crypto/algboss.c
@@ -19,7 +19,7 @@
#include <linux/module.h>
#include <linux/notifier.h>
#include <linux/rtnetlink.h>
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
#include <linux/slab.h>
#include <linux/string.h>
diff --git a/crypto/algif_aead.c b/crypto/algif_aead.c
index f849311e9fd4..6697b27f0873 100644
--- a/crypto/algif_aead.c
+++ b/crypto/algif_aead.c
@@ -19,6 +19,7 @@
#include <linux/init.h>
#include <linux/list.h>
#include <linux/kernel.h>
+#include <linux/sched/signal.h>
#include <linux/mm.h>
#include <linux/module.h>
#include <linux/net.h>
diff --git a/crypto/algif_skcipher.c b/crypto/algif_skcipher.c
index a9e79d8eff87..43839b00fe6c 100644
--- a/crypto/algif_skcipher.c
+++ b/crypto/algif_skcipher.c
@@ -18,6 +18,7 @@
#include <linux/init.h>
#include <linux/list.h>
#include <linux/kernel.h>
+#include <linux/sched/signal.h>
#include <linux/mm.h>
#include <linux/module.h>
#include <linux/net.h>
diff --git a/crypto/api.c b/crypto/api.c
index b16ce1653284..941cd4c6c7ec 100644
--- a/crypto/api.c
+++ b/crypto/api.c
@@ -21,7 +21,7 @@
#include <linux/kmod.h>
#include <linux/module.h>
#include <linux/param.h>
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
#include <linux/slab.h>
#include <linux/string.h>
#include "internal.h"
diff --git a/drivers/atm/horizon.c b/drivers/atm/horizon.c
index 584aa881882b..aaf210db6230 100644
--- a/drivers/atm/horizon.c
+++ b/drivers/atm/horizon.c
@@ -27,6 +27,7 @@
#include <linux/module.h>
#include <linux/kernel.h>
+#include <linux/sched/signal.h>
#include <linux/mm.h>
#include <linux/pci.h>
#include <linux/errno.h>
diff --git a/drivers/base/core.c b/drivers/base/core.c
index 8c25e68e67d7..6bb60fb6a30b 100644
--- a/drivers/base/core.c
+++ b/drivers/base/core.c
@@ -26,6 +26,7 @@
#include <linux/mutex.h>
#include <linux/pm_runtime.h>
#include <linux/netdevice.h>
+#include <linux/sched/signal.h>
#include <linux/sysfs.h>
#include "base.h"
diff --git a/drivers/base/power/wakeup.c b/drivers/base/power/wakeup.c
index f546f8f107b0..136854970489 100644
--- a/drivers/base/power/wakeup.c
+++ b/drivers/base/power/wakeup.c
@@ -8,7 +8,7 @@
#include <linux/device.h>
#include <linux/slab.h>
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
#include <linux/capability.h>
#include <linux/export.h>
#include <linux/suspend.h>
diff --git a/drivers/block/drbd/drbd_main.c b/drivers/block/drbd/drbd_main.c
index c3ff60c30dde..d3e6d90d0c0a 100644
--- a/drivers/block/drbd/drbd_main.c
+++ b/drivers/block/drbd/drbd_main.c
@@ -52,6 +52,7 @@
#define __KERNEL_SYSCALLS__
#include <linux/unistd.h>
#include <linux/vmalloc.h>
+#include <linux/sched/signal.h>
#include <linux/drbd_limits.h>
#include "drbd_int.h"
diff --git a/drivers/block/drbd/drbd_receiver.c b/drivers/block/drbd/drbd_receiver.c
index 2f381be03517..ae5458f51ad3 100644
--- a/drivers/block/drbd/drbd_receiver.c
+++ b/drivers/block/drbd/drbd_receiver.c
@@ -35,6 +35,7 @@
#include <linux/mm_inline.h>
#include <linux/slab.h>
#include <uapi/linux/sched/types.h>
+#include <linux/sched/signal.h>
#include <linux/pkt_sched.h>
#define __KERNEL_SYSCALLS__
#include <linux/unistd.h>
diff --git a/drivers/block/drbd/drbd_worker.c b/drivers/block/drbd/drbd_worker.c
index c6755c9a0aea..3bff33f21435 100644
--- a/drivers/block/drbd/drbd_worker.c
+++ b/drivers/block/drbd/drbd_worker.c
@@ -25,7 +25,7 @@
#include <linux/module.h>
#include <linux/drbd.h>
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
#include <linux/wait.h>
#include <linux/mm.h>
#include <linux/memcontrol.h>
diff --git a/drivers/block/swim3.c b/drivers/block/swim3.c
index aabd8e9d3035..61b3ffa4f458 100644
--- a/drivers/block/swim3.c
+++ b/drivers/block/swim3.c
@@ -20,7 +20,7 @@
#include <linux/stddef.h>
#include <linux/kernel.h>
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
#include <linux/timer.h>
#include <linux/delay.h>
#include <linux/fd.h>
diff --git a/drivers/char/applicom.c b/drivers/char/applicom.c
index e5c62dcf2c11..e770ad977472 100644
--- a/drivers/char/applicom.c
+++ b/drivers/char/applicom.c
@@ -23,7 +23,7 @@
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/interrupt.h>
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
#include <linux/slab.h>
#include <linux/errno.h>
#include <linux/mutex.h>
diff --git a/drivers/char/hpet.c b/drivers/char/hpet.c
index 20b32bb8c2af..8bdc38d81adf 100644
--- a/drivers/char/hpet.c
+++ b/drivers/char/hpet.c
@@ -25,6 +25,7 @@
#include <linux/spinlock.h>
#include <linux/sysctl.h>
#include <linux/wait.h>
+#include <linux/sched/signal.h>
#include <linux/bcd.h>
#include <linux/seq_file.h>
#include <linux/bitops.h>
diff --git a/drivers/char/hw_random/core.c b/drivers/char/hw_random/core.c
index 6ce5ce8be2f2..8848287cfa4f 100644
--- a/drivers/char/hw_random/core.c
+++ b/drivers/char/hw_random/core.c
@@ -41,6 +41,7 @@
#include <linux/kthread.h>
#include <linux/delay.h>
#include <linux/slab.h>
+#include <linux/sched/signal.h>
#include <linux/random.h>
#include <linux/err.h>
#include <linux/uaccess.h>
diff --git a/drivers/char/ipmi/ipmi_watchdog.c b/drivers/char/ipmi/ipmi_watchdog.c
index 4035495f3a86..d6549c2c2202 100644
--- a/drivers/char/ipmi/ipmi_watchdog.c
+++ b/drivers/char/ipmi/ipmi_watchdog.c
@@ -53,6 +53,7 @@
#include <linux/ctype.h>
#include <linux/delay.h>
#include <linux/atomic.h>
+#include <linux/sched/signal.h>
#ifdef CONFIG_X86
/*
diff --git a/drivers/char/lp.c b/drivers/char/lp.c
index 5b6742770656..565e4cf04a02 100644
--- a/drivers/char/lp.c
+++ b/drivers/char/lp.c
@@ -117,7 +117,7 @@
#include <linux/errno.h>
#include <linux/kernel.h>
#include <linux/major.h>
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
#include <linux/slab.h>
#include <linux/fcntl.h>
#include <linux/delay.h>
diff --git a/drivers/char/ppdev.c b/drivers/char/ppdev.c
index 87885d146dbb..2a558c706581 100644
--- a/drivers/char/ppdev.c
+++ b/drivers/char/ppdev.c
@@ -58,7 +58,7 @@
#include <linux/module.h>
#include <linux/init.h>
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
#include <linux/device.h>
#include <linux/ioctl.h>
#include <linux/parport.h>
diff --git a/drivers/char/rtc.c b/drivers/char/rtc.c
index 35259961cc38..974d48927b07 100644
--- a/drivers/char/rtc.c
+++ b/drivers/char/rtc.c
@@ -74,7 +74,7 @@
#include <linux/proc_fs.h>
#include <linux/seq_file.h>
#include <linux/spinlock.h>
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
#include <linux/sysctl.h>
#include <linux/wait.h>
#include <linux/bcd.h>
diff --git a/drivers/char/snsc.c b/drivers/char/snsc.c
index ec07f0e99732..6aa32679fd58 100644
--- a/drivers/char/snsc.c
+++ b/drivers/char/snsc.c
@@ -16,7 +16,7 @@
*/
#include <linux/interrupt.h>
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
#include <linux/device.h>
#include <linux/poll.h>
#include <linux/init.h>
diff --git a/drivers/dma-buf/dma-fence.c b/drivers/dma-buf/dma-fence.c
index 0212af7997d9..0b4fc2b63412 100644
--- a/drivers/dma-buf/dma-fence.c
+++ b/drivers/dma-buf/dma-fence.c
@@ -22,6 +22,7 @@
#include <linux/export.h>
#include <linux/atomic.h>
#include <linux/dma-fence.h>
+#include <linux/sched/signal.h>
#define CREATE_TRACE_POINTS
#include <trace/events/dma_fence.h>
diff --git a/drivers/gpu/drm/omapdrm/displays/panel-dsi-cm.c b/drivers/gpu/drm/omapdrm/displays/panel-dsi-cm.c
index dc026a843712..a5cc93c5289d 100644
--- a/drivers/gpu/drm/omapdrm/displays/panel-dsi-cm.c
+++ b/drivers/gpu/drm/omapdrm/displays/panel-dsi-cm.c
@@ -18,7 +18,7 @@
#include <linux/jiffies.h>
#include <linux/module.h>
#include <linux/platform_device.h>
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
#include <linux/slab.h>
#include <linux/workqueue.h>
#include <linux/of_device.h>
diff --git a/drivers/gpu/drm/vc4/vc4_gem.c b/drivers/gpu/drm/vc4/vc4_gem.c
index ab3016982466..1eef98c3331d 100644
--- a/drivers/gpu/drm/vc4/vc4_gem.c
+++ b/drivers/gpu/drm/vc4/vc4_gem.c
@@ -26,6 +26,7 @@
#include <linux/pm_runtime.h>
#include <linux/device.h>
#include <linux/io.h>
+#include <linux/sched/signal.h>
#include "uapi/drm/vc4_drm.h"
#include "vc4_drv.h"
diff --git a/drivers/gpu/vga/vgaarb.c b/drivers/gpu/vga/vgaarb.c
index 0f5b2dd24507..92f1452dad57 100644
--- a/drivers/gpu/vga/vgaarb.c
+++ b/drivers/gpu/vga/vgaarb.c
@@ -41,7 +41,7 @@
#include <linux/errno.h>
#include <linux/init.h>
#include <linux/list.h>
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
#include <linux/wait.h>
#include <linux/spinlock.h>
#include <linux/poll.h>
diff --git a/drivers/hid/hid-debug.c b/drivers/hid/hid-debug.c
index acfb522a432a..c6c9c51c806f 100644
--- a/drivers/hid/hid-debug.c
+++ b/drivers/hid/hid-debug.c
@@ -30,7 +30,7 @@
#include <linux/debugfs.h>
#include <linux/seq_file.h>
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
#include <linux/export.h>
#include <linux/slab.h>
#include <linux/uaccess.h>
diff --git a/drivers/hid/hid-roccat.c b/drivers/hid/hid-roccat.c
index 76d06cf87b2a..fb77dec720a4 100644
--- a/drivers/hid/hid-roccat.c
+++ b/drivers/hid/hid-roccat.c
@@ -25,7 +25,7 @@
#include <linux/cdev.h>
#include <linux/poll.h>
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
#include <linux/hid-roccat.h>
#include <linux/module.h>
diff --git a/drivers/hid/hidraw.c b/drivers/hid/hidraw.c
index f0e2757cb909..ec530454e6f6 100644
--- a/drivers/hid/hidraw.c
+++ b/drivers/hid/hidraw.c
@@ -33,7 +33,7 @@
#include <linux/slab.h>
#include <linux/hid.h>
#include <linux/mutex.h>
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
#include <linux/string.h>
#include <linux/hidraw.h>
diff --git a/drivers/hid/usbhid/hiddev.c b/drivers/hid/usbhid/hiddev.c
index 700145b15088..774bd701dae0 100644
--- a/drivers/hid/usbhid/hiddev.c
+++ b/drivers/hid/usbhid/hiddev.c
@@ -27,6 +27,7 @@
#include <linux/poll.h>
#include <linux/slab.h>
+#include <linux/sched/signal.h>
#include <linux/module.h>
#include <linux/init.h>
#include <linux/input.h>
diff --git a/drivers/hsi/clients/cmt_speech.c b/drivers/hsi/clients/cmt_speech.c
index 3deef6cc7d7c..a093e24416d2 100644
--- a/drivers/hsi/clients/cmt_speech.c
+++ b/drivers/hsi/clients/cmt_speech.c
@@ -31,7 +31,7 @@
#include <linux/slab.h>
#include <linux/fs.h>
#include <linux/poll.h>
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
#include <linux/ioctl.h>
#include <linux/uaccess.h>
#include <linux/pm_qos.h>
diff --git a/drivers/i2c/busses/i2c-ibm_iic.c b/drivers/i2c/busses/i2c-ibm_iic.c
index 412b91d255ad..961c5f42d956 100644
--- a/drivers/i2c/busses/i2c-ibm_iic.c
+++ b/drivers/i2c/busses/i2c-ibm_iic.c
@@ -37,6 +37,8 @@
#include <linux/delay.h>
#include <linux/slab.h>
#include <linux/interrupt.h>
+#include <linux/sched/signal.h>
+
#include <asm/irq.h>
#include <linux/io.h>
#include <linux/i2c.h>
diff --git a/drivers/i2c/busses/i2c-mpc.c b/drivers/i2c/busses/i2c-mpc.c
index 565a49a0c564..96caf378b1dc 100644
--- a/drivers/i2c/busses/i2c-mpc.c
+++ b/drivers/i2c/busses/i2c-mpc.c
@@ -15,7 +15,7 @@
#include <linux/kernel.h>
#include <linux/module.h>
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
#include <linux/of_address.h>
#include <linux/of_irq.h>
#include <linux/of_platform.h>
diff --git a/drivers/iio/industrialio-buffer.c b/drivers/iio/industrialio-buffer.c
index b12830b09c7d..d7743dcbe8a4 100644
--- a/drivers/iio/industrialio-buffer.c
+++ b/drivers/iio/industrialio-buffer.c
@@ -20,7 +20,7 @@
#include <linux/cdev.h>
#include <linux/slab.h>
#include <linux/poll.h>
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
#include <linux/iio/iio.h>
#include "iio_core.h"
diff --git a/drivers/infiniband/ulp/ipoib/ipoib_cm.c b/drivers/infiniband/ulp/ipoib/ipoib_cm.c
index 096c4f6fbd65..92bee4f8ab2a 100644
--- a/drivers/infiniband/ulp/ipoib/ipoib_cm.c
+++ b/drivers/infiniband/ulp/ipoib/ipoib_cm.c
@@ -38,6 +38,7 @@
#include <linux/slab.h>
#include <linux/vmalloc.h>
#include <linux/moduleparam.h>
+#include <linux/sched/signal.h>
#include "ipoib.h"
diff --git a/drivers/infiniband/ulp/ipoib/ipoib_vlan.c b/drivers/infiniband/ulp/ipoib/ipoib_vlan.c
index fd811115af49..03e37580d111 100644
--- a/drivers/infiniband/ulp/ipoib/ipoib_vlan.c
+++ b/drivers/infiniband/ulp/ipoib/ipoib_vlan.c
@@ -31,6 +31,7 @@
*/
#include <linux/module.h>
+#include <linux/sched/signal.h>
#include <linux/init.h>
#include <linux/seq_file.h>
diff --git a/drivers/isdn/capi/kcapi.c b/drivers/isdn/capi/kcapi.c
index 49d0f70c2bae..1dfd1085a04f 100644
--- a/drivers/isdn/capi/kcapi.c
+++ b/drivers/isdn/capi/kcapi.c
@@ -18,7 +18,7 @@
#include <linux/interrupt.h>
#include <linux/ioport.h>
#include <linux/proc_fs.h>
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
#include <linux/seq_file.h>
#include <linux/skbuff.h>
#include <linux/workqueue.h>
diff --git a/drivers/isdn/mISDN/timerdev.c b/drivers/isdn/mISDN/timerdev.c
index 9438d7ec3308..b1e135fc1fb5 100644
--- a/drivers/isdn/mISDN/timerdev.c
+++ b/drivers/isdn/mISDN/timerdev.c
@@ -25,6 +25,8 @@
#include <linux/module.h>
#include <linux/mISDNif.h>
#include <linux/mutex.h>
+#include <linux/sched/signal.h>
+
#include "core.h"
static DEFINE_MUTEX(mISDN_mutex);
diff --git a/drivers/lguest/core.c b/drivers/lguest/core.c
index ac219045daf7..395ed1961dbf 100644
--- a/drivers/lguest/core.c
+++ b/drivers/lguest/core.c
@@ -8,6 +8,7 @@
#include <linux/stddef.h>
#include <linux/io.h>
#include <linux/mm.h>
+#include <linux/sched/signal.h>
#include <linux/vmalloc.h>
#include <linux/cpu.h>
#include <linux/freezer.h>
diff --git a/drivers/macintosh/adb.c b/drivers/macintosh/adb.c
index 226179b975a0..609166a1f577 100644
--- a/drivers/macintosh/adb.c
+++ b/drivers/macintosh/adb.c
@@ -23,7 +23,7 @@
#include <linux/module.h>
#include <linux/fs.h>
#include <linux/mm.h>
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
#include <linux/adb.h>
#include <linux/cuda.h>
#include <linux/pmu.h>
diff --git a/drivers/macintosh/smu.c b/drivers/macintosh/smu.c
index 227869159ac0..1ac66421877a 100644
--- a/drivers/macintosh/smu.c
+++ b/drivers/macintosh/smu.c
@@ -39,6 +39,7 @@
#include <linux/of_platform.h>
#include <linux/slab.h>
#include <linux/memblock.h>
+#include <linux/sched/signal.h>
#include <asm/byteorder.h>
#include <asm/io.h>
diff --git a/drivers/macintosh/via-pmu.c b/drivers/macintosh/via-pmu.c
index 43b8db2b5445..cce99f72e4ae 100644
--- a/drivers/macintosh/via-pmu.c
+++ b/drivers/macintosh/via-pmu.c
@@ -23,7 +23,7 @@
#include <linux/errno.h>
#include <linux/kernel.h>
#include <linux/delay.h>
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
#include <linux/miscdevice.h>
#include <linux/blkdev.h>
#include <linux/pci.h>
diff --git a/drivers/mailbox/mailbox-test.c b/drivers/mailbox/mailbox-test.c
index 9c79f8019d2a..97fb956bb6e0 100644
--- a/drivers/mailbox/mailbox-test.c
+++ b/drivers/mailbox/mailbox-test.c
@@ -21,6 +21,7 @@
#include <linux/poll.h>
#include <linux/slab.h>
#include <linux/uaccess.h>
+#include <linux/sched/signal.h>
#define MBOX_MAX_SIG_LEN 8
#define MBOX_MAX_MSG_LEN 128
diff --git a/drivers/md/dm.c b/drivers/md/dm.c
index 3086da5664f3..e7de3aa3b72e 100644
--- a/drivers/md/dm.c
+++ b/drivers/md/dm.c
@@ -12,6 +12,7 @@
#include <linux/init.h>
#include <linux/module.h>
#include <linux/mutex.h>
+#include <linux/sched/signal.h>
#include <linux/blkpg.h>
#include <linux/bio.h>
#include <linux/mempool.h>
diff --git a/drivers/media/dvb-core/dvb_ca_en50221.c b/drivers/media/dvb-core/dvb_ca_en50221.c
index fd893141211c..714910f792b7 100644
--- a/drivers/media/dvb-core/dvb_ca_en50221.c
+++ b/drivers/media/dvb-core/dvb_ca_en50221.c
@@ -37,7 +37,7 @@
#include <linux/vmalloc.h>
#include <linux/delay.h>
#include <linux/spinlock.h>
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
#include <linux/kthread.h>
#include "dvb_ca_en50221.h"
diff --git a/drivers/media/dvb-core/dvb_demux.c b/drivers/media/dvb-core/dvb_demux.c
index bbbff72bbb2a..e73d1050dd42 100644
--- a/drivers/media/dvb-core/dvb_demux.c
+++ b/drivers/media/dvb-core/dvb_demux.c
@@ -23,7 +23,7 @@
#define pr_fmt(fmt) "dvb_demux: " fmt
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
#include <linux/spinlock.h>
#include <linux/slab.h>
#include <linux/vmalloc.h>
diff --git a/drivers/media/dvb-core/dvb_frontend.c b/drivers/media/dvb-core/dvb_frontend.c
index db74cb74d271..c47d99f3dcc8 100644
--- a/drivers/media/dvb-core/dvb_frontend.c
+++ b/drivers/media/dvb-core/dvb_frontend.c
@@ -32,7 +32,7 @@
#include <linux/string.h>
#include <linux/kernel.h>
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
#include <linux/wait.h>
#include <linux/slab.h>
#include <linux/poll.h>
diff --git a/drivers/media/pci/cx18/cx18-driver.h b/drivers/media/pci/cx18/cx18-driver.h
index ef308a10e870..b880cd91d790 100644
--- a/drivers/media/pci/cx18/cx18-driver.h
+++ b/drivers/media/pci/cx18/cx18-driver.h
@@ -29,7 +29,7 @@
#include <linux/moduleparam.h>
#include <linux/init.h>
#include <linux/delay.h>
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
#include <linux/fs.h>
#include <linux/pci.h>
#include <linux/interrupt.h>
diff --git a/drivers/media/pci/ivtv/ivtv-driver.h b/drivers/media/pci/ivtv/ivtv-driver.h
index 6b09a9514d64..b49b538147ce 100644
--- a/drivers/media/pci/ivtv/ivtv-driver.h
+++ b/drivers/media/pci/ivtv/ivtv-driver.h
@@ -39,7 +39,7 @@
#include <linux/module.h>
#include <linux/init.h>
#include <linux/delay.h>
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
#include <linux/fs.h>
#include <linux/pci.h>
#include <linux/interrupt.h>
diff --git a/drivers/media/pci/pt1/pt1.c b/drivers/media/pci/pt1/pt1.c
index d5ee82aee9e8..afec1719f6a0 100644
--- a/drivers/media/pci/pt1/pt1.c
+++ b/drivers/media/pci/pt1/pt1.c
@@ -22,6 +22,7 @@
*/
#include <linux/kernel.h>
+#include <linux/sched/signal.h>
#include <linux/module.h>
#include <linux/slab.h>
#include <linux/vmalloc.h>
diff --git a/drivers/media/pci/pt3/pt3.c b/drivers/media/pci/pt3/pt3.c
index 77f4d15f322b..e8b5d0992157 100644
--- a/drivers/media/pci/pt3/pt3.c
+++ b/drivers/media/pci/pt3/pt3.c
@@ -21,6 +21,7 @@
#include <linux/module.h>
#include <linux/pci.h>
#include <linux/string.h>
+#include <linux/sched/signal.h>
#include "dmxdev.h"
#include "dvbdev.h"
diff --git a/drivers/media/pci/solo6x10/solo6x10-i2c.c b/drivers/media/pci/solo6x10/solo6x10-i2c.c
index c908672b2c40..e83bb79f9349 100644
--- a/drivers/media/pci/solo6x10/solo6x10-i2c.c
+++ b/drivers/media/pci/solo6x10/solo6x10-i2c.c
@@ -27,6 +27,7 @@
* thread context, ACK the interrupt, and move on. -- BenC */
#include <linux/kernel.h>
+#include <linux/sched/signal.h>
#include "solo6x10.h"
diff --git a/drivers/media/pci/zoran/zoran_device.c b/drivers/media/pci/zoran/zoran_device.c
index 35b552c178da..67dbc3ddb0e5 100644
--- a/drivers/media/pci/zoran/zoran_device.c
+++ b/drivers/media/pci/zoran/zoran_device.c
@@ -32,6 +32,7 @@
#include <linux/module.h>
#include <linux/vmalloc.h>
#include <linux/ktime.h>
+#include <linux/sched/signal.h>
#include <linux/interrupt.h>
#include <linux/proc_fs.h>
diff --git a/drivers/media/platform/vivid/vivid-radio-rx.c b/drivers/media/platform/vivid/vivid-radio-rx.c
index f99092ca8f5c..47c36c26096b 100644
--- a/drivers/media/platform/vivid/vivid-radio-rx.c
+++ b/drivers/media/platform/vivid/vivid-radio-rx.c
@@ -22,6 +22,8 @@
#include <linux/delay.h>
#include <linux/videodev2.h>
#include <linux/v4l2-dv-timings.h>
+#include <linux/sched/signal.h>
+
#include <media/v4l2-common.h>
#include <media/v4l2-event.h>
#include <media/v4l2-dv-timings.h>
diff --git a/drivers/media/platform/vivid/vivid-radio-tx.c b/drivers/media/platform/vivid/vivid-radio-tx.c
index 8c59d4f53200..0e8025b7b4dd 100644
--- a/drivers/media/platform/vivid/vivid-radio-tx.c
+++ b/drivers/media/platform/vivid/vivid-radio-tx.c
@@ -19,6 +19,7 @@
#include <linux/errno.h>
#include <linux/kernel.h>
+#include <linux/sched/signal.h>
#include <linux/delay.h>
#include <linux/videodev2.h>
#include <linux/v4l2-dv-timings.h>
diff --git a/drivers/media/rc/lirc_dev.c b/drivers/media/rc/lirc_dev.c
index 3854809e8531..365fd8c33544 100644
--- a/drivers/media/rc/lirc_dev.c
+++ b/drivers/media/rc/lirc_dev.c
@@ -23,7 +23,7 @@
#include <linux/module.h>
#include <linux/kernel.h>
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
#include <linux/errno.h>
#include <linux/ioctl.h>
#include <linux/fs.h>
diff --git a/drivers/media/usb/cpia2/cpia2_core.c b/drivers/media/usb/cpia2/cpia2_core.c
index 0310fd6ed103..a9f98ac82400 100644
--- a/drivers/media/usb/cpia2/cpia2_core.c
+++ b/drivers/media/usb/cpia2/cpia2_core.c
@@ -36,6 +36,7 @@
#include <linux/mm.h>
#include <linux/vmalloc.h>
#include <linux/firmware.h>
+#include <linux/sched/signal.h>
#define FIRMWARE "cpia2/stv0672_vp4.bin"
MODULE_FIRMWARE(FIRMWARE);
diff --git a/drivers/media/usb/gspca/cpia1.c b/drivers/media/usb/gspca/cpia1.c
index 52b88e9e656b..47c7193ddcc0 100644
--- a/drivers/media/usb/gspca/cpia1.c
+++ b/drivers/media/usb/gspca/cpia1.c
@@ -31,6 +31,8 @@
#define MODULE_NAME "cpia1"
#include <linux/input.h>
+#include <linux/sched/signal.h>
+
#include "gspca.h"
MODULE_AUTHOR("Hans de Goede <hdegoede@redhat.com>");
diff --git a/drivers/misc/cxl/fault.c b/drivers/misc/cxl/fault.c
index e33011e3e7e2..2fa015c05561 100644
--- a/drivers/misc/cxl/fault.c
+++ b/drivers/misc/cxl/fault.c
@@ -8,7 +8,7 @@
*/
#include <linux/workqueue.h>
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
#include <linux/sched/mm.h>
#include <linux/pid.h>
#include <linux/mm.h>
diff --git a/drivers/misc/cxl/file.c b/drivers/misc/cxl/file.c
index 859959f19f10..e7139c76f961 100644
--- a/drivers/misc/cxl/file.c
+++ b/drivers/misc/cxl/file.c
@@ -12,7 +12,7 @@
#include <linux/export.h>
#include <linux/kernel.h>
#include <linux/bitmap.h>
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
#include <linux/poll.h>
#include <linux/pid.h>
#include <linux/fs.h>
diff --git a/drivers/misc/ibmasm/r_heartbeat.c b/drivers/misc/ibmasm/r_heartbeat.c
index 232034f5da48..5c7dd26db716 100644
--- a/drivers/misc/ibmasm/r_heartbeat.c
+++ b/drivers/misc/ibmasm/r_heartbeat.c
@@ -20,7 +20,7 @@
*
*/
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
#include "ibmasm.h"
#include "dot_command.h"
diff --git a/drivers/misc/lis3lv02d/lis3lv02d.c b/drivers/misc/lis3lv02d/lis3lv02d.c
index fb8705fc3aca..e389b0b5278d 100644
--- a/drivers/misc/lis3lv02d/lis3lv02d.c
+++ b/drivers/misc/lis3lv02d/lis3lv02d.c
@@ -23,6 +23,7 @@
#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
#include <linux/kernel.h>
+#include <linux/sched/signal.h>
#include <linux/dmi.h>
#include <linux/module.h>
#include <linux/types.h>
diff --git a/drivers/misc/mei/bus.c b/drivers/misc/mei/bus.c
index 2d9c5dd06e42..8db8c96e27b5 100644
--- a/drivers/misc/mei/bus.c
+++ b/drivers/misc/mei/bus.c
@@ -16,7 +16,7 @@
#include <linux/module.h>
#include <linux/device.h>
#include <linux/kernel.h>
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
#include <linux/init.h>
#include <linux/errno.h>
#include <linux/slab.h>
diff --git a/drivers/misc/mei/client.c b/drivers/misc/mei/client.c
index b0395601c6ae..24212a706f96 100644
--- a/drivers/misc/mei/client.c
+++ b/drivers/misc/mei/client.c
@@ -14,7 +14,7 @@
*
*/
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
#include <linux/wait.h>
#include <linux/delay.h>
#include <linux/slab.h>
diff --git a/drivers/misc/mei/main.c b/drivers/misc/mei/main.c
index e1bf54481fd6..9af39188b597 100644
--- a/drivers/misc/mei/main.c
+++ b/drivers/misc/mei/main.c
@@ -26,7 +26,7 @@
#include <linux/init.h>
#include <linux/ioctl.h>
#include <linux/cdev.h>
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
#include <linux/uuid.h>
#include <linux/compat.h>
#include <linux/jiffies.h>
diff --git a/drivers/misc/mic/scif/scif_main.h b/drivers/misc/mic/scif/scif_main.h
index a08f0b600a9e..0e5eff9ad080 100644
--- a/drivers/misc/mic/scif/scif_main.h
+++ b/drivers/misc/mic/scif/scif_main.h
@@ -18,7 +18,7 @@
#ifndef SCIF_MAIN_H
#define SCIF_MAIN_H
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
#include <linux/pci.h>
#include <linux/miscdevice.h>
#include <linux/dmaengine.h>
diff --git a/drivers/misc/vexpress-syscfg.c b/drivers/misc/vexpress-syscfg.c
index c344483fa7d6..2cde80c7bb93 100644
--- a/drivers/misc/vexpress-syscfg.c
+++ b/drivers/misc/vexpress-syscfg.c
@@ -16,7 +16,7 @@
#include <linux/io.h>
#include <linux/of.h>
#include <linux/platform_device.h>
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
#include <linux/slab.h>
#include <linux/syscore_ops.h>
#include <linux/vexpress.h>
diff --git a/drivers/mtd/tests/mtd_test.h b/drivers/mtd/tests/mtd_test.h
index 4b7bee17c924..04afd0e7074f 100644
--- a/drivers/mtd/tests/mtd_test.h
+++ b/drivers/mtd/tests/mtd_test.h
@@ -1,5 +1,5 @@
#include <linux/mtd/mtd.h>
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
static inline int mtdtest_relax(void)
{
diff --git a/drivers/net/bonding/bond_options.c b/drivers/net/bonding/bond_options.c
index 577e57cad1dc..1bcbb8913e17 100644
--- a/drivers/net/bonding/bond_options.c
+++ b/drivers/net/bonding/bond_options.c
@@ -16,6 +16,8 @@
#include <linux/rcupdate.h>
#include <linux/ctype.h>
#include <linux/inet.h>
+#include <linux/sched/signal.h>
+
#include <net/bonding.h>
static int bond_option_active_slave_set(struct bonding *bond,
diff --git a/drivers/net/bonding/bond_sysfs.c b/drivers/net/bonding/bond_sysfs.c
index e23c3ed737de..770623a0cc01 100644
--- a/drivers/net/bonding/bond_sysfs.c
+++ b/drivers/net/bonding/bond_sysfs.c
@@ -24,7 +24,7 @@
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/device.h>
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
#include <linux/fs.h>
#include <linux/types.h>
#include <linux/string.h>
diff --git a/drivers/net/can/softing/softing_fw.c b/drivers/net/can/softing/softing_fw.c
index 4063215c9b54..aac58ce6e371 100644
--- a/drivers/net/can/softing/softing_fw.c
+++ b/drivers/net/can/softing/softing_fw.c
@@ -17,7 +17,7 @@
*/
#include <linux/firmware.h>
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
#include <asm/div64.h>
#include <asm/io.h>
diff --git a/drivers/net/ethernet/broadcom/tg3.c b/drivers/net/ethernet/broadcom/tg3.c
index ae42de4fdddf..07d9537a3d21 100644
--- a/drivers/net/ethernet/broadcom/tg3.c
+++ b/drivers/net/ethernet/broadcom/tg3.c
@@ -20,6 +20,7 @@
#include <linux/moduleparam.h>
#include <linux/stringify.h>
#include <linux/kernel.h>
+#include <linux/sched/signal.h>
#include <linux/types.h>
#include <linux/compiler.h>
#include <linux/slab.h>
diff --git a/drivers/net/ethernet/cavium/liquidio/octeon_main.h b/drivers/net/ethernet/cavium/liquidio/octeon_main.h
index 8cd389148166..aa36e9ae7676 100644
--- a/drivers/net/ethernet/cavium/liquidio/octeon_main.h
+++ b/drivers/net/ethernet/cavium/liquidio/octeon_main.h
@@ -23,6 +23,8 @@
#ifndef _OCTEON_MAIN_H_
#define _OCTEON_MAIN_H_
+#include <linux/sched/signal.h>
+
#if BITS_PER_LONG == 32
#define CVM_CAST64(v) ((long long)(v))
#elif BITS_PER_LONG == 64
diff --git a/drivers/net/ethernet/sfc/falcon/falcon.c b/drivers/net/ethernet/sfc/falcon/falcon.c
index c6ff0cc5ef18..93c713c1f627 100644
--- a/drivers/net/ethernet/sfc/falcon/falcon.c
+++ b/drivers/net/ethernet/sfc/falcon/falcon.c
@@ -16,6 +16,8 @@
#include <linux/i2c.h>
#include <linux/mii.h>
#include <linux/slab.h>
+#include <linux/sched/signal.h>
+
#include "net_driver.h"
#include "bitfield.h"
#include "efx.h"
diff --git a/drivers/net/irda/stir4200.c b/drivers/net/irda/stir4200.c
index 42da094b68dd..7ee514879531 100644
--- a/drivers/net/irda/stir4200.c
+++ b/drivers/net/irda/stir4200.c
@@ -40,6 +40,7 @@
#include <linux/moduleparam.h>
#include <linux/kernel.h>
+#include <linux/sched/signal.h>
#include <linux/ktime.h>
#include <linux/types.h>
#include <linux/time.h>
diff --git a/drivers/net/macvtap.c b/drivers/net/macvtap.c
index 402618565838..fde3216c4a82 100644
--- a/drivers/net/macvtap.c
+++ b/drivers/net/macvtap.c
@@ -8,7 +8,7 @@
#include <linux/module.h>
#include <linux/skbuff.h>
#include <linux/cache.h>
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
#include <linux/types.h>
#include <linux/slab.h>
#include <linux/wait.h>
diff --git a/drivers/net/ppp/ppp_generic.c b/drivers/net/ppp/ppp_generic.c
index 3d3b1f4339ef..cd1353b981d0 100644
--- a/drivers/net/ppp/ppp_generic.c
+++ b/drivers/net/ppp/ppp_generic.c
@@ -24,6 +24,7 @@
#include <linux/module.h>
#include <linux/kernel.h>
+#include <linux/sched/signal.h>
#include <linux/kmod.h>
#include <linux/init.h>
#include <linux/list.h>
diff --git a/drivers/net/tun.c b/drivers/net/tun.c
index 2cd10b26b650..2e73384b6b6c 100644
--- a/drivers/net/tun.c
+++ b/drivers/net/tun.c
@@ -44,6 +44,7 @@
#include <linux/module.h>
#include <linux/errno.h>
#include <linux/kernel.h>
+#include <linux/sched/signal.h>
#include <linux/major.h>
#include <linux/slab.h>
#include <linux/poll.h>
diff --git a/drivers/net/usb/hso.c b/drivers/net/usb/hso.c
index e7b516342678..4f2e8141dbe2 100644
--- a/drivers/net/usb/hso.c
+++ b/drivers/net/usb/hso.c
@@ -52,7 +52,7 @@
#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
#include <linux/slab.h>
#include <linux/init.h>
#include <linux/delay.h>
diff --git a/drivers/net/usb/qmi_wwan.c b/drivers/net/usb/qmi_wwan.c
index 24d5272cdce5..805674550683 100644
--- a/drivers/net/usb/qmi_wwan.c
+++ b/drivers/net/usb/qmi_wwan.c
@@ -11,6 +11,7 @@
*/
#include <linux/module.h>
+#include <linux/sched/signal.h>
#include <linux/netdevice.h>
#include <linux/ethtool.h>
#include <linux/etherdevice.h>
diff --git a/drivers/net/wan/cosa.c b/drivers/net/wan/cosa.c
index 087eb266601f..4ca71bca39ac 100644
--- a/drivers/net/wan/cosa.c
+++ b/drivers/net/wan/cosa.c
@@ -78,7 +78,7 @@
#include <linux/module.h>
#include <linux/kernel.h>
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
#include <linux/slab.h>
#include <linux/poll.h>
#include <linux/fs.h>
diff --git a/drivers/net/wireless/ath/ath6kl/cfg80211.c b/drivers/net/wireless/ath/ath6kl/cfg80211.c
index b7fe0af4cb24..363b30a549c2 100644
--- a/drivers/net/wireless/ath/ath6kl/cfg80211.c
+++ b/drivers/net/wireless/ath/ath6kl/cfg80211.c
@@ -20,6 +20,7 @@
#include <linux/moduleparam.h>
#include <linux/inetdevice.h>
#include <linux/export.h>
+#include <linux/sched/signal.h>
#include "core.h"
#include "cfg80211.h"
diff --git a/drivers/net/wireless/broadcom/b43legacy/main.c b/drivers/net/wireless/broadcom/b43legacy/main.c
index e97ab2b91663..cdafebb9c936 100644
--- a/drivers/net/wireless/broadcom/b43legacy/main.c
+++ b/drivers/net/wireless/broadcom/b43legacy/main.c
@@ -36,7 +36,7 @@
#include <linux/etherdevice.h>
#include <linux/firmware.h>
#include <linux/workqueue.h>
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
#include <linux/skbuff.h>
#include <linux/dma-mapping.h>
#include <linux/slab.h>
diff --git a/drivers/net/wireless/intersil/hostap/hostap_hw.c b/drivers/net/wireless/intersil/hostap/hostap_hw.c
index 544ef7adde7d..04dfd040a650 100644
--- a/drivers/net/wireless/intersil/hostap/hostap_hw.c
+++ b/drivers/net/wireless/intersil/hostap/hostap_hw.c
@@ -43,7 +43,7 @@
#include <linux/delay.h>
#include <linux/random.h>
#include <linux/wait.h>
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
#include <linux/rtnetlink.h>
#include <linux/wireless.h>
#include <net/iw_handler.h>
diff --git a/drivers/net/wireless/intersil/hostap/hostap_ioctl.c b/drivers/net/wireless/intersil/hostap/hostap_ioctl.c
index a5656bc0e6aa..b2c6b065b542 100644
--- a/drivers/net/wireless/intersil/hostap/hostap_ioctl.c
+++ b/drivers/net/wireless/intersil/hostap/hostap_ioctl.c
@@ -2,7 +2,7 @@
#include <linux/slab.h>
#include <linux/types.h>
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
#include <linux/ethtool.h>
#include <linux/if_arp.h>
#include <linux/module.h>
diff --git a/drivers/oprofile/event_buffer.c b/drivers/oprofile/event_buffer.c
index 67935fbbbcab..32888f2bd1a9 100644
--- a/drivers/oprofile/event_buffer.c
+++ b/drivers/oprofile/event_buffer.c
@@ -14,7 +14,7 @@
#include <linux/vmalloc.h>
#include <linux/oprofile.h>
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
#include <linux/capability.h>
#include <linux/dcookies.h>
#include <linux/fs.h>
diff --git a/drivers/parport/daisy.c b/drivers/parport/daisy.c
index d998d0ed2bec..46eb15fb57ff 100644
--- a/drivers/parport/daisy.c
+++ b/drivers/parport/daisy.c
@@ -23,7 +23,7 @@
#include <linux/parport.h>
#include <linux/delay.h>
#include <linux/slab.h>
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
#include <asm/current.h>
#include <linux/uaccess.h>
diff --git a/drivers/parport/ieee1284.c b/drivers/parport/ieee1284.c
index f9fd4b33a546..74cc6dd982d2 100644
--- a/drivers/parport/ieee1284.c
+++ b/drivers/parport/ieee1284.c
@@ -23,7 +23,7 @@
#include <linux/kernel.h>
#include <linux/interrupt.h>
#include <linux/timer.h>
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
#undef DEBUG /* undef me for production */
diff --git a/drivers/parport/ieee1284_ops.c b/drivers/parport/ieee1284_ops.c
index c0e7d21c88c2..655e07cc00b5 100644
--- a/drivers/parport/ieee1284_ops.c
+++ b/drivers/parport/ieee1284_ops.c
@@ -17,7 +17,7 @@
#include <linux/module.h>
#include <linux/parport.h>
#include <linux/delay.h>
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
#include <linux/uaccess.h>
#undef DEBUG /* undef me for production */
diff --git a/drivers/parport/parport_ip32.c b/drivers/parport/parport_ip32.c
index 30e981be14c2..dcbeeb220dda 100644
--- a/drivers/parport/parport_ip32.c
+++ b/drivers/parport/parport_ip32.c
@@ -102,7 +102,7 @@
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/parport.h>
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
#include <linux/slab.h>
#include <linux/spinlock.h>
#include <linux/stddef.h>
diff --git a/drivers/parport/parport_pc.c b/drivers/parport/parport_pc.c
index 78530d1714dc..3946cfb4ed5f 100644
--- a/drivers/parport/parport_pc.c
+++ b/drivers/parport/parport_pc.c
@@ -44,7 +44,7 @@
#include <linux/module.h>
#include <linux/init.h>
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
#include <linux/delay.h>
#include <linux/errno.h>
#include <linux/interrupt.h>
diff --git a/drivers/parport/share.c b/drivers/parport/share.c
index 3308427ed9f7..bc090daa850a 100644
--- a/drivers/parport/share.c
+++ b/drivers/parport/share.c
@@ -27,7 +27,7 @@
#include <linux/ioport.h>
#include <linux/kernel.h>
#include <linux/slab.h>
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
#include <linux/kmod.h>
#include <linux/device.h>
diff --git a/drivers/pci/access.c b/drivers/pci/access.c
index db239547fefd..923bf66929fd 100644
--- a/drivers/pci/access.c
+++ b/drivers/pci/access.c
@@ -1,7 +1,7 @@
#include <linux/delay.h>
#include <linux/pci.h>
#include <linux/module.h>
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
#include <linux/slab.h>
#include <linux/ioport.h>
#include <linux/wait.h>
diff --git a/drivers/pci/hotplug/cpci_hotplug_core.c b/drivers/pci/hotplug/cpci_hotplug_core.c
index 7ec8a8f72c69..95f689f53920 100644
--- a/drivers/pci/hotplug/cpci_hotplug_core.c
+++ b/drivers/pci/hotplug/cpci_hotplug_core.c
@@ -27,6 +27,7 @@
#include <linux/module.h>
#include <linux/kernel.h>
+#include <linux/sched/signal.h>
#include <linux/slab.h>
#include <linux/pci.h>
#include <linux/pci_hotplug.h>
diff --git a/drivers/pci/hotplug/cpqphp.h b/drivers/pci/hotplug/cpqphp.h
index 9103a7b9f3b9..48c8a066a6b7 100644
--- a/drivers/pci/hotplug/cpqphp.h
+++ b/drivers/pci/hotplug/cpqphp.h
@@ -32,7 +32,7 @@
#include <asm/io.h> /* for read? and write? functions */
#include <linux/delay.h> /* for delays */
#include <linux/mutex.h>
-#include <linux/sched.h> /* for signal_pending() */
+#include <linux/sched/signal.h> /* for signal_pending() */
#define MY_NAME "cpqphp"
diff --git a/drivers/pci/hotplug/pciehp.h b/drivers/pci/hotplug/pciehp.h
index 37d70b5ad22f..06109d40c4ac 100644
--- a/drivers/pci/hotplug/pciehp.h
+++ b/drivers/pci/hotplug/pciehp.h
@@ -33,7 +33,7 @@
#include <linux/pci.h>
#include <linux/pci_hotplug.h>
#include <linux/delay.h>
-#include <linux/sched.h> /* signal_pending() */
+#include <linux/sched/signal.h> /* signal_pending() */
#include <linux/pcieport_if.h>
#include <linux/mutex.h>
#include <linux/workqueue.h>
diff --git a/drivers/pci/hotplug/shpchp.h b/drivers/pci/hotplug/shpchp.h
index 4da8fc601467..70c7ea6af034 100644
--- a/drivers/pci/hotplug/shpchp.h
+++ b/drivers/pci/hotplug/shpchp.h
@@ -33,7 +33,7 @@
#include <linux/pci.h>
#include <linux/pci_hotplug.h>
#include <linux/delay.h>
-#include <linux/sched.h> /* signal_pending(), struct timer_list */
+#include <linux/sched/signal.h> /* signal_pending(), struct timer_list */
#include <linux/mutex.h>
#include <linux/workqueue.h>
diff --git a/drivers/rtc/rtc-dev.c b/drivers/rtc/rtc-dev.c
index a6d9434addf6..6dc8f29697ab 100644
--- a/drivers/rtc/rtc-dev.c
+++ b/drivers/rtc/rtc-dev.c
@@ -15,7 +15,7 @@
#include <linux/module.h>
#include <linux/rtc.h>
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
#include "rtc-core.h"
static dev_t rtc_devt;
diff --git a/drivers/s390/cio/device.c b/drivers/s390/cio/device.c
index 79823ee9c100..b8006ea9099c 100644
--- a/drivers/s390/cio/device.c
+++ b/drivers/s390/cio/device.c
@@ -24,6 +24,7 @@
#include <linux/delay.h>
#include <linux/timer.h>
#include <linux/kernel_stat.h>
+#include <linux/sched/signal.h>
#include <asm/ccwdev.h>
#include <asm/cio.h>
diff --git a/drivers/scsi/lpfc/lpfc_vport.c b/drivers/scsi/lpfc/lpfc_vport.c
index c27f4b724547..57fcb0ffab97 100644
--- a/drivers/scsi/lpfc/lpfc_vport.c
+++ b/drivers/scsi/lpfc/lpfc_vport.c
@@ -28,6 +28,7 @@
#include <linux/pci.h>
#include <linux/slab.h>
#include <linux/spinlock.h>
+#include <linux/sched/signal.h>
#include <scsi/scsi.h>
#include <scsi/scsi_device.h>
diff --git a/drivers/scsi/osst.c b/drivers/scsi/osst.c
index e8196c55b633..9ad945f1e288 100644
--- a/drivers/scsi/osst.c
+++ b/drivers/scsi/osst.c
@@ -35,7 +35,7 @@ static const char * osst_version = "0.99.4";
#include <linux/fs.h>
#include <linux/kernel.h>
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
#include <linux/proc_fs.h>
#include <linux/mm.h>
#include <linux/slab.h>
diff --git a/drivers/scsi/st.c b/drivers/scsi/st.c
index 5f35b863e1a7..429d976bcaa2 100644
--- a/drivers/scsi/st.c
+++ b/drivers/scsi/st.c
@@ -23,7 +23,7 @@ static const char *verstr = "20160209";
#include <linux/fs.h>
#include <linux/kernel.h>
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
#include <linux/mm.h>
#include <linux/init.h>
#include <linux/string.h>
diff --git a/drivers/soc/fsl/qbman/dpaa_sys.h b/drivers/soc/fsl/qbman/dpaa_sys.h
index 2eaf3184f61d..2ce394aa4c95 100644
--- a/drivers/soc/fsl/qbman/dpaa_sys.h
+++ b/drivers/soc/fsl/qbman/dpaa_sys.h
@@ -36,6 +36,7 @@
#include <linux/module.h>
#include <linux/interrupt.h>
#include <linux/kthread.h>
+#include <linux/sched/signal.h>
#include <linux/vmalloc.h>
#include <linux/platform_device.h>
#include <linux/of.h>
diff --git a/drivers/staging/comedi/comedi_fops.c b/drivers/staging/comedi/comedi_fops.c
index 64b3966c5f1f..85ee0000751f 100644
--- a/drivers/staging/comedi/comedi_fops.c
+++ b/drivers/staging/comedi/comedi_fops.c
@@ -23,7 +23,7 @@
#include <linux/module.h>
#include <linux/errno.h>
#include <linux/kernel.h>
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
#include <linux/fcntl.h>
#include <linux/delay.h>
#include <linux/mm.h>
diff --git a/drivers/staging/dgnc/dgnc_tty.c b/drivers/staging/dgnc/dgnc_tty.c
index 1e10c0fe4745..3993b2727de1 100644
--- a/drivers/staging/dgnc/dgnc_tty.c
+++ b/drivers/staging/dgnc/dgnc_tty.c
@@ -19,7 +19,7 @@
*/
#include <linux/kernel.h>
-#include <linux/sched.h> /* For jiffies, task states */
+#include <linux/sched/signal.h> /* For jiffies, task states, etc. */
#include <linux/interrupt.h> /* For tasklet and interrupt structs/defines */
#include <linux/module.h>
#include <linux/ctype.h>
diff --git a/drivers/staging/dgnc/dgnc_utils.c b/drivers/staging/dgnc/dgnc_utils.c
index 95272f4765fc..6f59240024d1 100644
--- a/drivers/staging/dgnc/dgnc_utils.c
+++ b/drivers/staging/dgnc/dgnc_utils.c
@@ -1,5 +1,5 @@
#include <linux/tty.h>
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
#include "dgnc_utils.h"
/*
diff --git a/drivers/staging/greybus/uart.c b/drivers/staging/greybus/uart.c
index 6d39f4a04754..64e7af047758 100644
--- a/drivers/staging/greybus/uart.c
+++ b/drivers/staging/greybus/uart.c
@@ -14,7 +14,7 @@
#include <linux/kernel.h>
#include <linux/errno.h>
#include <linux/module.h>
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
#include <linux/wait.h>
#include <linux/slab.h>
#include <linux/uaccess.h>
diff --git a/drivers/staging/lustre/lustre/include/lustre/lustre_user.h b/drivers/staging/lustre/lustre/include/lustre/lustre_user.h
index 3301ad652db1..50544b4ad57d 100644
--- a/drivers/staging/lustre/lustre/include/lustre/lustre_user.h
+++ b/drivers/staging/lustre/lustre/include/lustre/lustre_user.h
@@ -44,6 +44,7 @@
#ifdef __KERNEL__
# include <linux/quota.h>
+# include <linux/sched/signal.h>
# include <linux/string.h> /* snprintf() */
# include <linux/version.h>
#else /* !__KERNEL__ */
diff --git a/drivers/staging/lustre/lustre/include/lustre_lib.h b/drivers/staging/lustre/lustre/include/lustre_lib.h
index 27f3148c4344..b04d613846ee 100644
--- a/drivers/staging/lustre/lustre/include/lustre_lib.h
+++ b/drivers/staging/lustre/lustre/include/lustre_lib.h
@@ -42,7 +42,7 @@
* @{
*/
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
#include <linux/signal.h>
#include <linux/types.h>
#include "../../include/linux/libcfs/libcfs.h"
diff --git a/drivers/staging/lustre/lustre/include/obd_support.h b/drivers/staging/lustre/lustre/include/obd_support.h
index aaedec7d793c..dace6591a0a4 100644
--- a/drivers/staging/lustre/lustre/include/obd_support.h
+++ b/drivers/staging/lustre/lustre/include/obd_support.h
@@ -34,6 +34,8 @@
#define _OBD_SUPPORT
#include <linux/slab.h>
+#include <linux/sched/signal.h>
+
#include "../../include/linux/libcfs/libcfs.h"
#include "lustre_compat.h"
#include "lprocfs_status.h"
diff --git a/drivers/staging/media/lirc/lirc_parallel.c b/drivers/staging/media/lirc/lirc_parallel.c
index bfb76a45bfbf..204005c23f9e 100644
--- a/drivers/staging/media/lirc/lirc_parallel.c
+++ b/drivers/staging/media/lirc/lirc_parallel.c
@@ -27,7 +27,7 @@
/*** Includes ***/
#include <linux/module.h>
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
#include <linux/errno.h>
#include <linux/signal.h>
#include <linux/fs.h>
diff --git a/drivers/staging/media/lirc/lirc_sir.c b/drivers/staging/media/lirc/lirc_sir.c
index 4f326e97ad75..17ebe3b69efa 100644
--- a/drivers/staging/media/lirc/lirc_sir.c
+++ b/drivers/staging/media/lirc/lirc_sir.c
@@ -36,7 +36,7 @@
#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
#include <linux/module.h>
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
#include <linux/errno.h>
#include <linux/signal.h>
#include <linux/fs.h>
diff --git a/drivers/staging/media/lirc/lirc_zilog.c b/drivers/staging/media/lirc/lirc_zilog.c
index 34aac3e2eb87..e4a533b6beb3 100644
--- a/drivers/staging/media/lirc/lirc_zilog.c
+++ b/drivers/staging/media/lirc/lirc_zilog.c
@@ -42,7 +42,7 @@
#include <linux/module.h>
#include <linux/kmod.h>
#include <linux/kernel.h>
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
#include <linux/fs.h>
#include <linux/poll.h>
#include <linux/string.h>
diff --git a/drivers/staging/speakup/speakup_soft.c b/drivers/staging/speakup/speakup_soft.c
index ed3e4282f41c..55cc752f5366 100644
--- a/drivers/staging/speakup/speakup_soft.c
+++ b/drivers/staging/speakup/speakup_soft.c
@@ -22,7 +22,7 @@
#include <linux/unistd.h>
#include <linux/miscdevice.h> /* for misc_register, and SYNTH_MINOR */
#include <linux/poll.h> /* for poll_wait() */
-#include <linux/sched.h> /* schedule(), signal_pending(), TASK_INTERRUPTIBLE */
+#include <linux/sched/signal.h> /* schedule(), signal_pending(), TASK_INTERRUPTIBLE */
#include "spk_priv.h"
#include "speakup.h"
diff --git a/drivers/target/iscsi/cxgbit/cxgbit_target.c b/drivers/target/iscsi/cxgbit/cxgbit_target.c
index 8bcb9b71f764..0c3e8fce3695 100644
--- a/drivers/target/iscsi/cxgbit/cxgbit_target.c
+++ b/drivers/target/iscsi/cxgbit/cxgbit_target.c
@@ -8,6 +8,8 @@
#include <linux/workqueue.h>
#include <linux/kthread.h>
+#include <linux/sched/signal.h>
+
#include <asm/unaligned.h>
#include <net/tcp.h>
#include <target/target_core_base.h>
diff --git a/drivers/tty/n_gsm.c b/drivers/tty/n_gsm.c
index f3932baed07d..55577cf9b6a4 100644
--- a/drivers/tty/n_gsm.c
+++ b/drivers/tty/n_gsm.c
@@ -39,7 +39,7 @@
#include <linux/errno.h>
#include <linux/signal.h>
#include <linux/fcntl.h>
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
#include <linux/interrupt.h>
#include <linux/tty.h>
#include <linux/ctype.h>
diff --git a/drivers/tty/serial/crisv10.c b/drivers/tty/serial/crisv10.c
index e92c23470e51..59a2a7e18b5a 100644
--- a/drivers/tty/serial/crisv10.c
+++ b/drivers/tty/serial/crisv10.c
@@ -12,7 +12,7 @@ static char *serial_version = "$Revision: 1.25 $";
#include <linux/types.h>
#include <linux/errno.h>
#include <linux/signal.h>
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
#include <linux/timer.h>
#include <linux/interrupt.h>
#include <linux/tty.h>
diff --git a/drivers/tty/serial/serial_core.c b/drivers/tty/serial/serial_core.c
index 9939c3d9912b..3fe56894974a 100644
--- a/drivers/tty/serial/serial_core.c
+++ b/drivers/tty/serial/serial_core.c
@@ -24,6 +24,7 @@
#include <linux/tty.h>
#include <linux/tty_flip.h>
#include <linux/slab.h>
+#include <linux/sched/signal.h>
#include <linux/init.h>
#include <linux/console.h>
#include <linux/of.h>
diff --git a/drivers/tty/tty_ioctl.c b/drivers/tty/tty_ioctl.c
index f27fc0f14c11..a9a978731c5b 100644
--- a/drivers/tty/tty_ioctl.c
+++ b/drivers/tty/tty_ioctl.c
@@ -9,7 +9,7 @@
#include <linux/types.h>
#include <linux/termios.h>
#include <linux/errno.h>
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
#include <linux/kernel.h>
#include <linux/major.h>
#include <linux/tty.h>
diff --git a/drivers/tty/tty_port.c b/drivers/tty/tty_port.c
index c3f9d93ba227..4def81d30683 100644
--- a/drivers/tty/tty_port.c
+++ b/drivers/tty/tty_port.c
@@ -11,7 +11,7 @@
#include <linux/timer.h>
#include <linux/string.h>
#include <linux/slab.h>
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
#include <linux/wait.h>
#include <linux/bitops.h>
#include <linux/delay.h>
diff --git a/drivers/uio/uio.c b/drivers/uio/uio.c
index fba021f5736a..d31bc204ddf3 100644
--- a/drivers/uio/uio.c
+++ b/drivers/uio/uio.c
@@ -20,7 +20,7 @@
#include <linux/slab.h>
#include <linux/mm.h>
#include <linux/idr.h>
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
#include <linux/string.h>
#include <linux/kobject.h>
#include <linux/cdev.h>
diff --git a/drivers/usb/class/cdc-acm.c b/drivers/usb/class/cdc-acm.c
index e35b1508d3eb..542c044ca882 100644
--- a/drivers/usb/class/cdc-acm.c
+++ b/drivers/usb/class/cdc-acm.c
@@ -32,6 +32,7 @@
#undef VERBOSE_DEBUG
#include <linux/kernel.h>
+#include <linux/sched/signal.h>
#include <linux/errno.h>
#include <linux/init.h>
#include <linux/slab.h>
diff --git a/drivers/usb/class/usblp.c b/drivers/usb/class/usblp.c
index 071964c7847f..cc61055fb9be 100644
--- a/drivers/usb/class/usblp.c
+++ b/drivers/usb/class/usblp.c
@@ -49,7 +49,7 @@
#include <linux/module.h>
#include <linux/kernel.h>
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
#include <linux/signal.h>
#include <linux/poll.h>
#include <linux/slab.h>
diff --git a/drivers/usb/gadget/function/f_fs.c b/drivers/usb/gadget/function/f_fs.c
index 4be13d782204..e2a78eb2dd02 100644
--- a/drivers/usb/gadget/function/f_fs.c
+++ b/drivers/usb/gadget/function/f_fs.c
@@ -23,6 +23,7 @@
#include <linux/export.h>
#include <linux/hid.h>
#include <linux/module.h>
+#include <linux/sched/signal.h>
#include <linux/uio.h>
#include <asm/unaligned.h>
diff --git a/drivers/usb/image/mdc800.c b/drivers/usb/image/mdc800.c
index 5cf2633cdb04..e92540a21b6b 100644
--- a/drivers/usb/image/mdc800.c
+++ b/drivers/usb/image/mdc800.c
@@ -85,7 +85,7 @@
* (20/10/1999)
*/
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
#include <linux/signal.h>
#include <linux/spinlock.h>
#include <linux/errno.h>
diff --git a/drivers/usb/misc/adutux.c b/drivers/usb/misc/adutux.c
index 564268fca07a..417f1fa60cfe 100644
--- a/drivers/usb/misc/adutux.c
+++ b/drivers/usb/misc/adutux.c
@@ -21,6 +21,7 @@
#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
#include <linux/kernel.h>
+#include <linux/sched/signal.h>
#include <linux/errno.h>
#include <linux/slab.h>
#include <linux/module.h>
diff --git a/drivers/usb/misc/idmouse.c b/drivers/usb/misc/idmouse.c
index debc1fd74b0d..8b9fd7534f69 100644
--- a/drivers/usb/misc/idmouse.c
+++ b/drivers/usb/misc/idmouse.c
@@ -17,6 +17,7 @@
*/
#include <linux/kernel.h>
+#include <linux/sched/signal.h>
#include <linux/errno.h>
#include <linux/delay.h>
#include <linux/slab.h>
diff --git a/drivers/usb/misc/rio500.c b/drivers/usb/misc/rio500.c
index fc329c98a6e8..b106ce76997b 100644
--- a/drivers/usb/misc/rio500.c
+++ b/drivers/usb/misc/rio500.c
@@ -31,7 +31,7 @@
#include <linux/module.h>
#include <linux/kernel.h>
#include <linux/signal.h>
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
#include <linux/mutex.h>
#include <linux/errno.h>
#include <linux/random.h>
diff --git a/drivers/usb/misc/uss720.c b/drivers/usb/misc/uss720.c
index 356d312add57..7ec67e322e7d 100644
--- a/drivers/usb/misc/uss720.c
+++ b/drivers/usb/misc/uss720.c
@@ -50,6 +50,7 @@
#include <linux/completion.h>
#include <linux/kref.h>
#include <linux/slab.h>
+#include <linux/sched/signal.h>
/*
* Version Information
diff --git a/drivers/usb/mon/mon_bin.c b/drivers/usb/mon/mon_bin.c
index 91c22276c03b..2f58b3fb20a4 100644
--- a/drivers/usb/mon/mon_bin.c
+++ b/drivers/usb/mon/mon_bin.c
@@ -8,6 +8,7 @@
*/
#include <linux/kernel.h>
+#include <linux/sched/signal.h>
#include <linux/types.h>
#include <linux/fs.h>
#include <linux/cdev.h>
diff --git a/drivers/usb/mon/mon_text.c b/drivers/usb/mon/mon_text.c
index db1a4abf2806..19c416d69eb9 100644
--- a/drivers/usb/mon/mon_text.c
+++ b/drivers/usb/mon/mon_text.c
@@ -8,6 +8,7 @@
#include <linux/list.h>
#include <linux/usb.h>
#include <linux/slab.h>
+#include <linux/sched/signal.h>
#include <linux/time.h>
#include <linux/ktime.h>
#include <linux/export.h>
diff --git a/drivers/usb/serial/digi_acceleport.c b/drivers/usb/serial/digi_acceleport.c
index 6a1df9e824ca..1facb268c9cd 100644
--- a/drivers/usb/serial/digi_acceleport.c
+++ b/drivers/usb/serial/digi_acceleport.c
@@ -27,6 +27,7 @@
#include <linux/uaccess.h>
#include <linux/usb.h>
#include <linux/wait.h>
+#include <linux/sched/signal.h>
#include <linux/usb/serial.h>
/* Defines */
diff --git a/drivers/usb/serial/generic.c b/drivers/usb/serial/generic.c
index 944de657a07a..49ce2be90fa0 100644
--- a/drivers/usb/serial/generic.c
+++ b/drivers/usb/serial/generic.c
@@ -10,6 +10,7 @@
*/
#include <linux/kernel.h>
+#include <linux/sched/signal.h>
#include <linux/errno.h>
#include <linux/slab.h>
#include <linux/sysrq.h>
diff --git a/drivers/vhost/net.c b/drivers/vhost/net.c
index b9deca75ec7d..cc1a1cb65c78 100644
--- a/drivers/vhost/net.c
+++ b/drivers/vhost/net.c
@@ -18,6 +18,7 @@
#include <linux/file.h>
#include <linux/slab.h>
#include <linux/sched/clock.h>
+#include <linux/sched/signal.h>
#include <linux/vmalloc.h>
#include <linux/net.h>
diff --git a/drivers/vhost/vhost.c b/drivers/vhost/vhost.c
index 697d68d7fe20..b95366554eee 100644
--- a/drivers/vhost/vhost.c
+++ b/drivers/vhost/vhost.c
@@ -28,6 +28,7 @@
#include <linux/module.h>
#include <linux/sort.h>
#include <linux/sched/mm.h>
+#include <linux/sched/signal.h>
#include <linux/interval_tree_generic.h>
#include "vhost.h"
diff --git a/drivers/video/fbdev/cobalt_lcdfb.c b/drivers/video/fbdev/cobalt_lcdfb.c
index 038ac6934fe9..9da90bd242f4 100644
--- a/drivers/video/fbdev/cobalt_lcdfb.c
+++ b/drivers/video/fbdev/cobalt_lcdfb.c
@@ -26,6 +26,7 @@
#include <linux/uaccess.h>
#include <linux/platform_device.h>
#include <linux/module.h>
+#include <linux/sched/signal.h>
/*
* Cursor position address
diff --git a/drivers/video/fbdev/omap2/omapfb/displays/panel-dsi-cm.c b/drivers/video/fbdev/omap2/omapfb/displays/panel-dsi-cm.c
index 8b810696a42b..fd2b372d0264 100644
--- a/drivers/video/fbdev/omap2/omapfb/displays/panel-dsi-cm.c
+++ b/drivers/video/fbdev/omap2/omapfb/displays/panel-dsi-cm.c
@@ -19,7 +19,7 @@
#include <linux/jiffies.h>
#include <linux/module.h>
#include <linux/platform_device.h>
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
#include <linux/slab.h>
#include <linux/workqueue.h>
#include <linux/of_device.h>
diff --git a/fs/afs/rxrpc.c b/fs/afs/rxrpc.c
index 25f05a8d21b1..d089565ec1e9 100644
--- a/fs/afs/rxrpc.c
+++ b/fs/afs/rxrpc.c
@@ -10,6 +10,8 @@
*/
#include <linux/slab.h>
+#include <linux/sched/signal.h>
+
#include <net/sock.h>
#include <net/af_rxrpc.h>
#include <rxrpc/packet.h>
diff --git a/fs/aio.c b/fs/aio.c
index 873b4ca82ccb..18f2bcdacbaf 100644
--- a/fs/aio.c
+++ b/fs/aio.c
@@ -20,7 +20,7 @@
#include <linux/backing-dev.h>
#include <linux/uio.h>
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
#include <linux/fs.h>
#include <linux/file.h>
#include <linux/mm.h>
diff --git a/fs/btrfs/ctree.h b/fs/btrfs/ctree.h
index 6a823719b6c5..1e4660f25be1 100644
--- a/fs/btrfs/ctree.h
+++ b/fs/btrfs/ctree.h
@@ -20,6 +20,7 @@
#define __BTRFS_CTREE__
#include <linux/mm.h>
+#include <linux/sched/signal.h>
#include <linux/highmem.h>
#include <linux/fs.h>
#include <linux/rwsem.h>
diff --git a/fs/ceph/caps.c b/fs/ceph/caps.c
index 94fd76d04683..64a0975df71b 100644
--- a/fs/ceph/caps.c
+++ b/fs/ceph/caps.c
@@ -2,7 +2,7 @@
#include <linux/fs.h>
#include <linux/kernel.h>
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
#include <linux/slab.h>
#include <linux/vmalloc.h>
#include <linux/wait.h>
diff --git a/fs/cifs/inode.c b/fs/cifs/inode.c
index 7ab5be7944aa..1858fc20eb7d 100644
--- a/fs/cifs/inode.c
+++ b/fs/cifs/inode.c
@@ -23,6 +23,8 @@
#include <linux/slab.h>
#include <linux/pagemap.h>
#include <linux/freezer.h>
+#include <linux/sched/signal.h>
+
#include <asm/div64.h>
#include "cifsfs.h"
#include "cifspdu.h"
diff --git a/fs/coda/psdev.c b/fs/coda/psdev.c
index 822629126e89..f40e3953e7fe 100644
--- a/fs/coda/psdev.c
+++ b/fs/coda/psdev.c
@@ -22,7 +22,7 @@
#include <linux/kernel.h>
#include <linux/major.h>
#include <linux/time.h>
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
#include <linux/slab.h>
#include <linux/ioport.h>
#include <linux/fcntl.h>
diff --git a/fs/dlm/user.c b/fs/dlm/user.c
index 1ce908c2232c..23488f559cf9 100644
--- a/fs/dlm/user.c
+++ b/fs/dlm/user.c
@@ -17,6 +17,7 @@
#include <linux/dlm.h>
#include <linux/dlm_device.h>
#include <linux/slab.h>
+#include <linux/sched/signal.h>
#include "dlm_internal.h"
#include "lockspace.h"
diff --git a/fs/ecryptfs/read_write.c b/fs/ecryptfs/read_write.c
index 158a3a39f82d..039e627194a9 100644
--- a/fs/ecryptfs/read_write.c
+++ b/fs/ecryptfs/read_write.c
@@ -22,6 +22,8 @@
#include <linux/fs.h>
#include <linux/pagemap.h>
+#include <linux/sched/signal.h>
+
#include "ecryptfs_kernel.h"
/**
diff --git a/fs/eventfd.c b/fs/eventfd.c
index 1231cd1999d8..68b9fffcb2c8 100644
--- a/fs/eventfd.c
+++ b/fs/eventfd.c
@@ -9,7 +9,7 @@
#include <linux/poll.h>
#include <linux/init.h>
#include <linux/fs.h>
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
#include <linux/kernel.h>
#include <linux/slab.h>
#include <linux/list.h>
diff --git a/fs/eventpoll.c b/fs/eventpoll.c
index bcb68fcc8445..86089de68c74 100644
--- a/fs/eventpoll.c
+++ b/fs/eventpoll.c
@@ -13,7 +13,7 @@
#include <linux/init.h>
#include <linux/kernel.h>
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
#include <linux/fs.h>
#include <linux/file.h>
#include <linux/signal.h>
diff --git a/fs/ext4/ext4.h b/fs/ext4/ext4.h
index 2163c1e69f2a..65f5b49c1f67 100644
--- a/fs/ext4/ext4.h
+++ b/fs/ext4/ext4.h
@@ -28,6 +28,7 @@
#include <linux/timer.h>
#include <linux/version.h>
#include <linux/wait.h>
+#include <linux/sched/signal.h>
#include <linux/blockgroup_lock.h>
#include <linux/percpu_counter.h>
#include <linux/ratelimit.h>
diff --git a/fs/f2fs/data.c b/fs/f2fs/data.c
index 9ac262564fa6..c33003a7ed9c 100644
--- a/fs/f2fs/data.c
+++ b/fs/f2fs/data.c
@@ -22,6 +22,7 @@
#include <linux/mm.h>
#include <linux/memcontrol.h>
#include <linux/cleancache.h>
+#include <linux/sched/signal.h>
#include "f2fs.h"
#include "node.h"
diff --git a/fs/fuse/dev.c b/fs/fuse/dev.c
index 4e06a27ed7f8..1cee0de1b328 100644
--- a/fs/fuse/dev.c
+++ b/fs/fuse/dev.c
@@ -11,6 +11,7 @@
#include <linux/init.h>
#include <linux/module.h>
#include <linux/poll.h>
+#include <linux/sched/signal.h>
#include <linux/uio.h>
#include <linux/miscdevice.h>
#include <linux/pagemap.h>
diff --git a/fs/gfs2/lock_dlm.c b/fs/gfs2/lock_dlm.c
index 8b907c5cc913..0515f0a68637 100644
--- a/fs/gfs2/lock_dlm.c
+++ b/fs/gfs2/lock_dlm.c
@@ -15,6 +15,7 @@
#include <linux/types.h>
#include <linux/delay.h>
#include <linux/gfs2_ondisk.h>
+#include <linux/sched/signal.h>
#include "incore.h"
#include "glock.h"
diff --git a/fs/gfs2/super.c b/fs/gfs2/super.c
index e3ee387a6dfe..361796a84fce 100644
--- a/fs/gfs2/super.c
+++ b/fs/gfs2/super.c
@@ -10,7 +10,7 @@
#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
#include <linux/bio.h>
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
#include <linux/slab.h>
#include <linux/spinlock.h>
#include <linux/completion.h>
diff --git a/fs/hpfs/hpfs_fn.h b/fs/hpfs/hpfs_fn.h
index aebb78f9e47f..d352f3a6af7f 100644
--- a/fs/hpfs/hpfs_fn.h
+++ b/fs/hpfs/hpfs_fn.h
@@ -18,7 +18,7 @@
#include <linux/pagemap.h>
#include <linux/buffer_head.h>
#include <linux/slab.h>
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
#include <linux/blkdev.h>
#include <asm/unaligned.h>
diff --git a/fs/hugetlbfs/inode.c b/fs/hugetlbfs/inode.c
index 54de77e78775..8f96461236f6 100644
--- a/fs/hugetlbfs/inode.c
+++ b/fs/hugetlbfs/inode.c
@@ -11,7 +11,7 @@
#include <linux/thread_info.h>
#include <asm/current.h>
-#include <linux/sched.h> /* remove ASAP */
+#include <linux/sched/signal.h> /* remove ASAP */
#include <linux/falloc.h>
#include <linux/fs.h>
#include <linux/mount.h>
diff --git a/fs/jffs2/nodemgmt.c b/fs/jffs2/nodemgmt.c
index cda0774c2c9c..a7bbe879cfc3 100644
--- a/fs/jffs2/nodemgmt.c
+++ b/fs/jffs2/nodemgmt.c
@@ -14,7 +14,7 @@
#include <linux/kernel.h>
#include <linux/mtd/mtd.h>
#include <linux/compiler.h>
-#include <linux/sched.h> /* For cond_resched() */
+#include <linux/sched/signal.h>
#include "nodelist.h"
#include "debug.h"
diff --git a/fs/nfs/inode.c b/fs/nfs/inode.c
index 5ca4d96b1942..685565b229c3 100644
--- a/fs/nfs/inode.c
+++ b/fs/nfs/inode.c
@@ -15,7 +15,7 @@
#include <linux/module.h>
#include <linux/init.h>
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
#include <linux/time.h>
#include <linux/kernel.h>
#include <linux/mm.h>
diff --git a/fs/nilfs2/segment.c b/fs/nilfs2/segment.c
index bedcae2c28e6..5cc953835a4a 100644
--- a/fs/nilfs2/segment.c
+++ b/fs/nilfs2/segment.c
@@ -30,6 +30,8 @@
#include <linux/crc32.h>
#include <linux/pagevec.h>
#include <linux/slab.h>
+#include <linux/sched/signal.h>
+
#include "nilfs.h"
#include "btnode.h"
#include "page.h"
diff --git a/fs/notify/fanotify/fanotify_user.c b/fs/notify/fanotify/fanotify_user.c
index 7ebfca6a1427..2b37f2785834 100644
--- a/fs/notify/fanotify/fanotify_user.c
+++ b/fs/notify/fanotify/fanotify_user.c
@@ -14,6 +14,7 @@
#include <linux/types.h>
#include <linux/uaccess.h>
#include <linux/compat.h>
+#include <linux/sched/signal.h>
#include <asm/ioctls.h>
diff --git a/fs/notify/inotify/inotify_user.c b/fs/notify/inotify/inotify_user.c
index 69d1ea3d292a..e16bd9e4116f 100644
--- a/fs/notify/inotify/inotify_user.c
+++ b/fs/notify/inotify/inotify_user.c
@@ -30,7 +30,7 @@
#include <linux/inotify.h>
#include <linux/kernel.h> /* roundup() */
#include <linux/namei.h> /* LOOKUP_FOLLOW */
-#include <linux/sched.h> /* struct user */
+#include <linux/sched/signal.h>
#include <linux/slab.h> /* struct kmem_cache */
#include <linux/syscalls.h>
#include <linux/types.h>
diff --git a/fs/ntfs/file.c b/fs/ntfs/file.c
index 358ed7e1195a..c4f68c338735 100644
--- a/fs/ntfs/file.c
+++ b/fs/ntfs/file.c
@@ -24,7 +24,7 @@
#include <linux/gfp.h>
#include <linux/pagemap.h>
#include <linux/pagevec.h>
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
#include <linux/swap.h>
#include <linux/uio.h>
#include <linux/writeback.h>
diff --git a/fs/ocfs2/alloc.c b/fs/ocfs2/alloc.c
index d4ec0d8961a6..fb15a96df0b6 100644
--- a/fs/ocfs2/alloc.c
+++ b/fs/ocfs2/alloc.c
@@ -30,6 +30,7 @@
#include <linux/swap.h>
#include <linux/quotaops.h>
#include <linux/blkdev.h>
+#include <linux/sched/signal.h>
#include <cluster/masklog.h>
diff --git a/fs/ocfs2/dlm/dlmdomain.c b/fs/ocfs2/dlm/dlmdomain.c
index 32fd261ae13d..a2b19fbdcf46 100644
--- a/fs/ocfs2/dlm/dlmdomain.c
+++ b/fs/ocfs2/dlm/dlmdomain.c
@@ -33,6 +33,7 @@
#include <linux/delay.h>
#include <linux/err.h>
#include <linux/debugfs.h>
+#include <linux/sched/signal.h>
#include "cluster/heartbeat.h"
#include "cluster/nodemanager.h"
diff --git a/fs/ocfs2/dlmfs/userdlm.c b/fs/ocfs2/dlmfs/userdlm.c
index f70cda2f090d..9cecf4857195 100644
--- a/fs/ocfs2/dlmfs/userdlm.c
+++ b/fs/ocfs2/dlmfs/userdlm.c
@@ -28,6 +28,7 @@
*/
#include <linux/signal.h>
+#include <linux/sched/signal.h>
#include <linux/module.h>
#include <linux/fs.h>
diff --git a/fs/ocfs2/dlmglue.c b/fs/ocfs2/dlmglue.c
index 77d1632e905d..ce45c868de18 100644
--- a/fs/ocfs2/dlmglue.c
+++ b/fs/ocfs2/dlmglue.c
@@ -33,6 +33,7 @@
#include <linux/seq_file.h>
#include <linux/time.h>
#include <linux/quotaops.h>
+#include <linux/sched/signal.h>
#define MLOG_MASK_PREFIX ML_DLM_GLUE
#include <cluster/masklog.h>
diff --git a/fs/orangefs/orangefs-kernel.h b/fs/orangefs/orangefs-kernel.h
index 3bf803d732c5..ff60c5247d61 100644
--- a/fs/orangefs/orangefs-kernel.h
+++ b/fs/orangefs/orangefs-kernel.h
@@ -41,7 +41,7 @@
#include <linux/uaccess.h>
#include <linux/atomic.h>
#include <linux/uio.h>
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
#include <linux/mm.h>
#include <linux/wait.h>
#include <linux/dcache.h>
diff --git a/fs/overlayfs/copy_up.c b/fs/overlayfs/copy_up.c
index 53d3f830358f..a34aa7aa2563 100644
--- a/fs/overlayfs/copy_up.c
+++ b/fs/overlayfs/copy_up.c
@@ -15,7 +15,7 @@
#include <linux/xattr.h>
#include <linux/security.h>
#include <linux/uaccess.h>
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
#include <linux/cred.h>
#include <linux/namei.h>
#include <linux/fdtable.h>
diff --git a/fs/splice.c b/fs/splice.c
index 873d83104e79..9ec8de94f561 100644
--- a/fs/splice.c
+++ b/fs/splice.c
@@ -33,6 +33,8 @@
#include <linux/gfp.h>
#include <linux/socket.h>
#include <linux/compat.h>
+#include <linux/sched/signal.h>
+
#include "internal.h"
/*
diff --git a/fs/userfaultfd.c b/fs/userfaultfd.c
index cd94de7f7bd6..5931c1928889 100644
--- a/fs/userfaultfd.c
+++ b/fs/userfaultfd.c
@@ -13,7 +13,7 @@
*/
#include <linux/hashtable.h>
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
#include <linux/sched/mm.h>
#include <linux/mm.h>
#include <linux/poll.h>
diff --git a/fs/xfs/xfs_linux.h b/fs/xfs/xfs_linux.h
index 7a989de224f4..592fdf7111cb 100644
--- a/fs/xfs/xfs_linux.h
+++ b/fs/xfs/xfs_linux.h
@@ -55,7 +55,7 @@ typedef __u32 xfs_nlink_t;
#include <linux/file.h>
#include <linux/swap.h>
#include <linux/errno.h>
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
#include <linux/bitops.h>
#include <linux/major.h>
#include <linux/pagemap.h>
diff --git a/include/drm/drm_os_linux.h b/include/drm/drm_os_linux.h
index 86ab99bc0ac5..35e1482ba8a1 100644
--- a/include/drm/drm_os_linux.h
+++ b/include/drm/drm_os_linux.h
@@ -4,6 +4,7 @@
*/
#include <linux/interrupt.h> /* For task queue support */
+#include <linux/sched/signal.h>
#include <linux/delay.h>
#ifndef readq
diff --git a/include/linux/sched.h b/include/linux/sched.h
index 0f5cf0760341..c2bfc13cf9cd 100644
--- a/include/linux/sched.h
+++ b/include/linux/sched.h
@@ -1931,37 +1931,6 @@ static inline int test_tsk_need_resched(struct task_struct *tsk)
return unlikely(test_tsk_thread_flag(tsk,TIF_NEED_RESCHED));
}
-static inline int restart_syscall(void)
-{
- set_tsk_thread_flag(current, TIF_SIGPENDING);
- return -ERESTARTNOINTR;
-}
-
-static inline int signal_pending(struct task_struct *p)
-{
- return unlikely(test_tsk_thread_flag(p,TIF_SIGPENDING));
-}
-
-static inline int __fatal_signal_pending(struct task_struct *p)
-{
- return unlikely(sigismember(&p->pending.signal, SIGKILL));
-}
-
-static inline int fatal_signal_pending(struct task_struct *p)
-{
- return signal_pending(p) && __fatal_signal_pending(p);
-}
-
-static inline int signal_pending_state(long state, struct task_struct *p)
-{
- if (!(state & (TASK_INTERRUPTIBLE | TASK_WAKEKILL)))
- return 0;
- if (!signal_pending(p))
- return 0;
-
- return (state & TASK_INTERRUPTIBLE) || __fatal_signal_pending(p);
-}
-
/*
* cond_resched() and cond_resched_lock(): latency reduction via
* explicit rescheduling in places that are safe. The return
@@ -2038,26 +2007,6 @@ void thread_group_cputime(struct task_struct *tsk, struct task_cputime *times);
void thread_group_cputimer(struct task_struct *tsk, struct task_cputime *times);
/*
- * Reevaluate whether the task has signals pending delivery.
- * Wake the task if so.
- * This is required every time the blocked sigset_t changes.
- * callers must hold sighand->siglock.
- */
-extern void recalc_sigpending_and_wake(struct task_struct *t);
-extern void recalc_sigpending(void);
-
-extern void signal_wake_up_state(struct task_struct *t, unsigned int state);
-
-static inline void signal_wake_up(struct task_struct *t, bool resume)
-{
- signal_wake_up_state(t, resume ? TASK_WAKEKILL : 0);
-}
-static inline void ptrace_signal_wake_up(struct task_struct *t, bool resume)
-{
- signal_wake_up_state(t, resume ? __TASK_TRACED : 0);
-}
-
-/*
* Wrappers for p->thread_info->cpu access. No-op on UP.
*/
#ifdef CONFIG_SMP
diff --git a/include/linux/sched/signal.h b/include/linux/sched/signal.h
index e19e749d2529..3841cd2e794d 100644
--- a/include/linux/sched/signal.h
+++ b/include/linux/sched/signal.h
@@ -1,9 +1,9 @@
#ifndef _LINUX_SCHED_SIGNAL_H
#define _LINUX_SCHED_SIGNAL_H
-#include <linux/cred.h>
#include <linux/sched.h>
#include <linux/sched/jobctl.h>
+#include <linux/cred.h>
/*
* Types defining task->signal and task->sighand and APIs using them:
@@ -268,6 +268,57 @@ extern void sigqueue_free(struct sigqueue *);
extern int send_sigqueue(struct sigqueue *, struct task_struct *, int group);
extern int do_sigaction(int, struct k_sigaction *, struct k_sigaction *);
+static inline int restart_syscall(void)
+{
+ set_tsk_thread_flag(current, TIF_SIGPENDING);
+ return -ERESTARTNOINTR;
+}
+
+static inline int signal_pending(struct task_struct *p)
+{
+ return unlikely(test_tsk_thread_flag(p,TIF_SIGPENDING));
+}
+
+static inline int __fatal_signal_pending(struct task_struct *p)
+{
+ return unlikely(sigismember(&p->pending.signal, SIGKILL));
+}
+
+static inline int fatal_signal_pending(struct task_struct *p)
+{
+ return signal_pending(p) && __fatal_signal_pending(p);
+}
+
+static inline int signal_pending_state(long state, struct task_struct *p)
+{
+ if (!(state & (TASK_INTERRUPTIBLE | TASK_WAKEKILL)))
+ return 0;
+ if (!signal_pending(p))
+ return 0;
+
+ return (state & TASK_INTERRUPTIBLE) || __fatal_signal_pending(p);
+}
+
+/*
+ * Reevaluate whether the task has signals pending delivery.
+ * Wake the task if so.
+ * This is required every time the blocked sigset_t changes.
+ * callers must hold sighand->siglock.
+ */
+extern void recalc_sigpending_and_wake(struct task_struct *t);
+extern void recalc_sigpending(void);
+
+extern void signal_wake_up_state(struct task_struct *t, unsigned int state);
+
+static inline void signal_wake_up(struct task_struct *t, bool resume)
+{
+ signal_wake_up_state(t, resume ? TASK_WAKEKILL : 0);
+}
+static inline void ptrace_signal_wake_up(struct task_struct *t, bool resume)
+{
+ signal_wake_up_state(t, resume ? __TASK_TRACED : 0);
+}
+
#ifdef TIF_RESTORE_SIGMASK
/*
* Legacy restore_sigmask accessors. These are inefficient on
diff --git a/include/linux/sunrpc/types.h b/include/linux/sunrpc/types.h
index d222f47550af..11a7536c0fd2 100644
--- a/include/linux/sunrpc/types.h
+++ b/include/linux/sunrpc/types.h
@@ -10,6 +10,7 @@
#define _LINUX_SUNRPC_TYPES_H_
#include <linux/timer.h>
+#include <linux/sched/signal.h>
#include <linux/workqueue.h>
#include <linux/sunrpc/debug.h>
#include <linux/list.h>
diff --git a/include/media/v4l2-ioctl.h b/include/media/v4l2-ioctl.h
index 574ff2ae94be..6cd94e5ee113 100644
--- a/include/media/v4l2-ioctl.h
+++ b/include/media/v4l2-ioctl.h
@@ -12,6 +12,7 @@
#include <linux/poll.h>
#include <linux/fs.h>
#include <linux/mutex.h>
+#include <linux/sched/signal.h>
#include <linux/compiler.h> /* need __user */
#include <linux/videodev2.h>
diff --git a/include/net/busy_poll.h b/include/net/busy_poll.h
index ec624c6b0a03..cbc1743ff4a8 100644
--- a/include/net/busy_poll.h
+++ b/include/net/busy_poll.h
@@ -26,6 +26,7 @@
#include <linux/netdevice.h>
#include <linux/sched/clock.h>
+#include <linux/sched/signal.h>
#include <net/ip.h>
#ifdef CONFIG_NET_RX_BUSY_POLL
diff --git a/kernel/locking/mutex.c b/kernel/locking/mutex.c
index 57f6311e2405..82ff5726bc1b 100644
--- a/kernel/locking/mutex.c
+++ b/kernel/locking/mutex.c
@@ -19,7 +19,7 @@
*/
#include <linux/mutex.h>
#include <linux/ww_mutex.h>
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
#include <linux/sched/rt.h>
#include <linux/sched/wake_q.h>
#include <linux/export.h>
diff --git a/kernel/locking/rtmutex.c b/kernel/locking/rtmutex.c
index d4f798491361..1c8c8707853a 100644
--- a/kernel/locking/rtmutex.c
+++ b/kernel/locking/rtmutex.c
@@ -12,7 +12,7 @@
*/
#include <linux/spinlock.h>
#include <linux/export.h>
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
#include <linux/sched/rt.h>
#include <linux/sched/deadline.h>
#include <linux/sched/wake_q.h>
diff --git a/kernel/locking/rwsem-spinlock.c b/kernel/locking/rwsem-spinlock.c
index 5eacab880f67..91e7bc8e9d5a 100644
--- a/kernel/locking/rwsem-spinlock.c
+++ b/kernel/locking/rwsem-spinlock.c
@@ -6,7 +6,7 @@
* - Derived also from comments by Linus
*/
#include <linux/rwsem.h>
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
#include <linux/export.h>
enum rwsem_waiter_type {
diff --git a/kernel/locking/rwsem-xadd.c b/kernel/locking/rwsem-xadd.c
index 4fe8d8ad4396..9bd6e768164e 100644
--- a/kernel/locking/rwsem-xadd.c
+++ b/kernel/locking/rwsem-xadd.c
@@ -12,7 +12,7 @@
#include <linux/rwsem.h>
#include <linux/init.h>
#include <linux/export.h>
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
#include <linux/sched/rt.h>
#include <linux/sched/wake_q.h>
#include <linux/osq_lock.h>
diff --git a/kernel/rcu/rcutorture.c b/kernel/rcu/rcutorture.c
index d712760f9397..3c3ce6162e2a 100644
--- a/kernel/rcu/rcutorture.c
+++ b/kernel/rcu/rcutorture.c
@@ -32,7 +32,7 @@
#include <linux/smp.h>
#include <linux/rcupdate.h>
#include <linux/interrupt.h>
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
#include <uapi/linux/sched/types.h>
#include <linux/atomic.h>
#include <linux/bitops.h>
diff --git a/kernel/sched/completion.c b/kernel/sched/completion.c
index f063a25d4449..b294a8ee2842 100644
--- a/kernel/sched/completion.c
+++ b/kernel/sched/completion.c
@@ -11,7 +11,7 @@
* Waiting for completion is a typically sync point, but not an exclusion point.
*/
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
#include <linux/completion.h>
/**
diff --git a/kernel/sched/swait.c b/kernel/sched/swait.c
index 82f0dff90030..3d5610dcce11 100644
--- a/kernel/sched/swait.c
+++ b/kernel/sched/swait.c
@@ -1,4 +1,4 @@
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
#include <linux/swait.h>
void __init_swait_queue_head(struct swait_queue_head *q, const char *name,
diff --git a/kernel/sched/wait.c b/kernel/sched/wait.c
index 9453efe9b25a..1fedfcf6fc9b 100644
--- a/kernel/sched/wait.c
+++ b/kernel/sched/wait.c
@@ -5,7 +5,7 @@
*/
#include <linux/init.h>
#include <linux/export.h>
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
#include <linux/mm.h>
#include <linux/wait.h>
#include <linux/hash.h>
diff --git a/kernel/time/alarmtimer.c b/kernel/time/alarmtimer.c
index e6dc9a538efa..04939053c823 100644
--- a/kernel/time/alarmtimer.c
+++ b/kernel/time/alarmtimer.c
@@ -19,6 +19,7 @@
#include <linux/hrtimer.h>
#include <linux/timerqueue.h>
#include <linux/rtc.h>
+#include <linux/sched/signal.h>
#include <linux/alarmtimer.h>
#include <linux/mutex.h>
#include <linux/platform_device.h>
diff --git a/kernel/time/hrtimer.c b/kernel/time/hrtimer.c
index c6ecedd3b839..6e36467b678f 100644
--- a/kernel/time/hrtimer.c
+++ b/kernel/time/hrtimer.c
@@ -43,7 +43,7 @@
#include <linux/seq_file.h>
#include <linux/err.h>
#include <linux/debugobjects.h>
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
#include <linux/sched/sysctl.h>
#include <linux/sched/rt.h>
#include <linux/sched/deadline.h>
diff --git a/kernel/time/timer.c b/kernel/time/timer.c
index ec33a6933eae..c78f2b3e076e 100644
--- a/kernel/time/timer.c
+++ b/kernel/time/timer.c
@@ -38,7 +38,7 @@
#include <linux/tick.h>
#include <linux/kallsyms.h>
#include <linux/irq_work.h>
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
#include <linux/sched/sysctl.h>
#include <linux/slab.h>
#include <linux/compat.h>
diff --git a/lib/percpu_ida.c b/lib/percpu_ida.c
index 6d40944960de..010410990bc6 100644
--- a/lib/percpu_ida.c
+++ b/lib/percpu_ida.c
@@ -22,7 +22,7 @@
#include <linux/init.h>
#include <linux/kernel.h>
#include <linux/percpu.h>
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
#include <linux/string.h>
#include <linux/spinlock.h>
#include <linux/percpu_ida.h>
diff --git a/mm/compaction.c b/mm/compaction.c
index 949198d01260..ad59df6ee535 100644
--- a/mm/compaction.c
+++ b/mm/compaction.c
@@ -12,6 +12,7 @@
#include <linux/migrate.h>
#include <linux/compaction.h>
#include <linux/mm_inline.h>
+#include <linux/sched/signal.h>
#include <linux/backing-dev.h>
#include <linux/sysctl.h>
#include <linux/sysfs.h>
diff --git a/mm/gup.c b/mm/gup.c
index 55315555489d..30a55586bdac 100644
--- a/mm/gup.c
+++ b/mm/gup.c
@@ -10,7 +10,7 @@
#include <linux/swap.h>
#include <linux/swapops.h>
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
#include <linux/rwsem.h>
#include <linux/hugetlb.h>
diff --git a/mm/hugetlb.c b/mm/hugetlb.c
index c7025c132670..3d46bd3eb425 100644
--- a/mm/hugetlb.c
+++ b/mm/hugetlb.c
@@ -18,6 +18,7 @@
#include <linux/bootmem.h>
#include <linux/sysfs.h>
#include <linux/slab.h>
+#include <linux/sched/signal.h>
#include <linux/rmap.h>
#include <linux/swap.h>
#include <linux/swapops.h>
diff --git a/mm/memory_hotplug.c b/mm/memory_hotplug.c
index ca2723d47338..06ab657064a4 100644
--- a/mm/memory_hotplug.c
+++ b/mm/memory_hotplug.c
@@ -6,6 +6,7 @@
#include <linux/stddef.h>
#include <linux/mm.h>
+#include <linux/sched/signal.h>
#include <linux/swap.h>
#include <linux/interrupt.h>
#include <linux/pagemap.h>
diff --git a/mm/shmem.c b/mm/shmem.c
index bb53285a1d99..5d78dea8420c 100644
--- a/mm/shmem.c
+++ b/mm/shmem.c
@@ -29,6 +29,7 @@
#include <linux/pagemap.h>
#include <linux/file.h>
#include <linux/mm.h>
+#include <linux/sched/signal.h>
#include <linux/export.h>
#include <linux/swap.h>
#include <linux/uio.h>
diff --git a/mm/userfaultfd.c b/mm/userfaultfd.c
index af817e5060fb..704531fe724a 100644
--- a/mm/userfaultfd.c
+++ b/mm/userfaultfd.c
@@ -8,6 +8,7 @@
*/
#include <linux/mm.h>
+#include <linux/sched/signal.h>
#include <linux/pagemap.h>
#include <linux/rmap.h>
#include <linux/swap.h>
diff --git a/net/atm/svc.c b/net/atm/svc.c
index 878563a8354d..db9794ec61d8 100644
--- a/net/atm/svc.c
+++ b/net/atm/svc.c
@@ -10,7 +10,7 @@
#include <linux/kernel.h> /* printk */
#include <linux/skbuff.h>
#include <linux/wait.h>
-#include <linux/sched.h> /* jiffies and HZ */
+#include <linux/sched/signal.h>
#include <linux/fcntl.h> /* O_NONBLOCK */
#include <linux/init.h>
#include <linux/atm.h> /* ATM stuff */
diff --git a/net/bluetooth/af_bluetooth.c b/net/bluetooth/af_bluetooth.c
index 1aff2da9bc74..6255daad6ee1 100644
--- a/net/bluetooth/af_bluetooth.c
+++ b/net/bluetooth/af_bluetooth.c
@@ -27,6 +27,8 @@
#include <linux/module.h>
#include <linux/debugfs.h>
#include <linux/stringify.h>
+#include <linux/sched/signal.h>
+
#include <asm/ioctls.h>
#include <net/bluetooth/bluetooth.h>
diff --git a/net/bluetooth/cmtp/capi.c b/net/bluetooth/cmtp/capi.c
index 46ac686c8911..bb308224099c 100644
--- a/net/bluetooth/cmtp/capi.c
+++ b/net/bluetooth/cmtp/capi.c
@@ -26,7 +26,7 @@
#include <linux/types.h>
#include <linux/errno.h>
#include <linux/kernel.h>
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
#include <linux/slab.h>
#include <linux/poll.h>
#include <linux/fcntl.h>
diff --git a/net/bluetooth/hci_request.c b/net/bluetooth/hci_request.c
index 1015d9c8d97d..b5faff458d8b 100644
--- a/net/bluetooth/hci_request.c
+++ b/net/bluetooth/hci_request.c
@@ -21,6 +21,8 @@
SOFTWARE IS DISCLAIMED.
*/
+#include <linux/sched/signal.h>
+
#include <net/bluetooth/bluetooth.h>
#include <net/bluetooth/hci_core.h>
#include <net/bluetooth/mgmt.h>
diff --git a/net/bluetooth/l2cap_sock.c b/net/bluetooth/l2cap_sock.c
index a8ba752732c9..f307b145ea54 100644
--- a/net/bluetooth/l2cap_sock.c
+++ b/net/bluetooth/l2cap_sock.c
@@ -29,6 +29,7 @@
#include <linux/module.h>
#include <linux/export.h>
+#include <linux/sched/signal.h>
#include <net/bluetooth/bluetooth.h>
#include <net/bluetooth/hci_core.h>
diff --git a/net/bluetooth/rfcomm/sock.c b/net/bluetooth/rfcomm/sock.c
index 7511df72347f..aa1a814ceddc 100644
--- a/net/bluetooth/rfcomm/sock.c
+++ b/net/bluetooth/rfcomm/sock.c
@@ -27,6 +27,7 @@
#include <linux/export.h>
#include <linux/debugfs.h>
+#include <linux/sched/signal.h>
#include <net/bluetooth/bluetooth.h>
#include <net/bluetooth/hci_core.h>
diff --git a/net/bluetooth/sco.c b/net/bluetooth/sco.c
index 3125ce670c2f..e4e9a2da1e7e 100644
--- a/net/bluetooth/sco.c
+++ b/net/bluetooth/sco.c
@@ -27,6 +27,7 @@
#include <linux/module.h>
#include <linux/debugfs.h>
#include <linux/seq_file.h>
+#include <linux/sched/signal.h>
#include <net/bluetooth/bluetooth.h>
#include <net/bluetooth/hci_core.h>
diff --git a/net/bridge/br_sysfs_br.c b/net/bridge/br_sysfs_br.c
index a18148213b08..f731a5640e30 100644
--- a/net/bridge/br_sysfs_br.c
+++ b/net/bridge/br_sysfs_br.c
@@ -19,6 +19,7 @@
#include <linux/rtnetlink.h>
#include <linux/spinlock.h>
#include <linux/times.h>
+#include <linux/sched/signal.h>
#include "br_private.h"
diff --git a/net/bridge/br_sysfs_if.c b/net/bridge/br_sysfs_if.c
index 8bd569695e76..e5c14ad98971 100644
--- a/net/bridge/br_sysfs_if.c
+++ b/net/bridge/br_sysfs_if.c
@@ -17,6 +17,7 @@
#include <linux/if_bridge.h>
#include <linux/rtnetlink.h>
#include <linux/spinlock.h>
+#include <linux/sched/signal.h>
#include "br_private.h"
diff --git a/net/core/ethtool.c b/net/core/ethtool.c
index 236a21e3c878..a31aee84c7b5 100644
--- a/net/core/ethtool.c
+++ b/net/core/ethtool.c
@@ -24,7 +24,7 @@
#include <linux/vmalloc.h>
#include <linux/slab.h>
#include <linux/rtnetlink.h>
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
#include <linux/net.h>
/*
diff --git a/net/core/net-sysfs.c b/net/core/net-sysfs.c
index b0c04cf4851d..3945821e9c1f 100644
--- a/net/core/net-sysfs.c
+++ b/net/core/net-sysfs.c
@@ -15,6 +15,7 @@
#include <net/switchdev.h>
#include <linux/if_arp.h>
#include <linux/slab.h>
+#include <linux/sched/signal.h>
#include <linux/nsproxy.h>
#include <net/sock.h>
#include <net/net_namespace.h>
diff --git a/net/dccp/output.c b/net/dccp/output.c
index b66c84db0766..91a15b3c4915 100644
--- a/net/dccp/output.c
+++ b/net/dccp/output.c
@@ -14,6 +14,7 @@
#include <linux/kernel.h>
#include <linux/skbuff.h>
#include <linux/slab.h>
+#include <linux/sched/signal.h>
#include <net/inet_sock.h>
#include <net/sock.h>
diff --git a/net/ipv4/devinet.c b/net/ipv4/devinet.c
index 4cd2ee8857d2..39e15c7abee9 100644
--- a/net/ipv4/devinet.c
+++ b/net/ipv4/devinet.c
@@ -32,6 +32,7 @@
#include <linux/module.h>
#include <linux/types.h>
#include <linux/kernel.h>
+#include <linux/sched/signal.h>
#include <linux/string.h>
#include <linux/mm.h>
#include <linux/socket.h>
diff --git a/net/ipv6/addrconf.c b/net/ipv6/addrconf.c
index f60e88e56255..a78757e80f72 100644
--- a/net/ipv6/addrconf.c
+++ b/net/ipv6/addrconf.c
@@ -43,6 +43,7 @@
#include <linux/errno.h>
#include <linux/types.h>
#include <linux/kernel.h>
+#include <linux/sched/signal.h>
#include <linux/socket.h>
#include <linux/sockios.h>
#include <linux/net.h>
diff --git a/net/irda/ircomm/ircomm_tty.c b/net/irda/ircomm/ircomm_tty.c
index 817b1b186aff..f6061c4bb0a8 100644
--- a/net/irda/ircomm/ircomm_tty.c
+++ b/net/irda/ircomm/ircomm_tty.c
@@ -32,7 +32,7 @@
#include <linux/module.h>
#include <linux/fs.h>
#include <linux/slab.h>
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
#include <linux/seq_file.h>
#include <linux/termios.h>
#include <linux/tty.h>
diff --git a/net/irda/irnet/irnet_ppp.c b/net/irda/irnet/irnet_ppp.c
index 1215693fdd22..99b540acdd47 100644
--- a/net/irda/irnet/irnet_ppp.c
+++ b/net/irda/irnet/irnet_ppp.c
@@ -13,8 +13,9 @@
* 2) as a control channel (write commands, read events)
*/
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
#include <linux/slab.h>
+
#include "irnet_ppp.h" /* Private header */
/* Please put other headers in irnet.h - Thanks */
diff --git a/net/iucv/af_iucv.c b/net/iucv/af_iucv.c
index 13190b38f22e..89bbde1081ce 100644
--- a/net/iucv/af_iucv.c
+++ b/net/iucv/af_iucv.c
@@ -17,7 +17,7 @@
#include <linux/list.h>
#include <linux/errno.h>
#include <linux/kernel.h>
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
#include <linux/slab.h>
#include <linux/skbuff.h>
#include <linux/init.h>
diff --git a/net/kcm/kcmsock.c b/net/kcm/kcmsock.c
index 7e08a4d3d77d..aa1621c11a96 100644
--- a/net/kcm/kcmsock.c
+++ b/net/kcm/kcmsock.c
@@ -24,6 +24,8 @@
#include <linux/uaccess.h>
#include <linux/workqueue.h>
#include <linux/syscalls.h>
+#include <linux/sched/signal.h>
+
#include <net/kcm.h>
#include <net/netns/generic.h>
#include <net/sock.h>
diff --git a/net/llc/af_llc.c b/net/llc/af_llc.c
index 5e9296382420..06186d608a27 100644
--- a/net/llc/af_llc.c
+++ b/net/llc/af_llc.c
@@ -26,6 +26,8 @@
#include <linux/rtnetlink.h>
#include <linux/init.h>
#include <linux/slab.h>
+#include <linux/sched/signal.h>
+
#include <net/llc.h>
#include <net/llc_sap.h>
#include <net/llc_pdu.h>
diff --git a/net/nfc/llcp_sock.c b/net/nfc/llcp_sock.c
index b9edf5fae6ae..879885b31cce 100644
--- a/net/nfc/llcp_sock.c
+++ b/net/nfc/llcp_sock.c
@@ -21,6 +21,7 @@
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/nfc.h>
+#include <linux/sched/signal.h>
#include "nfc.h"
#include "llcp.h"
diff --git a/net/phonet/pep.c b/net/phonet/pep.c
index 8bad5624a27a..222bedcd9575 100644
--- a/net/phonet/pep.c
+++ b/net/phonet/pep.c
@@ -23,6 +23,7 @@
*/
#include <linux/kernel.h>
+#include <linux/sched/signal.h>
#include <linux/slab.h>
#include <linux/socket.h>
#include <net/sock.h>
diff --git a/net/phonet/socket.c b/net/phonet/socket.c
index ffd5f2297584..a6c8da3ee893 100644
--- a/net/phonet/socket.c
+++ b/net/phonet/socket.c
@@ -27,6 +27,8 @@
#include <linux/kernel.h>
#include <linux/net.h>
#include <linux/poll.h>
+#include <linux/sched/signal.h>
+
#include <net/sock.h>
#include <net/tcp_states.h>
diff --git a/net/rxrpc/conn_client.c b/net/rxrpc/conn_client.c
index 6cbcdcc29853..cfad103c12ee 100644
--- a/net/rxrpc/conn_client.c
+++ b/net/rxrpc/conn_client.c
@@ -76,6 +76,8 @@
#include <linux/slab.h>
#include <linux/idr.h>
#include <linux/timer.h>
+#include <linux/sched/signal.h>
+
#include "ar-internal.h"
__read_mostly unsigned int rxrpc_max_client_connections = 1000;
diff --git a/net/rxrpc/recvmsg.c b/net/rxrpc/recvmsg.c
index c29362d50a92..a4c8f529185b 100644
--- a/net/rxrpc/recvmsg.c
+++ b/net/rxrpc/recvmsg.c
@@ -14,6 +14,8 @@
#include <linux/net.h>
#include <linux/skbuff.h>
#include <linux/export.h>
+#include <linux/sched/signal.h>
+
#include <net/sock.h>
#include <net/af_rxrpc.h>
#include "ar-internal.h"
diff --git a/net/rxrpc/sendmsg.c b/net/rxrpc/sendmsg.c
index b214a4d4a641..24cef3366b2d 100644
--- a/net/rxrpc/sendmsg.c
+++ b/net/rxrpc/sendmsg.c
@@ -15,6 +15,8 @@
#include <linux/gfp.h>
#include <linux/skbuff.h>
#include <linux/export.h>
+#include <linux/sched/signal.h>
+
#include <net/sock.h>
#include <net/af_rxrpc.h>
#include "ar-internal.h"
diff --git a/net/tipc/socket.c b/net/tipc/socket.c
index 800caaa699a1..98b533327090 100644
--- a/net/tipc/socket.c
+++ b/net/tipc/socket.c
@@ -35,6 +35,8 @@
*/
#include <linux/rhashtable.h>
+#include <linux/sched/signal.h>
+
#include "core.h"
#include "name_table.h"
#include "node.h"
diff --git a/net/vmw_vsock/af_vsock.c b/net/vmw_vsock/af_vsock.c
index 8a398b3fb532..9192ead66751 100644
--- a/net/vmw_vsock/af_vsock.c
+++ b/net/vmw_vsock/af_vsock.c
@@ -90,6 +90,7 @@
#include <linux/init.h>
#include <linux/io.h>
#include <linux/kernel.h>
+#include <linux/sched/signal.h>
#include <linux/kmod.h>
#include <linux/list.h>
#include <linux/miscdevice.h>
diff --git a/net/vmw_vsock/virtio_transport_common.c b/net/vmw_vsock/virtio_transport_common.c
index 849c4ad0411e..8d592a45b597 100644
--- a/net/vmw_vsock/virtio_transport_common.c
+++ b/net/vmw_vsock/virtio_transport_common.c
@@ -9,6 +9,7 @@
*/
#include <linux/spinlock.h>
#include <linux/module.h>
+#include <linux/sched/signal.h>
#include <linux/ctype.h>
#include <linux/list.h>
#include <linux/virtio.h>
diff --git a/sound/core/control.c b/sound/core/control.c
index fb096cb20a80..c109b82eef4b 100644
--- a/sound/core/control.c
+++ b/sound/core/control.c
@@ -25,6 +25,7 @@
#include <linux/slab.h>
#include <linux/vmalloc.h>
#include <linux/time.h>
+#include <linux/sched/signal.h>
#include <sound/core.h>
#include <sound/minors.h>
#include <sound/info.h>
diff --git a/sound/core/hwdep.c b/sound/core/hwdep.c
index 36d2416f90d9..9602a7e38d8a 100644
--- a/sound/core/hwdep.c
+++ b/sound/core/hwdep.c
@@ -25,6 +25,7 @@
#include <linux/time.h>
#include <linux/mutex.h>
#include <linux/module.h>
+#include <linux/sched/signal.h>
#include <sound/core.h>
#include <sound/control.h>
#include <sound/minors.h>
diff --git a/sound/core/oss/pcm_oss.c b/sound/core/oss/pcm_oss.c
index 698a01419515..36baf962f9b0 100644
--- a/sound/core/oss/pcm_oss.c
+++ b/sound/core/oss/pcm_oss.c
@@ -28,6 +28,7 @@
#include <linux/init.h>
#include <linux/slab.h>
+#include <linux/sched/signal.h>
#include <linux/time.h>
#include <linux/vmalloc.h>
#include <linux/module.h>
diff --git a/sound/core/pcm_lib.c b/sound/core/pcm_lib.c
index bb1261591a1f..5088d4b8db22 100644
--- a/sound/core/pcm_lib.c
+++ b/sound/core/pcm_lib.c
@@ -21,6 +21,7 @@
*/
#include <linux/slab.h>
+#include <linux/sched/signal.h>
#include <linux/time.h>
#include <linux/math64.h>
#include <linux/export.h>
diff --git a/sound/core/pcm_native.c b/sound/core/pcm_native.c
index 9d33c1e85c79..8c8324d68d87 100644
--- a/sound/core/pcm_native.c
+++ b/sound/core/pcm_native.c
@@ -23,6 +23,7 @@
#include <linux/module.h>
#include <linux/file.h>
#include <linux/slab.h>
+#include <linux/sched/signal.h>
#include <linux/time.h>
#include <linux/pm_qos.h>
#include <linux/io.h>
diff --git a/sound/core/rawmidi.c b/sound/core/rawmidi.c
index 2096bb0835c8..f7e66137d642 100644
--- a/sound/core/rawmidi.c
+++ b/sound/core/rawmidi.c
@@ -22,7 +22,7 @@
#include <sound/core.h>
#include <linux/major.h>
#include <linux/init.h>
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
#include <linux/slab.h>
#include <linux/time.h>
#include <linux/wait.h>
diff --git a/sound/core/seq/oss/seq_oss_device.h b/sound/core/seq/oss/seq_oss_device.h
index d7b4d016b547..afa007c0cc2d 100644
--- a/sound/core/seq/oss/seq_oss_device.h
+++ b/sound/core/seq/oss/seq_oss_device.h
@@ -24,7 +24,7 @@
#include <linux/time.h>
#include <linux/wait.h>
#include <linux/slab.h>
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
#include <sound/core.h>
#include <sound/seq_oss.h>
#include <sound/rawmidi.h>
diff --git a/sound/core/seq/oss/seq_oss_writeq.c b/sound/core/seq/oss/seq_oss_writeq.c
index 1f6788a18444..5e04f4df10e4 100644
--- a/sound/core/seq/oss/seq_oss_writeq.c
+++ b/sound/core/seq/oss/seq_oss_writeq.c
@@ -28,6 +28,7 @@
#include "../seq_clientmgr.h"
#include <linux/wait.h>
#include <linux/slab.h>
+#include <linux/sched/signal.h>
/*
diff --git a/sound/core/seq/seq_fifo.c b/sound/core/seq/seq_fifo.c
index 1d5acbe0c08b..75e4c7d5b42d 100644
--- a/sound/core/seq/seq_fifo.c
+++ b/sound/core/seq/seq_fifo.c
@@ -21,6 +21,8 @@
#include <sound/core.h>
#include <linux/slab.h>
+#include <linux/sched/signal.h>
+
#include "seq_fifo.h"
#include "seq_lock.h"
diff --git a/sound/core/seq/seq_memory.c b/sound/core/seq/seq_memory.c
index c850345c43b5..546177172a0d 100644
--- a/sound/core/seq/seq_memory.c
+++ b/sound/core/seq/seq_memory.c
@@ -23,6 +23,7 @@
#include <linux/init.h>
#include <linux/export.h>
#include <linux/slab.h>
+#include <linux/sched/signal.h>
#include <linux/vmalloc.h>
#include <sound/core.h>
diff --git a/sound/core/timer.c b/sound/core/timer.c
index fc144f43faa6..3eb5ffb3b1a9 100644
--- a/sound/core/timer.c
+++ b/sound/core/timer.c
@@ -27,6 +27,7 @@
#include <linux/device.h>
#include <linux/module.h>
#include <linux/string.h>
+#include <linux/sched/signal.h>
#include <sound/core.h>
#include <sound/timer.h>
#include <sound/control.h>
diff --git a/sound/firewire/bebob/bebob.h b/sound/firewire/bebob/bebob.h
index 175da875162d..17678d6ab5a2 100644
--- a/sound/firewire/bebob/bebob.h
+++ b/sound/firewire/bebob/bebob.h
@@ -17,6 +17,7 @@
#include <linux/mod_devicetable.h>
#include <linux/delay.h>
#include <linux/slab.h>
+#include <linux/sched/signal.h>
#include <sound/core.h>
#include <sound/initval.h>
diff --git a/sound/firewire/dice/dice.h b/sound/firewire/dice/dice.h
index e6c07857f475..da00e75e09d4 100644
--- a/sound/firewire/dice/dice.h
+++ b/sound/firewire/dice/dice.h
@@ -23,6 +23,7 @@
#include <linux/slab.h>
#include <linux/spinlock.h>
#include <linux/wait.h>
+#include <linux/sched/signal.h>
#include <sound/control.h>
#include <sound/core.h>
diff --git a/sound/firewire/digi00x/digi00x.h b/sound/firewire/digi00x/digi00x.h
index 2cd465c0caae..9dc761bdacca 100644
--- a/sound/firewire/digi00x/digi00x.h
+++ b/sound/firewire/digi00x/digi00x.h
@@ -16,6 +16,7 @@
#include <linux/mod_devicetable.h>
#include <linux/delay.h>
#include <linux/slab.h>
+#include <linux/sched/signal.h>
#include <sound/core.h>
#include <sound/initval.h>
diff --git a/sound/firewire/fireworks/fireworks.h b/sound/firewire/fireworks/fireworks.h
index d73c12b8753d..9b19c7f05d57 100644
--- a/sound/firewire/fireworks/fireworks.h
+++ b/sound/firewire/fireworks/fireworks.h
@@ -17,6 +17,7 @@
#include <linux/mod_devicetable.h>
#include <linux/delay.h>
#include <linux/slab.h>
+#include <linux/sched/signal.h>
#include <sound/core.h>
#include <sound/initval.h>
diff --git a/sound/firewire/oxfw/oxfw.h b/sound/firewire/oxfw/oxfw.h
index 2047dcb27625..d54d4a9ac4a1 100644
--- a/sound/firewire/oxfw/oxfw.h
+++ b/sound/firewire/oxfw/oxfw.h
@@ -13,6 +13,7 @@
#include <linux/mutex.h>
#include <linux/slab.h>
#include <linux/compat.h>
+#include <linux/sched/signal.h>
#include <sound/control.h>
#include <sound/core.h>
diff --git a/sound/firewire/tascam/tascam.h b/sound/firewire/tascam/tascam.h
index 1f61011579a7..d3cd4065722b 100644
--- a/sound/firewire/tascam/tascam.h
+++ b/sound/firewire/tascam/tascam.h
@@ -17,6 +17,7 @@
#include <linux/mutex.h>
#include <linux/slab.h>
#include <linux/compat.h>
+#include <linux/sched/signal.h>
#include <sound/core.h>
#include <sound/initval.h>
diff --git a/sound/isa/gus/gus_pcm.c b/sound/isa/gus/gus_pcm.c
index 25f6788ccef3..06505999155f 100644
--- a/sound/isa/gus/gus_pcm.c
+++ b/sound/isa/gus/gus_pcm.c
@@ -27,6 +27,8 @@
#include <asm/dma.h>
#include <linux/slab.h>
+#include <linux/sched/signal.h>
+
#include <sound/core.h>
#include <sound/control.h>
#include <sound/gus.h>
diff --git a/sound/isa/msnd/msnd.c b/sound/isa/msnd/msnd.c
index 835d4aa26761..8109ab3d29d1 100644
--- a/sound/isa/msnd/msnd.c
+++ b/sound/isa/msnd/msnd.c
@@ -36,6 +36,7 @@
********************************************************************/
#include <linux/kernel.h>
+#include <linux/sched/signal.h>
#include <linux/types.h>
#include <linux/interrupt.h>
#include <linux/io.h>
diff --git a/sound/isa/sb/emu8000.c b/sound/isa/sb/emu8000.c
index 94c411299e5a..ec180708f160 100644
--- a/sound/isa/sb/emu8000.c
+++ b/sound/isa/sb/emu8000.c
@@ -21,7 +21,7 @@
*/
#include <linux/wait.h>
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
#include <linux/slab.h>
#include <linux/ioport.h>
#include <linux/export.h>
diff --git a/sound/isa/sb/emu8000_patch.c b/sound/isa/sb/emu8000_patch.c
index 71d13c0bb746..c2e41d2762f7 100644
--- a/sound/isa/sb/emu8000_patch.c
+++ b/sound/isa/sb/emu8000_patch.c
@@ -20,6 +20,8 @@
*/
#include "emu8000_local.h"
+
+#include <linux/sched/signal.h>
#include <linux/uaccess.h>
#include <linux/moduleparam.h>
diff --git a/sound/isa/sb/emu8000_pcm.c b/sound/isa/sb/emu8000_pcm.c
index 250fd0006b53..32f234f494e5 100644
--- a/sound/isa/sb/emu8000_pcm.c
+++ b/sound/isa/sb/emu8000_pcm.c
@@ -19,6 +19,8 @@
*/
#include "emu8000_local.h"
+
+#include <linux/sched/signal.h>
#include <linux/init.h>
#include <linux/slab.h>
#include <sound/initval.h>
diff --git a/sound/isa/wavefront/wavefront_synth.c b/sound/isa/wavefront/wavefront_synth.c
index 718d5e3b7806..4dae9ff9ef5a 100644
--- a/sound/isa/wavefront/wavefront_synth.c
+++ b/sound/isa/wavefront/wavefront_synth.c
@@ -26,6 +26,7 @@
#include <linux/delay.h>
#include <linux/time.h>
#include <linux/wait.h>
+#include <linux/sched/signal.h>
#include <linux/firmware.h>
#include <linux/moduleparam.h>
#include <linux/slab.h>
diff --git a/sound/oss/dmabuf.c b/sound/oss/dmabuf.c
index e3f29132d3ac..c5dd396c66a2 100644
--- a/sound/oss/dmabuf.c
+++ b/sound/oss/dmabuf.c
@@ -27,6 +27,8 @@
#include <linux/mm.h>
#include <linux/gfp.h>
+#include <linux/sched/signal.h>
+
#include "sound_config.h"
#include "sleep.h"
diff --git a/sound/oss/dmasound/dmasound_core.c b/sound/oss/dmasound/dmasound_core.c
index 5f248fb41bea..fb3bbceb1fef 100644
--- a/sound/oss/dmasound/dmasound_core.c
+++ b/sound/oss/dmasound/dmasound_core.c
@@ -182,6 +182,7 @@
#include <linux/soundcard.h>
#include <linux/poll.h>
#include <linux/mutex.h>
+#include <linux/sched/signal.h>
#include <linux/uaccess.h>
diff --git a/sound/oss/midibuf.c b/sound/oss/midibuf.c
index 8f45cd999965..701c7625c971 100644
--- a/sound/oss/midibuf.c
+++ b/sound/oss/midibuf.c
@@ -16,6 +16,8 @@
#include <linux/stddef.h>
#include <linux/kmod.h>
#include <linux/spinlock.h>
+#include <linux/sched/signal.h>
+
#define MIDIBUF_C
#include "sound_config.h"
diff --git a/sound/oss/msnd_pinnacle.c b/sound/oss/msnd_pinnacle.c
index a8bb4a06ba6f..f34ec01d2239 100644
--- a/sound/oss/msnd_pinnacle.c
+++ b/sound/oss/msnd_pinnacle.c
@@ -41,6 +41,8 @@
#include <linux/interrupt.h>
#include <linux/mutex.h>
#include <linux/gfp.h>
+#include <linux/sched/signal.h>
+
#include <asm/irq.h>
#include <asm/io.h>
#include "sound_config.h"
diff --git a/sound/oss/sound_config.h b/sound/oss/sound_config.h
index f2554ab78f5e..5253b0a70437 100644
--- a/sound/oss/sound_config.h
+++ b/sound/oss/sound_config.h
@@ -16,6 +16,7 @@
#include <linux/fs.h>
#include <linux/sound.h>
+#include <linux/sched/signal.h>
#include "os.h"
#include "soundvers.h"
diff --git a/sound/oss/swarm_cs4297a.c b/sound/oss/swarm_cs4297a.c
index f3af63e58b36..97899352b15f 100644
--- a/sound/oss/swarm_cs4297a.c
+++ b/sound/oss/swarm_cs4297a.c
@@ -64,7 +64,7 @@
#include <linux/module.h>
#include <linux/string.h>
#include <linux/ioport.h>
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
#include <linux/delay.h>
#include <linux/sound.h>
#include <linux/slab.h>
diff --git a/virt/kvm/kvm_main.c b/virt/kvm/kvm_main.c
index 7fdaff90ec05..41e5847a7588 100644
--- a/virt/kvm/kvm_main.c
+++ b/virt/kvm/kvm_main.c
@@ -32,7 +32,7 @@
#include <linux/file.h>
#include <linux/syscore_ops.h>
#include <linux/cpu.h>
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
#include <linux/sched/mm.h>
#include <linux/cpumask.h>
#include <linux/smp.h>
--
2.7.4
^ permalink raw reply related [flat|nested] 119+ messages in thread
* [PATCH 42/89] sched/headers: Move the memalloc_noio_*() APIs to <linux/sched/mm.h>
2017-02-06 13:28 [PATCH 00/89] Major reorganization of <linux/sched.h> Ingo Molnar
` (40 preceding siblings ...)
2017-02-06 13:28 ` [PATCH 41/89] sched/headers: Move signal wakeup & sigpending methods from <linux/sched.h> into <linux/sched/signal.h> Ingo Molnar
@ 2017-02-06 13:28 ` Ingo Molnar
2017-02-06 13:28 ` [PATCH 43/89] sched/headers: Remove <linux/gfp.h> include from <linux/sched.h> Ingo Molnar
` (48 subsequent siblings)
90 siblings, 0 replies; 119+ messages in thread
From: Ingo Molnar @ 2017-02-06 13:28 UTC (permalink / raw)
To: linux-kernel
Cc: Andrew Morton, Linus Torvalds, Mike Galbraith, Oleg Nesterov,
Peter Zijlstra, Thomas Gleixner
In preparation to remove the <linux/gfp.h> include from <linux/sched.h>.
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
drivers/base/power/runtime.c | 2 +-
drivers/md/dm-bufio.c | 1 +
drivers/md/dm-ioctl.c | 1 +
drivers/usb/core/hub.c | 2 +-
fs/ocfs2/cluster/tcp.c | 1 +
fs/xfs/kmem.c | 1 +
fs/xfs/xfs_buf.c | 1 +
include/linux/sched.h | 22 ----------------------
include/linux/sched/mm.h | 22 ++++++++++++++++++++++
mm/page_alloc.c | 1 +
mm/vmscan.c | 1 +
net/ceph/crypto.c | 1 +
12 files changed, 32 insertions(+), 24 deletions(-)
diff --git a/drivers/base/power/runtime.c b/drivers/base/power/runtime.c
index 872eac4cb1df..cf93f5136b4e 100644
--- a/drivers/base/power/runtime.c
+++ b/drivers/base/power/runtime.c
@@ -7,7 +7,7 @@
* This file is released under the GPLv2.
*/
-#include <linux/sched.h>
+#include <linux/sched/mm.h>
#include <linux/export.h>
#include <linux/pm_runtime.h>
#include <linux/pm_wakeirq.h>
diff --git a/drivers/md/dm-bufio.c b/drivers/md/dm-bufio.c
index d36d427a9efb..df4859f6ac6a 100644
--- a/drivers/md/dm-bufio.c
+++ b/drivers/md/dm-bufio.c
@@ -11,6 +11,7 @@
#include <linux/device-mapper.h>
#include <linux/dm-io.h>
#include <linux/slab.h>
+#include <linux/sched/mm.h>
#include <linux/jiffies.h>
#include <linux/vmalloc.h>
#include <linux/shrinker.h>
diff --git a/drivers/md/dm-ioctl.c b/drivers/md/dm-ioctl.c
index a5a9b17f0f7f..4da6fc6b1ffd 100644
--- a/drivers/md/dm-ioctl.c
+++ b/drivers/md/dm-ioctl.c
@@ -10,6 +10,7 @@
#include <linux/module.h>
#include <linux/vmalloc.h>
#include <linux/miscdevice.h>
+#include <linux/sched/mm.h>
#include <linux/init.h>
#include <linux/wait.h>
#include <linux/slab.h>
diff --git a/drivers/usb/core/hub.c b/drivers/usb/core/hub.c
index a56c75e09786..f0dd08198d74 100644
--- a/drivers/usb/core/hub.c
+++ b/drivers/usb/core/hub.c
@@ -15,7 +15,7 @@
#include <linux/module.h>
#include <linux/moduleparam.h>
#include <linux/completion.h>
-#include <linux/sched.h>
+#include <linux/sched/mm.h>
#include <linux/list.h>
#include <linux/slab.h>
#include <linux/ioctl.h>
diff --git a/fs/ocfs2/cluster/tcp.c b/fs/ocfs2/cluster/tcp.c
index ec000575e863..4348027384f5 100644
--- a/fs/ocfs2/cluster/tcp.c
+++ b/fs/ocfs2/cluster/tcp.c
@@ -54,6 +54,7 @@
*/
#include <linux/kernel.h>
+#include <linux/sched/mm.h>
#include <linux/jiffies.h>
#include <linux/slab.h>
#include <linux/idr.h>
diff --git a/fs/xfs/kmem.c b/fs/xfs/kmem.c
index 339c696bbc01..2dfdc62f795e 100644
--- a/fs/xfs/kmem.c
+++ b/fs/xfs/kmem.c
@@ -16,6 +16,7 @@
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include <linux/mm.h>
+#include <linux/sched/mm.h>
#include <linux/highmem.h>
#include <linux/slab.h>
#include <linux/swap.h>
diff --git a/fs/xfs/xfs_buf.c b/fs/xfs/xfs_buf.c
index ac3b4db519df..b0cf7904eb63 100644
--- a/fs/xfs/xfs_buf.c
+++ b/fs/xfs/xfs_buf.c
@@ -33,6 +33,7 @@
#include <linux/migrate.h>
#include <linux/backing-dev.h>
#include <linux/freezer.h>
+#include <linux/sched/mm.h>
#include "xfs_format.h"
#include "xfs_log_format.h"
diff --git a/include/linux/sched.h b/include/linux/sched.h
index c2bfc13cf9cd..210f0f4a5841 100644
--- a/include/linux/sched.h
+++ b/include/linux/sched.h
@@ -1468,28 +1468,6 @@ extern void thread_group_cputime_adjusted(struct task_struct *p, u64 *ut, u64 *s
#define tsk_used_math(p) ((p)->flags & PF_USED_MATH)
#define used_math() tsk_used_math(current)
-/* __GFP_IO isn't allowed if PF_MEMALLOC_NOIO is set in current->flags
- * __GFP_FS is also cleared as it implies __GFP_IO.
- */
-static inline gfp_t memalloc_noio_flags(gfp_t flags)
-{
- if (unlikely(current->flags & PF_MEMALLOC_NOIO))
- flags &= ~(__GFP_IO | __GFP_FS);
- return flags;
-}
-
-static inline unsigned int memalloc_noio_save(void)
-{
- unsigned int flags = current->flags & PF_MEMALLOC_NOIO;
- current->flags |= PF_MEMALLOC_NOIO;
- return flags;
-}
-
-static inline void memalloc_noio_restore(unsigned int flags)
-{
- current->flags = (current->flags & ~PF_MEMALLOC_NOIO) | flags;
-}
-
/* Per-process atomic flags. */
#define PFA_NO_NEW_PRIVS 0 /* May not gain new privileges. */
#define PFA_SPREAD_PAGE 1 /* Spread page cache over cpuset */
diff --git a/include/linux/sched/mm.h b/include/linux/sched/mm.h
index 6eb9677b88bf..6dc0d34d773b 100644
--- a/include/linux/sched/mm.h
+++ b/include/linux/sched/mm.h
@@ -104,4 +104,26 @@ static inline bool in_vfork(struct task_struct *tsk)
return ret;
}
+/* __GFP_IO isn't allowed if PF_MEMALLOC_NOIO is set in current->flags
+ * __GFP_FS is also cleared as it implies __GFP_IO.
+ */
+static inline gfp_t memalloc_noio_flags(gfp_t flags)
+{
+ if (unlikely(current->flags & PF_MEMALLOC_NOIO))
+ flags &= ~(__GFP_IO | __GFP_FS);
+ return flags;
+}
+
+static inline unsigned int memalloc_noio_save(void)
+{
+ unsigned int flags = current->flags & PF_MEMALLOC_NOIO;
+ current->flags |= PF_MEMALLOC_NOIO;
+ return flags;
+}
+
+static inline void memalloc_noio_restore(unsigned int flags)
+{
+ current->flags = (current->flags & ~PF_MEMALLOC_NOIO) | flags;
+}
+
#endif /* _LINUX_SCHED_MM_H */
diff --git a/mm/page_alloc.c b/mm/page_alloc.c
index f3e0c69a97b7..76be71033925 100644
--- a/mm/page_alloc.c
+++ b/mm/page_alloc.c
@@ -61,6 +61,7 @@
#include <linux/page_ext.h>
#include <linux/hugetlb.h>
#include <linux/sched/rt.h>
+#include <linux/sched/mm.h>
#include <linux/page_owner.h>
#include <linux/kthread.h>
#include <linux/memcontrol.h>
diff --git a/mm/vmscan.c b/mm/vmscan.c
index 532a2a750952..0a825402d2a2 100644
--- a/mm/vmscan.c
+++ b/mm/vmscan.c
@@ -14,6 +14,7 @@
#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
#include <linux/mm.h>
+#include <linux/sched/mm.h>
#include <linux/module.h>
#include <linux/gfp.h>
#include <linux/kernel_stat.h>
diff --git a/net/ceph/crypto.c b/net/ceph/crypto.c
index 292e33bd916e..4f61371fa746 100644
--- a/net/ceph/crypto.c
+++ b/net/ceph/crypto.c
@@ -7,6 +7,7 @@
#include <crypto/aes.h>
#include <crypto/skcipher.h>
#include <linux/key-type.h>
+#include <linux/sched/mm.h>
#include <keys/ceph-type.h>
#include <keys/user-type.h>
--
2.7.4
^ permalink raw reply related [flat|nested] 119+ messages in thread
* [PATCH 43/89] sched/headers: Remove <linux/gfp.h> include from <linux/sched.h>
2017-02-06 13:28 [PATCH 00/89] Major reorganization of <linux/sched.h> Ingo Molnar
` (41 preceding siblings ...)
2017-02-06 13:28 ` [PATCH 42/89] sched/headers: Move the memalloc_noio_*() APIs to <linux/sched/mm.h> Ingo Molnar
@ 2017-02-06 13:28 ` Ingo Molnar
2017-02-06 13:28 ` [PATCH 44/89] sched/headers: Move task statistics from <linux/sched.h> to <linux/sched/stat.h> Ingo Molnar
` (47 subsequent siblings)
90 siblings, 0 replies; 119+ messages in thread
From: Ingo Molnar @ 2017-02-06 13:28 UTC (permalink / raw)
To: linux-kernel
Cc: Andrew Morton, Linus Torvalds, Mike Galbraith, Oleg Nesterov,
Peter Zijlstra, Thomas Gleixner
<linux/topology.h> is still needed - but we at least don't have MM
headers in sched.h anymore, except <linux/mm_types.h>.
Fix dependencies in files that depended on this include.
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
include/linux/sched.h | 2 +-
include/linux/sched/mm.h | 1 +
lib/percpu_ida.c | 1 +
3 files changed, 3 insertions(+), 1 deletion(-)
diff --git a/include/linux/sched.h b/include/linux/sched.h
index 210f0f4a5841..7324624a49d6 100644
--- a/include/linux/sched.h
+++ b/include/linux/sched.h
@@ -20,7 +20,7 @@
#include <linux/kcov.h>
#include <linux/task_io_accounting.h>
#include <linux/latencytop.h>
-#include <linux/gfp.h>
+#include <linux/topology.h>
#include <linux/magic.h>
struct sched_attr;
diff --git a/include/linux/sched/mm.h b/include/linux/sched/mm.h
index 6dc0d34d773b..acbd122bb1ab 100644
--- a/include/linux/sched/mm.h
+++ b/include/linux/sched/mm.h
@@ -4,6 +4,7 @@
#include <linux/kernel.h>
#include <linux/atomic.h>
#include <linux/sched.h>
+#include <linux/gfp.h>
/*
* Routines for handling mm_structs
diff --git a/lib/percpu_ida.c b/lib/percpu_ida.c
index 010410990bc6..6016f1deb1f5 100644
--- a/lib/percpu_ida.c
+++ b/lib/percpu_ida.c
@@ -14,6 +14,7 @@
* General Public License for more details.
*/
+#include <linux/mm.h>
#include <linux/bitmap.h>
#include <linux/bitops.h>
#include <linux/bug.h>
--
2.7.4
^ permalink raw reply related [flat|nested] 119+ messages in thread
* [PATCH 44/89] sched/headers: Move task statistics from <linux/sched.h> to <linux/sched/stat.h>
2017-02-06 13:28 [PATCH 00/89] Major reorganization of <linux/sched.h> Ingo Molnar
` (42 preceding siblings ...)
2017-02-06 13:28 ` [PATCH 43/89] sched/headers: Remove <linux/gfp.h> include from <linux/sched.h> Ingo Molnar
@ 2017-02-06 13:28 ` Ingo Molnar
2017-02-06 13:28 ` [PATCH 45/89] mm/vmacache, sched/headers: Introduce 'struct vmacache' and move it from <linux/sched.h> to <linux/mm_types> Ingo Molnar
` (46 subsequent siblings)
90 siblings, 0 replies; 119+ messages in thread
From: Ingo Molnar @ 2017-02-06 13:28 UTC (permalink / raw)
To: linux-kernel
Cc: Andrew Morton, Linus Torvalds, Mike Galbraith, Oleg Nesterov,
Peter Zijlstra, Thomas Gleixner
There are a number of task statistics related variables and methods exported
via sched.h - collect them into <linux/sched/stat.h> and include it from
their usage sites.
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
arch/powerpc/kvm/book3s_hv.c | 1 +
arch/s390/appldata/appldata_os.c | 1 +
crypto/mcryptd.c | 1 +
| 1 +
fs/proc/loadavg.c | 1 +
fs/proc/root.c | 1 +
fs/proc/stat.c | 1 +
include/linux/sched.h | 10 ----------
include/linux/sched/stat.h | 22 ++++++++++++++++++++++
kernel/debug/kdb/kdb_main.c | 1 +
kernel/exit.c | 1 +
kernel/fork.c | 1 +
kernel/sched/sched.h | 1 +
kernel/sys.c | 1 +
kernel/time/tick-sched.c | 1 +
virt/kvm/kvm_main.c | 1 +
16 files changed, 36 insertions(+), 10 deletions(-)
diff --git a/arch/powerpc/kvm/book3s_hv.c b/arch/powerpc/kvm/book3s_hv.c
index 81f0d14b545c..7d2579175e6f 100644
--- a/arch/powerpc/kvm/book3s_hv.c
+++ b/arch/powerpc/kvm/book3s_hv.c
@@ -23,6 +23,7 @@
#include <linux/slab.h>
#include <linux/preempt.h>
#include <linux/sched/signal.h>
+#include <linux/sched/stat.h>
#include <linux/delay.h>
#include <linux/export.h>
#include <linux/fs.h>
diff --git a/arch/s390/appldata/appldata_os.c b/arch/s390/appldata/appldata_os.c
index 079446619f89..45b3178200ab 100644
--- a/arch/s390/appldata/appldata_os.c
+++ b/arch/s390/appldata/appldata_os.c
@@ -18,6 +18,7 @@
#include <linux/netdevice.h>
#include <linux/sched.h>
#include <linux/sched/loadavg.h>
+#include <linux/sched/stat.h>
#include <asm/appldata.h>
#include <asm/smp.h>
diff --git a/crypto/mcryptd.c b/crypto/mcryptd.c
index c207458d6299..4e6472658852 100644
--- a/crypto/mcryptd.c
+++ b/crypto/mcryptd.c
@@ -24,6 +24,7 @@
#include <linux/module.h>
#include <linux/scatterlist.h>
#include <linux/sched.h>
+#include <linux/sched/stat.h>
#include <linux/slab.h>
#include <linux/hardirq.h>
--git a/drivers/cpuidle/governors/menu.c b/drivers/cpuidle/governors/menu.c
index 63d3bde4fac6..e19c0426ede1 100644
--- a/drivers/cpuidle/governors/menu.c
+++ b/drivers/cpuidle/governors/menu.c
@@ -19,6 +19,7 @@
#include <linux/tick.h>
#include <linux/sched.h>
#include <linux/sched/loadavg.h>
+#include <linux/sched/stat.h>
#include <linux/math64.h>
/*
diff --git a/fs/proc/loadavg.c b/fs/proc/loadavg.c
index add5255ce7e0..983fce5c2418 100644
--- a/fs/proc/loadavg.c
+++ b/fs/proc/loadavg.c
@@ -4,6 +4,7 @@
#include <linux/proc_fs.h>
#include <linux/sched.h>
#include <linux/sched/loadavg.h>
+#include <linux/sched/stat.h>
#include <linux/seq_file.h>
#include <linux/seqlock.h>
#include <linux/time.h>
diff --git a/fs/proc/root.c b/fs/proc/root.c
index 1e0b97a646ff..c07337f85ec0 100644
--- a/fs/proc/root.c
+++ b/fs/proc/root.c
@@ -14,6 +14,7 @@
#include <linux/stat.h>
#include <linux/init.h>
#include <linux/sched.h>
+#include <linux/sched/stat.h>
#include <linux/module.h>
#include <linux/bitops.h>
#include <linux/user_namespace.h>
diff --git a/fs/proc/stat.c b/fs/proc/stat.c
index e47c3e8c4dfe..b95556e036bb 100644
--- a/fs/proc/stat.c
+++ b/fs/proc/stat.c
@@ -5,6 +5,7 @@
#include <linux/kernel_stat.h>
#include <linux/proc_fs.h>
#include <linux/sched.h>
+#include <linux/sched/stat.h>
#include <linux/seq_file.h>
#include <linux/slab.h>
#include <linux/time.h>
diff --git a/include/linux/sched.h b/include/linux/sched.h
index 7324624a49d6..45f3e7345b98 100644
--- a/include/linux/sched.h
+++ b/include/linux/sched.h
@@ -42,16 +42,6 @@ struct sighand_struct;
#define VMACACHE_SIZE (1U << VMACACHE_BITS)
#define VMACACHE_MASK (VMACACHE_SIZE - 1)
-extern unsigned long total_forks;
-extern int nr_threads;
-DECLARE_PER_CPU(unsigned long, process_counts);
-extern int nr_processes(void);
-extern unsigned long nr_running(void);
-extern bool single_task_running(void);
-extern unsigned long nr_iowait(void);
-extern unsigned long nr_iowait_cpu(int cpu);
-extern void get_iowait_load(unsigned long *nr_waiters, unsigned long *load);
-
#if defined(CONFIG_SMP) && defined(CONFIG_NO_HZ_COMMON)
extern void cpu_load_update_nohz_start(void);
extern void cpu_load_update_nohz_stop(void);
diff --git a/include/linux/sched/stat.h b/include/linux/sched/stat.h
new file mode 100644
index 000000000000..1a1df11d1d70
--- /dev/null
+++ b/include/linux/sched/stat.h
@@ -0,0 +1,22 @@
+#ifndef _LINUX_SCHED_STAT_H
+#define _LINUX_SCHED_STAT_H
+
+/*
+ * Various counters maintained by the scheduler and fork(),
+ * exposed via /proc, sys.c or used by drivers via these APIs.
+ *
+ * ( Note that all these values are aquired without locking,
+ * so they can only be relied on in narrow circumstances. )
+ */
+
+extern unsigned long total_forks;
+extern int nr_threads;
+DECLARE_PER_CPU(unsigned long, process_counts);
+extern int nr_processes(void);
+extern unsigned long nr_running(void);
+extern bool single_task_running(void);
+extern unsigned long nr_iowait(void);
+extern unsigned long nr_iowait_cpu(int cpu);
+extern void get_iowait_load(unsigned long *nr_waiters, unsigned long *load);
+
+#endif /* _LINUX_SCHED_STAT_H */
diff --git a/kernel/debug/kdb/kdb_main.c b/kernel/debug/kdb/kdb_main.c
index 308937c7a687..bf48a492b4be 100644
--- a/kernel/debug/kdb/kdb_main.c
+++ b/kernel/debug/kdb/kdb_main.c
@@ -19,6 +19,7 @@
#include <linux/reboot.h>
#include <linux/sched.h>
#include <linux/sched/loadavg.h>
+#include <linux/sched/stat.h>
#include <linux/sysrq.h>
#include <linux/smp.h>
#include <linux/utsname.h>
diff --git a/kernel/exit.c b/kernel/exit.c
index 3a8a5339713d..b80fda6a62b9 100644
--- a/kernel/exit.c
+++ b/kernel/exit.c
@@ -8,6 +8,7 @@
#include <linux/slab.h>
#include <linux/sched/autogroup.h>
#include <linux/sched/mm.h>
+#include <linux/sched/stat.h>
#include <linux/interrupt.h>
#include <linux/module.h>
#include <linux/capability.h>
diff --git a/kernel/fork.c b/kernel/fork.c
index 7752942b9701..4dd6eae255c1 100644
--- a/kernel/fork.c
+++ b/kernel/fork.c
@@ -17,6 +17,7 @@
#include <linux/sched/coredump.h>
#include <linux/sched/user.h>
#include <linux/sched/numa_balancing.h>
+#include <linux/sched/stat.h>
#include <linux/rtmutex.h>
#include <linux/init.h>
#include <linux/unistd.h>
diff --git a/kernel/sched/sched.h b/kernel/sched/sched.h
index 04f376cf7ba9..6c8a1db44dde 100644
--- a/kernel/sched/sched.h
+++ b/kernel/sched/sched.h
@@ -9,6 +9,7 @@
#include <linux/sched/numa_balancing.h>
#include <linux/sched/mm.h>
#include <linux/sched/cpufreq.h>
+#include <linux/sched/stat.h>
#include <linux/u64_stats_sync.h>
#include <linux/sched/deadline.h>
#include <linux/kernel_stat.h>
diff --git a/kernel/sys.c b/kernel/sys.c
index b245d9d69936..259d634fc88c 100644
--- a/kernel/sys.c
+++ b/kernel/sys.c
@@ -51,6 +51,7 @@
#include <linux/sched.h>
#include <linux/sched/autogroup.h>
#include <linux/sched/loadavg.h>
+#include <linux/sched/stat.h>
#include <linux/sched/mm.h>
#include <linux/sched/coredump.h>
#include <linux/rcupdate.h>
diff --git a/kernel/time/tick-sched.c b/kernel/time/tick-sched.c
index 449257037ff1..52abe90b590d 100644
--- a/kernel/time/tick-sched.c
+++ b/kernel/time/tick-sched.c
@@ -21,6 +21,7 @@
#include <linux/profile.h>
#include <linux/sched/signal.h>
#include <linux/sched/clock.h>
+#include <linux/sched/stat.h>
#include <linux/module.h>
#include <linux/irq_work.h>
#include <linux/posix-timers.h>
diff --git a/virt/kvm/kvm_main.c b/virt/kvm/kvm_main.c
index 41e5847a7588..0e169b17f65d 100644
--- a/virt/kvm/kvm_main.c
+++ b/virt/kvm/kvm_main.c
@@ -34,6 +34,7 @@
#include <linux/cpu.h>
#include <linux/sched/signal.h>
#include <linux/sched/mm.h>
+#include <linux/sched/stat.h>
#include <linux/cpumask.h>
#include <linux/smp.h>
#include <linux/anon_inodes.h>
--
2.7.4
^ permalink raw reply related [flat|nested] 119+ messages in thread
* [PATCH 45/89] mm/vmacache, sched/headers: Introduce 'struct vmacache' and move it from <linux/sched.h> to <linux/mm_types>
2017-02-06 13:28 [PATCH 00/89] Major reorganization of <linux/sched.h> Ingo Molnar
` (43 preceding siblings ...)
2017-02-06 13:28 ` [PATCH 44/89] sched/headers: Move task statistics from <linux/sched.h> to <linux/sched/stat.h> Ingo Molnar
@ 2017-02-06 13:28 ` Ingo Molnar
2017-02-06 13:28 ` [PATCH 46/89] sched/headers: Move the NOHZ APIs from <linux/sched.h> to <linux/sched/nohz.h> Ingo Molnar
` (45 subsequent siblings)
90 siblings, 0 replies; 119+ messages in thread
From: Ingo Molnar @ 2017-02-06 13:28 UTC (permalink / raw)
To: linux-kernel
Cc: Andrew Morton, Linus Torvalds, Mike Galbraith, Oleg Nesterov,
Peter Zijlstra, Thomas Gleixner
The <linux/sched.h> header includes various vmacache related defines,
which are arguably misplaced.
Move them to mm_types.h and minimize the sched.h impact by putting
all task vmacache state into a new 'struct vmacache' structure.
No change in functionality.
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
include/linux/mm_types.h | 12 ++++++++++++
include/linux/sched.h | 11 ++++-------
include/linux/vmacache.h | 2 +-
kernel/debug/debug_core.c | 4 ++--
mm/nommu.c | 2 +-
mm/vmacache.c | 10 +++++-----
6 files changed, 25 insertions(+), 16 deletions(-)
diff --git a/include/linux/mm_types.h b/include/linux/mm_types.h
index c2bb860d2d2e..a2696980a7bf 100644
--- a/include/linux/mm_types.h
+++ b/include/linux/mm_types.h
@@ -360,6 +360,18 @@ struct vm_area_struct {
struct vm_userfaultfd_ctx vm_userfaultfd_ctx;
};
+/*
+ * The per task VMA cache array:
+ */
+#define VMACACHE_BITS 2
+#define VMACACHE_SIZE (1U << VMACACHE_BITS)
+#define VMACACHE_MASK (VMACACHE_SIZE - 1)
+
+struct vmacache {
+ u32 seqnum;
+ struct vm_area_struct *vmas[VMACACHE_SIZE];
+};
+
struct core_thread {
struct task_struct *task;
struct core_thread *next;
diff --git a/include/linux/sched.h b/include/linux/sched.h
index 45f3e7345b98..2a05f8d6d9f1 100644
--- a/include/linux/sched.h
+++ b/include/linux/sched.h
@@ -38,10 +38,6 @@ struct nameidata;
struct signal_struct;
struct sighand_struct;
-#define VMACACHE_BITS 2
-#define VMACACHE_SIZE (1U << VMACACHE_BITS)
-#define VMACACHE_MASK (VMACACHE_SIZE - 1)
-
#if defined(CONFIG_SMP) && defined(CONFIG_NO_HZ_COMMON)
extern void cpu_load_update_nohz_start(void);
extern void cpu_load_update_nohz_stop(void);
@@ -746,9 +742,10 @@ struct task_struct {
#endif
struct mm_struct *mm, *active_mm;
- /* per-thread vma caching */
- u32 vmacache_seqnum;
- struct vm_area_struct *vmacache[VMACACHE_SIZE];
+
+ /* Per-thread vma caching: */
+ struct vmacache vmacache;
+
#if defined(SPLIT_RSS_COUNTING)
struct task_rss_stat rss_stat;
#endif
diff --git a/include/linux/vmacache.h b/include/linux/vmacache.h
index c3fa0fd43949..1081db987391 100644
--- a/include/linux/vmacache.h
+++ b/include/linux/vmacache.h
@@ -12,7 +12,7 @@
static inline void vmacache_flush(struct task_struct *tsk)
{
- memset(tsk->vmacache, 0, sizeof(tsk->vmacache));
+ memset(tsk->vmacache.vmas, 0, sizeof(tsk->vmacache.vmas));
}
extern void vmacache_flush_all(struct mm_struct *mm);
diff --git a/kernel/debug/debug_core.c b/kernel/debug/debug_core.c
index 356157373dd2..65c0f1363788 100644
--- a/kernel/debug/debug_core.c
+++ b/kernel/debug/debug_core.c
@@ -233,9 +233,9 @@ static void kgdb_flush_swbreak_addr(unsigned long addr)
int i;
for (i = 0; i < VMACACHE_SIZE; i++) {
- if (!current->vmacache[i])
+ if (!current->vmacache.vmas[i])
continue;
- flush_cache_range(current->vmacache[i],
+ flush_cache_range(current->vmacache.vmas[i],
addr, addr + BREAK_INSTR_SIZE);
}
}
diff --git a/mm/nommu.c b/mm/nommu.c
index 8c6bb7836641..3fc1210db12f 100644
--- a/mm/nommu.c
+++ b/mm/nommu.c
@@ -758,7 +758,7 @@ static void delete_vma_from_mm(struct vm_area_struct *vma)
mm->map_count--;
for (i = 0; i < VMACACHE_SIZE; i++) {
/* if the vma is cached, invalidate the entire cache */
- if (curr->vmacache[i] == vma) {
+ if (curr->vmacache.vmas[i] == vma) {
vmacache_invalidate(mm);
break;
}
diff --git a/mm/vmacache.c b/mm/vmacache.c
index 7799f7b00981..4355d34c68a6 100644
--- a/mm/vmacache.c
+++ b/mm/vmacache.c
@@ -60,7 +60,7 @@ static inline bool vmacache_valid_mm(struct mm_struct *mm)
void vmacache_update(unsigned long addr, struct vm_area_struct *newvma)
{
if (vmacache_valid_mm(newvma->vm_mm))
- current->vmacache[VMACACHE_HASH(addr)] = newvma;
+ current->vmacache.vmas[VMACACHE_HASH(addr)] = newvma;
}
static bool vmacache_valid(struct mm_struct *mm)
@@ -71,12 +71,12 @@ static bool vmacache_valid(struct mm_struct *mm)
return false;
curr = current;
- if (mm->vmacache_seqnum != curr->vmacache_seqnum) {
+ if (mm->vmacache_seqnum != curr->vmacache.seqnum) {
/*
* First attempt will always be invalid, initialize
* the new cache for this task here.
*/
- curr->vmacache_seqnum = mm->vmacache_seqnum;
+ curr->vmacache.seqnum = mm->vmacache_seqnum;
vmacache_flush(curr);
return false;
}
@@ -93,7 +93,7 @@ struct vm_area_struct *vmacache_find(struct mm_struct *mm, unsigned long addr)
return NULL;
for (i = 0; i < VMACACHE_SIZE; i++) {
- struct vm_area_struct *vma = current->vmacache[i];
+ struct vm_area_struct *vma = current->vmacache.vmas[i];
if (!vma)
continue;
@@ -121,7 +121,7 @@ struct vm_area_struct *vmacache_find_exact(struct mm_struct *mm,
return NULL;
for (i = 0; i < VMACACHE_SIZE; i++) {
- struct vm_area_struct *vma = current->vmacache[i];
+ struct vm_area_struct *vma = current->vmacache.vmas[i];
if (vma && vma->vm_start == start && vma->vm_end == end) {
count_vm_vmacache_event(VMACACHE_FIND_HITS);
--
2.7.4
^ permalink raw reply related [flat|nested] 119+ messages in thread
* [PATCH 46/89] sched/headers: Move the NOHZ APIs from <linux/sched.h> to <linux/sched/nohz.h>
2017-02-06 13:28 [PATCH 00/89] Major reorganization of <linux/sched.h> Ingo Molnar
` (44 preceding siblings ...)
2017-02-06 13:28 ` [PATCH 45/89] mm/vmacache, sched/headers: Introduce 'struct vmacache' and move it from <linux/sched.h> to <linux/mm_types> Ingo Molnar
@ 2017-02-06 13:28 ` Ingo Molnar
2017-02-06 13:28 ` [PATCH 47/89] sched/headers: Move debugging functions from <linux/sched.h> to <linux/sched/debug.h> Ingo Molnar
` (44 subsequent siblings)
90 siblings, 0 replies; 119+ messages in thread
From: Ingo Molnar @ 2017-02-06 13:28 UTC (permalink / raw)
To: linux-kernel
Cc: Andrew Morton, Linus Torvalds, Mike Galbraith, Oleg Nesterov,
Peter Zijlstra, Thomas Gleixner
There's a number of NOHZ/dyntics related functionality in <linux/sched.h>,
but only a handful of timer files are making use of them.
Move them into their own header. This better documents these APIs
and unclutters <linux/sched.h>.
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
include/linux/sched.h | 35 -----------------------------------
include/linux/sched/nohz.h | 43 +++++++++++++++++++++++++++++++++++++++++++
kernel/sched/sched.h | 1 +
kernel/time/hrtimer.c | 1 +
kernel/time/tick-sched.c | 1 +
kernel/time/timer.c | 1 +
6 files changed, 47 insertions(+), 35 deletions(-)
diff --git a/include/linux/sched.h b/include/linux/sched.h
index 2a05f8d6d9f1..947d4033b019 100644
--- a/include/linux/sched.h
+++ b/include/linux/sched.h
@@ -38,14 +38,6 @@ struct nameidata;
struct signal_struct;
struct sighand_struct;
-#if defined(CONFIG_SMP) && defined(CONFIG_NO_HZ_COMMON)
-extern void cpu_load_update_nohz_start(void);
-extern void cpu_load_update_nohz_stop(void);
-#else
-static inline void cpu_load_update_nohz_start(void) { }
-static inline void cpu_load_update_nohz_stop(void) { }
-#endif
-
extern void dump_cpu_task(int cpu);
struct seq_file;
@@ -199,15 +191,6 @@ extern cpumask_var_t cpu_isolated_map;
extern int runqueue_is_locked(int cpu);
-#if defined(CONFIG_SMP) && defined(CONFIG_NO_HZ_COMMON)
-extern void nohz_balance_enter_idle(int cpu);
-extern void set_cpu_sd_state_idle(void);
-extern int get_nohz_timer_target(void);
-#else
-static inline void nohz_balance_enter_idle(int cpu) { }
-static inline void set_cpu_sd_state_idle(void) { }
-#endif
-
/*
* Only dump TASK_* tasks. (0 for all tasks)
*/
@@ -1532,14 +1515,6 @@ static inline int set_cpus_allowed_ptr(struct task_struct *p,
}
#endif
-#ifdef CONFIG_NO_HZ_COMMON
-void calc_load_enter_idle(void);
-void calc_load_exit_idle(void);
-#else
-static inline void calc_load_enter_idle(void) { }
-static inline void calc_load_exit_idle(void) { }
-#endif /* CONFIG_NO_HZ_COMMON */
-
#ifndef cpu_relax_yield
#define cpu_relax_yield() cpu_relax()
#endif
@@ -1560,16 +1535,6 @@ extern void idle_task_exit(void);
static inline void idle_task_exit(void) {}
#endif
-#if defined(CONFIG_NO_HZ_COMMON) && defined(CONFIG_SMP)
-extern void wake_up_nohz_cpu(int cpu);
-#else
-static inline void wake_up_nohz_cpu(int cpu) { }
-#endif
-
-#ifdef CONFIG_NO_HZ_FULL
-extern u64 scheduler_tick_max_deferment(void);
-#endif
-
extern int yield_to(struct task_struct *p, bool preempt);
extern void set_user_nice(struct task_struct *p, long nice);
extern int task_prio(const struct task_struct *p);
diff --git a/include/linux/sched/nohz.h b/include/linux/sched/nohz.h
new file mode 100644
index 000000000000..4995b717500b
--- /dev/null
+++ b/include/linux/sched/nohz.h
@@ -0,0 +1,43 @@
+#ifndef _LINUX_SCHED_NOHZ_H
+#define _LINUX_SCHED_NOHZ_H
+
+/*
+ * This is the interface between the scheduler and nohz/dyntics:
+ */
+
+#if defined(CONFIG_SMP) && defined(CONFIG_NO_HZ_COMMON)
+extern void cpu_load_update_nohz_start(void);
+extern void cpu_load_update_nohz_stop(void);
+#else
+static inline void cpu_load_update_nohz_start(void) { }
+static inline void cpu_load_update_nohz_stop(void) { }
+#endif
+
+#if defined(CONFIG_SMP) && defined(CONFIG_NO_HZ_COMMON)
+extern void nohz_balance_enter_idle(int cpu);
+extern void set_cpu_sd_state_idle(void);
+extern int get_nohz_timer_target(void);
+#else
+static inline void nohz_balance_enter_idle(int cpu) { }
+static inline void set_cpu_sd_state_idle(void) { }
+#endif
+
+#ifdef CONFIG_NO_HZ_COMMON
+void calc_load_enter_idle(void);
+void calc_load_exit_idle(void);
+#else
+static inline void calc_load_enter_idle(void) { }
+static inline void calc_load_exit_idle(void) { }
+#endif /* CONFIG_NO_HZ_COMMON */
+
+#if defined(CONFIG_NO_HZ_COMMON) && defined(CONFIG_SMP)
+extern void wake_up_nohz_cpu(int cpu);
+#else
+static inline void wake_up_nohz_cpu(int cpu) { }
+#endif
+
+#ifdef CONFIG_NO_HZ_FULL
+extern u64 scheduler_tick_max_deferment(void);
+#endif
+
+#endif /* _LINUX_SCHED_NOHZ_H */
diff --git a/kernel/sched/sched.h b/kernel/sched/sched.h
index 6c8a1db44dde..5979f47c422c 100644
--- a/kernel/sched/sched.h
+++ b/kernel/sched/sched.h
@@ -10,6 +10,7 @@
#include <linux/sched/mm.h>
#include <linux/sched/cpufreq.h>
#include <linux/sched/stat.h>
+#include <linux/sched/nohz.h>
#include <linux/u64_stats_sync.h>
#include <linux/sched/deadline.h>
#include <linux/kernel_stat.h>
diff --git a/kernel/time/hrtimer.c b/kernel/time/hrtimer.c
index 6e36467b678f..301323221d2c 100644
--- a/kernel/time/hrtimer.c
+++ b/kernel/time/hrtimer.c
@@ -47,6 +47,7 @@
#include <linux/sched/sysctl.h>
#include <linux/sched/rt.h>
#include <linux/sched/deadline.h>
+#include <linux/sched/nohz.h>
#include <linux/timer.h>
#include <linux/freezer.h>
diff --git a/kernel/time/tick-sched.c b/kernel/time/tick-sched.c
index 52abe90b590d..8b084c5a2962 100644
--- a/kernel/time/tick-sched.c
+++ b/kernel/time/tick-sched.c
@@ -22,6 +22,7 @@
#include <linux/sched/signal.h>
#include <linux/sched/clock.h>
#include <linux/sched/stat.h>
+#include <linux/sched/nohz.h>
#include <linux/module.h>
#include <linux/irq_work.h>
#include <linux/posix-timers.h>
diff --git a/kernel/time/timer.c b/kernel/time/timer.c
index c78f2b3e076e..bf69e770e303 100644
--- a/kernel/time/timer.c
+++ b/kernel/time/timer.c
@@ -40,6 +40,7 @@
#include <linux/irq_work.h>
#include <linux/sched/signal.h>
#include <linux/sched/sysctl.h>
+#include <linux/sched/nohz.h>
#include <linux/slab.h>
#include <linux/compat.h>
--
2.7.4
^ permalink raw reply related [flat|nested] 119+ messages in thread
* [PATCH 47/89] sched/headers: Move debugging functions from <linux/sched.h> to <linux/sched/debug.h>
2017-02-06 13:28 [PATCH 00/89] Major reorganization of <linux/sched.h> Ingo Molnar
` (45 preceding siblings ...)
2017-02-06 13:28 ` [PATCH 46/89] sched/headers: Move the NOHZ APIs from <linux/sched.h> to <linux/sched/nohz.h> Ingo Molnar
@ 2017-02-06 13:28 ` Ingo Molnar
2017-02-06 13:28 ` [PATCH 48/89] sched/headers, time/timekeeping: Move the xtime_update() prototype from <linux/sched.h> to <linux/time.h> Ingo Molnar
` (43 subsequent siblings)
90 siblings, 0 replies; 119+ messages in thread
From: Ingo Molnar @ 2017-02-06 13:28 UTC (permalink / raw)
To: linux-kernel
Cc: Andrew Morton, Linus Torvalds, Mike Galbraith, Oleg Nesterov,
Peter Zijlstra, Thomas Gleixner
Collect the various scheduler and task state debugging APIs scattered
around <linux/sched.h> into the new <linux/sched/debug.h> header.
In particular the show_regs() and show_stack() prototype affects many files,
update them.
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
arch/alpha/kernel/process.c | 1 +
arch/alpha/kernel/traps.c | 1 +
arch/arc/kernel/ctx_sw.c | 1 +
arch/arc/kernel/stacktrace.c | 2 ++
arch/arc/kernel/troubleshoot.c | 1 +
arch/arm/kernel/process.c | 1 +
arch/arm/kernel/stacktrace.c | 1 +
arch/arm/kernel/traps.c | 1 +
arch/arm/mm/alignment.c | 1 +
arch/arm/mm/fault.c | 1 +
arch/arm/probes/kprobes/core.c | 1 +
arch/arm64/kernel/probes/kprobes.c | 1 +
arch/arm64/kernel/process.c | 1 +
arch/arm64/kernel/stacktrace.c | 1 +
arch/arm64/kernel/traps.c | 1 +
arch/arm64/mm/fault.c | 1 +
arch/avr32/kernel/nmi_debug.c | 1 +
arch/avr32/kernel/process.c | 1 +
arch/blackfin/kernel/dumpstack.c | 2 ++
arch/blackfin/kernel/early_printk.c | 1 +
arch/blackfin/kernel/nmi.c | 1 +
arch/blackfin/kernel/process.c | 1 +
arch/blackfin/kernel/trace.c | 1 +
arch/blackfin/kernel/traps.c | 1 +
arch/blackfin/mach-common/ints-priority.c | 1 +
arch/blackfin/mm/isram-driver.c | 1 +
arch/c6x/kernel/traps.c | 1 +
arch/cris/arch-v10/kernel/process.c | 1 +
arch/cris/arch-v10/kernel/traps.c | 2 ++
arch/cris/arch-v32/kernel/process.c | 1 +
arch/cris/arch-v32/kernel/traps.c | 2 ++
arch/cris/kernel/irq.c | 1 +
arch/cris/kernel/stacktrace.c | 2 +-
arch/cris/kernel/traps.c | 1 +
arch/frv/kernel/process.c | 1 +
arch/frv/kernel/traps.c | 1 +
arch/h8300/kernel/process.c | 1 +
arch/h8300/kernel/traps.c | 1 +
arch/hexagon/kernel/process.c | 1 +
arch/hexagon/kernel/traps.c | 1 +
arch/hexagon/kernel/vm_events.c | 1 +
arch/ia64/hp/sim/simserial.c | 1 +
arch/ia64/kernel/mca.c | 1 +
arch/ia64/kernel/process.c | 1 +
arch/ia64/kernel/traps.c | 1 +
arch/m32r/kernel/process.c | 1 +
arch/m32r/kernel/traps.c | 1 +
arch/m68k/kernel/process.c | 1 +
arch/m68k/kernel/traps.c | 1 +
arch/m68k/mac/macints.c | 1 +
arch/metag/kernel/process.c | 1 +
arch/metag/kernel/stacktrace.c | 1 +
arch/metag/kernel/traps.c | 1 +
arch/metag/mm/fault.c | 1 +
arch/microblaze/kernel/exceptions.c | 1 +
arch/microblaze/kernel/process.c | 1 +
arch/microblaze/kernel/traps.c | 1 +
arch/mips/kernel/process.c | 1 +
arch/mips/kernel/stacktrace.c | 1 +
arch/mips/kernel/traps.c | 1 +
arch/mips/sgi-ip22/ip28-berr.c | 1 +
arch/mips/sgi-ip27/ip27-berr.c | 1 +
arch/mips/sgi-ip32/ip32-berr.c | 1 +
arch/mips/sgi-ip32/ip32-irq.c | 1 +
arch/mn10300/kernel/process.c | 1 +
arch/mn10300/kernel/traps.c | 1 +
arch/nios2/kernel/process.c | 1 +
arch/nios2/kernel/traps.c | 1 +
arch/nios2/mm/fault.c | 1 +
arch/openrisc/kernel/process.c | 1 +
arch/openrisc/kernel/traps.c | 1 +
arch/parisc/kernel/pa7300lc.c | 1 +
arch/parisc/kernel/process.c | 1 +
arch/parisc/kernel/signal.c | 1 +
arch/parisc/kernel/traps.c | 1 +
arch/parisc/kernel/unaligned.c | 1 +
arch/parisc/mm/fault.c | 1 +
arch/powerpc/kernel/process.c | 1 +
arch/powerpc/kernel/stacktrace.c | 1 +
arch/powerpc/kernel/traps.c | 1 +
arch/s390/kernel/dumpstack.c | 1 +
arch/s390/kernel/process.c | 1 +
arch/s390/kernel/stacktrace.c | 1 +
arch/s390/kernel/traps.c | 1 +
arch/s390/mm/fault.c | 1 +
arch/score/kernel/traps.c | 1 +
arch/sh/kernel/dumpstack.c | 1 +
arch/sh/kernel/nmi_debug.c | 1 +
arch/sh/kernel/process_32.c | 1 +
arch/sh/kernel/process_64.c | 1 +
arch/sh/kernel/stacktrace.c | 1 +
arch/sh/kernel/traps.c | 1 +
arch/sh/kernel/traps_64.c | 1 +
arch/sparc/kernel/process_32.c | 1 +
arch/sparc/kernel/process_64.c | 1 +
arch/sparc/kernel/stacktrace.c | 1 +
arch/sparc/kernel/sun4m_irq.c | 1 +
arch/sparc/kernel/sys_sparc_32.c | 1 +
arch/sparc/kernel/sys_sparc_64.c | 1 +
arch/sparc/kernel/traps_32.c | 1 +
arch/sparc/kernel/traps_64.c | 1 +
arch/sparc/mm/fault_64.c | 1 +
arch/tile/include/asm/stack.h | 2 ++
arch/tile/kernel/process.c | 1 +
arch/tile/kernel/signal.c | 1 +
arch/tile/kernel/stack.c | 1 +
arch/tile/kernel/traps.c | 1 +
arch/tile/kernel/unaligned.c | 1 +
arch/tile/mm/fault.c | 1 +
arch/um/drivers/mconsole_kern.c | 1 +
arch/um/kernel/process.c | 1 +
arch/um/kernel/sysrq.c | 2 ++
arch/um/kernel/trap.c | 1 +
arch/unicore32/kernel/process.c | 1 +
arch/unicore32/kernel/stacktrace.c | 1 +
arch/unicore32/kernel/traps.c | 1 +
arch/unicore32/mm/alignment.c | 1 +
arch/x86/kernel/amd_gart_64.c | 1 +
arch/x86/kernel/doublefault.c | 1 +
arch/x86/kernel/dumpstack.c | 1 +
arch/x86/kernel/dumpstack_32.c | 1 +
arch/x86/kernel/dumpstack_64.c | 1 +
arch/x86/kernel/kprobes/core.c | 1 +
arch/x86/kernel/nmi.c | 1 +
arch/x86/kernel/process.c | 1 +
arch/x86/kernel/stacktrace.c | 1 +
arch/x86/mm/extable.c | 2 ++
arch/x86/platform/uv/uv_nmi.c | 1 +
arch/x86/um/sysrq_32.c | 1 +
arch/x86/um/sysrq_64.c | 1 +
arch/xtensa/kernel/process.c | 1 +
arch/xtensa/kernel/traps.c | 1 +
drivers/base/power/main.c | 1 +
drivers/tty/sysrq.c | 2 ++
drivers/tty/tty_ldsem.c | 1 +
drivers/tty/vt/keyboard.c | 2 ++
fs/proc/base.c | 1 +
include/linux/sched.h | 36 ------------------------------------
include/linux/sched/debug.h | 50 ++++++++++++++++++++++++++++++++++++++++++++++++++
kernel/debug/kdb/kdb_bt.c | 1 +
kernel/debug/kdb/kdb_main.c | 1 +
kernel/hung_task.c | 1 +
kernel/latencytop.c | 1 +
kernel/locking/mutex.c | 1 +
kernel/locking/rtmutex-debug.c | 1 +
kernel/locking/rtmutex.c | 1 +
kernel/locking/rwsem-spinlock.c | 1 +
kernel/locking/rwsem-xadd.c | 1 +
kernel/locking/rwsem.c | 1 +
kernel/locking/semaphore.c | 1 +
kernel/panic.c | 1 +
kernel/power/process.c | 1 +
kernel/printk/printk.c | 1 +
kernel/rcu/tree.c | 1 +
kernel/rcu/tree_plugin.h | 1 +
kernel/rcu/update.c | 1 +
kernel/sched/completion.c | 1 +
kernel/sched/sched.h | 2 +-
kernel/sched/wait.c | 1 +
kernel/signal.c | 1 +
kernel/time/alarmtimer.c | 1 +
kernel/time/hrtimer.c | 1 +
kernel/time/timer.c | 1 +
kernel/watchdog.c | 1 +
kernel/watchdog_hld.c | 2 ++
lib/dump_stack.c | 1 +
lib/nmi_backtrace.c | 1 +
167 files changed, 225 insertions(+), 38 deletions(-)
diff --git a/arch/alpha/kernel/process.c b/arch/alpha/kernel/process.c
index bca963a4aa48..88f7a974d311 100644
--- a/arch/alpha/kernel/process.c
+++ b/arch/alpha/kernel/process.c
@@ -11,6 +11,7 @@
#include <linux/errno.h>
#include <linux/module.h>
#include <linux/sched.h>
+#include <linux/sched/debug.h>
#include <linux/kernel.h>
#include <linux/mm.h>
#include <linux/smp.h>
diff --git a/arch/alpha/kernel/traps.c b/arch/alpha/kernel/traps.c
index 9596cfcbd26f..2f196d38690e 100644
--- a/arch/alpha/kernel/traps.c
+++ b/arch/alpha/kernel/traps.c
@@ -11,6 +11,7 @@
#include <linux/jiffies.h>
#include <linux/mm.h>
#include <linux/sched/signal.h>
+#include <linux/sched/debug.h>
#include <linux/tty.h>
#include <linux/delay.h>
#include <linux/module.h>
diff --git a/arch/arc/kernel/ctx_sw.c b/arch/arc/kernel/ctx_sw.c
index 6f4cb0dab1b9..9e1ae9d41925 100644
--- a/arch/arc/kernel/ctx_sw.c
+++ b/arch/arc/kernel/ctx_sw.c
@@ -16,6 +16,7 @@
#include <asm/asm-offsets.h>
#include <linux/sched.h>
+#include <linux/sched/debug.h>
#ifdef CONFIG_ARC_PLAT_EZNPS
#include <plat/ctop.h>
#endif
diff --git a/arch/arc/kernel/stacktrace.c b/arch/arc/kernel/stacktrace.c
index b9192a653b7e..74315f302971 100644
--- a/arch/arc/kernel/stacktrace.c
+++ b/arch/arc/kernel/stacktrace.c
@@ -28,6 +28,8 @@
#include <linux/export.h>
#include <linux/stacktrace.h>
#include <linux/kallsyms.h>
+#include <linux/sched/debug.h>
+
#include <asm/arcregs.h>
#include <asm/unwind.h>
#include <asm/switch_to.h>
diff --git a/arch/arc/kernel/troubleshoot.c b/arch/arc/kernel/troubleshoot.c
index 0c48907f56a9..f9caf79186d4 100644
--- a/arch/arc/kernel/troubleshoot.c
+++ b/arch/arc/kernel/troubleshoot.c
@@ -14,6 +14,7 @@
#include <linux/proc_fs.h>
#include <linux/file.h>
#include <linux/sched/mm.h>
+#include <linux/sched/debug.h>
#include <asm/arcregs.h>
#include <asm/irqflags.h>
diff --git a/arch/arm/kernel/process.c b/arch/arm/kernel/process.c
index 91d2d5b01414..03d46395d1ff 100644
--- a/arch/arm/kernel/process.c
+++ b/arch/arm/kernel/process.c
@@ -12,6 +12,7 @@
#include <linux/export.h>
#include <linux/sched.h>
+#include <linux/sched/debug.h>
#include <linux/kernel.h>
#include <linux/mm.h>
#include <linux/stddef.h>
diff --git a/arch/arm/kernel/stacktrace.c b/arch/arm/kernel/stacktrace.c
index 92b72375c4c7..3a2fa203637a 100644
--- a/arch/arm/kernel/stacktrace.c
+++ b/arch/arm/kernel/stacktrace.c
@@ -1,5 +1,6 @@
#include <linux/export.h>
#include <linux/sched.h>
+#include <linux/sched/debug.h>
#include <linux/stacktrace.h>
#include <asm/stacktrace.h>
diff --git a/arch/arm/kernel/traps.c b/arch/arm/kernel/traps.c
index dc5f1a22b3c9..a9dad001b97d 100644
--- a/arch/arm/kernel/traps.c
+++ b/arch/arm/kernel/traps.c
@@ -25,6 +25,7 @@
#include <linux/delay.h>
#include <linux/init.h>
#include <linux/sched/signal.h>
+#include <linux/sched/debug.h>
#include <linux/irq.h>
#include <linux/atomic.h>
diff --git a/arch/arm/mm/alignment.c b/arch/arm/mm/alignment.c
index d7fe2de9cc9e..2c96190e018b 100644
--- a/arch/arm/mm/alignment.c
+++ b/arch/arm/mm/alignment.c
@@ -14,6 +14,7 @@
#include <linux/moduleparam.h>
#include <linux/compiler.h>
#include <linux/kernel.h>
+#include <linux/sched/debug.h>
#include <linux/errno.h>
#include <linux/string.h>
#include <linux/proc_fs.h>
diff --git a/arch/arm/mm/fault.c b/arch/arm/mm/fault.c
index ce07bf408308..6798d80d25ac 100644
--- a/arch/arm/mm/fault.c
+++ b/arch/arm/mm/fault.c
@@ -17,6 +17,7 @@
#include <linux/uaccess.h>
#include <linux/page-flags.h>
#include <linux/sched/signal.h>
+#include <linux/sched/debug.h>
#include <linux/highmem.h>
#include <linux/perf_event.h>
diff --git a/arch/arm/probes/kprobes/core.c b/arch/arm/probes/kprobes/core.c
index a4ec240ee7ba..b6dc9d838a9a 100644
--- a/arch/arm/probes/kprobes/core.c
+++ b/arch/arm/probes/kprobes/core.c
@@ -24,6 +24,7 @@
#include <linux/module.h>
#include <linux/slab.h>
#include <linux/stop_machine.h>
+#include <linux/sched/debug.h>
#include <linux/stringify.h>
#include <asm/traps.h>
#include <asm/opcodes.h>
diff --git a/arch/arm64/kernel/probes/kprobes.c b/arch/arm64/kernel/probes/kprobes.c
index f0593c92279b..2a07aae5b8a2 100644
--- a/arch/arm64/kernel/probes/kprobes.c
+++ b/arch/arm64/kernel/probes/kprobes.c
@@ -22,6 +22,7 @@
#include <linux/extable.h>
#include <linux/slab.h>
#include <linux/stop_machine.h>
+#include <linux/sched/debug.h>
#include <linux/stringify.h>
#include <asm/traps.h>
#include <asm/ptrace.h>
diff --git a/arch/arm64/kernel/process.c b/arch/arm64/kernel/process.c
index a3a2816ba73a..b2b680919e6d 100644
--- a/arch/arm64/kernel/process.c
+++ b/arch/arm64/kernel/process.c
@@ -24,6 +24,7 @@
#include <linux/efi.h>
#include <linux/export.h>
#include <linux/sched.h>
+#include <linux/sched/debug.h>
#include <linux/kernel.h>
#include <linux/mm.h>
#include <linux/stddef.h>
diff --git a/arch/arm64/kernel/stacktrace.c b/arch/arm64/kernel/stacktrace.c
index 8a552a33c6ef..7597e42feeea 100644
--- a/arch/arm64/kernel/stacktrace.c
+++ b/arch/arm64/kernel/stacktrace.c
@@ -19,6 +19,7 @@
#include <linux/export.h>
#include <linux/ftrace.h>
#include <linux/sched.h>
+#include <linux/sched/debug.h>
#include <linux/stacktrace.h>
#include <asm/irq.h>
diff --git a/arch/arm64/kernel/traps.c b/arch/arm64/kernel/traps.c
index 643adaed694c..9be98a817635 100644
--- a/arch/arm64/kernel/traps.c
+++ b/arch/arm64/kernel/traps.c
@@ -30,6 +30,7 @@
#include <linux/delay.h>
#include <linux/init.h>
#include <linux/sched/signal.h>
+#include <linux/sched/debug.h>
#include <linux/syscalls.h>
#include <asm/atomic.h>
diff --git a/arch/arm64/mm/fault.c b/arch/arm64/mm/fault.c
index f2d54ee2fa96..6c7e16d212e0 100644
--- a/arch/arm64/mm/fault.c
+++ b/arch/arm64/mm/fault.c
@@ -27,6 +27,7 @@
#include <linux/uaccess.h>
#include <linux/page-flags.h>
#include <linux/sched/signal.h>
+#include <linux/sched/debug.h>
#include <linux/highmem.h>
#include <linux/perf_event.h>
#include <linux/preempt.h>
diff --git a/arch/avr32/kernel/nmi_debug.c b/arch/avr32/kernel/nmi_debug.c
index 3414b8566c29..25823049bb99 100644
--- a/arch/avr32/kernel/nmi_debug.c
+++ b/arch/avr32/kernel/nmi_debug.c
@@ -9,6 +9,7 @@
#include <linux/kdebug.h>
#include <linux/notifier.h>
#include <linux/sched.h>
+#include <linux/sched/debug.h>
#include <asm/irq.h>
diff --git a/arch/avr32/kernel/process.c b/arch/avr32/kernel/process.c
index 68e5b9dac059..dac022d88d9d 100644
--- a/arch/avr32/kernel/process.c
+++ b/arch/avr32/kernel/process.c
@@ -6,6 +6,7 @@
* published by the Free Software Foundation.
*/
#include <linux/sched.h>
+#include <linux/sched/debug.h>
#include <linux/module.h>
#include <linux/kallsyms.h>
#include <linux/fs.h>
diff --git a/arch/blackfin/kernel/dumpstack.c b/arch/blackfin/kernel/dumpstack.c
index 95ba6d9e9a3d..3c992c1f8ef2 100644
--- a/arch/blackfin/kernel/dumpstack.c
+++ b/arch/blackfin/kernel/dumpstack.c
@@ -10,6 +10,8 @@
#include <linux/mm.h>
#include <linux/uaccess.h>
#include <linux/module.h>
+#include <linux/sched/debug.h>
+
#include <asm/trace.h>
/*
diff --git a/arch/blackfin/kernel/early_printk.c b/arch/blackfin/kernel/early_printk.c
index 61fbd2de993d..4b89af9243d3 100644
--- a/arch/blackfin/kernel/early_printk.c
+++ b/arch/blackfin/kernel/early_printk.c
@@ -8,6 +8,7 @@
*/
#include <linux/kernel.h>
+#include <linux/sched/debug.h>
#include <linux/init.h>
#include <linux/serial_core.h>
#include <linux/console.h>
diff --git a/arch/blackfin/kernel/nmi.c b/arch/blackfin/kernel/nmi.c
index 9919d29287dc..633c37083e87 100644
--- a/arch/blackfin/kernel/nmi.c
+++ b/arch/blackfin/kernel/nmi.c
@@ -17,6 +17,7 @@
#include <linux/nmi.h>
#include <linux/smp.h>
#include <linux/timer.h>
+#include <linux/sched/debug.h>
#include <asm/blackfin.h>
#include <linux/atomic.h>
#include <asm/cacheflush.h>
diff --git a/arch/blackfin/kernel/process.c b/arch/blackfin/kernel/process.c
index 4aa5545c4fde..e95d094c20a6 100644
--- a/arch/blackfin/kernel/process.c
+++ b/arch/blackfin/kernel/process.c
@@ -12,6 +12,7 @@
#include <linux/uaccess.h>
#include <linux/slab.h>
#include <linux/sched.h>
+#include <linux/sched/debug.h>
#include <linux/tick.h>
#include <linux/fs.h>
#include <linux/err.h>
diff --git a/arch/blackfin/kernel/trace.c b/arch/blackfin/kernel/trace.c
index 01e546ad2f7a..23c05b8effb3 100644
--- a/arch/blackfin/kernel/trace.c
+++ b/arch/blackfin/kernel/trace.c
@@ -12,6 +12,7 @@
#include <linux/mm.h>
#include <linux/oom.h>
#include <linux/sched/signal.h>
+#include <linux/sched/debug.h>
#include <linux/uaccess.h>
#include <linux/module.h>
#include <linux/kallsyms.h>
diff --git a/arch/blackfin/kernel/traps.c b/arch/blackfin/kernel/traps.c
index 32676d7721b1..a323a40a46e9 100644
--- a/arch/blackfin/kernel/traps.c
+++ b/arch/blackfin/kernel/traps.c
@@ -10,6 +10,7 @@
#include <linux/uaccess.h>
#include <linux/module.h>
#include <linux/sched/signal.h>
+#include <linux/sched/debug.h>
#include <asm/traps.h>
#include <asm/cplb.h>
#include <asm/blackfin.h>
diff --git a/arch/blackfin/mach-common/ints-priority.c b/arch/blackfin/mach-common/ints-priority.c
index 4986b4fbcee9..13e94bf9d8ba 100644
--- a/arch/blackfin/mach-common/ints-priority.c
+++ b/arch/blackfin/mach-common/ints-priority.c
@@ -16,6 +16,7 @@
#include <linux/seq_file.h>
#include <linux/irq.h>
#include <linux/sched.h>
+#include <linux/sched/debug.h>
#include <linux/syscore_ops.h>
#include <linux/gpio.h>
#include <asm/delay.h>
diff --git a/arch/blackfin/mm/isram-driver.c b/arch/blackfin/mm/isram-driver.c
index 7e2e674ed444..aaa1e64b753b 100644
--- a/arch/blackfin/mm/isram-driver.c
+++ b/arch/blackfin/mm/isram-driver.c
@@ -14,6 +14,7 @@
#include <linux/slab.h>
#include <linux/spinlock.h>
#include <linux/sched.h>
+#include <linux/sched/debug.h>
#include <asm/blackfin.h>
#include <asm/dma.h>
diff --git a/arch/c6x/kernel/traps.c b/arch/c6x/kernel/traps.c
index dcc2c2f6d67c..09b8a40d5680 100644
--- a/arch/c6x/kernel/traps.c
+++ b/arch/c6x/kernel/traps.c
@@ -10,6 +10,7 @@
*/
#include <linux/module.h>
#include <linux/ptrace.h>
+#include <linux/sched/debug.h>
#include <linux/kallsyms.h>
#include <linux/bug.h>
diff --git a/arch/cris/arch-v10/kernel/process.c b/arch/cris/arch-v10/kernel/process.c
index 96e5afef6b47..068a40374200 100644
--- a/arch/cris/arch-v10/kernel/process.c
+++ b/arch/cris/arch-v10/kernel/process.c
@@ -11,6 +11,7 @@
*/
#include <linux/sched.h>
+#include <linux/sched/debug.h>
#include <linux/slab.h>
#include <linux/err.h>
#include <linux/fs.h>
diff --git a/arch/cris/arch-v10/kernel/traps.c b/arch/cris/arch-v10/kernel/traps.c
index 96d004fe9740..c0a501f29bd8 100644
--- a/arch/cris/arch-v10/kernel/traps.c
+++ b/arch/cris/arch-v10/kernel/traps.c
@@ -10,6 +10,8 @@
#include <linux/ptrace.h>
#include <linux/uaccess.h>
+#include <linux/sched/debug.h>
+
#include <arch/sv_addr_ag.h>
#include <arch/system.h>
diff --git a/arch/cris/arch-v32/kernel/process.c b/arch/cris/arch-v32/kernel/process.c
index 4d1afa9f9fd3..613c2d71bf10 100644
--- a/arch/cris/arch-v32/kernel/process.c
+++ b/arch/cris/arch-v32/kernel/process.c
@@ -9,6 +9,7 @@
*/
#include <linux/sched.h>
+#include <linux/sched/debug.h>
#include <linux/slab.h>
#include <linux/err.h>
#include <linux/fs.h>
diff --git a/arch/cris/arch-v32/kernel/traps.c b/arch/cris/arch-v32/kernel/traps.c
index d79666aefd71..ff9d2f9c0ef9 100644
--- a/arch/cris/arch-v32/kernel/traps.c
+++ b/arch/cris/arch-v32/kernel/traps.c
@@ -5,6 +5,8 @@
#include <linux/ptrace.h>
#include <linux/module.h>
#include <linux/uaccess.h>
+#include <linux/sched/debug.h>
+
#include <hwregs/supp_reg.h>
#include <hwregs/intr_vect_defs.h>
#include <asm/irq.h>
diff --git a/arch/cris/kernel/irq.c b/arch/cris/kernel/irq.c
index 694850e8f077..09b864f46f8a 100644
--- a/arch/cris/kernel/irq.c
+++ b/arch/cris/kernel/irq.c
@@ -22,6 +22,7 @@
#include <linux/module.h>
#include <linux/ptrace.h>
#include <linux/irq.h>
+#include <linux/sched/debug.h>
#include <linux/kernel_stat.h>
#include <linux/signal.h>
diff --git a/arch/cris/kernel/stacktrace.c b/arch/cris/kernel/stacktrace.c
index 99838c74456d..f1cc3aaacd8d 100644
--- a/arch/cris/kernel/stacktrace.c
+++ b/arch/cris/kernel/stacktrace.c
@@ -1,5 +1,5 @@
#include <linux/sched.h>
-#include <linux/stacktrace.h>
+#include <linux/sched/debug.h>
#include <linux/stacktrace.h>
#include <asm/stacktrace.h>
diff --git a/arch/cris/kernel/traps.c b/arch/cris/kernel/traps.c
index b2a312a7afc6..a01636a12a6e 100644
--- a/arch/cris/kernel/traps.c
+++ b/arch/cris/kernel/traps.c
@@ -15,6 +15,7 @@
#include <linux/init.h>
#include <linux/module.h>
#include <linux/utsname.h>
+#include <linux/sched/debug.h>
#ifdef CONFIG_KALLSYMS
#include <linux/kallsyms.h>
#endif
diff --git a/arch/frv/kernel/process.c b/arch/frv/kernel/process.c
index b306241c4ef2..cf4c34c09ab3 100644
--- a/arch/frv/kernel/process.c
+++ b/arch/frv/kernel/process.c
@@ -13,6 +13,7 @@
#include <linux/module.h>
#include <linux/errno.h>
#include <linux/sched.h>
+#include <linux/sched/debug.h>
#include <linux/kernel.h>
#include <linux/mm.h>
#include <linux/smp.h>
diff --git a/arch/frv/kernel/traps.c b/arch/frv/kernel/traps.c
index 43c134d6081c..ce29991e4219 100644
--- a/arch/frv/kernel/traps.c
+++ b/arch/frv/kernel/traps.c
@@ -10,6 +10,7 @@
*/
#include <linux/sched/signal.h>
+#include <linux/sched/debug.h>
#include <linux/signal.h>
#include <linux/kernel.h>
#include <linux/mm.h>
diff --git a/arch/h8300/kernel/process.c b/arch/h8300/kernel/process.c
index 891974a11704..d7cabf373fe3 100644
--- a/arch/h8300/kernel/process.c
+++ b/arch/h8300/kernel/process.c
@@ -25,6 +25,7 @@
#include <linux/errno.h>
#include <linux/module.h>
#include <linux/sched.h>
+#include <linux/sched/debug.h>
#include <linux/kernel.h>
#include <linux/mm.h>
#include <linux/smp.h>
diff --git a/arch/h8300/kernel/traps.c b/arch/h8300/kernel/traps.c
index 044a36125846..ee7e3ce40d78 100644
--- a/arch/h8300/kernel/traps.c
+++ b/arch/h8300/kernel/traps.c
@@ -16,6 +16,7 @@
#include <linux/types.h>
#include <linux/sched.h>
+#include <linux/sched/debug.h>
#include <linux/kernel.h>
#include <linux/errno.h>
#include <linux/init.h>
diff --git a/arch/hexagon/kernel/process.c b/arch/hexagon/kernel/process.c
index d9edfd3fc52a..3bdd9592d025 100644
--- a/arch/hexagon/kernel/process.c
+++ b/arch/hexagon/kernel/process.c
@@ -19,6 +19,7 @@
*/
#include <linux/sched.h>
+#include <linux/sched/debug.h>
#include <linux/types.h>
#include <linux/module.h>
#include <linux/tick.h>
diff --git a/arch/hexagon/kernel/traps.c b/arch/hexagon/kernel/traps.c
index 4496bcf605ef..b55f13c70b34 100644
--- a/arch/hexagon/kernel/traps.c
+++ b/arch/hexagon/kernel/traps.c
@@ -20,6 +20,7 @@
#include <linux/init.h>
#include <linux/sched/signal.h>
+#include <linux/sched/debug.h>
#include <linux/module.h>
#include <linux/kallsyms.h>
#include <linux/kdebug.h>
diff --git a/arch/hexagon/kernel/vm_events.c b/arch/hexagon/kernel/vm_events.c
index 741aaa917cda..04f57ef22009 100644
--- a/arch/hexagon/kernel/vm_events.c
+++ b/arch/hexagon/kernel/vm_events.c
@@ -19,6 +19,7 @@
*/
#include <linux/kernel.h>
+#include <linux/sched/debug.h>
#include <asm/registers.h>
#include <linux/irq.h>
#include <linux/hardirq.h>
diff --git a/arch/ia64/hp/sim/simserial.c b/arch/ia64/hp/sim/simserial.c
index 21fd50def270..de8cba121013 100644
--- a/arch/ia64/hp/sim/simserial.c
+++ b/arch/ia64/hp/sim/simserial.c
@@ -14,6 +14,7 @@
#include <linux/init.h>
#include <linux/errno.h>
#include <linux/sched.h>
+#include <linux/sched/debug.h>
#include <linux/tty.h>
#include <linux/tty_flip.h>
#include <linux/major.h>
diff --git a/arch/ia64/kernel/mca.c b/arch/ia64/kernel/mca.c
index 5ac51069e453..f9fe3ac64242 100644
--- a/arch/ia64/kernel/mca.c
+++ b/arch/ia64/kernel/mca.c
@@ -73,6 +73,7 @@
#include <linux/types.h>
#include <linux/init.h>
#include <linux/sched/signal.h>
+#include <linux/sched/debug.h>
#include <linux/interrupt.h>
#include <linux/irq.h>
#include <linux/bootmem.h>
diff --git a/arch/ia64/kernel/process.c b/arch/ia64/kernel/process.c
index 52deab683ba1..804b251ee5d1 100644
--- a/arch/ia64/kernel/process.c
+++ b/arch/ia64/kernel/process.c
@@ -20,6 +20,7 @@
#include <linux/notifier.h>
#include <linux/personality.h>
#include <linux/sched.h>
+#include <linux/sched/debug.h>
#include <linux/stddef.h>
#include <linux/thread_info.h>
#include <linux/unistd.h>
diff --git a/arch/ia64/kernel/traps.c b/arch/ia64/kernel/traps.c
index 39fad147d6fe..4212101b89f5 100644
--- a/arch/ia64/kernel/traps.c
+++ b/arch/ia64/kernel/traps.c
@@ -10,6 +10,7 @@
#include <linux/kernel.h>
#include <linux/init.h>
#include <linux/sched/signal.h>
+#include <linux/sched/debug.h>
#include <linux/tty.h>
#include <linux/vt_kern.h> /* For unblank_screen() */
#include <linux/module.h> /* for EXPORT_SYMBOL */
diff --git a/arch/m32r/kernel/process.c b/arch/m32r/kernel/process.c
index e0568bee60c0..1a227c1fdb1a 100644
--- a/arch/m32r/kernel/process.c
+++ b/arch/m32r/kernel/process.c
@@ -22,6 +22,7 @@
#include <linux/fs.h>
#include <linux/slab.h>
+#include <linux/sched/debug.h>
#include <linux/module.h>
#include <linux/ptrace.h>
#include <linux/unistd.h>
diff --git a/arch/m32r/kernel/traps.c b/arch/m32r/kernel/traps.c
index c3c5fdfae920..7c05bb393597 100644
--- a/arch/m32r/kernel/traps.c
+++ b/arch/m32r/kernel/traps.c
@@ -14,6 +14,7 @@
#include <linux/kallsyms.h>
#include <linux/stddef.h>
#include <linux/ptrace.h>
+#include <linux/sched/debug.h>
#include <linux/mm.h>
#include <asm/page.h>
#include <asm/processor.h>
diff --git a/arch/m68k/kernel/process.c b/arch/m68k/kernel/process.c
index aaf28f8e342d..fd357b25ffc0 100644
--- a/arch/m68k/kernel/process.c
+++ b/arch/m68k/kernel/process.c
@@ -13,6 +13,7 @@
#include <linux/errno.h>
#include <linux/module.h>
#include <linux/sched.h>
+#include <linux/sched/debug.h>
#include <linux/kernel.h>
#include <linux/mm.h>
#include <linux/slab.h>
diff --git a/arch/m68k/kernel/traps.c b/arch/m68k/kernel/traps.c
index 558f38402737..a926d2c88898 100644
--- a/arch/m68k/kernel/traps.c
+++ b/arch/m68k/kernel/traps.c
@@ -19,6 +19,7 @@
*/
#include <linux/sched.h>
+#include <linux/sched/debug.h>
#include <linux/signal.h>
#include <linux/kernel.h>
#include <linux/mm.h>
diff --git a/arch/m68k/mac/macints.c b/arch/m68k/mac/macints.c
index 9f98c0871901..c6103f640ad5 100644
--- a/arch/m68k/mac/macints.c
+++ b/arch/m68k/mac/macints.c
@@ -110,6 +110,7 @@
#include <linux/types.h>
#include <linux/kernel.h>
#include <linux/sched.h>
+#include <linux/sched/debug.h>
#include <linux/interrupt.h>
#include <linux/irq.h>
#include <linux/delay.h>
diff --git a/arch/metag/kernel/process.c b/arch/metag/kernel/process.c
index 35062796edf2..2e611bd37515 100644
--- a/arch/metag/kernel/process.c
+++ b/arch/metag/kernel/process.c
@@ -8,6 +8,7 @@
#include <linux/errno.h>
#include <linux/export.h>
#include <linux/sched.h>
+#include <linux/sched/debug.h>
#include <linux/kernel.h>
#include <linux/mm.h>
#include <linux/unistd.h>
diff --git a/arch/metag/kernel/stacktrace.c b/arch/metag/kernel/stacktrace.c
index 5510361d5bea..4f806d66a58c 100644
--- a/arch/metag/kernel/stacktrace.c
+++ b/arch/metag/kernel/stacktrace.c
@@ -1,5 +1,6 @@
#include <linux/export.h>
#include <linux/sched.h>
+#include <linux/sched/debug.h>
#include <linux/stacktrace.h>
#include <asm/stacktrace.h>
diff --git a/arch/metag/kernel/traps.c b/arch/metag/kernel/traps.c
index 17b2e2e38d5a..5ce67f9124aa 100644
--- a/arch/metag/kernel/traps.c
+++ b/arch/metag/kernel/traps.c
@@ -10,6 +10,7 @@
#include <linux/export.h>
#include <linux/sched.h>
+#include <linux/sched/debug.h>
#include <linux/signal.h>
#include <linux/kernel.h>
#include <linux/mm.h>
diff --git a/arch/metag/mm/fault.c b/arch/metag/mm/fault.c
index c765b3621b9b..5055477486b6 100644
--- a/arch/metag/mm/fault.c
+++ b/arch/metag/mm/fault.c
@@ -8,6 +8,7 @@
#include <linux/mm.h>
#include <linux/kernel.h>
#include <linux/ptrace.h>
+#include <linux/sched/debug.h>
#include <linux/interrupt.h>
#include <linux/uaccess.h>
diff --git a/arch/microblaze/kernel/exceptions.c b/arch/microblaze/kernel/exceptions.c
index 42dd12a62ff5..e6f338d0496b 100644
--- a/arch/microblaze/kernel/exceptions.c
+++ b/arch/microblaze/kernel/exceptions.c
@@ -17,6 +17,7 @@
#include <linux/kernel.h>
#include <linux/signal.h>
#include <linux/sched.h>
+#include <linux/sched/debug.h>
#include <linux/kallsyms.h>
#include <asm/exceptions.h>
diff --git a/arch/microblaze/kernel/process.c b/arch/microblaze/kernel/process.c
index b2dd37196b3b..8c5fdb2e2850 100644
--- a/arch/microblaze/kernel/process.c
+++ b/arch/microblaze/kernel/process.c
@@ -11,6 +11,7 @@
#include <linux/cpu.h>
#include <linux/export.h>
#include <linux/sched.h>
+#include <linux/sched/debug.h>
#include <linux/pm.h>
#include <linux/tick.h>
#include <linux/bitops.h>
diff --git a/arch/microblaze/kernel/traps.c b/arch/microblaze/kernel/traps.c
index cb619533a192..45bbba9d919f 100644
--- a/arch/microblaze/kernel/traps.c
+++ b/arch/microblaze/kernel/traps.c
@@ -12,6 +12,7 @@
#include <linux/kernel.h>
#include <linux/kallsyms.h>
#include <linux/sched.h>
+#include <linux/sched/debug.h>
#include <linux/debug_locks.h>
#include <asm/exceptions.h>
diff --git a/arch/mips/kernel/process.c b/arch/mips/kernel/process.c
index 5142b1dfe8a7..9a8d5b0e6f31 100644
--- a/arch/mips/kernel/process.c
+++ b/arch/mips/kernel/process.c
@@ -11,6 +11,7 @@
*/
#include <linux/errno.h>
#include <linux/sched.h>
+#include <linux/sched/debug.h>
#include <linux/tick.h>
#include <linux/kernel.h>
#include <linux/mm.h>
diff --git a/arch/mips/kernel/stacktrace.c b/arch/mips/kernel/stacktrace.c
index 506021f62549..986f910961d9 100644
--- a/arch/mips/kernel/stacktrace.c
+++ b/arch/mips/kernel/stacktrace.c
@@ -4,6 +4,7 @@
* Copyright (C) 2006 Atsushi Nemoto <anemo@mba.ocn.ne.jp>
*/
#include <linux/sched.h>
+#include <linux/sched/debug.h>
#include <linux/stacktrace.h>
#include <linux/export.h>
#include <asm/stacktrace.h>
diff --git a/arch/mips/kernel/traps.c b/arch/mips/kernel/traps.c
index 6c7f9d7e92b3..8aed30a37a34 100644
--- a/arch/mips/kernel/traps.c
+++ b/arch/mips/kernel/traps.c
@@ -24,6 +24,7 @@
#include <linux/extable.h>
#include <linux/mm.h>
#include <linux/sched.h>
+#include <linux/sched/debug.h>
#include <linux/smp.h>
#include <linux/spinlock.h>
#include <linux/kallsyms.h>
diff --git a/arch/mips/sgi-ip22/ip28-berr.c b/arch/mips/sgi-ip22/ip28-berr.c
index 9960a8302eac..1f2a5bc4779e 100644
--- a/arch/mips/sgi-ip22/ip28-berr.c
+++ b/arch/mips/sgi-ip22/ip28-berr.c
@@ -8,6 +8,7 @@
#include <linux/init.h>
#include <linux/kernel.h>
#include <linux/sched.h>
+#include <linux/sched/debug.h>
#include <linux/seq_file.h>
#include <asm/addrspace.h>
diff --git a/arch/mips/sgi-ip27/ip27-berr.c b/arch/mips/sgi-ip27/ip27-berr.c
index 2e0edb385656..a4f61e1eb859 100644
--- a/arch/mips/sgi-ip27/ip27-berr.c
+++ b/arch/mips/sgi-ip27/ip27-berr.c
@@ -12,6 +12,7 @@
#include <linux/module.h>
#include <linux/signal.h> /* for SIGBUS */
#include <linux/sched.h> /* schow_regs(), force_sig() */
+#include <linux/sched/debug.h>
#include <asm/module.h>
#include <asm/sn/addrs.h>
diff --git a/arch/mips/sgi-ip32/ip32-berr.c b/arch/mips/sgi-ip32/ip32-berr.c
index ba8f46d80ab8..57d8c7486fe6 100644
--- a/arch/mips/sgi-ip32/ip32-berr.c
+++ b/arch/mips/sgi-ip32/ip32-berr.c
@@ -10,6 +10,7 @@
#include <linux/init.h>
#include <linux/kernel.h>
#include <linux/sched.h>
+#include <linux/sched/debug.h>
#include <asm/traps.h>
#include <linux/uaccess.h>
#include <asm/addrspace.h>
diff --git a/arch/mips/sgi-ip32/ip32-irq.c b/arch/mips/sgi-ip32/ip32-irq.c
index e0c7d9e142fa..26db9a98b8cc 100644
--- a/arch/mips/sgi-ip32/ip32-irq.c
+++ b/arch/mips/sgi-ip32/ip32-irq.c
@@ -18,6 +18,7 @@
#include <linux/mm.h>
#include <linux/random.h>
#include <linux/sched.h>
+#include <linux/sched/debug.h>
#include <asm/irq_cpu.h>
#include <asm/mipsregs.h>
diff --git a/arch/mn10300/kernel/process.c b/arch/mn10300/kernel/process.c
index e5def2217f72..a1e2f8301d94 100644
--- a/arch/mn10300/kernel/process.c
+++ b/arch/mn10300/kernel/process.c
@@ -11,6 +11,7 @@
#include <linux/module.h>
#include <linux/errno.h>
#include <linux/sched.h>
+#include <linux/sched/debug.h>
#include <linux/kernel.h>
#include <linux/mm.h>
#include <linux/smp.h>
diff --git a/arch/mn10300/kernel/traps.c b/arch/mn10300/kernel/traps.c
index a7a987c7954f..800fd0801969 100644
--- a/arch/mn10300/kernel/traps.c
+++ b/arch/mn10300/kernel/traps.c
@@ -10,6 +10,7 @@
* 2 of the Licence, or (at your option) any later version.
*/
#include <linux/sched.h>
+#include <linux/sched/debug.h>
#include <linux/kernel.h>
#include <linux/string.h>
#include <linux/errno.h>
diff --git a/arch/nios2/kernel/process.c b/arch/nios2/kernel/process.c
index 2f8c74f93e70..3ad87a6b119b 100644
--- a/arch/nios2/kernel/process.c
+++ b/arch/nios2/kernel/process.c
@@ -14,6 +14,7 @@
#include <linux/export.h>
#include <linux/sched.h>
+#include <linux/sched/debug.h>
#include <linux/tick.h>
#include <linux/uaccess.h>
diff --git a/arch/nios2/kernel/traps.c b/arch/nios2/kernel/traps.c
index 72ed30a93c85..8184e7d6b385 100644
--- a/arch/nios2/kernel/traps.c
+++ b/arch/nios2/kernel/traps.c
@@ -11,6 +11,7 @@
*/
#include <linux/sched.h>
+#include <linux/sched/debug.h>
#include <linux/kernel.h>
#include <linux/signal.h>
#include <linux/export.h>
diff --git a/arch/nios2/mm/fault.c b/arch/nios2/mm/fault.c
index affc4eb3f89e..0d18f74c611c 100644
--- a/arch/nios2/mm/fault.c
+++ b/arch/nios2/mm/fault.c
@@ -13,6 +13,7 @@
#include <linux/signal.h>
#include <linux/sched.h>
+#include <linux/sched/debug.h>
#include <linux/interrupt.h>
#include <linux/kernel.h>
#include <linux/errno.h>
diff --git a/arch/openrisc/kernel/process.c b/arch/openrisc/kernel/process.c
index d7990df9025a..25dc57ea3dee 100644
--- a/arch/openrisc/kernel/process.c
+++ b/arch/openrisc/kernel/process.c
@@ -22,6 +22,7 @@
#include <linux/errno.h>
#include <linux/sched.h>
+#include <linux/sched/debug.h>
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/mm.h>
diff --git a/arch/openrisc/kernel/traps.c b/arch/openrisc/kernel/traps.c
index a4574cb4b0fb..d220d385dd5d 100644
--- a/arch/openrisc/kernel/traps.c
+++ b/arch/openrisc/kernel/traps.c
@@ -22,6 +22,7 @@
#include <linux/init.h>
#include <linux/sched.h>
+#include <linux/sched/debug.h>
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/kmod.h>
diff --git a/arch/parisc/kernel/pa7300lc.c b/arch/parisc/kernel/pa7300lc.c
index 8a89780223aa..9b245fc67560 100644
--- a/arch/parisc/kernel/pa7300lc.c
+++ b/arch/parisc/kernel/pa7300lc.c
@@ -5,6 +5,7 @@
* Copyright (C) 2000 Philipp Rumpf */
#include <linux/sched.h>
+#include <linux/sched/debug.h>
#include <linux/smp.h>
#include <linux/kernel.h>
#include <asm/io.h>
diff --git a/arch/parisc/kernel/process.c b/arch/parisc/kernel/process.c
index ea6603ee8d24..8c283caf2b4d 100644
--- a/arch/parisc/kernel/process.c
+++ b/arch/parisc/kernel/process.c
@@ -43,6 +43,7 @@
#include <linux/personality.h>
#include <linux/ptrace.h>
#include <linux/sched.h>
+#include <linux/sched/debug.h>
#include <linux/slab.h>
#include <linux/stddef.h>
#include <linux/unistd.h>
diff --git a/arch/parisc/kernel/signal.c b/arch/parisc/kernel/signal.c
index e58925ac64d1..9e03296641d7 100644
--- a/arch/parisc/kernel/signal.c
+++ b/arch/parisc/kernel/signal.c
@@ -13,6 +13,7 @@
*/
#include <linux/sched.h>
+#include <linux/sched/debug.h>
#include <linux/mm.h>
#include <linux/smp.h>
#include <linux/kernel.h>
diff --git a/arch/parisc/kernel/traps.c b/arch/parisc/kernel/traps.c
index 378df9207406..991654c88eec 100644
--- a/arch/parisc/kernel/traps.c
+++ b/arch/parisc/kernel/traps.c
@@ -11,6 +11,7 @@
*/
#include <linux/sched.h>
+#include <linux/sched/debug.h>
#include <linux/kernel.h>
#include <linux/string.h>
#include <linux/errno.h>
diff --git a/arch/parisc/kernel/unaligned.c b/arch/parisc/kernel/unaligned.c
index a08ab481e556..e36f7b75ab07 100644
--- a/arch/parisc/kernel/unaligned.c
+++ b/arch/parisc/kernel/unaligned.c
@@ -24,6 +24,7 @@
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/sched/signal.h>
+#include <linux/sched/debug.h>
#include <linux/signal.h>
#include <linux/ratelimit.h>
#include <linux/uaccess.h>
diff --git a/arch/parisc/mm/fault.c b/arch/parisc/mm/fault.c
index 1a0b4f63f0e9..c3cac4ddfe9c 100644
--- a/arch/parisc/mm/fault.c
+++ b/arch/parisc/mm/fault.c
@@ -13,6 +13,7 @@
#include <linux/mm.h>
#include <linux/ptrace.h>
#include <linux/sched.h>
+#include <linux/sched/debug.h>
#include <linux/interrupt.h>
#include <linux/extable.h>
#include <linux/uaccess.h>
diff --git a/arch/powerpc/kernel/process.c b/arch/powerpc/kernel/process.c
index 04885cec24df..2d92a01b9c0f 100644
--- a/arch/powerpc/kernel/process.c
+++ b/arch/powerpc/kernel/process.c
@@ -16,6 +16,7 @@
#include <linux/errno.h>
#include <linux/sched.h>
+#include <linux/sched/debug.h>
#include <linux/kernel.h>
#include <linux/mm.h>
#include <linux/smp.h>
diff --git a/arch/powerpc/kernel/stacktrace.c b/arch/powerpc/kernel/stacktrace.c
index 4f24606afc3f..66711958493c 100644
--- a/arch/powerpc/kernel/stacktrace.c
+++ b/arch/powerpc/kernel/stacktrace.c
@@ -12,6 +12,7 @@
#include <linux/export.h>
#include <linux/sched.h>
+#include <linux/sched/debug.h>
#include <linux/stacktrace.h>
#include <asm/ptrace.h>
#include <asm/processor.h>
diff --git a/arch/powerpc/kernel/traps.c b/arch/powerpc/kernel/traps.c
index e6cc56b61d01..ff365f9de27a 100644
--- a/arch/powerpc/kernel/traps.c
+++ b/arch/powerpc/kernel/traps.c
@@ -17,6 +17,7 @@
#include <linux/errno.h>
#include <linux/sched.h>
+#include <linux/sched/debug.h>
#include <linux/kernel.h>
#include <linux/mm.h>
#include <linux/stddef.h>
diff --git a/arch/s390/kernel/dumpstack.c b/arch/s390/kernel/dumpstack.c
index 55d4fe174fd9..72c584d62f59 100644
--- a/arch/s390/kernel/dumpstack.c
+++ b/arch/s390/kernel/dumpstack.c
@@ -14,6 +14,7 @@
#include <linux/mm.h>
#include <linux/module.h>
#include <linux/sched.h>
+#include <linux/sched/debug.h>
#include <asm/processor.h>
#include <asm/debug.h>
#include <asm/dis.h>
diff --git a/arch/s390/kernel/process.c b/arch/s390/kernel/process.c
index 400d14f0b9f5..9355b0c05d25 100644
--- a/arch/s390/kernel/process.c
+++ b/arch/s390/kernel/process.c
@@ -11,6 +11,7 @@
#include <linux/compiler.h>
#include <linux/cpu.h>
#include <linux/sched.h>
+#include <linux/sched/debug.h>
#include <linux/kernel.h>
#include <linux/mm.h>
#include <linux/elfcore.h>
diff --git a/arch/s390/kernel/stacktrace.c b/arch/s390/kernel/stacktrace.c
index 355db9db8210..80cc00ca02fb 100644
--- a/arch/s390/kernel/stacktrace.c
+++ b/arch/s390/kernel/stacktrace.c
@@ -6,6 +6,7 @@
*/
#include <linux/sched.h>
+#include <linux/sched/debug.h>
#include <linux/stacktrace.h>
#include <linux/kallsyms.h>
#include <linux/module.h>
diff --git a/arch/s390/kernel/traps.c b/arch/s390/kernel/traps.c
index 283ad7840335..f787b9d8f54c 100644
--- a/arch/s390/kernel/traps.c
+++ b/arch/s390/kernel/traps.c
@@ -17,6 +17,7 @@
#include <linux/extable.h>
#include <linux/ptrace.h>
#include <linux/sched.h>
+#include <linux/sched/debug.h>
#include <linux/mm.h>
#include <linux/slab.h>
#include <linux/uaccess.h>
diff --git a/arch/s390/mm/fault.c b/arch/s390/mm/fault.c
index d1faae5cdd12..0a958c2b9fd0 100644
--- a/arch/s390/mm/fault.c
+++ b/arch/s390/mm/fault.c
@@ -12,6 +12,7 @@
#include <linux/perf_event.h>
#include <linux/signal.h>
#include <linux/sched.h>
+#include <linux/sched/debug.h>
#include <linux/kernel.h>
#include <linux/errno.h>
#include <linux/string.h>
diff --git a/arch/score/kernel/traps.c b/arch/score/kernel/traps.c
index 42956543a3fc..7ba9d67ab0ef 100644
--- a/arch/score/kernel/traps.c
+++ b/arch/score/kernel/traps.c
@@ -25,6 +25,7 @@
#include <linux/module.h>
#include <linux/sched/signal.h>
+#include <linux/sched/debug.h>
#include <asm/cacheflush.h>
#include <asm/irq.h>
diff --git a/arch/sh/kernel/dumpstack.c b/arch/sh/kernel/dumpstack.c
index 8dfe645bcc4b..d00cab2f50f9 100644
--- a/arch/sh/kernel/dumpstack.c
+++ b/arch/sh/kernel/dumpstack.c
@@ -11,6 +11,7 @@
#include <linux/kallsyms.h>
#include <linux/ftrace.h>
#include <linux/debug_locks.h>
+#include <linux/sched/debug.h>
#include <linux/kdebug.h>
#include <linux/export.h>
#include <linux/uaccess.h>
diff --git a/arch/sh/kernel/nmi_debug.c b/arch/sh/kernel/nmi_debug.c
index ff0abbd1e652..730d928f0d12 100644
--- a/arch/sh/kernel/nmi_debug.c
+++ b/arch/sh/kernel/nmi_debug.c
@@ -9,6 +9,7 @@
#include <linux/kdebug.h>
#include <linux/notifier.h>
#include <linux/sched.h>
+#include <linux/sched/debug.h>
#include <linux/hardirq.h>
enum nmi_action {
diff --git a/arch/sh/kernel/process_32.c b/arch/sh/kernel/process_32.c
index 51741850a715..5098274e0f23 100644
--- a/arch/sh/kernel/process_32.c
+++ b/arch/sh/kernel/process_32.c
@@ -15,6 +15,7 @@
*/
#include <linux/module.h>
#include <linux/mm.h>
+#include <linux/sched/debug.h>
#include <linux/slab.h>
#include <linux/elfcore.h>
#include <linux/kallsyms.h>
diff --git a/arch/sh/kernel/process_64.c b/arch/sh/kernel/process_64.c
index e0b271bffd6a..ced21a417d9d 100644
--- a/arch/sh/kernel/process_64.c
+++ b/arch/sh/kernel/process_64.c
@@ -25,6 +25,7 @@
#include <linux/init.h>
#include <linux/module.h>
#include <linux/io.h>
+#include <linux/sched/debug.h>
#include <asm/syscalls.h>
#include <linux/uaccess.h>
#include <asm/pgtable.h>
diff --git a/arch/sh/kernel/stacktrace.c b/arch/sh/kernel/stacktrace.c
index bf989e063a0c..7a73d2763e1b 100644
--- a/arch/sh/kernel/stacktrace.c
+++ b/arch/sh/kernel/stacktrace.c
@@ -10,6 +10,7 @@
* for more details.
*/
#include <linux/sched.h>
+#include <linux/sched/debug.h>
#include <linux/stacktrace.h>
#include <linux/thread_info.h>
#include <linux/module.h>
diff --git a/arch/sh/kernel/traps.c b/arch/sh/kernel/traps.c
index d82845c8e18a..d0d5703affaa 100644
--- a/arch/sh/kernel/traps.c
+++ b/arch/sh/kernel/traps.c
@@ -4,6 +4,7 @@
#include <linux/kdebug.h>
#include <linux/signal.h>
#include <linux/sched.h>
+#include <linux/sched/debug.h>
#include <linux/uaccess.h>
#include <linux/hardirq.h>
#include <linux/kernel.h>
diff --git a/arch/sh/kernel/traps_64.c b/arch/sh/kernel/traps_64.c
index 00835edb6e20..014fb08cf133 100644
--- a/arch/sh/kernel/traps_64.c
+++ b/arch/sh/kernel/traps_64.c
@@ -10,6 +10,7 @@
* for more details.
*/
#include <linux/sched.h>
+#include <linux/sched/debug.h>
#include <linux/kernel.h>
#include <linux/string.h>
#include <linux/errno.h>
diff --git a/arch/sparc/kernel/process_32.c b/arch/sparc/kernel/process_32.c
index 48ffc3e7d1dd..237a471c8ed5 100644
--- a/arch/sparc/kernel/process_32.c
+++ b/arch/sparc/kernel/process_32.c
@@ -14,6 +14,7 @@
#include <linux/errno.h>
#include <linux/module.h>
#include <linux/sched.h>
+#include <linux/sched/debug.h>
#include <linux/kernel.h>
#include <linux/mm.h>
#include <linux/stddef.h>
diff --git a/arch/sparc/kernel/process_64.c b/arch/sparc/kernel/process_64.c
index d249ca10b203..98f6ff6eaa55 100644
--- a/arch/sparc/kernel/process_64.c
+++ b/arch/sparc/kernel/process_64.c
@@ -14,6 +14,7 @@
#include <linux/errno.h>
#include <linux/export.h>
#include <linux/sched.h>
+#include <linux/sched/debug.h>
#include <linux/kernel.h>
#include <linux/mm.h>
#include <linux/fs.h>
diff --git a/arch/sparc/kernel/stacktrace.c b/arch/sparc/kernel/stacktrace.c
index e78386a0029f..be4c14cccc05 100644
--- a/arch/sparc/kernel/stacktrace.c
+++ b/arch/sparc/kernel/stacktrace.c
@@ -1,4 +1,5 @@
#include <linux/sched.h>
+#include <linux/sched/debug.h>
#include <linux/stacktrace.h>
#include <linux/thread_info.h>
#include <linux/ftrace.h>
diff --git a/arch/sparc/kernel/sun4m_irq.c b/arch/sparc/kernel/sun4m_irq.c
index da737c712fa8..aa84da0b2d30 100644
--- a/arch/sparc/kernel/sun4m_irq.c
+++ b/arch/sparc/kernel/sun4m_irq.c
@@ -10,6 +10,7 @@
*/
#include <linux/slab.h>
+#include <linux/sched/debug.h>
#include <asm/timer.h>
#include <asm/traps.h>
diff --git a/arch/sparc/kernel/sys_sparc_32.c b/arch/sparc/kernel/sys_sparc_32.c
index ff3573059936..7aecb239626d 100644
--- a/arch/sparc/kernel/sys_sparc_32.c
+++ b/arch/sparc/kernel/sys_sparc_32.c
@@ -9,6 +9,7 @@
#include <linux/types.h>
#include <linux/sched/signal.h>
#include <linux/sched/mm.h>
+#include <linux/sched/debug.h>
#include <linux/mm.h>
#include <linux/fs.h>
#include <linux/file.h>
diff --git a/arch/sparc/kernel/sys_sparc_64.c b/arch/sparc/kernel/sys_sparc_64.c
index c521ee277083..ef4520efc813 100644
--- a/arch/sparc/kernel/sys_sparc_64.c
+++ b/arch/sparc/kernel/sys_sparc_64.c
@@ -9,6 +9,7 @@
#include <linux/types.h>
#include <linux/sched/signal.h>
#include <linux/sched/mm.h>
+#include <linux/sched/debug.h>
#include <linux/fs.h>
#include <linux/file.h>
#include <linux/mm.h>
diff --git a/arch/sparc/kernel/traps_32.c b/arch/sparc/kernel/traps_32.c
index 4f21df7d4f13..304d2c9babb5 100644
--- a/arch/sparc/kernel/traps_32.c
+++ b/arch/sparc/kernel/traps_32.c
@@ -10,6 +10,7 @@
*/
#include <linux/sched.h> /* for jiffies */
+#include <linux/sched/debug.h>
#include <linux/kernel.h>
#include <linux/signal.h>
#include <linux/smp.h>
diff --git a/arch/sparc/kernel/traps_64.c b/arch/sparc/kernel/traps_64.c
index dfc97a47c9a0..94f386a92f38 100644
--- a/arch/sparc/kernel/traps_64.c
+++ b/arch/sparc/kernel/traps_64.c
@@ -10,6 +10,7 @@
#include <linux/extable.h>
#include <linux/sched.h>
+#include <linux/sched/debug.h>
#include <linux/linkage.h>
#include <linux/kernel.h>
#include <linux/signal.h>
diff --git a/arch/sparc/mm/fault_64.c b/arch/sparc/mm/fault_64.c
index 643c149a3151..b84c4dd14954 100644
--- a/arch/sparc/mm/fault_64.c
+++ b/arch/sparc/mm/fault_64.c
@@ -10,6 +10,7 @@
#include <linux/string.h>
#include <linux/types.h>
#include <linux/sched.h>
+#include <linux/sched/debug.h>
#include <linux/ptrace.h>
#include <linux/mman.h>
#include <linux/signal.h>
diff --git a/arch/tile/include/asm/stack.h b/arch/tile/include/asm/stack.h
index c3cb42615a9f..3573325e340b 100644
--- a/arch/tile/include/asm/stack.h
+++ b/arch/tile/include/asm/stack.h
@@ -17,6 +17,8 @@
#include <linux/types.h>
#include <linux/sched.h>
+#include <linux/sched/debug.h>
+
#include <asm/backtrace.h>
#include <asm/page.h>
#include <hv/hypervisor.h>
diff --git a/arch/tile/kernel/process.c b/arch/tile/kernel/process.c
index c84c54a1ac55..557b4c8435d0 100644
--- a/arch/tile/kernel/process.c
+++ b/arch/tile/kernel/process.c
@@ -13,6 +13,7 @@
*/
#include <linux/sched.h>
+#include <linux/sched/debug.h>
#include <linux/preempt.h>
#include <linux/module.h>
#include <linux/fs.h>
diff --git a/arch/tile/kernel/signal.c b/arch/tile/kernel/signal.c
index 87299a6cfec8..8cc92ae6eb27 100644
--- a/arch/tile/kernel/signal.c
+++ b/arch/tile/kernel/signal.c
@@ -14,6 +14,7 @@
*/
#include <linux/sched.h>
+#include <linux/sched/debug.h>
#include <linux/mm.h>
#include <linux/smp.h>
#include <linux/kernel.h>
diff --git a/arch/tile/kernel/stack.c b/arch/tile/kernel/stack.c
index 22bbbd3ff4a3..a1c0787fe9d8 100644
--- a/arch/tile/kernel/stack.c
+++ b/arch/tile/kernel/stack.c
@@ -13,6 +13,7 @@
*/
#include <linux/sched.h>
+#include <linux/sched/debug.h>
#include <linux/kernel.h>
#include <linux/kprobes.h>
#include <linux/module.h>
diff --git a/arch/tile/kernel/traps.c b/arch/tile/kernel/traps.c
index 39f427bb0de2..54804866f238 100644
--- a/arch/tile/kernel/traps.c
+++ b/arch/tile/kernel/traps.c
@@ -13,6 +13,7 @@
*/
#include <linux/sched.h>
+#include <linux/sched/debug.h>
#include <linux/kernel.h>
#include <linux/kprobes.h>
#include <linux/kdebug.h>
diff --git a/arch/tile/kernel/unaligned.c b/arch/tile/kernel/unaligned.c
index f229e979584e..142acae78316 100644
--- a/arch/tile/kernel/unaligned.c
+++ b/arch/tile/kernel/unaligned.c
@@ -17,6 +17,7 @@
#include <linux/smp.h>
#include <linux/ptrace.h>
#include <linux/slab.h>
+#include <linux/sched/debug.h>
#include <linux/thread_info.h>
#include <linux/uaccess.h>
#include <linux/mman.h>
diff --git a/arch/tile/mm/fault.c b/arch/tile/mm/fault.c
index 709f8e9ba3e9..005c91c2adca 100644
--- a/arch/tile/mm/fault.c
+++ b/arch/tile/mm/fault.c
@@ -16,6 +16,7 @@
#include <linux/signal.h>
#include <linux/sched.h>
+#include <linux/sched/debug.h>
#include <linux/kernel.h>
#include <linux/errno.h>
#include <linux/string.h>
diff --git a/arch/um/drivers/mconsole_kern.c b/arch/um/drivers/mconsole_kern.c
index 8a4c72af3bc0..af326fb6510d 100644
--- a/arch/um/drivers/mconsole_kern.c
+++ b/arch/um/drivers/mconsole_kern.c
@@ -13,6 +13,7 @@
#include <linux/module.h>
#include <linux/notifier.h>
#include <linux/reboot.h>
+#include <linux/sched/debug.h>
#include <linux/proc_fs.h>
#include <linux/slab.h>
#include <linux/syscalls.h>
diff --git a/arch/um/kernel/process.c b/arch/um/kernel/process.c
index 078630d6448c..c6c45ea4021f 100644
--- a/arch/um/kernel/process.c
+++ b/arch/um/kernel/process.c
@@ -17,6 +17,7 @@
#include <linux/random.h>
#include <linux/slab.h>
#include <linux/sched.h>
+#include <linux/sched/debug.h>
#include <linux/seq_file.h>
#include <linux/tick.h>
#include <linux/threads.h>
diff --git a/arch/um/kernel/sysrq.c b/arch/um/kernel/sysrq.c
index aa1b56f5ac68..34ae555c3e70 100644
--- a/arch/um/kernel/sysrq.c
+++ b/arch/um/kernel/sysrq.c
@@ -11,6 +11,8 @@
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/sched.h>
+#include <linux/sched/debug.h>
+
#include <asm/sysrq.h>
#include <asm/stacktrace.h>
#include <os.h>
diff --git a/arch/um/kernel/trap.c b/arch/um/kernel/trap.c
index 9711ae4aaa6a..59158871b9fc 100644
--- a/arch/um/kernel/trap.c
+++ b/arch/um/kernel/trap.c
@@ -8,6 +8,7 @@
#include <linux/hardirq.h>
#include <linux/module.h>
#include <linux/uaccess.h>
+#include <linux/sched/debug.h>
#include <asm/current.h>
#include <asm/pgtable.h>
#include <asm/tlbflush.h>
diff --git a/arch/unicore32/kernel/process.c b/arch/unicore32/kernel/process.c
index d7c6b676b3a5..c1a0eec88f1f 100644
--- a/arch/unicore32/kernel/process.c
+++ b/arch/unicore32/kernel/process.c
@@ -13,6 +13,7 @@
#include <linux/module.h>
#include <linux/sched.h>
+#include <linux/sched/debug.h>
#include <linux/kernel.h>
#include <linux/mm.h>
#include <linux/stddef.h>
diff --git a/arch/unicore32/kernel/stacktrace.c b/arch/unicore32/kernel/stacktrace.c
index b34030bdabe3..9976e767d51c 100644
--- a/arch/unicore32/kernel/stacktrace.c
+++ b/arch/unicore32/kernel/stacktrace.c
@@ -11,6 +11,7 @@
*/
#include <linux/module.h>
#include <linux/sched.h>
+#include <linux/sched/debug.h>
#include <linux/stacktrace.h>
#include <asm/stacktrace.h>
diff --git a/arch/unicore32/kernel/traps.c b/arch/unicore32/kernel/traps.c
index 7f5e06f9a202..506e1a2127c6 100644
--- a/arch/unicore32/kernel/traps.c
+++ b/arch/unicore32/kernel/traps.c
@@ -15,6 +15,7 @@
#include <linux/module.h>
#include <linux/signal.h>
#include <linux/sched/signal.h>
+#include <linux/sched/debug.h>
#include <linux/spinlock.h>
#include <linux/personality.h>
#include <linux/kallsyms.h>
diff --git a/arch/unicore32/mm/alignment.c b/arch/unicore32/mm/alignment.c
index 24e836023e6c..3a7f6faa8794 100644
--- a/arch/unicore32/mm/alignment.c
+++ b/arch/unicore32/mm/alignment.c
@@ -15,6 +15,7 @@
*/
#include <linux/compiler.h>
#include <linux/kernel.h>
+#include <linux/sched/debug.h>
#include <linux/errno.h>
#include <linux/string.h>
#include <linux/init.h>
diff --git a/arch/x86/kernel/amd_gart_64.c b/arch/x86/kernel/amd_gart_64.c
index 63ff468a7986..d7fa4964df5e 100644
--- a/arch/x86/kernel/amd_gart_64.c
+++ b/arch/x86/kernel/amd_gart_64.c
@@ -17,6 +17,7 @@
#include <linux/init.h>
#include <linux/mm.h>
#include <linux/sched.h>
+#include <linux/sched/debug.h>
#include <linux/string.h>
#include <linux/spinlock.h>
#include <linux/pci.h>
diff --git a/arch/x86/kernel/doublefault.c b/arch/x86/kernel/doublefault.c
index b2f7207ba86c..f9c324e08d85 100644
--- a/arch/x86/kernel/doublefault.c
+++ b/arch/x86/kernel/doublefault.c
@@ -1,5 +1,6 @@
#include <linux/mm.h>
#include <linux/sched.h>
+#include <linux/sched/debug.h>
#include <linux/init_task.h>
#include <linux/fs.h>
diff --git a/arch/x86/kernel/dumpstack.c b/arch/x86/kernel/dumpstack.c
index 0cfd01d2754c..7b9e7e68f316 100644
--- a/arch/x86/kernel/dumpstack.c
+++ b/arch/x86/kernel/dumpstack.c
@@ -10,6 +10,7 @@
#include <linux/kdebug.h>
#include <linux/module.h>
#include <linux/ptrace.h>
+#include <linux/sched/debug.h>
#include <linux/ftrace.h>
#include <linux/kexec.h>
#include <linux/bug.h>
diff --git a/arch/x86/kernel/dumpstack_32.c b/arch/x86/kernel/dumpstack_32.c
index bb3b5b9a6899..b0b3a3df7c20 100644
--- a/arch/x86/kernel/dumpstack_32.c
+++ b/arch/x86/kernel/dumpstack_32.c
@@ -2,6 +2,7 @@
* Copyright (C) 1991, 1992 Linus Torvalds
* Copyright (C) 2000, 2001, 2002 Andi Kleen, SuSE Labs
*/
+#include <linux/sched/debug.h>
#include <linux/kallsyms.h>
#include <linux/kprobes.h>
#include <linux/uaccess.h>
diff --git a/arch/x86/kernel/dumpstack_64.c b/arch/x86/kernel/dumpstack_64.c
index fac189efcc34..a8b117e93b46 100644
--- a/arch/x86/kernel/dumpstack_64.c
+++ b/arch/x86/kernel/dumpstack_64.c
@@ -2,6 +2,7 @@
* Copyright (C) 1991, 1992 Linus Torvalds
* Copyright (C) 2000, 2001, 2002 Andi Kleen, SuSE Labs
*/
+#include <linux/sched/debug.h>
#include <linux/kallsyms.h>
#include <linux/kprobes.h>
#include <linux/uaccess.h>
diff --git a/arch/x86/kernel/kprobes/core.c b/arch/x86/kernel/kprobes/core.c
index eb3509338ae0..92b0ee30f544 100644
--- a/arch/x86/kernel/kprobes/core.c
+++ b/arch/x86/kernel/kprobes/core.c
@@ -45,6 +45,7 @@
#include <linux/slab.h>
#include <linux/hardirq.h>
#include <linux/preempt.h>
+#include <linux/sched/debug.h>
#include <linux/extable.h>
#include <linux/kdebug.h>
#include <linux/kallsyms.h>
diff --git a/arch/x86/kernel/nmi.c b/arch/x86/kernel/nmi.c
index d17b1a940add..f088ea4c66e7 100644
--- a/arch/x86/kernel/nmi.c
+++ b/arch/x86/kernel/nmi.c
@@ -13,6 +13,7 @@
#include <linux/spinlock.h>
#include <linux/kprobes.h>
#include <linux/kdebug.h>
+#include <linux/sched/debug.h>
#include <linux/nmi.h>
#include <linux/debugfs.h>
#include <linux/delay.h>
diff --git a/arch/x86/kernel/process.c b/arch/x86/kernel/process.c
index e9176466c587..0430dd4e33d9 100644
--- a/arch/x86/kernel/process.c
+++ b/arch/x86/kernel/process.c
@@ -8,6 +8,7 @@
#include <linux/slab.h>
#include <linux/sched.h>
#include <linux/sched/idle.h>
+#include <linux/sched/debug.h>
#include <linux/init.h>
#include <linux/export.h>
#include <linux/pm.h>
diff --git a/arch/x86/kernel/stacktrace.c b/arch/x86/kernel/stacktrace.c
index 0653788026e2..330cae0025d0 100644
--- a/arch/x86/kernel/stacktrace.c
+++ b/arch/x86/kernel/stacktrace.c
@@ -4,6 +4,7 @@
* Copyright (C) 2006-2009 Red Hat, Inc., Ingo Molnar <mingo@redhat.com>
*/
#include <linux/sched.h>
+#include <linux/sched/debug.h>
#include <linux/stacktrace.h>
#include <linux/export.h>
#include <linux/uaccess.h>
diff --git a/arch/x86/mm/extable.c b/arch/x86/mm/extable.c
index 61a7e9ea9aa1..35ea061010a1 100644
--- a/arch/x86/mm/extable.c
+++ b/arch/x86/mm/extable.c
@@ -1,5 +1,7 @@
#include <linux/extable.h>
#include <linux/uaccess.h>
+#include <linux/sched/debug.h>
+
#include <asm/traps.h>
#include <asm/kdebug.h>
diff --git a/arch/x86/platform/uv/uv_nmi.c b/arch/x86/platform/uv/uv_nmi.c
index 8410e7d0a5b5..0ab438611ab6 100644
--- a/arch/x86/platform/uv/uv_nmi.c
+++ b/arch/x86/platform/uv/uv_nmi.c
@@ -27,6 +27,7 @@
#include <linux/moduleparam.h>
#include <linux/nmi.h>
#include <linux/sched.h>
+#include <linux/sched/debug.h>
#include <linux/slab.h>
#include <linux/clocksource.h>
diff --git a/arch/x86/um/sysrq_32.c b/arch/x86/um/sysrq_32.c
index 16ee0e450e3e..f2383484840d 100644
--- a/arch/x86/um/sysrq_32.c
+++ b/arch/x86/um/sysrq_32.c
@@ -6,6 +6,7 @@
#include <linux/kernel.h>
#include <linux/smp.h>
#include <linux/sched.h>
+#include <linux/sched/debug.h>
#include <linux/kallsyms.h>
#include <asm/ptrace.h>
#include <asm/sysrq.h>
diff --git a/arch/x86/um/sysrq_64.c b/arch/x86/um/sysrq_64.c
index 38b4e4abd0f8..903ad91b624f 100644
--- a/arch/x86/um/sysrq_64.c
+++ b/arch/x86/um/sysrq_64.c
@@ -7,6 +7,7 @@
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/sched.h>
+#include <linux/sched/debug.h>
#include <linux/utsname.h>
#include <asm/current.h>
#include <asm/ptrace.h>
diff --git a/arch/xtensa/kernel/process.c b/arch/xtensa/kernel/process.c
index 826d25104846..afaa3588d869 100644
--- a/arch/xtensa/kernel/process.c
+++ b/arch/xtensa/kernel/process.c
@@ -17,6 +17,7 @@
#include <linux/errno.h>
#include <linux/sched.h>
+#include <linux/sched/debug.h>
#include <linux/kernel.h>
#include <linux/mm.h>
#include <linux/smp.h>
diff --git a/arch/xtensa/kernel/traps.c b/arch/xtensa/kernel/traps.c
index 84abd66e680d..d8bb2e62393e 100644
--- a/arch/xtensa/kernel/traps.c
+++ b/arch/xtensa/kernel/traps.c
@@ -25,6 +25,7 @@
#include <linux/kernel.h>
#include <linux/sched/signal.h>
+#include <linux/sched/debug.h>
#include <linux/init.h>
#include <linux/module.h>
#include <linux/stringify.h>
diff --git a/drivers/base/power/main.c b/drivers/base/power/main.c
index 249e0304597f..9faee1c893e5 100644
--- a/drivers/base/power/main.c
+++ b/drivers/base/power/main.c
@@ -27,6 +27,7 @@
#include <linux/pm_wakeirq.h>
#include <linux/interrupt.h>
#include <linux/sched.h>
+#include <linux/sched/debug.h>
#include <linux/async.h>
#include <linux/suspend.h>
#include <trace/events/power.h>
diff --git a/drivers/tty/sysrq.c b/drivers/tty/sysrq.c
index 41368ffab6ae..7f90f22d6272 100644
--- a/drivers/tty/sysrq.c
+++ b/drivers/tty/sysrq.c
@@ -16,6 +16,8 @@
#include <linux/sched/signal.h>
#include <linux/sched/rt.h>
+#include <linux/sched/debug.h>
+#include <linux/sched/debug.h>
#include <linux/interrupt.h>
#include <linux/mm.h>
#include <linux/fs.h>
diff --git a/drivers/tty/tty_ldsem.c b/drivers/tty/tty_ldsem.c
index 9229de43e19d..4f6b1b10b537 100644
--- a/drivers/tty/tty_ldsem.c
+++ b/drivers/tty/tty_ldsem.c
@@ -32,6 +32,7 @@
#include <linux/atomic.h>
#include <linux/tty.h>
#include <linux/sched.h>
+#include <linux/sched/debug.h>
#ifdef CONFIG_DEBUG_LOCK_ALLOC
diff --git a/drivers/tty/vt/keyboard.c b/drivers/tty/vt/keyboard.c
index 71391e672588..da817f7cd26a 100644
--- a/drivers/tty/vt/keyboard.c
+++ b/drivers/tty/vt/keyboard.c
@@ -27,6 +27,8 @@
#include <linux/consolemap.h>
#include <linux/module.h>
#include <linux/sched/signal.h>
+#include <linux/sched/debug.h>
+#include <linux/sched/debug.h>
#include <linux/tty.h>
#include <linux/tty_flip.h>
#include <linux/mm.h>
diff --git a/fs/proc/base.c b/fs/proc/base.c
index ed8981d36674..cc39b88610a9 100644
--- a/fs/proc/base.c
+++ b/fs/proc/base.c
@@ -88,6 +88,7 @@
#include <linux/sched/autogroup.h>
#include <linux/sched/mm.h>
#include <linux/sched/coredump.h>
+#include <linux/sched/debug.h>
#include <linux/flex_array.h>
#include <linux/posix-timers.h>
#ifdef CONFIG_HARDWALL
diff --git a/include/linux/sched.h b/include/linux/sched.h
index 947d4033b019..5cc312bb658e 100644
--- a/include/linux/sched.h
+++ b/include/linux/sched.h
@@ -38,15 +38,9 @@ struct nameidata;
struct signal_struct;
struct sighand_struct;
-extern void dump_cpu_task(int cpu);
-
struct seq_file;
struct cfs_rq;
struct task_group;
-#ifdef CONFIG_SCHED_DEBUG
-extern void proc_sched_show_task(struct task_struct *p, struct seq_file *m);
-extern void proc_sched_set_task(struct task_struct *p);
-#endif
/*
* Task state bitmask. NOTE! These bits are also
@@ -191,25 +185,6 @@ extern cpumask_var_t cpu_isolated_map;
extern int runqueue_is_locked(int cpu);
-/*
- * Only dump TASK_* tasks. (0 for all tasks)
- */
-extern void show_state_filter(unsigned long state_filter);
-
-static inline void show_state(void)
-{
- show_state_filter(0);
-}
-
-extern void show_regs(struct pt_regs *);
-
-/*
- * TASK is a pointer to the task whose backtrace we want to see (or NULL for current
- * task), SP is the stack pointer of the first frame that should be shown in the back
- * trace (or NULL if the entire call-chain of the task should be shown).
- */
-extern void show_stack(struct task_struct *task, unsigned long *sp);
-
extern void cpu_init (void);
extern void trap_init(void);
extern void update_process_times(int user);
@@ -224,17 +199,6 @@ extern int sched_cpu_dying(unsigned int cpu);
# define sched_cpu_dying NULL
#endif
-extern void sched_show_task(struct task_struct *p);
-
-/* Attach to any functions which should be ignored in wchan output. */
-#define __sched __attribute__((__section__(".sched.text")))
-
-/* Linker adds these: start and end of __sched functions */
-extern char __sched_text_start[], __sched_text_end[];
-
-/* Is this address in the __sched functions? */
-extern int in_sched_functions(unsigned long addr);
-
#define MAX_SCHEDULE_TIMEOUT LONG_MAX
extern signed long schedule_timeout(signed long timeout);
extern signed long schedule_timeout_interruptible(signed long timeout);
diff --git a/include/linux/sched/debug.h b/include/linux/sched/debug.h
new file mode 100644
index 000000000000..e0eaee54c5a4
--- /dev/null
+++ b/include/linux/sched/debug.h
@@ -0,0 +1,50 @@
+#ifndef _LINUX_SCHED_DEBUG_H
+#define _LINUX_SCHED_DEBUG_H
+
+/*
+ * Various scheduler/task debugging interfaces:
+ */
+
+struct task_struct;
+
+extern void dump_cpu_task(int cpu);
+
+/*
+ * Only dump TASK_* tasks. (0 for all tasks)
+ */
+extern void show_state_filter(unsigned long state_filter);
+
+static inline void show_state(void)
+{
+ show_state_filter(0);
+}
+
+struct pt_regs;
+
+extern void show_regs(struct pt_regs *);
+
+/*
+ * TASK is a pointer to the task whose backtrace we want to see (or NULL for current
+ * task), SP is the stack pointer of the first frame that should be shown in the back
+ * trace (or NULL if the entire call-chain of the task should be shown).
+ */
+extern void show_stack(struct task_struct *task, unsigned long *sp);
+
+extern void sched_show_task(struct task_struct *p);
+
+#ifdef CONFIG_SCHED_DEBUG
+struct seq_file;
+extern void proc_sched_show_task(struct task_struct *p, struct seq_file *m);
+extern void proc_sched_set_task(struct task_struct *p);
+#endif
+
+/* Attach to any functions which should be ignored in wchan output. */
+#define __sched __attribute__((__section__(".sched.text")))
+
+/* Linker adds these: start and end of __sched functions */
+extern char __sched_text_start[], __sched_text_end[];
+
+/* Is this address in the __sched functions? */
+extern int in_sched_functions(unsigned long addr);
+
+#endif /* _LINUX_SCHED_DEBUG_H */
diff --git a/kernel/debug/kdb/kdb_bt.c b/kernel/debug/kdb/kdb_bt.c
index 9b976a42376d..6ad4a9fcbd6f 100644
--- a/kernel/debug/kdb/kdb_bt.c
+++ b/kernel/debug/kdb/kdb_bt.c
@@ -13,6 +13,7 @@
#include <linux/string.h>
#include <linux/kernel.h>
#include <linux/sched/signal.h>
+#include <linux/sched/debug.h>
#include <linux/kdb.h>
#include <linux/nmi.h>
#include "kdb_private.h"
diff --git a/kernel/debug/kdb/kdb_main.c b/kernel/debug/kdb/kdb_main.c
index bf48a492b4be..c8146d53ca67 100644
--- a/kernel/debug/kdb/kdb_main.c
+++ b/kernel/debug/kdb/kdb_main.c
@@ -20,6 +20,7 @@
#include <linux/sched.h>
#include <linux/sched/loadavg.h>
#include <linux/sched/stat.h>
+#include <linux/sched/debug.h>
#include <linux/sysrq.h>
#include <linux/smp.h>
#include <linux/utsname.h>
diff --git a/kernel/hung_task.c b/kernel/hung_task.c
index 129247e56902..f0f8e2a8496f 100644
--- a/kernel/hung_task.c
+++ b/kernel/hung_task.c
@@ -17,6 +17,7 @@
#include <linux/sysctl.h>
#include <linux/utsname.h>
#include <linux/sched/signal.h>
+#include <linux/sched/debug.h>
#include <trace/events/sched.h>
diff --git a/kernel/latencytop.c b/kernel/latencytop.c
index b5c30d9f46c5..545839b838d6 100644
--- a/kernel/latencytop.c
+++ b/kernel/latencytop.c
@@ -55,6 +55,7 @@
#include <linux/latencytop.h>
#include <linux/export.h>
#include <linux/sched.h>
+#include <linux/sched/debug.h>
#include <linux/list.h>
#include <linux/stacktrace.h>
diff --git a/kernel/locking/mutex.c b/kernel/locking/mutex.c
index 82ff5726bc1b..198527a62149 100644
--- a/kernel/locking/mutex.c
+++ b/kernel/locking/mutex.c
@@ -22,6 +22,7 @@
#include <linux/sched/signal.h>
#include <linux/sched/rt.h>
#include <linux/sched/wake_q.h>
+#include <linux/sched/debug.h>
#include <linux/export.h>
#include <linux/spinlock.h>
#include <linux/interrupt.h>
diff --git a/kernel/locking/rtmutex-debug.c b/kernel/locking/rtmutex-debug.c
index 62b6cee8ea7f..97ee9df32e0f 100644
--- a/kernel/locking/rtmutex-debug.c
+++ b/kernel/locking/rtmutex-debug.c
@@ -18,6 +18,7 @@
*/
#include <linux/sched.h>
#include <linux/sched/rt.h>
+#include <linux/sched/debug.h>
#include <linux/delay.h>
#include <linux/export.h>
#include <linux/spinlock.h>
diff --git a/kernel/locking/rtmutex.c b/kernel/locking/rtmutex.c
index 1c8c8707853a..6edc32ecd9c5 100644
--- a/kernel/locking/rtmutex.c
+++ b/kernel/locking/rtmutex.c
@@ -16,6 +16,7 @@
#include <linux/sched/rt.h>
#include <linux/sched/deadline.h>
#include <linux/sched/wake_q.h>
+#include <linux/sched/debug.h>
#include <linux/timer.h>
#include "rtmutex_common.h"
diff --git a/kernel/locking/rwsem-spinlock.c b/kernel/locking/rwsem-spinlock.c
index 91e7bc8e9d5a..7bc24d477805 100644
--- a/kernel/locking/rwsem-spinlock.c
+++ b/kernel/locking/rwsem-spinlock.c
@@ -7,6 +7,7 @@
*/
#include <linux/rwsem.h>
#include <linux/sched/signal.h>
+#include <linux/sched/debug.h>
#include <linux/export.h>
enum rwsem_waiter_type {
diff --git a/kernel/locking/rwsem-xadd.c b/kernel/locking/rwsem-xadd.c
index 9bd6e768164e..34e727f18e49 100644
--- a/kernel/locking/rwsem-xadd.c
+++ b/kernel/locking/rwsem-xadd.c
@@ -15,6 +15,7 @@
#include <linux/sched/signal.h>
#include <linux/sched/rt.h>
#include <linux/sched/wake_q.h>
+#include <linux/sched/debug.h>
#include <linux/osq_lock.h>
#include "rwsem.h"
diff --git a/kernel/locking/rwsem.c b/kernel/locking/rwsem.c
index 45ba475d4be3..90a74ccd85a4 100644
--- a/kernel/locking/rwsem.c
+++ b/kernel/locking/rwsem.c
@@ -7,6 +7,7 @@
#include <linux/types.h>
#include <linux/kernel.h>
#include <linux/sched.h>
+#include <linux/sched/debug.h>
#include <linux/export.h>
#include <linux/rwsem.h>
#include <linux/atomic.h>
diff --git a/kernel/locking/semaphore.c b/kernel/locking/semaphore.c
index 9512e37637dc..561acdd39960 100644
--- a/kernel/locking/semaphore.c
+++ b/kernel/locking/semaphore.c
@@ -29,6 +29,7 @@
#include <linux/kernel.h>
#include <linux/export.h>
#include <linux/sched.h>
+#include <linux/sched/debug.h>
#include <linux/semaphore.h>
#include <linux/spinlock.h>
#include <linux/ftrace.h>
diff --git a/kernel/panic.c b/kernel/panic.c
index 08aa88dde7de..327881aa4c27 100644
--- a/kernel/panic.c
+++ b/kernel/panic.c
@@ -9,6 +9,7 @@
* to indicate a major problem.
*/
#include <linux/debug_locks.h>
+#include <linux/sched/debug.h>
#include <linux/interrupt.h>
#include <linux/kmsg_dump.h>
#include <linux/kallsyms.h>
diff --git a/kernel/power/process.c b/kernel/power/process.c
index 2fba066e125f..85e2915d8961 100644
--- a/kernel/power/process.c
+++ b/kernel/power/process.c
@@ -12,6 +12,7 @@
#include <linux/oom.h>
#include <linux/suspend.h>
#include <linux/module.h>
+#include <linux/sched/debug.h>
#include <linux/syscalls.h>
#include <linux/freezer.h>
#include <linux/delay.h>
diff --git a/kernel/printk/printk.c b/kernel/printk/printk.c
index 973b1d15d2ba..8681d7455c48 100644
--- a/kernel/printk/printk.c
+++ b/kernel/printk/printk.c
@@ -46,6 +46,7 @@
#include <linux/ctype.h>
#include <linux/uio.h>
#include <linux/sched/clock.h>
+#include <linux/sched/debug.h>
#include <linux/uaccess.h>
#include <asm/sections.h>
diff --git a/kernel/rcu/tree.c b/kernel/rcu/tree.c
index 4506ecfcb30a..c37db7b626c8 100644
--- a/kernel/rcu/tree.c
+++ b/kernel/rcu/tree.c
@@ -35,6 +35,7 @@
#include <linux/rcupdate.h>
#include <linux/interrupt.h>
#include <linux/sched.h>
+#include <linux/sched/debug.h>
#include <linux/nmi.h>
#include <linux/atomic.h>
#include <linux/bitops.h>
diff --git a/kernel/rcu/tree_plugin.h b/kernel/rcu/tree_plugin.h
index 608189df317a..e95a441931a7 100644
--- a/kernel/rcu/tree_plugin.h
+++ b/kernel/rcu/tree_plugin.h
@@ -27,6 +27,7 @@
#include <linux/delay.h>
#include <linux/gfp.h>
#include <linux/oom.h>
+#include <linux/sched/debug.h>
#include <linux/smpboot.h>
#include <uapi/linux/sched/types.h>
#include "../time/tick-internal.h"
diff --git a/kernel/rcu/update.c b/kernel/rcu/update.c
index 80fe269a90b4..2fe8e2582309 100644
--- a/kernel/rcu/update.c
+++ b/kernel/rcu/update.c
@@ -37,6 +37,7 @@
#include <linux/smp.h>
#include <linux/interrupt.h>
#include <linux/sched/signal.h>
+#include <linux/sched/debug.h>
#include <linux/atomic.h>
#include <linux/bitops.h>
#include <linux/percpu.h>
diff --git a/kernel/sched/completion.c b/kernel/sched/completion.c
index b294a8ee2842..53f9558fa925 100644
--- a/kernel/sched/completion.c
+++ b/kernel/sched/completion.c
@@ -12,6 +12,7 @@
*/
#include <linux/sched/signal.h>
+#include <linux/sched/debug.h>
#include <linux/completion.h>
/**
diff --git a/kernel/sched/sched.h b/kernel/sched/sched.h
index 5979f47c422c..e1e819f731b2 100644
--- a/kernel/sched/sched.h
+++ b/kernel/sched/sched.h
@@ -11,6 +11,7 @@
#include <linux/sched/cpufreq.h>
#include <linux/sched/stat.h>
#include <linux/sched/nohz.h>
+#include <linux/sched/debug.h>
#include <linux/u64_stats_sync.h>
#include <linux/sched/deadline.h>
#include <linux/kernel_stat.h>
@@ -1830,7 +1831,6 @@ extern void print_rt_stats(struct seq_file *m, int cpu);
extern void print_dl_stats(struct seq_file *m, int cpu);
extern void
print_cfs_rq(struct seq_file *m, int cpu, struct cfs_rq *cfs_rq);
-
#ifdef CONFIG_NUMA_BALANCING
extern void
show_numa_stats(struct task_struct *p, struct seq_file *m);
diff --git a/kernel/sched/wait.c b/kernel/sched/wait.c
index 1fedfcf6fc9b..4d2ea6f25568 100644
--- a/kernel/sched/wait.c
+++ b/kernel/sched/wait.c
@@ -6,6 +6,7 @@
#include <linux/init.h>
#include <linux/export.h>
#include <linux/sched/signal.h>
+#include <linux/sched/debug.h>
#include <linux/mm.h>
#include <linux/wait.h>
#include <linux/hash.h>
diff --git a/kernel/signal.c b/kernel/signal.c
index 26d7975cac66..cdeb612357fd 100644
--- a/kernel/signal.c
+++ b/kernel/signal.c
@@ -15,6 +15,7 @@
#include <linux/init.h>
#include <linux/sched.h>
#include <linux/sched/user.h>
+#include <linux/sched/debug.h>
#include <linux/fs.h>
#include <linux/tty.h>
#include <linux/binfmts.h>
diff --git a/kernel/time/alarmtimer.c b/kernel/time/alarmtimer.c
index 04939053c823..ce3a31e8eb36 100644
--- a/kernel/time/alarmtimer.c
+++ b/kernel/time/alarmtimer.c
@@ -20,6 +20,7 @@
#include <linux/timerqueue.h>
#include <linux/rtc.h>
#include <linux/sched/signal.h>
+#include <linux/sched/debug.h>
#include <linux/alarmtimer.h>
#include <linux/mutex.h>
#include <linux/platform_device.h>
diff --git a/kernel/time/hrtimer.c b/kernel/time/hrtimer.c
index 301323221d2c..7e4312156e6f 100644
--- a/kernel/time/hrtimer.c
+++ b/kernel/time/hrtimer.c
@@ -48,6 +48,7 @@
#include <linux/sched/rt.h>
#include <linux/sched/deadline.h>
#include <linux/sched/nohz.h>
+#include <linux/sched/debug.h>
#include <linux/timer.h>
#include <linux/freezer.h>
diff --git a/kernel/time/timer.c b/kernel/time/timer.c
index bf69e770e303..6bb8d3294b44 100644
--- a/kernel/time/timer.c
+++ b/kernel/time/timer.c
@@ -41,6 +41,7 @@
#include <linux/sched/signal.h>
#include <linux/sched/sysctl.h>
#include <linux/sched/nohz.h>
+#include <linux/sched/debug.h>
#include <linux/slab.h>
#include <linux/compat.h>
diff --git a/kernel/watchdog.c b/kernel/watchdog.c
index 52718f4512e9..03e0b69bb5bf 100644
--- a/kernel/watchdog.c
+++ b/kernel/watchdog.c
@@ -23,6 +23,7 @@
#include <linux/tick.h>
#include <linux/workqueue.h>
#include <linux/sched/clock.h>
+#include <linux/sched/debug.h>
#include <asm/irq_regs.h>
#include <linux/kvm_para.h>
diff --git a/kernel/watchdog_hld.c b/kernel/watchdog_hld.c
index 12b8dd640786..09770bceb320 100644
--- a/kernel/watchdog_hld.c
+++ b/kernel/watchdog_hld.c
@@ -13,6 +13,8 @@
#include <linux/nmi.h>
#include <linux/module.h>
+#include <linux/sched/debug.h>
+
#include <asm/irq_regs.h>
#include <linux/perf_event.h>
diff --git a/lib/dump_stack.c b/lib/dump_stack.c
index c30d07e99dba..625375e7f11f 100644
--- a/lib/dump_stack.c
+++ b/lib/dump_stack.c
@@ -6,6 +6,7 @@
#include <linux/kernel.h>
#include <linux/export.h>
#include <linux/sched.h>
+#include <linux/sched/debug.h>
#include <linux/smp.h>
#include <linux/atomic.h>
diff --git a/lib/nmi_backtrace.c b/lib/nmi_backtrace.c
index 75554754eadf..27c1a140d98b 100644
--- a/lib/nmi_backtrace.c
+++ b/lib/nmi_backtrace.c
@@ -17,6 +17,7 @@
#include <linux/kprobes.h>
#include <linux/nmi.h>
#include <linux/cpu.h>
+#include <linux/sched/debug.h>
#ifdef arch_trigger_cpumask_backtrace
/* For reliability, we're prepared to waste bits here. */
--
2.7.4
^ permalink raw reply related [flat|nested] 119+ messages in thread
* [PATCH 48/89] sched/headers, time/timekeeping: Move the xtime_update() prototype from <linux/sched.h> to <linux/time.h>
2017-02-06 13:28 [PATCH 00/89] Major reorganization of <linux/sched.h> Ingo Molnar
` (46 preceding siblings ...)
2017-02-06 13:28 ` [PATCH 47/89] sched/headers: Move debugging functions from <linux/sched.h> to <linux/sched/debug.h> Ingo Molnar
@ 2017-02-06 13:28 ` Ingo Molnar
2017-02-06 13:28 ` [PATCH 49/89] sched/headers: Move <asm/current.h> include from the middle of <linux/sched.h> to the header portion Ingo Molnar
` (42 subsequent siblings)
90 siblings, 0 replies; 119+ messages in thread
From: Ingo Molnar @ 2017-02-06 13:28 UTC (permalink / raw)
To: linux-kernel
Cc: Andrew Morton, Linus Torvalds, Mike Galbraith, Oleg Nesterov,
Peter Zijlstra, Thomas Gleixner
This was in <linux/sched.h> only for hysterical raisins.
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
include/linux/sched.h | 2 --
include/linux/time.h | 2 ++
2 files changed, 2 insertions(+), 2 deletions(-)
diff --git a/include/linux/sched.h b/include/linux/sched.h
index 5cc312bb658e..f2c86b69c3e8 100644
--- a/include/linux/sched.h
+++ b/include/linux/sched.h
@@ -1576,8 +1576,6 @@ extern struct task_struct *find_task_by_pid_ns(pid_t nr,
#include <asm/current.h>
-extern void xtime_update(unsigned long ticks);
-
extern int wake_up_state(struct task_struct *tsk, unsigned int state);
extern int wake_up_process(struct task_struct *tsk);
extern void wake_up_new_task(struct task_struct *tsk);
diff --git a/include/linux/time.h b/include/linux/time.h
index 23f0f5ce3090..4f4ab65b6e61 100644
--- a/include/linux/time.h
+++ b/include/linux/time.h
@@ -167,6 +167,8 @@ static inline bool timespec_inject_offset_valid(const struct timespec *ts)
extern u32 (*arch_gettimeoffset)(void);
#endif
+extern void xtime_update(unsigned long ticks);
+
struct itimerval;
extern int do_setitimer(int which, struct itimerval *value,
struct itimerval *ovalue);
--
2.7.4
^ permalink raw reply related [flat|nested] 119+ messages in thread
* [PATCH 49/89] sched/headers: Move <asm/current.h> include from the middle of <linux/sched.h> to the header portion
2017-02-06 13:28 [PATCH 00/89] Major reorganization of <linux/sched.h> Ingo Molnar
` (47 preceding siblings ...)
2017-02-06 13:28 ` [PATCH 48/89] sched/headers, time/timekeeping: Move the xtime_update() prototype from <linux/sched.h> to <linux/time.h> Ingo Molnar
@ 2017-02-06 13:28 ` Ingo Molnar
2017-02-06 13:28 ` [PATCH 50/89] sched/core: Convert ___assert_task_state() link time assert to BUILD_BUG_ON() Ingo Molnar
` (41 subsequent siblings)
90 siblings, 0 replies; 119+ messages in thread
From: Ingo Molnar @ 2017-02-06 13:28 UTC (permalink / raw)
To: linux-kernel
Cc: Andrew Morton, Linus Torvalds, Mike Galbraith, Oleg Nesterov,
Peter Zijlstra, Thomas Gleixner
Linux-0.01 already defined 'current' in the middle of sched.h, so this
is an ancient historical precedent - but still in a modern kernel it
looks a bit weird that we have:
#include <asm/current.h>
in the middle of the header.
Move it further up. If this was done for some obscure dependency
reasons then we'll trigger and document it.
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
include/linux/sched.h | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/include/linux/sched.h b/include/linux/sched.h
index f2c86b69c3e8..29262493c915 100644
--- a/include/linux/sched.h
+++ b/include/linux/sched.h
@@ -23,6 +23,8 @@
#include <linux/topology.h>
#include <linux/magic.h>
+#include <asm/current.h>
+
struct sched_attr;
struct sched_param;
@@ -1574,8 +1576,6 @@ extern struct task_struct *find_task_by_vpid(pid_t nr);
extern struct task_struct *find_task_by_pid_ns(pid_t nr,
struct pid_namespace *ns);
-#include <asm/current.h>
-
extern int wake_up_state(struct task_struct *tsk, unsigned int state);
extern int wake_up_process(struct task_struct *tsk);
extern void wake_up_new_task(struct task_struct *tsk);
--
2.7.4
^ permalink raw reply related [flat|nested] 119+ messages in thread
* [PATCH 50/89] sched/core: Convert ___assert_task_state() link time assert to BUILD_BUG_ON()
2017-02-06 13:28 [PATCH 00/89] Major reorganization of <linux/sched.h> Ingo Molnar
` (48 preceding siblings ...)
2017-02-06 13:28 ` [PATCH 49/89] sched/headers: Move <asm/current.h> include from the middle of <linux/sched.h> to the header portion Ingo Molnar
@ 2017-02-06 13:28 ` Ingo Molnar
2017-02-06 13:28 ` [PATCH 51/89] sched/headers: Split hotplug CPU interfaces out of <linux/sched.h> into <linux/sched/hotplug.h> Ingo Molnar
` (40 subsequent siblings)
90 siblings, 0 replies; 119+ messages in thread
From: Ingo Molnar @ 2017-02-06 13:28 UTC (permalink / raw)
To: linux-kernel
Cc: Andrew Morton, Linus Torvalds, Mike Galbraith, Oleg Nesterov,
Peter Zijlstra, Thomas Gleixner
The length of TASK_STATE_TO_CHAR_STR was still checked using the old
link-time manual error method - convert it to BUILD_BUG_ON(). This
has a couple of advantages:
- it's more obvious what's going on
- it reduces the size and complexity of <linux/sched.h>
- BUILD_BUG_ON() will fail during compilation, with a clearer
error message than the link time assert.
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
include/linux/sched.h | 3 ---
kernel/sched/core.c | 3 +++
2 files changed, 3 insertions(+), 3 deletions(-)
diff --git a/include/linux/sched.h b/include/linux/sched.h
index 29262493c915..41ca94a982b6 100644
--- a/include/linux/sched.h
+++ b/include/linux/sched.h
@@ -74,9 +74,6 @@ struct task_group;
#define TASK_STATE_TO_CHAR_STR "RSDTtXZxKWPNn"
-extern char ___assert_task_state[1 - 2*!!(
- sizeof(TASK_STATE_TO_CHAR_STR)-1 != ilog2(TASK_STATE_MAX)+1)];
-
/* Convenience macros for the sake of set_current_state */
#define TASK_KILLABLE (TASK_WAKEKILL | TASK_UNINTERRUPTIBLE)
#define TASK_STOPPED (TASK_WAKEKILL | __TASK_STOPPED)
diff --git a/kernel/sched/core.c b/kernel/sched/core.c
index 568e773c528f..eee4ac12811a 100644
--- a/kernel/sched/core.c
+++ b/kernel/sched/core.c
@@ -5233,6 +5233,9 @@ void sched_show_task(struct task_struct *p)
int ppid;
unsigned long state = p->state;
+ /* Make sure the string lines up properly with the number of task states: */
+ BUILD_BUG_ON(sizeof(TASK_STATE_TO_CHAR_STR)-1 != ilog2(TASK_STATE_MAX)+1);
+
if (!try_get_task_stack(p))
return;
if (state)
--
2.7.4
^ permalink raw reply related [flat|nested] 119+ messages in thread
* [PATCH 51/89] sched/headers: Split hotplug CPU interfaces out of <linux/sched.h> into <linux/sched/hotplug.h>
2017-02-06 13:28 [PATCH 00/89] Major reorganization of <linux/sched.h> Ingo Molnar
` (49 preceding siblings ...)
2017-02-06 13:28 ` [PATCH 50/89] sched/core: Convert ___assert_task_state() link time assert to BUILD_BUG_ON() Ingo Molnar
@ 2017-02-06 13:28 ` Ingo Molnar
2017-02-06 13:28 ` [PATCH 52/89] sched/headers: Split <linux/sched/task.h> out of <linux/sched.h> Ingo Molnar
` (39 subsequent siblings)
90 siblings, 0 replies; 119+ messages in thread
From: Ingo Molnar @ 2017-02-06 13:28 UTC (permalink / raw)
To: linux-kernel
Cc: Andrew Morton, Linus Torvalds, Mike Galbraith, Oleg Nesterov,
Peter Zijlstra, Thomas Gleixner
Split the CPU hotplug scheduler APIs out of the common header
and update the usage sites.
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
arch/arm/kernel/smp.c | 1 +
arch/arm64/include/asm/mmu_context.h | 1 +
arch/arm64/kernel/smp.c | 1 +
arch/ia64/kernel/process.c | 1 +
arch/metag/kernel/smp.c | 1 +
arch/mips/cavium-octeon/smp.c | 1 +
arch/mips/kernel/smp-bmips.c | 1 +
arch/mips/kernel/smp-cps.c | 1 +
arch/mips/loongson64/loongson-3/smp.c | 1 +
arch/powerpc/platforms/85xx/smp.c | 1 +
arch/powerpc/platforms/powermac/smp.c | 1 +
arch/powerpc/platforms/powernv/smp.c | 1 +
arch/powerpc/platforms/pseries/hotplug-cpu.c | 1 +
arch/s390/kernel/smp.c | 1 +
arch/sh/kernel/smp.c | 1 +
arch/sparc/kernel/smp_64.c | 1 +
arch/x86/kernel/smpboot.c | 1 +
arch/xtensa/kernel/smp.c | 1 +
include/linux/sched.h | 15 ---------------
include/linux/sched/hotplug.h | 24 ++++++++++++++++++++++++
kernel/cpu.c | 1 +
kernel/sched/core.c | 1 +
kernel/sched/sched.h | 4 +++-
23 files changed, 47 insertions(+), 16 deletions(-)
diff --git a/arch/arm/kernel/smp.c b/arch/arm/kernel/smp.c
index 7dd14e8395e6..cbad704bd8c8 100644
--- a/arch/arm/kernel/smp.c
+++ b/arch/arm/kernel/smp.c
@@ -12,6 +12,7 @@
#include <linux/init.h>
#include <linux/spinlock.h>
#include <linux/sched.h>
+#include <linux/sched/hotplug.h>
#include <linux/interrupt.h>
#include <linux/cache.h>
#include <linux/profile.h>
diff --git a/arch/arm64/include/asm/mmu_context.h b/arch/arm64/include/asm/mmu_context.h
index 0363fe80455c..c517c3c2f194 100644
--- a/arch/arm64/include/asm/mmu_context.h
+++ b/arch/arm64/include/asm/mmu_context.h
@@ -21,6 +21,7 @@
#include <linux/compiler.h>
#include <linux/sched.h>
+#include <linux/sched/hotplug.h>
#include <asm/cacheflush.h>
#include <asm/cpufeature.h>
diff --git a/arch/arm64/kernel/smp.c b/arch/arm64/kernel/smp.c
index cb87234cfcf2..1091a611e037 100644
--- a/arch/arm64/kernel/smp.c
+++ b/arch/arm64/kernel/smp.c
@@ -22,6 +22,7 @@
#include <linux/init.h>
#include <linux/spinlock.h>
#include <linux/sched.h>
+#include <linux/sched/hotplug.h>
#include <linux/interrupt.h>
#include <linux/cache.h>
#include <linux/profile.h>
diff --git a/arch/ia64/kernel/process.c b/arch/ia64/kernel/process.c
index 804b251ee5d1..2204ae450d65 100644
--- a/arch/ia64/kernel/process.c
+++ b/arch/ia64/kernel/process.c
@@ -21,6 +21,7 @@
#include <linux/personality.h>
#include <linux/sched.h>
#include <linux/sched/debug.h>
+#include <linux/sched/hotplug.h>
#include <linux/stddef.h>
#include <linux/thread_info.h>
#include <linux/unistd.h>
diff --git a/arch/metag/kernel/smp.c b/arch/metag/kernel/smp.c
index bad13232de51..142707513ba3 100644
--- a/arch/metag/kernel/smp.c
+++ b/arch/metag/kernel/smp.c
@@ -13,6 +13,7 @@
#include <linux/init.h>
#include <linux/spinlock.h>
#include <linux/sched.h>
+#include <linux/sched/hotplug.h>
#include <linux/interrupt.h>
#include <linux/cache.h>
#include <linux/profile.h>
diff --git a/arch/mips/cavium-octeon/smp.c b/arch/mips/cavium-octeon/smp.c
index 256fe6f65cf2..7264ab69cd4c 100644
--- a/arch/mips/cavium-octeon/smp.c
+++ b/arch/mips/cavium-octeon/smp.c
@@ -11,6 +11,7 @@
#include <linux/interrupt.h>
#include <linux/kernel_stat.h>
#include <linux/sched.h>
+#include <linux/sched/hotplug.h>
#include <linux/module.h>
#include <asm/mmu_context.h>
diff --git a/arch/mips/kernel/smp-bmips.c b/arch/mips/kernel/smp-bmips.c
index 6d0f1321e084..a84785fbb6eb 100644
--- a/arch/mips/kernel/smp-bmips.c
+++ b/arch/mips/kernel/smp-bmips.c
@@ -10,6 +10,7 @@
#include <linux/init.h>
#include <linux/sched.h>
+#include <linux/sched/hotplug.h>
#include <linux/mm.h>
#include <linux/delay.h>
#include <linux/smp.h>
diff --git a/arch/mips/kernel/smp-cps.c b/arch/mips/kernel/smp-cps.c
index 6183ad84cc73..06a674e23a99 100644
--- a/arch/mips/kernel/smp-cps.c
+++ b/arch/mips/kernel/smp-cps.c
@@ -12,6 +12,7 @@
#include <linux/io.h>
#include <linux/irqchip/mips-gic.h>
#include <linux/sched.h>
+#include <linux/sched/hotplug.h>
#include <linux/slab.h>
#include <linux/smp.h>
#include <linux/types.h>
diff --git a/arch/mips/loongson64/loongson-3/smp.c b/arch/mips/loongson64/loongson-3/smp.c
index 99aab9f85904..987b774ec9c6 100644
--- a/arch/mips/loongson64/loongson-3/smp.c
+++ b/arch/mips/loongson64/loongson-3/smp.c
@@ -17,6 +17,7 @@
#include <linux/init.h>
#include <linux/cpu.h>
#include <linux/sched.h>
+#include <linux/sched/hotplug.h>
#include <linux/smp.h>
#include <linux/cpufreq.h>
#include <asm/processor.h>
diff --git a/arch/powerpc/platforms/85xx/smp.c b/arch/powerpc/platforms/85xx/smp.c
index a83a6d26090d..078097a0b09d 100644
--- a/arch/powerpc/platforms/85xx/smp.c
+++ b/arch/powerpc/platforms/85xx/smp.c
@@ -12,6 +12,7 @@
#include <linux/stddef.h>
#include <linux/kernel.h>
+#include <linux/sched/hotplug.h>
#include <linux/init.h>
#include <linux/delay.h>
#include <linux/of.h>
diff --git a/arch/powerpc/platforms/powermac/smp.c b/arch/powerpc/platforms/powermac/smp.c
index c9eb7d6540ea..746ca7321b03 100644
--- a/arch/powerpc/platforms/powermac/smp.c
+++ b/arch/powerpc/platforms/powermac/smp.c
@@ -23,6 +23,7 @@
*/
#include <linux/kernel.h>
#include <linux/sched.h>
+#include <linux/sched/hotplug.h>
#include <linux/smp.h>
#include <linux/interrupt.h>
#include <linux/kernel_stat.h>
diff --git a/arch/powerpc/platforms/powernv/smp.c b/arch/powerpc/platforms/powernv/smp.c
index c789258ae1e1..b15a2e08b31c 100644
--- a/arch/powerpc/platforms/powernv/smp.c
+++ b/arch/powerpc/platforms/powernv/smp.c
@@ -12,6 +12,7 @@
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/sched.h>
+#include <linux/sched/hotplug.h>
#include <linux/smp.h>
#include <linux/interrupt.h>
#include <linux/delay.h>
diff --git a/arch/powerpc/platforms/pseries/hotplug-cpu.c b/arch/powerpc/platforms/pseries/hotplug-cpu.c
index a1b63e00b2f7..7bc0e91f8715 100644
--- a/arch/powerpc/platforms/pseries/hotplug-cpu.c
+++ b/arch/powerpc/platforms/pseries/hotplug-cpu.c
@@ -24,6 +24,7 @@
#include <linux/interrupt.h>
#include <linux/delay.h>
#include <linux/sched.h> /* for idle_task_exit */
+#include <linux/sched/hotplug.h>
#include <linux/cpu.h>
#include <linux/of.h>
#include <linux/slab.h>
diff --git a/arch/s390/kernel/smp.c b/arch/s390/kernel/smp.c
index e49f61aadaf9..e6f29aae962b 100644
--- a/arch/s390/kernel/smp.c
+++ b/arch/s390/kernel/smp.c
@@ -31,6 +31,7 @@
#include <linux/irqflags.h>
#include <linux/cpu.h>
#include <linux/slab.h>
+#include <linux/sched/hotplug.h>
#include <linux/crash_dump.h>
#include <linux/memblock.h>
#include <asm/asm-offsets.h>
diff --git a/arch/sh/kernel/smp.c b/arch/sh/kernel/smp.c
index 38e7860845db..a8c4d5785290 100644
--- a/arch/sh/kernel/smp.c
+++ b/arch/sh/kernel/smp.c
@@ -21,6 +21,7 @@
#include <linux/cpu.h>
#include <linux/interrupt.h>
#include <linux/sched.h>
+#include <linux/sched/hotplug.h>
#include <linux/atomic.h>
#include <linux/clockchips.h>
#include <asm/processor.h>
diff --git a/arch/sparc/kernel/smp_64.c b/arch/sparc/kernel/smp_64.c
index 0ce347f8e4cc..64e4acc9dd40 100644
--- a/arch/sparc/kernel/smp_64.c
+++ b/arch/sparc/kernel/smp_64.c
@@ -6,6 +6,7 @@
#include <linux/export.h>
#include <linux/kernel.h>
#include <linux/sched.h>
+#include <linux/sched/hotplug.h>
#include <linux/mm.h>
#include <linux/pagemap.h>
#include <linux/threads.h>
diff --git a/arch/x86/kernel/smpboot.c b/arch/x86/kernel/smpboot.c
index 0fe89249d9ac..ab848319c17c 100644
--- a/arch/x86/kernel/smpboot.c
+++ b/arch/x86/kernel/smpboot.c
@@ -46,6 +46,7 @@
#include <linux/export.h>
#include <linux/sched.h>
#include <linux/sched/topology.h>
+#include <linux/sched/hotplug.h>
#include <linux/percpu.h>
#include <linux/bootmem.h>
#include <linux/err.h>
diff --git a/arch/xtensa/kernel/smp.c b/arch/xtensa/kernel/smp.c
index fc4ad21a5ed4..2b5a7ee12900 100644
--- a/arch/xtensa/kernel/smp.c
+++ b/arch/xtensa/kernel/smp.c
@@ -21,6 +21,7 @@
#include <linux/irq.h>
#include <linux/kdebug.h>
#include <linux/module.h>
+#include <linux/sched/hotplug.h>
#include <linux/reboot.h>
#include <linux/seq_file.h>
#include <linux/smp.h>
diff --git a/include/linux/sched.h b/include/linux/sched.h
index 41ca94a982b6..45ee3bf791ab 100644
--- a/include/linux/sched.h
+++ b/include/linux/sched.h
@@ -188,15 +188,6 @@ extern void cpu_init (void);
extern void trap_init(void);
extern void update_process_times(int user);
extern void scheduler_tick(void);
-extern int sched_cpu_starting(unsigned int cpu);
-extern int sched_cpu_activate(unsigned int cpu);
-extern int sched_cpu_deactivate(unsigned int cpu);
-
-#ifdef CONFIG_HOTPLUG_CPU
-extern int sched_cpu_dying(unsigned int cpu);
-#else
-# define sched_cpu_dying NULL
-#endif
#define MAX_SCHEDULE_TIMEOUT LONG_MAX
extern signed long schedule_timeout(signed long timeout);
@@ -1492,12 +1483,6 @@ extern void sched_exec(void);
#define sched_exec() {}
#endif
-#ifdef CONFIG_HOTPLUG_CPU
-extern void idle_task_exit(void);
-#else
-static inline void idle_task_exit(void) {}
-#endif
-
extern int yield_to(struct task_struct *p, bool preempt);
extern void set_user_nice(struct task_struct *p, long nice);
extern int task_prio(const struct task_struct *p);
diff --git a/include/linux/sched/hotplug.h b/include/linux/sched/hotplug.h
new file mode 100644
index 000000000000..752ac7e628d7
--- /dev/null
+++ b/include/linux/sched/hotplug.h
@@ -0,0 +1,24 @@
+#ifndef _LINUX_SCHED_HOTPLUG_H
+#define _LINUX_SCHED_HOTPLUG_H
+
+/*
+ * Scheduler interfaces for hotplug CPU support:
+ */
+
+extern int sched_cpu_starting(unsigned int cpu);
+extern int sched_cpu_activate(unsigned int cpu);
+extern int sched_cpu_deactivate(unsigned int cpu);
+
+#ifdef CONFIG_HOTPLUG_CPU
+extern int sched_cpu_dying(unsigned int cpu);
+#else
+# define sched_cpu_dying NULL
+#endif
+
+#ifdef CONFIG_HOTPLUG_CPU
+extern void idle_task_exit(void);
+#else
+static inline void idle_task_exit(void) {}
+#endif
+
+#endif /* _LINUX_SCHED_HOTPLUG_H */
diff --git a/kernel/cpu.c b/kernel/cpu.c
index 0aae3183b029..78c206579d01 100644
--- a/kernel/cpu.c
+++ b/kernel/cpu.c
@@ -8,6 +8,7 @@
#include <linux/init.h>
#include <linux/notifier.h>
#include <linux/sched/signal.h>
+#include <linux/sched/hotplug.h>
#include <linux/unistd.h>
#include <linux/cpu.h>
#include <linux/oom.h>
diff --git a/kernel/sched/core.c b/kernel/sched/core.c
index eee4ac12811a..e37d2097dd87 100644
--- a/kernel/sched/core.c
+++ b/kernel/sched/core.c
@@ -10,6 +10,7 @@
#include <linux/sched.h>
#include <linux/sched/clock.h>
#include <linux/sched/loadavg.h>
+#include <linux/sched/hotplug.h>
#include <linux/cpuset.h>
#include <linux/delayacct.h>
#include <linux/init_task.h>
diff --git a/kernel/sched/sched.h b/kernel/sched/sched.h
index e1e819f731b2..0974eb2ef50d 100644
--- a/kernel/sched/sched.h
+++ b/kernel/sched/sched.h
@@ -3,6 +3,7 @@
#include <linux/sched/sysctl.h>
#include <linux/sched/topology.h>
#include <linux/sched/rt.h>
+#include <linux/sched/deadline.h>
#include <linux/sched/clock.h>
#include <linux/sched/wake_q.h>
#include <linux/sched/signal.h>
@@ -12,8 +13,9 @@
#include <linux/sched/stat.h>
#include <linux/sched/nohz.h>
#include <linux/sched/debug.h>
+#include <linux/sched/hotplug.h>
+
#include <linux/u64_stats_sync.h>
-#include <linux/sched/deadline.h>
#include <linux/kernel_stat.h>
#include <linux/binfmts.h>
#include <linux/mutex.h>
--
2.7.4
^ permalink raw reply related [flat|nested] 119+ messages in thread
* [PATCH 52/89] sched/headers: Split <linux/sched/task.h> out of <linux/sched.h>
2017-02-06 13:28 [PATCH 00/89] Major reorganization of <linux/sched.h> Ingo Molnar
` (50 preceding siblings ...)
2017-02-06 13:28 ` [PATCH 51/89] sched/headers: Split hotplug CPU interfaces out of <linux/sched.h> into <linux/sched/hotplug.h> Ingo Molnar
@ 2017-02-06 13:28 ` Ingo Molnar
2017-02-06 21:16 ` Linus Torvalds
2017-02-06 13:28 ` [PATCH 53/89] sched/headers: Simplify <linux/sched/task.h> dependencies Ingo Molnar
` (38 subsequent siblings)
90 siblings, 1 reply; 119+ messages in thread
From: Ingo Molnar @ 2017-02-06 13:28 UTC (permalink / raw)
To: linux-kernel
Cc: Andrew Morton, Linus Torvalds, Mike Galbraith, Oleg Nesterov,
Peter Zijlstra, Thomas Gleixner
There's a fair amount of task lifetime management (a.k.a fork())
related APIs in <linux/sched.h>, but only a small fraction of
the users of the generic sched.h header make use of them.
Split out these functions into the <linux/sched/task.h> header.
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
arch/alpha/kernel/process.c | 1 +
arch/arc/kernel/process.c | 2 +
arch/arm/kernel/process.c | 1 +
arch/arm/mm/init.c | 1 +
arch/arm64/kernel/process.c | 1 +
arch/avr32/kernel/process.c | 1 +
arch/blackfin/kernel/process.c | 1 +
arch/blackfin/kernel/trace.c | 1 +
arch/c6x/kernel/process.c | 1 +
arch/cris/arch-v10/kernel/process.c | 1 +
arch/cris/arch-v32/kernel/process.c | 1 +
arch/cris/kernel/process.c | 1 +
arch/frv/kernel/process.c | 1 +
arch/frv/mm/mmu-context.c | 1 +
arch/h8300/kernel/process.c | 1 +
arch/hexagon/kernel/process.c | 1 +
arch/ia64/kernel/mca.c | 1 +
arch/ia64/kernel/perfmon.c | 1 +
arch/ia64/kernel/process.c | 1 +
arch/ia64/kernel/ptrace.c | 1 +
arch/m32r/kernel/process.c | 1 +
arch/m32r/kernel/smpboot.c | 1 +
arch/m68k/kernel/process.c | 1 +
arch/metag/kernel/process.c | 1 +
arch/metag/kernel/traps.c | 1 +
arch/microblaze/kernel/process.c | 1 +
arch/mips/include/asm/processor.h | 1 +
arch/mips/kernel/mips-mt-fpaff.c | 1 +
arch/mips/kernel/process.c | 1 +
arch/mn10300/kernel/process.c | 1 +
arch/mn10300/kernel/smp.c | 1 +
arch/nios2/kernel/process.c | 1 +
arch/openrisc/kernel/process.c | 1 +
arch/parisc/kernel/process.c | 1 +
arch/powerpc/kernel/process.c | 1 +
arch/s390/kernel/process.c | 1 +
arch/s390/kernel/setup.c | 1 +
arch/score/kernel/process.c | 1 +
arch/sh/kernel/cpu/fpu.c | 1 +
arch/sh/kernel/process_32.c | 1 +
arch/sh/kernel/process_64.c | 1 +
arch/sh/mm/asids-debugfs.c | 1 +
arch/sparc/kernel/process_32.c | 1 +
arch/sparc/kernel/process_64.c | 1 +
arch/tile/kernel/process.c | 1 +
arch/tile/kernel/smpboot.c | 1 +
arch/tile/kernel/unaligned.c | 1 +
arch/tile/mm/fault.c | 5 +++
arch/um/kernel/exec.c | 1 +
arch/um/kernel/process.c | 1 +
arch/um/kernel/reboot.c | 1 +
arch/unicore32/kernel/process.c | 1 +
arch/x86/kernel/cpu/intel_rdt_rdtgroup.c | 1 +
arch/x86/kernel/fpu/init.c | 1 +
arch/x86/kernel/process.c | 1 +
arch/x86/kernel/process_32.c | 1 +
arch/x86/kernel/process_64.c | 1 +
arch/x86/kernel/unwind_frame.c | 1 +
arch/xtensa/kernel/process.c | 1 +
drivers/misc/kgdbts.c | 2 +
drivers/tty/sysrq.c | 2 +-
drivers/tty/tty_io.c | 1 +
fs/exec.c | 1 +
fs/fcntl.c | 1 +
fs/fs_struct.c | 1 +
fs/proc/array.c | 1 +
fs/proc/kcore.c | 1 +
include/linux/sched.h | 91 ---------------------------------------------
include/linux/sched/task.h | 103 +++++++++++++++++++++++++++++++++++++++++++++++++++
init/main.c | 1 +
kernel/cgroup.c | 1 +
kernel/cpu.c | 1 +
kernel/exit.c | 1 +
kernel/fork.c | 1 +
kernel/kmod.c | 1 +
kernel/kthread.c | 1 +
kernel/locking/lockdep.c | 1 +
kernel/pid.c | 1 +
kernel/pid_namespace.c | 1 +
kernel/power/process.c | 1 +
kernel/ptrace.c | 1 +
kernel/sched/sched.h | 1 +
kernel/signal.c | 1 +
kernel/smpboot.c | 1 +
kernel/sys.c | 1 +
kernel/trace/ftrace.c | 1 +
kernel/tracepoint.c | 1 +
lib/dma-debug.c | 1 +
mm/kmemleak.c | 1 +
mm/memory-failure.c | 1 +
mm/memory.c | 1 +
mm/oom_kill.c | 1 +
mm/rmap.c | 1 +
mm/swapfile.c | 1 +
mm/usercopy.c | 5 +++
security/keys/keyctl.c | 1 +
security/selinux/hooks.c | 1 +
97 files changed, 208 insertions(+), 92 deletions(-)
diff --git a/arch/alpha/kernel/process.c b/arch/alpha/kernel/process.c
index 88f7a974d311..713b4fac998e 100644
--- a/arch/alpha/kernel/process.c
+++ b/arch/alpha/kernel/process.c
@@ -12,6 +12,7 @@
#include <linux/module.h>
#include <linux/sched.h>
#include <linux/sched/debug.h>
+#include <linux/sched/task.h>
#include <linux/kernel.h>
#include <linux/mm.h>
#include <linux/smp.h>
diff --git a/arch/arc/kernel/process.c b/arch/arc/kernel/process.c
index a41a79a4f4fe..d618d26721ab 100644
--- a/arch/arc/kernel/process.c
+++ b/arch/arc/kernel/process.c
@@ -11,6 +11,8 @@
#include <linux/errno.h>
#include <linux/module.h>
#include <linux/sched.h>
+#include <linux/sched/task.h>
+
#include <linux/mm.h>
#include <linux/fs.h>
#include <linux/unistd.h>
diff --git a/arch/arm/kernel/process.c b/arch/arm/kernel/process.c
index 03d46395d1ff..d4c7c9a1afa9 100644
--- a/arch/arm/kernel/process.c
+++ b/arch/arm/kernel/process.c
@@ -13,6 +13,7 @@
#include <linux/export.h>
#include <linux/sched.h>
#include <linux/sched/debug.h>
+#include <linux/sched/task.h>
#include <linux/kernel.h>
#include <linux/mm.h>
#include <linux/stddef.h>
diff --git a/arch/arm/mm/init.c b/arch/arm/mm/init.c
index f234aab42f70..57a3e2f49b14 100644
--- a/arch/arm/mm/init.c
+++ b/arch/arm/mm/init.c
@@ -14,6 +14,7 @@
#include <linux/bootmem.h>
#include <linux/mman.h>
#include <linux/sched/signal.h>
+#include <linux/sched/task.h>
#include <linux/export.h>
#include <linux/nodemask.h>
#include <linux/initrd.h>
diff --git a/arch/arm64/kernel/process.c b/arch/arm64/kernel/process.c
index b2b680919e6d..cca8252846e9 100644
--- a/arch/arm64/kernel/process.c
+++ b/arch/arm64/kernel/process.c
@@ -25,6 +25,7 @@
#include <linux/export.h>
#include <linux/sched.h>
#include <linux/sched/debug.h>
+#include <linux/sched/task.h>
#include <linux/kernel.h>
#include <linux/mm.h>
#include <linux/stddef.h>
diff --git a/arch/avr32/kernel/process.c b/arch/avr32/kernel/process.c
index dac022d88d9d..75b944a5107c 100644
--- a/arch/avr32/kernel/process.c
+++ b/arch/avr32/kernel/process.c
@@ -7,6 +7,7 @@
*/
#include <linux/sched.h>
#include <linux/sched/debug.h>
+#include <linux/sched/task.h>
#include <linux/module.h>
#include <linux/kallsyms.h>
#include <linux/fs.h>
diff --git a/arch/blackfin/kernel/process.c b/arch/blackfin/kernel/process.c
index e95d094c20a6..1a1f444004b1 100644
--- a/arch/blackfin/kernel/process.c
+++ b/arch/blackfin/kernel/process.c
@@ -13,6 +13,7 @@
#include <linux/slab.h>
#include <linux/sched.h>
#include <linux/sched/debug.h>
+#include <linux/sched/task.h>
#include <linux/tick.h>
#include <linux/fs.h>
#include <linux/err.h>
diff --git a/arch/blackfin/kernel/trace.c b/arch/blackfin/kernel/trace.c
index 23c05b8effb3..151f22196ab6 100644
--- a/arch/blackfin/kernel/trace.c
+++ b/arch/blackfin/kernel/trace.c
@@ -13,6 +13,7 @@
#include <linux/oom.h>
#include <linux/sched/signal.h>
#include <linux/sched/debug.h>
+#include <linux/sched/task.h>
#include <linux/uaccess.h>
#include <linux/module.h>
#include <linux/kallsyms.h>
diff --git a/arch/c6x/kernel/process.c b/arch/c6x/kernel/process.c
index 0ee7686a78f3..6b61779d426a 100644
--- a/arch/c6x/kernel/process.c
+++ b/arch/c6x/kernel/process.c
@@ -17,6 +17,7 @@
#include <linux/mqueue.h>
#include <linux/syscalls.h>
#include <linux/reboot.h>
+#include <linux/sched/task.h>
#include <asm/syscalls.h>
diff --git a/arch/cris/arch-v10/kernel/process.c b/arch/cris/arch-v10/kernel/process.c
index 068a40374200..808c2186b704 100644
--- a/arch/cris/arch-v10/kernel/process.c
+++ b/arch/cris/arch-v10/kernel/process.c
@@ -12,6 +12,7 @@
#include <linux/sched.h>
#include <linux/sched/debug.h>
+#include <linux/sched/task.h>
#include <linux/slab.h>
#include <linux/err.h>
#include <linux/fs.h>
diff --git a/arch/cris/arch-v32/kernel/process.c b/arch/cris/arch-v32/kernel/process.c
index 613c2d71bf10..c852df262948 100644
--- a/arch/cris/arch-v32/kernel/process.c
+++ b/arch/cris/arch-v32/kernel/process.c
@@ -10,6 +10,7 @@
#include <linux/sched.h>
#include <linux/sched/debug.h>
+#include <linux/sched/task.h>
#include <linux/slab.h>
#include <linux/err.h>
#include <linux/fs.h>
diff --git a/arch/cris/kernel/process.c b/arch/cris/kernel/process.c
index 50a7dd451456..0bbd3a0c3d70 100644
--- a/arch/cris/kernel/process.c
+++ b/arch/cris/kernel/process.c
@@ -20,6 +20,7 @@
#include <linux/spinlock.h>
#include <linux/init_task.h>
#include <linux/sched.h>
+#include <linux/sched/task.h>
#include <linux/fs.h>
#include <linux/user.h>
#include <linux/elfcore.h>
diff --git a/arch/frv/kernel/process.c b/arch/frv/kernel/process.c
index cf4c34c09ab3..c96dbd4b8626 100644
--- a/arch/frv/kernel/process.c
+++ b/arch/frv/kernel/process.c
@@ -14,6 +14,7 @@
#include <linux/errno.h>
#include <linux/sched.h>
#include <linux/sched/debug.h>
+#include <linux/sched/task.h>
#include <linux/kernel.h>
#include <linux/mm.h>
#include <linux/smp.h>
diff --git a/arch/frv/mm/mmu-context.c b/arch/frv/mm/mmu-context.c
index a3b4d02de7c0..b6e25217e1bb 100644
--- a/arch/frv/mm/mmu-context.c
+++ b/arch/frv/mm/mmu-context.c
@@ -11,6 +11,7 @@
#include <linux/sched.h>
#include <linux/sched/mm.h>
+#include <linux/sched/task.h>
#include <linux/mm.h>
#include <asm/tlbflush.h>
diff --git a/arch/h8300/kernel/process.c b/arch/h8300/kernel/process.c
index d7cabf373fe3..54e4d6f01865 100644
--- a/arch/h8300/kernel/process.c
+++ b/arch/h8300/kernel/process.c
@@ -26,6 +26,7 @@
#include <linux/module.h>
#include <linux/sched.h>
#include <linux/sched/debug.h>
+#include <linux/sched/task.h>
#include <linux/kernel.h>
#include <linux/mm.h>
#include <linux/smp.h>
diff --git a/arch/hexagon/kernel/process.c b/arch/hexagon/kernel/process.c
index 3bdd9592d025..a2a822a875b6 100644
--- a/arch/hexagon/kernel/process.c
+++ b/arch/hexagon/kernel/process.c
@@ -20,6 +20,7 @@
#include <linux/sched.h>
#include <linux/sched/debug.h>
+#include <linux/sched/task.h>
#include <linux/types.h>
#include <linux/module.h>
#include <linux/tick.h>
diff --git a/arch/ia64/kernel/mca.c b/arch/ia64/kernel/mca.c
index f9fe3ac64242..79c7c46d7dc1 100644
--- a/arch/ia64/kernel/mca.c
+++ b/arch/ia64/kernel/mca.c
@@ -74,6 +74,7 @@
#include <linux/init.h>
#include <linux/sched/signal.h>
#include <linux/sched/debug.h>
+#include <linux/sched/task.h>
#include <linux/interrupt.h>
#include <linux/irq.h>
#include <linux/bootmem.h>
diff --git a/arch/ia64/kernel/perfmon.c b/arch/ia64/kernel/perfmon.c
index 677a86826771..7e943d3c05ed 100644
--- a/arch/ia64/kernel/perfmon.c
+++ b/arch/ia64/kernel/perfmon.c
@@ -22,6 +22,7 @@
#include <linux/module.h>
#include <linux/kernel.h>
#include <linux/sched.h>
+#include <linux/sched/task.h>
#include <linux/interrupt.h>
#include <linux/proc_fs.h>
#include <linux/seq_file.h>
diff --git a/arch/ia64/kernel/process.c b/arch/ia64/kernel/process.c
index 2204ae450d65..054facf22156 100644
--- a/arch/ia64/kernel/process.c
+++ b/arch/ia64/kernel/process.c
@@ -22,6 +22,7 @@
#include <linux/sched.h>
#include <linux/sched/debug.h>
#include <linux/sched/hotplug.h>
+#include <linux/sched/task.h>
#include <linux/stddef.h>
#include <linux/thread_info.h>
#include <linux/unistd.h>
diff --git a/arch/ia64/kernel/ptrace.c b/arch/ia64/kernel/ptrace.c
index 0b1153e610ea..04fe1436e1cc 100644
--- a/arch/ia64/kernel/ptrace.c
+++ b/arch/ia64/kernel/ptrace.c
@@ -11,6 +11,7 @@
*/
#include <linux/kernel.h>
#include <linux/sched.h>
+#include <linux/sched/task.h>
#include <linux/mm.h>
#include <linux/errno.h>
#include <linux/ptrace.h>
diff --git a/arch/m32r/kernel/process.c b/arch/m32r/kernel/process.c
index 1a227c1fdb1a..2a450382934c 100644
--- a/arch/m32r/kernel/process.c
+++ b/arch/m32r/kernel/process.c
@@ -23,6 +23,7 @@
#include <linux/fs.h>
#include <linux/slab.h>
#include <linux/sched/debug.h>
+#include <linux/sched/task.h>
#include <linux/module.h>
#include <linux/ptrace.h>
#include <linux/unistd.h>
diff --git a/arch/m32r/kernel/smpboot.c b/arch/m32r/kernel/smpboot.c
index f98d2f6519d6..a7d04684d2c7 100644
--- a/arch/m32r/kernel/smpboot.c
+++ b/arch/m32r/kernel/smpboot.c
@@ -45,6 +45,7 @@
#include <linux/kernel.h>
#include <linux/mm.h>
#include <linux/sched.h>
+#include <linux/sched/task.h>
#include <linux/err.h>
#include <linux/irq.h>
#include <linux/bootmem.h>
diff --git a/arch/m68k/kernel/process.c b/arch/m68k/kernel/process.c
index fd357b25ffc0..145218c1ad82 100644
--- a/arch/m68k/kernel/process.c
+++ b/arch/m68k/kernel/process.c
@@ -14,6 +14,7 @@
#include <linux/module.h>
#include <linux/sched.h>
#include <linux/sched/debug.h>
+#include <linux/sched/task.h>
#include <linux/kernel.h>
#include <linux/mm.h>
#include <linux/slab.h>
diff --git a/arch/metag/kernel/process.c b/arch/metag/kernel/process.c
index 2e611bd37515..801e6f927e62 100644
--- a/arch/metag/kernel/process.c
+++ b/arch/metag/kernel/process.c
@@ -9,6 +9,7 @@
#include <linux/export.h>
#include <linux/sched.h>
#include <linux/sched/debug.h>
+#include <linux/sched/task.h>
#include <linux/kernel.h>
#include <linux/mm.h>
#include <linux/unistd.h>
diff --git a/arch/metag/kernel/traps.c b/arch/metag/kernel/traps.c
index 5ce67f9124aa..23c5ac33a93f 100644
--- a/arch/metag/kernel/traps.c
+++ b/arch/metag/kernel/traps.c
@@ -11,6 +11,7 @@
#include <linux/export.h>
#include <linux/sched.h>
#include <linux/sched/debug.h>
+#include <linux/sched/task.h>
#include <linux/signal.h>
#include <linux/kernel.h>
#include <linux/mm.h>
diff --git a/arch/microblaze/kernel/process.c b/arch/microblaze/kernel/process.c
index 8c5fdb2e2850..a642fe5ac5ff 100644
--- a/arch/microblaze/kernel/process.c
+++ b/arch/microblaze/kernel/process.c
@@ -12,6 +12,7 @@
#include <linux/export.h>
#include <linux/sched.h>
#include <linux/sched/debug.h>
+#include <linux/sched/task.h>
#include <linux/pm.h>
#include <linux/tick.h>
#include <linux/bitops.h>
diff --git a/arch/mips/include/asm/processor.h b/arch/mips/include/asm/processor.h
index 95b8c471f572..461734dea839 100644
--- a/arch/mips/include/asm/processor.h
+++ b/arch/mips/include/asm/processor.h
@@ -14,6 +14,7 @@
#include <linux/atomic.h>
#include <linux/cpumask.h>
#include <linux/threads.h>
+#include <linux/sched/task.h>
#include <asm/cachectl.h>
#include <asm/cpu.h>
diff --git a/arch/mips/kernel/mips-mt-fpaff.c b/arch/mips/kernel/mips-mt-fpaff.c
index dfa031d4204d..a8f1854937a5 100644
--- a/arch/mips/kernel/mips-mt-fpaff.c
+++ b/arch/mips/kernel/mips-mt-fpaff.c
@@ -9,6 +9,7 @@
#include <linux/kernel.h>
#include <linux/init.h>
#include <linux/sched.h>
+#include <linux/sched/task.h>
#include <linux/cred.h>
#include <linux/security.h>
#include <linux/types.h>
diff --git a/arch/mips/kernel/process.c b/arch/mips/kernel/process.c
index 9a8d5b0e6f31..eb1d387cacdf 100644
--- a/arch/mips/kernel/process.c
+++ b/arch/mips/kernel/process.c
@@ -12,6 +12,7 @@
#include <linux/errno.h>
#include <linux/sched.h>
#include <linux/sched/debug.h>
+#include <linux/sched/task.h>
#include <linux/tick.h>
#include <linux/kernel.h>
#include <linux/mm.h>
diff --git a/arch/mn10300/kernel/process.c b/arch/mn10300/kernel/process.c
index a1e2f8301d94..8ca7a9de09a5 100644
--- a/arch/mn10300/kernel/process.c
+++ b/arch/mn10300/kernel/process.c
@@ -12,6 +12,7 @@
#include <linux/errno.h>
#include <linux/sched.h>
#include <linux/sched/debug.h>
+#include <linux/sched/task.h>
#include <linux/kernel.h>
#include <linux/mm.h>
#include <linux/smp.h>
diff --git a/arch/mn10300/kernel/smp.c b/arch/mn10300/kernel/smp.c
index 426173c4b0b9..d3559925e6a0 100644
--- a/arch/mn10300/kernel/smp.c
+++ b/arch/mn10300/kernel/smp.c
@@ -22,6 +22,7 @@
#include <linux/kernel.h>
#include <linux/delay.h>
#include <linux/sched.h>
+#include <linux/sched/task.h>
#include <linux/profile.h>
#include <linux/smp.h>
#include <linux/cpu.h>
diff --git a/arch/nios2/kernel/process.c b/arch/nios2/kernel/process.c
index 3ad87a6b119b..5ee1ddf6a924 100644
--- a/arch/nios2/kernel/process.c
+++ b/arch/nios2/kernel/process.c
@@ -15,6 +15,7 @@
#include <linux/export.h>
#include <linux/sched.h>
#include <linux/sched/debug.h>
+#include <linux/sched/task.h>
#include <linux/tick.h>
#include <linux/uaccess.h>
diff --git a/arch/openrisc/kernel/process.c b/arch/openrisc/kernel/process.c
index 25dc57ea3dee..20c61068ea37 100644
--- a/arch/openrisc/kernel/process.c
+++ b/arch/openrisc/kernel/process.c
@@ -23,6 +23,7 @@
#include <linux/errno.h>
#include <linux/sched.h>
#include <linux/sched/debug.h>
+#include <linux/sched/task.h>
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/mm.h>
diff --git a/arch/parisc/kernel/process.c b/arch/parisc/kernel/process.c
index 8c283caf2b4d..e5f97239cc5e 100644
--- a/arch/parisc/kernel/process.c
+++ b/arch/parisc/kernel/process.c
@@ -44,6 +44,7 @@
#include <linux/ptrace.h>
#include <linux/sched.h>
#include <linux/sched/debug.h>
+#include <linux/sched/task.h>
#include <linux/slab.h>
#include <linux/stddef.h>
#include <linux/unistd.h>
diff --git a/arch/powerpc/kernel/process.c b/arch/powerpc/kernel/process.c
index 2d92a01b9c0f..3ef67551aeb2 100644
--- a/arch/powerpc/kernel/process.c
+++ b/arch/powerpc/kernel/process.c
@@ -17,6 +17,7 @@
#include <linux/errno.h>
#include <linux/sched.h>
#include <linux/sched/debug.h>
+#include <linux/sched/task.h>
#include <linux/kernel.h>
#include <linux/mm.h>
#include <linux/smp.h>
diff --git a/arch/s390/kernel/process.c b/arch/s390/kernel/process.c
index 9355b0c05d25..63fd09718992 100644
--- a/arch/s390/kernel/process.c
+++ b/arch/s390/kernel/process.c
@@ -12,6 +12,7 @@
#include <linux/cpu.h>
#include <linux/sched.h>
#include <linux/sched/debug.h>
+#include <linux/sched/task.h>
#include <linux/kernel.h>
#include <linux/mm.h>
#include <linux/elfcore.h>
diff --git a/arch/s390/kernel/setup.c b/arch/s390/kernel/setup.c
index 865a48871ca4..aab55b8c2143 100644
--- a/arch/s390/kernel/setup.c
+++ b/arch/s390/kernel/setup.c
@@ -18,6 +18,7 @@
#include <linux/errno.h>
#include <linux/export.h>
#include <linux/sched.h>
+#include <linux/sched/task.h>
#include <linux/kernel.h>
#include <linux/memblock.h>
#include <linux/mm.h>
diff --git a/arch/score/kernel/process.c b/arch/score/kernel/process.c
index aae9480706c2..32924159d8c9 100644
--- a/arch/score/kernel/process.c
+++ b/arch/score/kernel/process.c
@@ -28,6 +28,7 @@
#include <linux/elfcore.h>
#include <linux/pm.h>
#include <linux/rcupdate.h>
+#include <linux/sched/task.h>
void (*pm_power_off)(void);
EXPORT_SYMBOL(pm_power_off);
diff --git a/arch/sh/kernel/cpu/fpu.c b/arch/sh/kernel/cpu/fpu.c
index 37e35330aae6..b76370a47bf9 100644
--- a/arch/sh/kernel/cpu/fpu.c
+++ b/arch/sh/kernel/cpu/fpu.c
@@ -1,4 +1,5 @@
#include <linux/sched/signal.h>
+#include <linux/sched/task.h>
#include <linux/slab.h>
#include <asm/processor.h>
#include <asm/fpu.h>
diff --git a/arch/sh/kernel/process_32.c b/arch/sh/kernel/process_32.c
index 5098274e0f23..493c3eb86aa5 100644
--- a/arch/sh/kernel/process_32.c
+++ b/arch/sh/kernel/process_32.c
@@ -16,6 +16,7 @@
#include <linux/module.h>
#include <linux/mm.h>
#include <linux/sched/debug.h>
+#include <linux/sched/task.h>
#include <linux/slab.h>
#include <linux/elfcore.h>
#include <linux/kallsyms.h>
diff --git a/arch/sh/kernel/process_64.c b/arch/sh/kernel/process_64.c
index ced21a417d9d..056607185158 100644
--- a/arch/sh/kernel/process_64.c
+++ b/arch/sh/kernel/process_64.c
@@ -26,6 +26,7 @@
#include <linux/module.h>
#include <linux/io.h>
#include <linux/sched/debug.h>
+#include <linux/sched/task.h>
#include <asm/syscalls.h>
#include <linux/uaccess.h>
#include <asm/pgtable.h>
diff --git a/arch/sh/mm/asids-debugfs.c b/arch/sh/mm/asids-debugfs.c
index 110bd35165bf..e5539e0f8e3b 100644
--- a/arch/sh/mm/asids-debugfs.c
+++ b/arch/sh/mm/asids-debugfs.c
@@ -21,6 +21,7 @@
#include <linux/seq_file.h>
#include <linux/spinlock.h>
#include <linux/sched/signal.h>
+#include <linux/sched/task.h>
#include <asm/processor.h>
#include <asm/mmu_context.h>
diff --git a/arch/sparc/kernel/process_32.c b/arch/sparc/kernel/process_32.c
index 237a471c8ed5..ed87c45a785b 100644
--- a/arch/sparc/kernel/process_32.c
+++ b/arch/sparc/kernel/process_32.c
@@ -15,6 +15,7 @@
#include <linux/module.h>
#include <linux/sched.h>
#include <linux/sched/debug.h>
+#include <linux/sched/task.h>
#include <linux/kernel.h>
#include <linux/mm.h>
#include <linux/stddef.h>
diff --git a/arch/sparc/kernel/process_64.c b/arch/sparc/kernel/process_64.c
index 98f6ff6eaa55..4c82a73af893 100644
--- a/arch/sparc/kernel/process_64.c
+++ b/arch/sparc/kernel/process_64.c
@@ -15,6 +15,7 @@
#include <linux/export.h>
#include <linux/sched.h>
#include <linux/sched/debug.h>
+#include <linux/sched/task.h>
#include <linux/kernel.h>
#include <linux/mm.h>
#include <linux/fs.h>
diff --git a/arch/tile/kernel/process.c b/arch/tile/kernel/process.c
index 557b4c8435d0..dbb4fa76d1dd 100644
--- a/arch/tile/kernel/process.c
+++ b/arch/tile/kernel/process.c
@@ -14,6 +14,7 @@
#include <linux/sched.h>
#include <linux/sched/debug.h>
+#include <linux/sched/task.h>
#include <linux/preempt.h>
#include <linux/module.h>
#include <linux/fs.h>
diff --git a/arch/tile/kernel/smpboot.c b/arch/tile/kernel/smpboot.c
index 6c0abaacec33..dc0cc5b13076 100644
--- a/arch/tile/kernel/smpboot.c
+++ b/arch/tile/kernel/smpboot.c
@@ -17,6 +17,7 @@
#include <linux/kernel.h>
#include <linux/mm.h>
#include <linux/sched.h>
+#include <linux/sched/task.h>
#include <linux/kernel_stat.h>
#include <linux/bootmem.h>
#include <linux/notifier.h>
diff --git a/arch/tile/kernel/unaligned.c b/arch/tile/kernel/unaligned.c
index 142acae78316..8149c38f67b6 100644
--- a/arch/tile/kernel/unaligned.c
+++ b/arch/tile/kernel/unaligned.c
@@ -18,6 +18,7 @@
#include <linux/ptrace.h>
#include <linux/slab.h>
#include <linux/sched/debug.h>
+#include <linux/sched/task.h>
#include <linux/thread_info.h>
#include <linux/uaccess.h>
#include <linux/mman.h>
diff --git a/arch/tile/mm/fault.c b/arch/tile/mm/fault.c
index 005c91c2adca..1e0509a4c8bd 100644
--- a/arch/tile/mm/fault.c
+++ b/arch/tile/mm/fault.c
@@ -17,6 +17,11 @@
#include <linux/signal.h>
#include <linux/sched.h>
#include <linux/sched/debug.h>
+<<<<<<< HEAD
+=======
+#include <linux/sched/task.h>
+#include <linux/sched/task_stack.h>
+>>>>>>> 9ecfbdbd2d46... fork.h fixes
#include <linux/kernel.h>
#include <linux/errno.h>
#include <linux/string.h>
diff --git a/arch/um/kernel/exec.c b/arch/um/kernel/exec.c
index 770ec07b6a6a..2df4e5d11939 100644
--- a/arch/um/kernel/exec.c
+++ b/arch/um/kernel/exec.c
@@ -8,6 +8,7 @@
#include <linux/fs.h>
#include <linux/ptrace.h>
#include <linux/sched.h>
+#include <linux/sched/task.h>
#include <linux/slab.h>
#include <asm/current.h>
#include <asm/processor.h>
diff --git a/arch/um/kernel/process.c b/arch/um/kernel/process.c
index c6c45ea4021f..e76dc7c11251 100644
--- a/arch/um/kernel/process.c
+++ b/arch/um/kernel/process.c
@@ -18,6 +18,7 @@
#include <linux/slab.h>
#include <linux/sched.h>
#include <linux/sched/debug.h>
+#include <linux/sched/task.h>
#include <linux/seq_file.h>
#include <linux/tick.h>
#include <linux/threads.h>
diff --git a/arch/um/kernel/reboot.c b/arch/um/kernel/reboot.c
index 79218106a033..0bc921cee0b1 100644
--- a/arch/um/kernel/reboot.c
+++ b/arch/um/kernel/reboot.c
@@ -4,6 +4,7 @@
*/
#include <linux/sched/signal.h>
+#include <linux/sched/task.h>
#include <linux/spinlock.h>
#include <linux/slab.h>
#include <linux/oom.h>
diff --git a/arch/unicore32/kernel/process.c b/arch/unicore32/kernel/process.c
index c1a0eec88f1f..d58f1600b477 100644
--- a/arch/unicore32/kernel/process.c
+++ b/arch/unicore32/kernel/process.c
@@ -14,6 +14,7 @@
#include <linux/module.h>
#include <linux/sched.h>
#include <linux/sched/debug.h>
+#include <linux/sched/task.h>
#include <linux/kernel.h>
#include <linux/mm.h>
#include <linux/stddef.h>
diff --git a/arch/x86/kernel/cpu/intel_rdt_rdtgroup.c b/arch/x86/kernel/cpu/intel_rdt_rdtgroup.c
index d48af18e7baf..0bbe0f3a039f 100644
--- a/arch/x86/kernel/cpu/intel_rdt_rdtgroup.c
+++ b/arch/x86/kernel/cpu/intel_rdt_rdtgroup.c
@@ -26,6 +26,7 @@
#include <linux/kernfs.h>
#include <linux/seq_file.h>
#include <linux/sched/signal.h>
+#include <linux/sched/task.h>
#include <linux/slab.h>
#include <linux/cpu.h>
#include <linux/task_work.h>
diff --git a/arch/x86/kernel/fpu/init.c b/arch/x86/kernel/fpu/init.c
index 60dece392b3a..8c4476631d32 100644
--- a/arch/x86/kernel/fpu/init.c
+++ b/arch/x86/kernel/fpu/init.c
@@ -7,6 +7,7 @@
#include <asm/cmdline.h>
#include <linux/sched.h>
+#include <linux/sched/task.h>
#include <linux/init.h>
/*
diff --git a/arch/x86/kernel/process.c b/arch/x86/kernel/process.c
index 0430dd4e33d9..183d3f12c407 100644
--- a/arch/x86/kernel/process.c
+++ b/arch/x86/kernel/process.c
@@ -9,6 +9,7 @@
#include <linux/sched.h>
#include <linux/sched/idle.h>
#include <linux/sched/debug.h>
+#include <linux/sched/task.h>
#include <linux/init.h>
#include <linux/export.h>
#include <linux/pm.h>
diff --git a/arch/x86/kernel/process_32.c b/arch/x86/kernel/process_32.c
index a0ac3e81518a..d79ffa47aab8 100644
--- a/arch/x86/kernel/process_32.c
+++ b/arch/x86/kernel/process_32.c
@@ -12,6 +12,7 @@
#include <linux/cpu.h>
#include <linux/errno.h>
#include <linux/sched.h>
+#include <linux/sched/task.h>
#include <linux/fs.h>
#include <linux/kernel.h>
#include <linux/mm.h>
diff --git a/arch/x86/kernel/process_64.c b/arch/x86/kernel/process_64.c
index a61e141b6891..124f5652ae3c 100644
--- a/arch/x86/kernel/process_64.c
+++ b/arch/x86/kernel/process_64.c
@@ -17,6 +17,7 @@
#include <linux/cpu.h>
#include <linux/errno.h>
#include <linux/sched.h>
+#include <linux/sched/task.h>
#include <linux/fs.h>
#include <linux/kernel.h>
#include <linux/mm.h>
diff --git a/arch/x86/kernel/unwind_frame.c b/arch/x86/kernel/unwind_frame.c
index 23d15565d02a..7c0abdc9a732 100644
--- a/arch/x86/kernel/unwind_frame.c
+++ b/arch/x86/kernel/unwind_frame.c
@@ -1,4 +1,5 @@
#include <linux/sched.h>
+#include <linux/sched/task.h>
#include <asm/ptrace.h>
#include <asm/bitops.h>
#include <asm/stacktrace.h>
diff --git a/arch/xtensa/kernel/process.c b/arch/xtensa/kernel/process.c
index afaa3588d869..af33f9d4c624 100644
--- a/arch/xtensa/kernel/process.c
+++ b/arch/xtensa/kernel/process.c
@@ -18,6 +18,7 @@
#include <linux/errno.h>
#include <linux/sched.h>
#include <linux/sched/debug.h>
+#include <linux/sched/task.h>
#include <linux/kernel.h>
#include <linux/mm.h>
#include <linux/smp.h>
diff --git a/drivers/misc/kgdbts.c b/drivers/misc/kgdbts.c
index 99635dd9dbac..fc7efedbc4be 100644
--- a/drivers/misc/kgdbts.c
+++ b/drivers/misc/kgdbts.c
@@ -103,6 +103,8 @@
#include <linux/delay.h>
#include <linux/kthread.h>
#include <linux/module.h>
+#include <linux/sched/task.h>
+
#include <asm/sections.h>
#define v1printk(a...) do { \
diff --git a/drivers/tty/sysrq.c b/drivers/tty/sysrq.c
index 7f90f22d6272..b5dff7d3916f 100644
--- a/drivers/tty/sysrq.c
+++ b/drivers/tty/sysrq.c
@@ -17,7 +17,7 @@
#include <linux/sched/signal.h>
#include <linux/sched/rt.h>
#include <linux/sched/debug.h>
-#include <linux/sched/debug.h>
+#include <linux/sched/task.h>
#include <linux/interrupt.h>
#include <linux/mm.h>
#include <linux/fs.h>
diff --git a/drivers/tty/tty_io.c b/drivers/tty/tty_io.c
index 05c97f8ff2ed..ed331fb9cdb0 100644
--- a/drivers/tty/tty_io.c
+++ b/drivers/tty/tty_io.c
@@ -70,6 +70,7 @@
#include <linux/signal.h>
#include <linux/fcntl.h>
#include <linux/sched/signal.h>
+#include <linux/sched/task.h>
#include <linux/interrupt.h>
#include <linux/tty.h>
#include <linux/tty_driver.h>
diff --git a/fs/exec.c b/fs/exec.c
index e3d16ee36223..3996607eaecd 100644
--- a/fs/exec.c
+++ b/fs/exec.c
@@ -36,6 +36,7 @@
#include <linux/sched/coredump.h>
#include <linux/sched/signal.h>
#include <linux/sched/numa_balancing.h>
+#include <linux/sched/task.h>
#include <linux/pagemap.h>
#include <linux/perf_event.h>
#include <linux/highmem.h>
diff --git a/fs/fcntl.c b/fs/fcntl.c
index e1c54f20325c..be8fbe289087 100644
--- a/fs/fcntl.c
+++ b/fs/fcntl.c
@@ -7,6 +7,7 @@
#include <linux/syscalls.h>
#include <linux/init.h>
#include <linux/mm.h>
+#include <linux/sched/task.h>
#include <linux/fs.h>
#include <linux/file.h>
#include <linux/fdtable.h>
diff --git a/fs/fs_struct.c b/fs/fs_struct.c
index 543ed50f0387..be0250788b73 100644
--- a/fs/fs_struct.c
+++ b/fs/fs_struct.c
@@ -1,5 +1,6 @@
#include <linux/export.h>
#include <linux/sched/signal.h>
+#include <linux/sched/task.h>
#include <linux/fs.h>
#include <linux/path.h>
#include <linux/slab.h>
diff --git a/fs/proc/array.c b/fs/proc/array.c
index cfe7f934a300..f3169b58af38 100644
--- a/fs/proc/array.c
+++ b/fs/proc/array.c
@@ -62,6 +62,7 @@
#include <linux/mman.h>
#include <linux/sched/mm.h>
#include <linux/sched/numa_balancing.h>
+#include <linux/sched/task.h>
#include <linux/proc_fs.h>
#include <linux/ioport.h>
#include <linux/uaccess.h>
diff --git a/fs/proc/kcore.c b/fs/proc/kcore.c
index 0b80ad87b4d6..c5fff9a6aa66 100644
--- a/fs/proc/kcore.c
+++ b/fs/proc/kcore.c
@@ -28,6 +28,7 @@
#include <linux/list.h>
#include <linux/ioport.h>
#include <linux/memory.h>
+#include <linux/sched/task.h>
#include <asm/sections.h>
#include "internal.h"
diff --git a/include/linux/sched.h b/include/linux/sched.h
index 45ee3bf791ab..b7ed84a2487f 100644
--- a/include/linux/sched.h
+++ b/include/linux/sched.h
@@ -157,28 +157,10 @@ struct task_group;
/* Task command name length */
#define TASK_COMM_LEN 16
-#include <linux/spinlock.h>
-
-/*
- * This serializes "schedule()" and also protects
- * the run-queue from deletions/modifications (but
- * _adding_ to the beginning of the run-queue has
- * a separate lock).
- */
-extern rwlock_t tasklist_lock;
-extern spinlock_t mmlist_lock;
-
struct task_struct;
-#ifdef CONFIG_PROVE_RCU
-extern int lockdep_tasklist_lock_is_held(void);
-#endif /* #ifdef CONFIG_PROVE_RCU */
-
extern void sched_init(void);
extern void sched_init_smp(void);
-extern asmlinkage void schedule_tail(struct task_struct *prev);
-extern void init_idle(struct task_struct *idle, int cpu);
-extern void init_idle_bootup_task(struct task_struct *idle);
extern cpumask_var_t cpu_isolated_map;
@@ -203,8 +185,6 @@ extern void io_schedule_finish(int token);
extern long io_schedule_timeout(long timeout);
extern void io_schedule(void);
-void __noreturn do_task_dead(void);
-
struct nsproxy;
/**
@@ -1106,24 +1086,6 @@ struct task_struct {
*/
};
-#ifdef CONFIG_ARCH_WANTS_DYNAMIC_TASK_STRUCT
-extern int arch_task_struct_size __read_mostly;
-#else
-# define arch_task_struct_size (sizeof(struct task_struct))
-#endif
-
-#ifdef CONFIG_VMAP_STACK
-static inline struct vm_struct *task_stack_vm_area(const struct task_struct *t)
-{
- return t->stack_vm_area;
-}
-#else
-static inline struct vm_struct *task_stack_vm_area(const struct task_struct *t)
-{
- return NULL;
-}
-#endif
-
/* Future-safe accessor for struct task_struct's cpus_allowed. */
#define tsk_cpus_allowed(tsk) (&(tsk)->cpus_allowed)
@@ -1423,21 +1385,6 @@ TASK_PFA_CLEAR(SPREAD_SLAB, spread_slab)
TASK_PFA_TEST(LMK_WAITING, lmk_waiting)
TASK_PFA_SET(LMK_WAITING, lmk_waiting)
-static inline void rcu_copy_process(struct task_struct *p)
-{
-#ifdef CONFIG_PREEMPT_RCU
- p->rcu_read_lock_nesting = 0;
- p->rcu_read_unlock_special.s = 0;
- p->rcu_blocked_node = NULL;
- INIT_LIST_HEAD(&p->rcu_node_entry);
-#endif /* #ifdef CONFIG_PREEMPT_RCU */
-#ifdef CONFIG_TASKS_RCU
- p->rcu_tasks_holdout = false;
- INIT_LIST_HEAD(&p->rcu_tasks_holdout_list);
- p->rcu_tasks_idle_cpu = -1;
-#endif /* #ifdef CONFIG_TASKS_RCU */
-}
-
static inline void tsk_restore_flags(struct task_struct *task,
unsigned long orig_flags, unsigned long flags)
{
@@ -1566,45 +1513,11 @@ extern void wake_up_new_task(struct task_struct *tsk);
#else
static inline void kick_process(struct task_struct *tsk) { }
#endif
-extern int sched_fork(unsigned long clone_flags, struct task_struct *p);
-extern void sched_dead(struct task_struct *p);
-
-extern void proc_caches_init(void);
-
-extern void release_task(struct task_struct * p);
-
-#ifdef CONFIG_HAVE_COPY_THREAD_TLS
-extern int copy_thread_tls(unsigned long, unsigned long, unsigned long,
- struct task_struct *, unsigned long);
-#else
-extern int copy_thread(unsigned long, unsigned long, unsigned long,
- struct task_struct *);
-
-/* Architectures that haven't opted into copy_thread_tls get the tls argument
- * via pt_regs, so ignore the tls argument passed via C. */
-static inline int copy_thread_tls(
- unsigned long clone_flags, unsigned long sp, unsigned long arg,
- struct task_struct *p, unsigned long tls)
-{
- return copy_thread(clone_flags, sp, arg, p);
-}
-#endif
-extern void flush_thread(void);
-
-#ifdef CONFIG_HAVE_EXIT_THREAD
-extern void exit_thread(struct task_struct *tsk);
-#else
-static inline void exit_thread(struct task_struct *tsk)
-{
-}
-#endif
extern void exit_files(struct task_struct *);
extern void exit_itimers(struct signal_struct *);
-extern void do_group_exit(int);
-
extern int do_execve(struct filename *,
const char __user * const __user *,
const char __user * const __user *);
@@ -1612,10 +1525,6 @@ extern int do_execveat(int, struct filename *,
const char __user * const __user *,
const char __user * const __user *,
int);
-extern long _do_fork(unsigned long, unsigned long, unsigned long, int __user *, int __user *, unsigned long);
-extern long do_fork(unsigned long, unsigned long, unsigned long, int __user *, int __user *);
-struct task_struct *fork_idle(int);
-extern pid_t kernel_thread(int (*fn)(void *), void *arg, unsigned long flags);
extern void __set_task_comm(struct task_struct *tsk, const char *from, bool exec);
static inline void set_task_comm(struct task_struct *tsk, const char *from)
diff --git a/include/linux/sched/task.h b/include/linux/sched/task.h
new file mode 100644
index 000000000000..e93638a03515
--- /dev/null
+++ b/include/linux/sched/task.h
@@ -0,0 +1,103 @@
+#ifndef _LINUX_SCHED_TASK_H
+#define _LINUX_SCHED_TASK_H
+
+/*
+ * Interface between the scheduler and various task lifetime (fork()/exit())
+ * functionality:
+ */
+
+#include <linux/sched.h>
+
+/*
+ * This serializes "schedule()" and also protects
+ * the run-queue from deletions/modifications (but
+ * _adding_ to the beginning of the run-queue has
+ * a separate lock).
+ */
+extern rwlock_t tasklist_lock;
+extern spinlock_t mmlist_lock;
+
+#ifdef CONFIG_PROVE_RCU
+extern int lockdep_tasklist_lock_is_held(void);
+#endif /* #ifdef CONFIG_PROVE_RCU */
+
+extern asmlinkage void schedule_tail(struct task_struct *prev);
+extern void init_idle(struct task_struct *idle, int cpu);
+extern void init_idle_bootup_task(struct task_struct *idle);
+
+static inline void rcu_copy_process(struct task_struct *p)
+{
+#ifdef CONFIG_PREEMPT_RCU
+ p->rcu_read_lock_nesting = 0;
+ p->rcu_read_unlock_special.s = 0;
+ p->rcu_blocked_node = NULL;
+ INIT_LIST_HEAD(&p->rcu_node_entry);
+#endif /* #ifdef CONFIG_PREEMPT_RCU */
+#ifdef CONFIG_TASKS_RCU
+ p->rcu_tasks_holdout = false;
+ INIT_LIST_HEAD(&p->rcu_tasks_holdout_list);
+ p->rcu_tasks_idle_cpu = -1;
+#endif /* #ifdef CONFIG_TASKS_RCU */
+}
+
+extern int sched_fork(unsigned long clone_flags, struct task_struct *p);
+extern void sched_dead(struct task_struct *p);
+
+void __noreturn do_task_dead(void);
+
+extern void proc_caches_init(void);
+
+extern void release_task(struct task_struct * p);
+
+#ifdef CONFIG_HAVE_COPY_THREAD_TLS
+extern int copy_thread_tls(unsigned long, unsigned long, unsigned long,
+ struct task_struct *, unsigned long);
+#else
+extern int copy_thread(unsigned long, unsigned long, unsigned long,
+ struct task_struct *);
+
+/* Architectures that haven't opted into copy_thread_tls get the tls argument
+ * via pt_regs, so ignore the tls argument passed via C. */
+static inline int copy_thread_tls(
+ unsigned long clone_flags, unsigned long sp, unsigned long arg,
+ struct task_struct *p, unsigned long tls)
+{
+ return copy_thread(clone_flags, sp, arg, p);
+}
+#endif
+extern void flush_thread(void);
+
+#ifdef CONFIG_HAVE_EXIT_THREAD
+extern void exit_thread(struct task_struct *tsk);
+#else
+static inline void exit_thread(struct task_struct *tsk)
+{
+}
+#endif
+extern void do_group_exit(int);
+
+extern long _do_fork(unsigned long, unsigned long, unsigned long, int __user *, int __user *, unsigned long);
+extern long do_fork(unsigned long, unsigned long, unsigned long, int __user *, int __user *);
+struct task_struct *fork_idle(int);
+extern pid_t kernel_thread(int (*fn)(void *), void *arg, unsigned long flags);
+
+
+#ifdef CONFIG_ARCH_WANTS_DYNAMIC_TASK_STRUCT
+extern int arch_task_struct_size __read_mostly;
+#else
+# define arch_task_struct_size (sizeof(struct task_struct))
+#endif
+
+#ifdef CONFIG_VMAP_STACK
+static inline struct vm_struct *task_stack_vm_area(const struct task_struct *t)
+{
+ return t->stack_vm_area;
+}
+#else
+static inline struct vm_struct *task_stack_vm_area(const struct task_struct *t)
+{
+ return NULL;
+}
+#endif
+
+#endif /* _LINUX_SCHED_TASK_H */
diff --git a/init/main.c b/init/main.c
index 148ce7162486..642a9b2cded7 100644
--- a/init/main.c
+++ b/init/main.c
@@ -76,6 +76,7 @@
#include <linux/blkdev.h>
#include <linux/elevator.h>
#include <linux/sched_clock.h>
+#include <linux/sched/task.h>
#include <linux/context_tracking.h>
#include <linux/random.h>
#include <linux/list.h>
diff --git a/kernel/cgroup.c b/kernel/cgroup.c
index 688dd02af985..0e09c705b6f9 100644
--- a/kernel/cgroup.c
+++ b/kernel/cgroup.c
@@ -43,6 +43,7 @@
#include <linux/proc_fs.h>
#include <linux/rcupdate.h>
#include <linux/sched.h>
+#include <linux/sched/task.h>
#include <linux/slab.h>
#include <linux/spinlock.h>
#include <linux/percpu-rwsem.h>
diff --git a/kernel/cpu.c b/kernel/cpu.c
index 78c206579d01..f7c063239fa5 100644
--- a/kernel/cpu.c
+++ b/kernel/cpu.c
@@ -9,6 +9,7 @@
#include <linux/notifier.h>
#include <linux/sched/signal.h>
#include <linux/sched/hotplug.h>
+#include <linux/sched/task.h>
#include <linux/unistd.h>
#include <linux/cpu.h>
#include <linux/oom.h>
diff --git a/kernel/exit.c b/kernel/exit.c
index b80fda6a62b9..5f192918fa5c 100644
--- a/kernel/exit.c
+++ b/kernel/exit.c
@@ -9,6 +9,7 @@
#include <linux/sched/autogroup.h>
#include <linux/sched/mm.h>
#include <linux/sched/stat.h>
+#include <linux/sched/task.h>
#include <linux/interrupt.h>
#include <linux/module.h>
#include <linux/capability.h>
diff --git a/kernel/fork.c b/kernel/fork.c
index 4dd6eae255c1..63f2e6e693fa 100644
--- a/kernel/fork.c
+++ b/kernel/fork.c
@@ -18,6 +18,7 @@
#include <linux/sched/user.h>
#include <linux/sched/numa_balancing.h>
#include <linux/sched/stat.h>
+#include <linux/sched/task.h>
#include <linux/rtmutex.h>
#include <linux/init.h>
#include <linux/unistd.h>
diff --git a/kernel/kmod.c b/kernel/kmod.c
index d45c96073afb..3cf3750e9d39 100644
--- a/kernel/kmod.c
+++ b/kernel/kmod.c
@@ -20,6 +20,7 @@
*/
#include <linux/module.h>
#include <linux/sched.h>
+#include <linux/sched/task.h>
#include <linux/syscalls.h>
#include <linux/unistd.h>
#include <linux/kmod.h>
diff --git a/kernel/kthread.c b/kernel/kthread.c
index 220b81b860cd..d82f4e7588bb 100644
--- a/kernel/kthread.c
+++ b/kernel/kthread.c
@@ -7,6 +7,7 @@
*/
#include <uapi/linux/sched/types.h>
#include <linux/sched.h>
+#include <linux/sched/task.h>
#include <linux/kthread.h>
#include <linux/completion.h>
#include <linux/err.h>
diff --git a/kernel/locking/lockdep.c b/kernel/locking/lockdep.c
index 7c8baac9c6d3..a22762a5f839 100644
--- a/kernel/locking/lockdep.c
+++ b/kernel/locking/lockdep.c
@@ -29,6 +29,7 @@
#include <linux/mutex.h>
#include <linux/sched.h>
#include <linux/sched/clock.h>
+#include <linux/sched/task.h>
#include <linux/delay.h>
#include <linux/module.h>
#include <linux/proc_fs.h>
diff --git a/kernel/pid.c b/kernel/pid.c
index 0291804151b5..0143ac0ddceb 100644
--- a/kernel/pid.c
+++ b/kernel/pid.c
@@ -38,6 +38,7 @@
#include <linux/syscalls.h>
#include <linux/proc_ns.h>
#include <linux/proc_fs.h>
+#include <linux/sched/task.h>
#define pid_hashfn(nr, ns) \
hash_long((unsigned long)nr + (unsigned long)ns, pidhash_shift)
diff --git a/kernel/pid_namespace.c b/kernel/pid_namespace.c
index 25314c96fbe6..7c8367854dc4 100644
--- a/kernel/pid_namespace.c
+++ b/kernel/pid_namespace.c
@@ -19,6 +19,7 @@
#include <linux/proc_ns.h>
#include <linux/reboot.h>
#include <linux/export.h>
+#include <linux/sched/task.h>
struct pid_cache {
int nr_ids;
diff --git a/kernel/power/process.c b/kernel/power/process.c
index 85e2915d8961..c7209f060eeb 100644
--- a/kernel/power/process.c
+++ b/kernel/power/process.c
@@ -13,6 +13,7 @@
#include <linux/suspend.h>
#include <linux/module.h>
#include <linux/sched/debug.h>
+#include <linux/sched/task.h>
#include <linux/syscalls.h>
#include <linux/freezer.h>
#include <linux/delay.h>
diff --git a/kernel/ptrace.c b/kernel/ptrace.c
index bcdbdc19eb35..0af928712174 100644
--- a/kernel/ptrace.c
+++ b/kernel/ptrace.c
@@ -12,6 +12,7 @@
#include <linux/sched.h>
#include <linux/sched/mm.h>
#include <linux/sched/coredump.h>
+#include <linux/sched/task.h>
#include <linux/errno.h>
#include <linux/mm.h>
#include <linux/highmem.h>
diff --git a/kernel/sched/sched.h b/kernel/sched/sched.h
index 0974eb2ef50d..6b7155ae5c33 100644
--- a/kernel/sched/sched.h
+++ b/kernel/sched/sched.h
@@ -14,6 +14,7 @@
#include <linux/sched/nohz.h>
#include <linux/sched/debug.h>
#include <linux/sched/hotplug.h>
+#include <linux/sched/task.h>
#include <linux/u64_stats_sync.h>
#include <linux/kernel_stat.h>
diff --git a/kernel/signal.c b/kernel/signal.c
index cdeb612357fd..55310cf15e6f 100644
--- a/kernel/signal.c
+++ b/kernel/signal.c
@@ -16,6 +16,7 @@
#include <linux/sched.h>
#include <linux/sched/user.h>
#include <linux/sched/debug.h>
+#include <linux/sched/task.h>
#include <linux/fs.h>
#include <linux/tty.h>
#include <linux/binfmts.h>
diff --git a/kernel/smpboot.c b/kernel/smpboot.c
index 4a5c6e73ecd4..1d71c051a951 100644
--- a/kernel/smpboot.c
+++ b/kernel/smpboot.c
@@ -9,6 +9,7 @@
#include <linux/list.h>
#include <linux/slab.h>
#include <linux/sched.h>
+#include <linux/sched/task.h>
#include <linux/export.h>
#include <linux/percpu.h>
#include <linux/kthread.h>
diff --git a/kernel/sys.c b/kernel/sys.c
index 259d634fc88c..dbe694c23daf 100644
--- a/kernel/sys.c
+++ b/kernel/sys.c
@@ -54,6 +54,7 @@
#include <linux/sched/stat.h>
#include <linux/sched/mm.h>
#include <linux/sched/coredump.h>
+#include <linux/sched/task.h>
#include <linux/rcupdate.h>
#include <linux/uidgid.h>
#include <linux/cred.h>
diff --git a/kernel/trace/ftrace.c b/kernel/trace/ftrace.c
index eb230f06ba41..23d10e5b8a62 100644
--- a/kernel/trace/ftrace.c
+++ b/kernel/trace/ftrace.c
@@ -15,6 +15,7 @@
#include <linux/stop_machine.h>
#include <linux/clocksource.h>
+#include <linux/sched/task.h>
#include <linux/kallsyms.h>
#include <linux/seq_file.h>
#include <linux/suspend.h>
diff --git a/kernel/tracepoint.c b/kernel/tracepoint.c
index 9f6984d52fec..685c50ae6300 100644
--- a/kernel/tracepoint.c
+++ b/kernel/tracepoint.c
@@ -25,6 +25,7 @@
#include <linux/err.h>
#include <linux/slab.h>
#include <linux/sched/signal.h>
+#include <linux/sched/task.h>
#include <linux/static_key.h>
extern struct tracepoint * const __start___tracepoints_ptrs[];
diff --git a/lib/dma-debug.c b/lib/dma-debug.c
index 8971370bfb16..ede0ea87ea59 100644
--- a/lib/dma-debug.c
+++ b/lib/dma-debug.c
@@ -19,6 +19,7 @@
#include <linux/scatterlist.h>
#include <linux/dma-mapping.h>
+#include <linux/sched/task.h>
#include <linux/stacktrace.h>
#include <linux/dma-debug.h>
#include <linux/spinlock.h>
diff --git a/mm/kmemleak.c b/mm/kmemleak.c
index 2df6d3687b2a..a3970573359e 100644
--- a/mm/kmemleak.c
+++ b/mm/kmemleak.c
@@ -74,6 +74,7 @@
#include <linux/kernel.h>
#include <linux/list.h>
#include <linux/sched/signal.h>
+#include <linux/sched/task.h>
#include <linux/jiffies.h>
#include <linux/delay.h>
#include <linux/export.h>
diff --git a/mm/memory-failure.c b/mm/memory-failure.c
index ab9f24730aa0..0a515f3d2714 100644
--- a/mm/memory-failure.c
+++ b/mm/memory-failure.c
@@ -41,6 +41,7 @@
#include <linux/page-flags.h>
#include <linux/kernel-page-flags.h>
#include <linux/sched/signal.h>
+#include <linux/sched/task.h>
#include <linux/ksm.h>
#include <linux/rmap.h>
#include <linux/export.h>
diff --git a/mm/memory.c b/mm/memory.c
index ac1f5b93e268..8a6c21e9d5f5 100644
--- a/mm/memory.c
+++ b/mm/memory.c
@@ -43,6 +43,7 @@
#include <linux/sched/mm.h>
#include <linux/sched/coredump.h>
#include <linux/sched/numa_balancing.h>
+#include <linux/sched/task.h>
#include <linux/hugetlb.h>
#include <linux/mman.h>
#include <linux/swap.h>
diff --git a/mm/oom_kill.c b/mm/oom_kill.c
index 4c75d87613f7..c976c6773db8 100644
--- a/mm/oom_kill.c
+++ b/mm/oom_kill.c
@@ -24,6 +24,7 @@
#include <linux/sched.h>
#include <linux/sched/mm.h>
#include <linux/sched/coredump.h>
+#include <linux/sched/task.h>
#include <linux/swap.h>
#include <linux/timex.h>
#include <linux/jiffies.h>
diff --git a/mm/rmap.c b/mm/rmap.c
index c66cfaa9af36..9e3c2dc569fc 100644
--- a/mm/rmap.c
+++ b/mm/rmap.c
@@ -47,6 +47,7 @@
#include <linux/mm.h>
#include <linux/sched/mm.h>
+#include <linux/sched/task.h>
#include <linux/pagemap.h>
#include <linux/swap.h>
#include <linux/swapops.h>
diff --git a/mm/swapfile.c b/mm/swapfile.c
index 89faf0a26bd9..a7e8141e3cc2 100644
--- a/mm/swapfile.c
+++ b/mm/swapfile.c
@@ -7,6 +7,7 @@
#include <linux/mm.h>
#include <linux/sched/mm.h>
+#include <linux/sched/task.h>
#include <linux/hugetlb.h>
#include <linux/mman.h>
#include <linux/slab.h>
diff --git a/mm/usercopy.c b/mm/usercopy.c
index 35685a236e34..2ce59b236d23 100644
--- a/mm/usercopy.c
+++ b/mm/usercopy.c
@@ -17,6 +17,11 @@
#include <linux/mm.h>
#include <linux/slab.h>
#include <linux/sched.h>
+<<<<<<< HEAD
+=======
+#include <linux/sched/task.h>
+#include <linux/sched/task_stack.h>
+>>>>>>> 9ecfbdbd2d46... fork.h fixes
#include <asm/sections.h>
enum {
diff --git a/security/keys/keyctl.c b/security/keys/keyctl.c
index bcb0b597c391..52c34532c785 100644
--- a/security/keys/keyctl.c
+++ b/security/keys/keyctl.c
@@ -12,6 +12,7 @@
#include <linux/module.h>
#include <linux/init.h>
#include <linux/sched.h>
+#include <linux/sched/task.h>
#include <linux/slab.h>
#include <linux/syscalls.h>
#include <linux/key.h>
diff --git a/security/selinux/hooks.c b/security/selinux/hooks.c
index cc06e95025ba..0a6ed844870e 100644
--- a/security/selinux/hooks.c
+++ b/security/selinux/hooks.c
@@ -29,6 +29,7 @@
#include <linux/tracehook.h>
#include <linux/errno.h>
#include <linux/sched/signal.h>
+#include <linux/sched/task.h>
#include <linux/lsm_hooks.h>
#include <linux/xattr.h>
#include <linux/capability.h>
--
2.7.4
^ permalink raw reply related [flat|nested] 119+ messages in thread
* [PATCH 53/89] sched/headers: Simplify <linux/sched/task.h> dependencies
2017-02-06 13:28 [PATCH 00/89] Major reorganization of <linux/sched.h> Ingo Molnar
` (51 preceding siblings ...)
2017-02-06 13:28 ` [PATCH 52/89] sched/headers: Split <linux/sched/task.h> out of <linux/sched.h> Ingo Molnar
@ 2017-02-06 13:28 ` Ingo Molnar
2017-02-06 13:28 ` [PATCH 54/89] sched/headers: Make the include/linux/sched/*.h headers build standalone Ingo Molnar
` (37 subsequent siblings)
90 siblings, 0 replies; 119+ messages in thread
From: Ingo Molnar @ 2017-02-06 13:28 UTC (permalink / raw)
To: linux-kernel
Cc: Andrew Morton, Linus Torvalds, Mike Galbraith, Oleg Nesterov,
Peter Zijlstra, Thomas Gleixner
Move rcu_copy_process() into kernel/fork.c, which is the only
user of this inline function.
This simplifies <linux/sched/task.h> to the level that <linux/sched.h>
does not have to be included in it anymore.
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
arch/mips/include/asm/processor.h | 1 -
include/linux/sched/task.h | 21 ++++-----------------
kernel/fork.c | 15 +++++++++++++++
3 files changed, 19 insertions(+), 18 deletions(-)
diff --git a/arch/mips/include/asm/processor.h b/arch/mips/include/asm/processor.h
index 461734dea839..95b8c471f572 100644
--- a/arch/mips/include/asm/processor.h
+++ b/arch/mips/include/asm/processor.h
@@ -14,7 +14,6 @@
#include <linux/atomic.h>
#include <linux/cpumask.h>
#include <linux/threads.h>
-#include <linux/sched/task.h>
#include <asm/cachectl.h>
#include <asm/cpu.h>
diff --git a/include/linux/sched/task.h b/include/linux/sched/task.h
index e93638a03515..5cdb7ee3978b 100644
--- a/include/linux/sched/task.h
+++ b/include/linux/sched/task.h
@@ -1,13 +1,15 @@
#ifndef _LINUX_SCHED_TASK_H
#define _LINUX_SCHED_TASK_H
+#include <linux/spinlock.h>
+
+struct task_struct;
+
/*
* Interface between the scheduler and various task lifetime (fork()/exit())
* functionality:
*/
-#include <linux/sched.h>
-
/*
* This serializes "schedule()" and also protects
* the run-queue from deletions/modifications (but
@@ -25,21 +27,6 @@ extern asmlinkage void schedule_tail(struct task_struct *prev);
extern void init_idle(struct task_struct *idle, int cpu);
extern void init_idle_bootup_task(struct task_struct *idle);
-static inline void rcu_copy_process(struct task_struct *p)
-{
-#ifdef CONFIG_PREEMPT_RCU
- p->rcu_read_lock_nesting = 0;
- p->rcu_read_unlock_special.s = 0;
- p->rcu_blocked_node = NULL;
- INIT_LIST_HEAD(&p->rcu_node_entry);
-#endif /* #ifdef CONFIG_PREEMPT_RCU */
-#ifdef CONFIG_TASKS_RCU
- p->rcu_tasks_holdout = false;
- INIT_LIST_HEAD(&p->rcu_tasks_holdout_list);
- p->rcu_tasks_idle_cpu = -1;
-#endif /* #ifdef CONFIG_TASKS_RCU */
-}
-
extern int sched_fork(unsigned long clone_flags, struct task_struct *p);
extern void sched_dead(struct task_struct *p);
diff --git a/kernel/fork.c b/kernel/fork.c
index 63f2e6e693fa..d5802d7e9bdb 100644
--- a/kernel/fork.c
+++ b/kernel/fork.c
@@ -1462,6 +1462,21 @@ init_task_pid(struct task_struct *task, enum pid_type type, struct pid *pid)
task->pids[type].pid = pid;
}
+static inline void rcu_copy_process(struct task_struct *p)
+{
+#ifdef CONFIG_PREEMPT_RCU
+ p->rcu_read_lock_nesting = 0;
+ p->rcu_read_unlock_special.s = 0;
+ p->rcu_blocked_node = NULL;
+ INIT_LIST_HEAD(&p->rcu_node_entry);
+#endif /* #ifdef CONFIG_PREEMPT_RCU */
+#ifdef CONFIG_TASKS_RCU
+ p->rcu_tasks_holdout = false;
+ INIT_LIST_HEAD(&p->rcu_tasks_holdout_list);
+ p->rcu_tasks_idle_cpu = -1;
+#endif /* #ifdef CONFIG_TASKS_RCU */
+}
+
/*
* This creates a new process as a copy of the old one,
* but does not actually start it yet.
--
2.7.4
^ permalink raw reply related [flat|nested] 119+ messages in thread
* [PATCH 54/89] sched/headers: Make the include/linux/sched/*.h headers build standalone
2017-02-06 13:28 [PATCH 00/89] Major reorganization of <linux/sched.h> Ingo Molnar
` (52 preceding siblings ...)
2017-02-06 13:28 ` [PATCH 53/89] sched/headers: Simplify <linux/sched/task.h> dependencies Ingo Molnar
@ 2017-02-06 13:28 ` Ingo Molnar
2017-02-06 13:28 ` [PATCH 55/89] sched/core: Clean up <linux/sched.h> structure predeclarations and remove stale entries Ingo Molnar
` (36 subsequent siblings)
90 siblings, 0 replies; 119+ messages in thread
From: Ingo Molnar @ 2017-02-06 13:28 UTC (permalink / raw)
To: linux-kernel
Cc: Andrew Morton, Linus Torvalds, Mike Galbraith, Oleg Nesterov,
Peter Zijlstra, Thomas Gleixner
Make each header self-sufficient, so that it can be built successfully
both in an allnoconfig and allyesconfig kernel.
Also standardize the naming of their header guards.
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
include/linux/sched/autogroup.h | 1 +
include/linux/sched/clock.h | 2 ++
include/linux/sched/cpufreq.h | 2 ++
include/linux/sched/deadline.h | 8 +++++---
include/linux/sched/idle.h | 2 ++
include/linux/sched/jobctl.h | 4 ++++
include/linux/sched/prio.h | 6 +++---
include/linux/sched/rt.h | 10 ++++++----
include/linux/sched/stat.h | 2 ++
include/linux/sched/sysctl.h | 10 +++++++---
include/linux/sched/user.h | 1 +
include/linux/sched/wake_q.h | 3 +++
12 files changed, 38 insertions(+), 13 deletions(-)
diff --git a/include/linux/sched/autogroup.h b/include/linux/sched/autogroup.h
index d4dc91da7479..c0810fe196f4 100644
--- a/include/linux/sched/autogroup.h
+++ b/include/linux/sched/autogroup.h
@@ -2,6 +2,7 @@
#define _LINUX_SCHED_AUTOGROUP_H
struct signal_struct;
+struct task_struct;
struct seq_file;
#ifdef CONFIG_SCHED_AUTOGROUP
diff --git a/include/linux/sched/clock.h b/include/linux/sched/clock.h
index 18677fc2ffb3..4a68c6791207 100644
--- a/include/linux/sched/clock.h
+++ b/include/linux/sched/clock.h
@@ -1,6 +1,8 @@
#ifndef _LINUX_SCHED_CLOCK_H
#define _LINUX_SCHED_CLOCK_H
+#include <linux/smp.h>
+
/*
* Do not use outside of architecture code which knows its limitations.
*
diff --git a/include/linux/sched/cpufreq.h b/include/linux/sched/cpufreq.h
index 9b846476d812..d2be2ccbb372 100644
--- a/include/linux/sched/cpufreq.h
+++ b/include/linux/sched/cpufreq.h
@@ -1,6 +1,8 @@
#ifndef _LINUX_SCHED_CPUFREQ_H
#define _LINUX_SCHED_CPUFREQ_H
+#include <linux/types.h>
+
/*
* Interface between cpufreq drivers and the scheduler:
*/
diff --git a/include/linux/sched/deadline.h b/include/linux/sched/deadline.h
index 9089a2ae913d..975be862e083 100644
--- a/include/linux/sched/deadline.h
+++ b/include/linux/sched/deadline.h
@@ -1,5 +1,7 @@
-#ifndef _SCHED_DEADLINE_H
-#define _SCHED_DEADLINE_H
+#ifndef _LINUX_SCHED_DEADLINE_H
+#define _LINUX_SCHED_DEADLINE_H
+
+#include <linux/sched.h>
/*
* SCHED_DEADLINE tasks has negative priorities, reflecting
@@ -26,4 +28,4 @@ static inline bool dl_time_before(u64 a, u64 b)
return (s64)(a - b) < 0;
}
-#endif /* _SCHED_DEADLINE_H */
+#endif /* _LINUX_SCHED_DEADLINE_H */
diff --git a/include/linux/sched/idle.h b/include/linux/sched/idle.h
index dabd62394af4..5ca63ebad6b4 100644
--- a/include/linux/sched/idle.h
+++ b/include/linux/sched/idle.h
@@ -1,6 +1,8 @@
#ifndef _LINUX_SCHED_IDLE_H
#define _LINUX_SCHED_IDLE_H
+#include <linux/sched.h>
+
enum cpu_idle_type {
CPU_IDLE,
CPU_NOT_IDLE,
diff --git a/include/linux/sched/jobctl.h b/include/linux/sched/jobctl.h
index d8cbf44fe16b..016afa0fb3bb 100644
--- a/include/linux/sched/jobctl.h
+++ b/include/linux/sched/jobctl.h
@@ -1,6 +1,10 @@
#ifndef _LINUX_SCHED_JOBCTL_H
#define _LINUX_SCHED_JOBCTL_H
+#include <linux/types.h>
+
+struct task_struct;
+
/*
* task->jobctl flags
*/
diff --git a/include/linux/sched/prio.h b/include/linux/sched/prio.h
index d9cf5a5762d9..2cc450f6ec54 100644
--- a/include/linux/sched/prio.h
+++ b/include/linux/sched/prio.h
@@ -1,5 +1,5 @@
-#ifndef _SCHED_PRIO_H
-#define _SCHED_PRIO_H
+#ifndef _LINUX_SCHED_PRIO_H
+#define _LINUX_SCHED_PRIO_H
#define MAX_NICE 19
#define MIN_NICE -20
@@ -57,4 +57,4 @@ static inline long rlimit_to_nice(long prio)
return (MAX_NICE - prio + 1);
}
-#endif /* _SCHED_PRIO_H */
+#endif /* _LINUX_SCHED_PRIO_H */
diff --git a/include/linux/sched/rt.h b/include/linux/sched/rt.h
index a30b172df6e1..3bd668414f61 100644
--- a/include/linux/sched/rt.h
+++ b/include/linux/sched/rt.h
@@ -1,7 +1,9 @@
-#ifndef _SCHED_RT_H
-#define _SCHED_RT_H
+#ifndef _LINUX_SCHED_RT_H
+#define _LINUX_SCHED_RT_H
-#include <linux/sched/prio.h>
+#include <linux/sched.h>
+
+struct task_struct;
static inline int rt_prio(int prio)
{
@@ -57,4 +59,4 @@ extern void normalize_rt_tasks(void);
*/
#define RR_TIMESLICE (100 * HZ / 1000)
-#endif /* _SCHED_RT_H */
+#endif /* _LINUX_SCHED_RT_H */
diff --git a/include/linux/sched/stat.h b/include/linux/sched/stat.h
index 1a1df11d1d70..851bc8639620 100644
--- a/include/linux/sched/stat.h
+++ b/include/linux/sched/stat.h
@@ -1,6 +1,8 @@
#ifndef _LINUX_SCHED_STAT_H
#define _LINUX_SCHED_STAT_H
+#include <linux/percpu.h>
+
/*
* Various counters maintained by the scheduler and fork(),
* exposed via /proc, sys.c or used by drivers via these APIs.
diff --git a/include/linux/sched/sysctl.h b/include/linux/sched/sysctl.h
index 49308e142aae..0f5ecd4d298e 100644
--- a/include/linux/sched/sysctl.h
+++ b/include/linux/sched/sysctl.h
@@ -1,5 +1,9 @@
-#ifndef _SCHED_SYSCTL_H
-#define _SCHED_SYSCTL_H
+#ifndef _LINUX_SCHED_SYSCTL_H
+#define _LINUX_SCHED_SYSCTL_H
+
+#include <linux/types.h>
+
+struct ctl_table;
#ifdef CONFIG_DETECT_HUNG_TASK
extern int sysctl_hung_task_check_count;
@@ -78,4 +82,4 @@ extern int sysctl_schedstats(struct ctl_table *table, int write,
void __user *buffer, size_t *lenp,
loff_t *ppos);
-#endif /* _SCHED_SYSCTL_H */
+#endif /* _LINUX_SCHED_SYSCTL_H */
diff --git a/include/linux/sched/user.h b/include/linux/sched/user.h
index 7b615b61a0dc..47600dd62ded 100644
--- a/include/linux/sched/user.h
+++ b/include/linux/sched/user.h
@@ -2,6 +2,7 @@
#define _LINUX_SCHED_USER_H
#include <linux/uidgid.h>
+#include <linux/atomic.h>
struct key;
diff --git a/include/linux/sched/wake_q.h b/include/linux/sched/wake_q.h
index 9a32f17b6a5e..e6774a0385fb 100644
--- a/include/linux/sched/wake_q.h
+++ b/include/linux/sched/wake_q.h
@@ -27,6 +27,9 @@
* must ensure the call is done inside a loop, confirming that the
* wakeup condition has in fact occurred.
*/
+
+struct task_struct;
+
struct wake_q_node {
struct wake_q_node *next;
};
--
2.7.4
^ permalink raw reply related [flat|nested] 119+ messages in thread
* [PATCH 55/89] sched/core: Clean up <linux/sched.h> structure predeclarations and remove stale entries
2017-02-06 13:28 [PATCH 00/89] Major reorganization of <linux/sched.h> Ingo Molnar
` (53 preceding siblings ...)
2017-02-06 13:28 ` [PATCH 54/89] sched/headers: Make the include/linux/sched/*.h headers build standalone Ingo Molnar
@ 2017-02-06 13:28 ` Ingo Molnar
2017-02-06 13:28 ` [PATCH 56/89] sched/headers: Move the PREEMPT_COUNT defines from <linux/sched.h> to <linux/preempt.h> Ingo Molnar
` (35 subsequent siblings)
90 siblings, 0 replies; 119+ messages in thread
From: Ingo Molnar @ 2017-02-06 13:28 UTC (permalink / raw)
To: linux-kernel
Cc: Andrew Morton, Linus Torvalds, Mike Galbraith, Oleg Nesterov,
Peter Zijlstra, Thomas Gleixner
Most of the structure predeclarations were at the head of sched.h, but not
all of them - there were a number of lines spread around sched.h, in
random places.
Move them to the head, and also sort them alphabetically.
Also, while at it:
- remove a stray #include <linux/rwsem.h>
- remove runqueue_is_locked() prototype, the function
does not exist anymore
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
include/linux/sched.h | 60 +++++++++++++++++++++++-------------------------------------
1 file changed, 23 insertions(+), 37 deletions(-)
diff --git a/include/linux/sched.h b/include/linux/sched.h
index b7ed84a2487f..def67d45a17f 100644
--- a/include/linux/sched.h
+++ b/include/linux/sched.h
@@ -25,24 +25,35 @@
#include <asm/current.h>
-struct sched_attr;
-struct sched_param;
-
-struct futex_pi_state;
-struct robust_list_head;
+/* task_struct member predeclarations: */
+struct audit_context;
+struct autogroup;
+struct backing_dev_info;
struct bio_list;
-struct fs_struct;
-struct perf_event_context;
struct blk_plug;
+struct cfs_rq;
struct filename;
+struct fs_struct;
+struct futex_pi_state;
+struct io_context;
+struct mempolicy;
struct nameidata;
-
-struct signal_struct;
-struct sighand_struct;
-
+struct nsproxy;
+struct perf_event_context;
+struct pid_namespace;
+struct pipe_inode_info;
+struct rcu_node;
+struct reclaim_state;
+struct robust_list_head;
+struct sched_attr;
+struct sched_param;
struct seq_file;
-struct cfs_rq;
+struct sighand_struct;
+struct signal_struct;
+struct task_delay_info;
struct task_group;
+struct task_struct;
+struct uts_namespace;
/*
* Task state bitmask. NOTE! These bits are also
@@ -157,15 +168,11 @@ struct task_group;
/* Task command name length */
#define TASK_COMM_LEN 16
-struct task_struct;
-
extern void sched_init(void);
extern void sched_init_smp(void);
extern cpumask_var_t cpu_isolated_map;
-extern int runqueue_is_locked(int cpu);
-
extern void cpu_init (void);
extern void trap_init(void);
extern void update_process_times(int user);
@@ -185,8 +192,6 @@ extern void io_schedule_finish(int token);
extern long io_schedule_timeout(long timeout);
extern void io_schedule(void);
-struct nsproxy;
-
/**
* struct prev_cputime - snaphsot of system and user cputime
* @utime: time spent in user mode
@@ -288,12 +293,6 @@ struct thread_group_cputimer {
bool checking_timer;
};
-#include <linux/rwsem.h>
-struct autogroup;
-
-struct backing_dev_info;
-struct reclaim_state;
-
#ifdef CONFIG_SCHED_INFO
struct sched_info {
/* cumulative counters */
@@ -306,8 +305,6 @@ struct sched_info {
};
#endif /* CONFIG_SCHED_INFO */
-struct task_delay_info;
-
static inline int sched_info_on(void)
{
#ifdef CONFIG_SCHEDSTATS
@@ -334,20 +331,12 @@ void force_schedstat_enabled(void);
# define SCHED_FIXEDPOINT_SHIFT 10
# define SCHED_FIXEDPOINT_SCALE (1L << SCHED_FIXEDPOINT_SHIFT)
-struct io_context; /* See blkdev.h */
-
-
#ifdef ARCH_HAS_PREFETCH_SWITCH_STACK
extern void prefetch_stack(struct task_struct *t);
#else
static inline void prefetch_stack(struct task_struct *t) { }
#endif
-struct audit_context; /* See audit.c */
-struct mempolicy;
-struct pipe_inode_info;
-struct uts_namespace;
-
struct load_weight {
unsigned long weight;
u32 inv_weight;
@@ -556,7 +545,6 @@ union rcu_special {
} b; /* Bits. */
u32 s; /* Set of bits. */
};
-struct rcu_node;
enum perf_event_task_context {
perf_invalid_context = -1,
@@ -1119,8 +1107,6 @@ static inline struct pid *task_session(struct task_struct *task)
return task->group_leader->pids[PIDTYPE_SID].pid;
}
-struct pid_namespace;
-
/*
* the helpers to get the task's different pids as they are seen
* from various namespaces
--
2.7.4
^ permalink raw reply related [flat|nested] 119+ messages in thread
* [PATCH 56/89] sched/headers: Move the PREEMPT_COUNT defines from <linux/sched.h> to <linux/preempt.h>
2017-02-06 13:28 [PATCH 00/89] Major reorganization of <linux/sched.h> Ingo Molnar
` (54 preceding siblings ...)
2017-02-06 13:28 ` [PATCH 55/89] sched/core: Clean up <linux/sched.h> structure predeclarations and remove stale entries Ingo Molnar
@ 2017-02-06 13:28 ` Ingo Molnar
2017-02-06 13:29 ` [PATCH 57/89] sched/headers: Split <linux/sched/task_stack> out of <linux/sched.h> Ingo Molnar
` (34 subsequent siblings)
90 siblings, 0 replies; 119+ messages in thread
From: Ingo Molnar @ 2017-02-06 13:28 UTC (permalink / raw)
To: linux-kernel
Cc: Andrew Morton, Linus Torvalds, Mike Galbraith, Oleg Nesterov,
Peter Zijlstra, Thomas Gleixner
These defines are not really part of the scheduler's driver API, but are
related to the preempt count - so move them to <linux/preempt.h>.
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
include/linux/preempt.h | 21 +++++++++++++++++++++
include/linux/sched.h | 21 ---------------------
2 files changed, 21 insertions(+), 21 deletions(-)
diff --git a/include/linux/preempt.h b/include/linux/preempt.h
index 7eeceac52dea..cae461224948 100644
--- a/include/linux/preempt.h
+++ b/include/linux/preempt.h
@@ -55,6 +55,27 @@
/* We use the MSB mostly because its available */
#define PREEMPT_NEED_RESCHED 0x80000000
+#define PREEMPT_DISABLED (PREEMPT_DISABLE_OFFSET + PREEMPT_ENABLED)
+
+/*
+ * Disable preemption until the scheduler is running -- use an unconditional
+ * value so that it also works on !PREEMPT_COUNT kernels.
+ *
+ * Reset by start_kernel()->sched_init()->init_idle()->init_idle_preempt_count().
+ */
+#define INIT_PREEMPT_COUNT PREEMPT_OFFSET
+
+/*
+ * Initial preempt_count value; reflects the preempt_count schedule invariant
+ * which states that during context switches:
+ *
+ * preempt_count() == 2*PREEMPT_DISABLE_OFFSET
+ *
+ * Note: PREEMPT_DISABLE_OFFSET is 0 for !PREEMPT_COUNT kernels.
+ * Note: See finish_task_switch().
+ */
+#define FORK_PREEMPT_COUNT (2*PREEMPT_DISABLE_OFFSET + PREEMPT_ENABLED)
+
/* preempt_count() and related functions, depends on PREEMPT_NEED_RESCHED */
#include <asm/preempt.h>
diff --git a/include/linux/sched.h b/include/linux/sched.h
index def67d45a17f..e2da415fdb48 100644
--- a/include/linux/sched.h
+++ b/include/linux/sched.h
@@ -255,27 +255,6 @@ struct task_cputime_atomic {
.sum_exec_runtime = ATOMIC64_INIT(0), \
}
-#define PREEMPT_DISABLED (PREEMPT_DISABLE_OFFSET + PREEMPT_ENABLED)
-
-/*
- * Disable preemption until the scheduler is running -- use an unconditional
- * value so that it also works on !PREEMPT_COUNT kernels.
- *
- * Reset by start_kernel()->sched_init()->init_idle()->init_idle_preempt_count().
- */
-#define INIT_PREEMPT_COUNT PREEMPT_OFFSET
-
-/*
- * Initial preempt_count value; reflects the preempt_count schedule invariant
- * which states that during context switches:
- *
- * preempt_count() == 2*PREEMPT_DISABLE_OFFSET
- *
- * Note: PREEMPT_DISABLE_OFFSET is 0 for !PREEMPT_COUNT kernels.
- * Note: See finish_task_switch().
- */
-#define FORK_PREEMPT_COUNT (2*PREEMPT_DISABLE_OFFSET + PREEMPT_ENABLED)
-
/**
* struct thread_group_cputimer - thread group interval timer counts
* @cputime_atomic: atomic thread group interval timers.
--
2.7.4
^ permalink raw reply related [flat|nested] 119+ messages in thread
* [PATCH 57/89] sched/headers: Split <linux/sched/task_stack> out of <linux/sched.h>
2017-02-06 13:28 [PATCH 00/89] Major reorganization of <linux/sched.h> Ingo Molnar
` (55 preceding siblings ...)
2017-02-06 13:28 ` [PATCH 56/89] sched/headers: Move the PREEMPT_COUNT defines from <linux/sched.h> to <linux/preempt.h> Ingo Molnar
@ 2017-02-06 13:29 ` Ingo Molnar
2017-02-06 21:21 ` Linus Torvalds
2017-02-06 13:29 ` [PATCH 58/89] sched/headers: Move the 'root_task_group' declaration to <linux/sched/autogroup.h> Ingo Molnar
` (33 subsequent siblings)
90 siblings, 1 reply; 119+ messages in thread
From: Ingo Molnar @ 2017-02-06 13:29 UTC (permalink / raw)
To: linux-kernel
Cc: Andrew Morton, Linus Torvalds, Mike Galbraith, Oleg Nesterov,
Peter Zijlstra, Thomas Gleixner
Split out the task->stack related functionality, which is not really
part of the core scheduler APIs.
Update the code that uses those facilities.
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
arch/alpha/kernel/osf_sys.c | 1 +
arch/alpha/kernel/process.c | 1 +
arch/alpha/kernel/ptrace.c | 1 +
arch/alpha/kernel/signal.c | 1 +
arch/arc/kernel/kgdb.c | 1 +
arch/arc/kernel/process.c | 1 +
arch/arc/kernel/ptrace.c | 1 +
arch/arc/kernel/signal.c | 2 +
arch/arm/kernel/perf_regs.c | 1 +
arch/arm/kernel/process.c | 1 +
arch/arm/kernel/ptrace.c | 1 +
arch/arm/kernel/smp.c | 1 +
arch/arm/kernel/traps.c | 1 +
arch/arm64/include/asm/compat.h | 1 +
arch/arm64/kernel/debug-monitors.c | 1 +
arch/arm64/kernel/kgdb.c | 2 +
arch/arm64/kernel/perf_regs.c | 1 +
arch/arm64/kernel/process.c | 1 +
arch/arm64/kernel/ptrace.c | 1 +
arch/arm64/kernel/smp.c | 1 +
arch/arm64/kernel/stacktrace.c | 1 +
arch/arm64/kernel/traps.c | 1 +
arch/avr32/kernel/process.c | 1 +
arch/avr32/kernel/ptrace.c | 1 +
arch/avr32/kernel/stacktrace.c | 1 +
arch/blackfin/kernel/process.c | 1 +
arch/blackfin/kernel/ptrace.c | 1 +
arch/blackfin/kernel/signal.c | 1 +
arch/blackfin/kernel/stacktrace.c | 1 +
arch/blackfin/mach-common/smp.c | 1 +
arch/c6x/kernel/process.c | 1 +
arch/c6x/kernel/ptrace.c | 1 +
arch/cris/arch-v10/kernel/process.c | 1 +
arch/cris/arch-v10/kernel/ptrace.c | 1 +
arch/cris/arch-v10/kernel/signal.c | 1 +
arch/cris/arch-v32/kernel/process.c | 1 +
arch/cris/arch-v32/kernel/ptrace.c | 1 +
arch/cris/arch-v32/kernel/signal.c | 1 +
arch/frv/kernel/process.c | 1 +
arch/h8300/kernel/process.c | 1 +
arch/h8300/kernel/signal.c | 1 +
arch/hexagon/kernel/kgdb.c | 1 +
arch/hexagon/kernel/process.c | 1 +
arch/hexagon/kernel/ptrace.c | 1 +
arch/hexagon/kernel/signal.c | 2 +
arch/hexagon/kernel/stacktrace.c | 1 +
arch/hexagon/kernel/traps.c | 1 +
arch/ia64/kernel/perfmon.c | 1 +
arch/ia64/kernel/process.c | 1 +
arch/ia64/kernel/ptrace.c | 1 +
arch/ia64/kernel/setup.c | 1 +
arch/ia64/kernel/sys_ia64.c | 1 +
arch/m32r/kernel/process.c | 1 +
arch/m32r/kernel/ptrace.c | 1 +
arch/m68k/kernel/process.c | 1 +
arch/m68k/kernel/ptrace.c | 1 +
arch/metag/kernel/process.c | 1 +
arch/metag/kernel/ptrace.c | 2 +
arch/metag/kernel/signal.c | 1 +
arch/metag/kernel/smp.c | 1 +
arch/metag/kernel/traps.c | 1 +
arch/microblaze/kernel/process.c | 1 +
arch/microblaze/kernel/ptrace.c | 1 +
arch/microblaze/kernel/unwind.c | 1 +
arch/mips/include/asm/fpu.h | 1 +
arch/mips/kernel/crash.c | 1 +
arch/mips/kernel/perf_event.c | 1 +
arch/mips/kernel/process.c | 1 +
arch/mips/kernel/ptrace.c | 1 +
arch/mips/kernel/ptrace32.c | 1 +
arch/mips/kernel/stacktrace.c | 1 +
arch/mips/kernel/syscall.c | 1 +
arch/mips/sibyte/bcm1480/smp.c | 1 +
arch/mn10300/kernel/process.c | 1 +
arch/mn10300/kernel/ptrace.c | 1 +
arch/nios2/kernel/process.c | 1 +
arch/nios2/kernel/ptrace.c | 1 +
arch/openrisc/kernel/process.c | 1 +
arch/openrisc/kernel/ptrace.c | 1 +
arch/parisc/kernel/process.c | 1 +
arch/powerpc/kernel/process.c | 1 +
arch/powerpc/mm/fault.c | 1 +
arch/powerpc/perf/perf_regs.c | 1 +
arch/s390/include/asm/compat.h | 1 +
arch/s390/include/asm/kprobes.h | 1 +
arch/s390/kernel/compat_signal.c | 1 +
arch/s390/kernel/dumpstack.c | 1 +
arch/s390/kernel/process.c | 1 +
arch/s390/kernel/ptrace.c | 1 +
arch/s390/kernel/runtime_instr.c | 2 +
arch/s390/kernel/signal.c | 1 +
arch/s390/kernel/smp.c | 1 +
arch/s390/kernel/uprobes.c | 2 +
arch/score/kernel/process.c | 1 +
arch/score/kernel/ptrace.c | 1 +
arch/sh/kernel/cpu/fpu.c | 1 +
arch/sh/kernel/dumpstack.c | 1 +
arch/sh/kernel/kgdb.c | 2 +
arch/sh/kernel/process.c | 1 +
arch/sh/kernel/process_32.c | 1 +
arch/sh/kernel/process_64.c | 1 +
arch/sh/kernel/ptrace_32.c | 1 +
arch/sh/kernel/ptrace_64.c | 1 +
arch/sh/kernel/signal_32.c | 1 +
arch/sh/kernel/sys_sh32.c | 1 +
arch/sh/kernel/traps.c | 1 +
arch/sh/kernel/traps_32.c | 2 +
arch/sparc/kernel/process_32.c | 1 +
arch/sparc/kernel/process_64.c | 1 +
arch/sparc/kernel/ptrace_64.c | 1 +
arch/tile/kernel/compat_signal.c | 1 +
arch/tile/kernel/kgdb.c | 2 +
arch/tile/kernel/process.c | 1 +
arch/tile/kernel/ptrace.c | 2 +
arch/tile/kernel/signal.c | 1 +
arch/tile/kernel/stack.c | 1 +
arch/tile/mm/fault.c | 3 --
arch/um/kernel/exec.c | 1 +
arch/um/kernel/process.c | 1 +
arch/um/kernel/skas/process.c | 1 +
arch/unicore32/kernel/process.c | 1 +
arch/unicore32/kernel/ptrace.c | 1 +
arch/unicore32/kernel/traps.c | 1 +
arch/x86/entry/common.c | 1 +
arch/x86/entry/vdso/vma.c | 1 +
arch/x86/ia32/ia32_aout.c | 1 +
arch/x86/ia32/ia32_signal.c | 1 +
arch/x86/kernel/dumpstack.c | 1 +
arch/x86/kernel/fpu/regset.c | 1 +
arch/x86/kernel/ioport.c | 1 +
arch/x86/kernel/irq_64.c | 1 +
arch/x86/kernel/perf_regs.c | 1 +
arch/x86/kernel/process.c | 1 +
arch/x86/kernel/process_32.c | 1 +
arch/x86/kernel/process_64.c | 1 +
arch/x86/kernel/ptrace.c | 1 +
arch/x86/kernel/signal.c | 1 +
arch/x86/kernel/smpboot.c | 1 +
arch/x86/kernel/stacktrace.c | 1 +
arch/x86/kernel/step.c | 1 +
arch/x86/kernel/traps.c | 1 +
arch/x86/kernel/unwind_frame.c | 1 +
arch/x86/kernel/vm86_32.c | 1 +
arch/x86/mm/fault.c | 1 +
arch/xtensa/kernel/process.c | 1 +
arch/xtensa/kernel/ptrace.c | 1 +
arch/xtensa/kernel/signal.c | 1 +
arch/xtensa/kernel/smp.c | 1 +
block/blk-map.c | 1 +
drivers/hv/vmbus_drv.c | 2 +
drivers/ide/ide-cd.c | 1 +
drivers/md/bcache/closure.h | 1 +
drivers/misc/lkdtm_usercopy.c | 1 +
drivers/mtd/nand/gpmi-nand/gpmi-nand.c | 1 +
fs/binfmt_aout.c | 1 +
fs/binfmt_elf.c | 1 +
fs/binfmt_elf_fdpic.c | 3 +-
fs/binfmt_flat.c | 1 +
fs/coredump.c | 1 +
include/linux/elfcore.h | 2 +
include/linux/perf_regs.h | 2 +
include/linux/sched.h | 115 +++++------------------------------------------------
include/linux/sched/task_stack.h | 110 ++++++++++++++++++++++++++++++++++++++++++++++++++
init/main.c | 1 +
kernel/events/callchain.c | 2 +
kernel/exit.c | 1 +
kernel/fork.c | 1 +
kernel/printk/printk.c | 1 +
kernel/sched/sched.h | 1 +
kernel/seccomp.c | 1 +
kernel/signal.c | 1 +
kernel/trace/trace_stack.c | 1 +
lib/debugobjects.c | 1 +
lib/dma-debug.c | 1 +
lib/syscall.c | 1 +
mm/kasan/kasan.c | 1 +
mm/kmemleak.c | 1 +
mm/usercopy.c | 3 --
mm/util.c | 1 +
179 files changed, 309 insertions(+), 113 deletions(-)
diff --git a/arch/alpha/kernel/osf_sys.c b/arch/alpha/kernel/osf_sys.c
index 3b9b2a382ba2..73446baa632e 100644
--- a/arch/alpha/kernel/osf_sys.c
+++ b/arch/alpha/kernel/osf_sys.c
@@ -13,6 +13,7 @@
#include <linux/errno.h>
#include <linux/sched/signal.h>
#include <linux/sched/mm.h>
+#include <linux/sched/task_stack.h>
#include <linux/kernel.h>
#include <linux/mm.h>
#include <linux/smp.h>
diff --git a/arch/alpha/kernel/process.c b/arch/alpha/kernel/process.c
index 713b4fac998e..0b9635040721 100644
--- a/arch/alpha/kernel/process.c
+++ b/arch/alpha/kernel/process.c
@@ -13,6 +13,7 @@
#include <linux/sched.h>
#include <linux/sched/debug.h>
#include <linux/sched/task.h>
+#include <linux/sched/task_stack.h>
#include <linux/kernel.h>
#include <linux/mm.h>
#include <linux/smp.h>
diff --git a/arch/alpha/kernel/ptrace.c b/arch/alpha/kernel/ptrace.c
index bc4d2cdcf21d..285a82d491ef 100644
--- a/arch/alpha/kernel/ptrace.c
+++ b/arch/alpha/kernel/ptrace.c
@@ -6,6 +6,7 @@
#include <linux/kernel.h>
#include <linux/sched.h>
+#include <linux/sched/task_stack.h>
#include <linux/mm.h>
#include <linux/smp.h>
#include <linux/errno.h>
diff --git a/arch/alpha/kernel/signal.c b/arch/alpha/kernel/signal.c
index b8221f112eee..8129dd92cadc 100644
--- a/arch/alpha/kernel/signal.c
+++ b/arch/alpha/kernel/signal.c
@@ -7,6 +7,7 @@
*/
#include <linux/sched/signal.h>
+#include <linux/sched/task_stack.h>
#include <linux/kernel.h>
#include <linux/signal.h>
#include <linux/errno.h>
diff --git a/arch/arc/kernel/kgdb.c b/arch/arc/kernel/kgdb.c
index ecf6a7869375..9a3c34af2ae8 100644
--- a/arch/arc/kernel/kgdb.c
+++ b/arch/arc/kernel/kgdb.c
@@ -10,6 +10,7 @@
#include <linux/kgdb.h>
#include <linux/sched.h>
+#include <linux/sched/task_stack.h>
#include <asm/disasm.h>
#include <asm/cacheflush.h>
diff --git a/arch/arc/kernel/process.c b/arch/arc/kernel/process.c
index d618d26721ab..2a018de6d6cd 100644
--- a/arch/arc/kernel/process.c
+++ b/arch/arc/kernel/process.c
@@ -12,6 +12,7 @@
#include <linux/module.h>
#include <linux/sched.h>
#include <linux/sched/task.h>
+#include <linux/sched/task_stack.h>
#include <linux/mm.h>
#include <linux/fs.h>
diff --git a/arch/arc/kernel/ptrace.c b/arch/arc/kernel/ptrace.c
index 4442204fe238..31150060d38b 100644
--- a/arch/arc/kernel/ptrace.c
+++ b/arch/arc/kernel/ptrace.c
@@ -8,6 +8,7 @@
#include <linux/ptrace.h>
#include <linux/tracehook.h>
+#include <linux/sched/task_stack.h>
#include <linux/regset.h>
#include <linux/unistd.h>
#include <linux/elf.h>
diff --git a/arch/arc/kernel/signal.c b/arch/arc/kernel/signal.c
index d347bbc086fe..48685445002e 100644
--- a/arch/arc/kernel/signal.c
+++ b/arch/arc/kernel/signal.c
@@ -53,6 +53,8 @@
#include <linux/uaccess.h>
#include <linux/syscalls.h>
#include <linux/tracehook.h>
+#include <linux/sched/task_stack.h>
+
#include <asm/ucontext.h>
struct rt_sigframe {
diff --git a/arch/arm/kernel/perf_regs.c b/arch/arm/kernel/perf_regs.c
index 592dda3f21ff..c366b83bf955 100644
--- a/arch/arm/kernel/perf_regs.c
+++ b/arch/arm/kernel/perf_regs.c
@@ -3,6 +3,7 @@
#include <linux/kernel.h>
#include <linux/perf_event.h>
#include <linux/bug.h>
+#include <linux/sched/task_stack.h>
#include <asm/perf_regs.h>
#include <asm/ptrace.h>
diff --git a/arch/arm/kernel/process.c b/arch/arm/kernel/process.c
index d4c7c9a1afa9..939e8b58c59d 100644
--- a/arch/arm/kernel/process.c
+++ b/arch/arm/kernel/process.c
@@ -14,6 +14,7 @@
#include <linux/sched.h>
#include <linux/sched/debug.h>
#include <linux/sched/task.h>
+#include <linux/sched/task_stack.h>
#include <linux/kernel.h>
#include <linux/mm.h>
#include <linux/stddef.h>
diff --git a/arch/arm/kernel/ptrace.c b/arch/arm/kernel/ptrace.c
index fa1b63aed27c..383f69515221 100644
--- a/arch/arm/kernel/ptrace.c
+++ b/arch/arm/kernel/ptrace.c
@@ -11,6 +11,7 @@
*/
#include <linux/kernel.h>
#include <linux/sched/signal.h>
+#include <linux/sched/task_stack.h>
#include <linux/mm.h>
#include <linux/elf.h>
#include <linux/smp.h>
diff --git a/arch/arm/kernel/smp.c b/arch/arm/kernel/smp.c
index cbad704bd8c8..3cc171c3d93f 100644
--- a/arch/arm/kernel/smp.c
+++ b/arch/arm/kernel/smp.c
@@ -13,6 +13,7 @@
#include <linux/spinlock.h>
#include <linux/sched.h>
#include <linux/sched/hotplug.h>
+#include <linux/sched/task_stack.h>
#include <linux/interrupt.h>
#include <linux/cache.h>
#include <linux/profile.h>
diff --git a/arch/arm/kernel/traps.c b/arch/arm/kernel/traps.c
index a9dad001b97d..948c648fea00 100644
--- a/arch/arm/kernel/traps.c
+++ b/arch/arm/kernel/traps.c
@@ -26,6 +26,7 @@
#include <linux/init.h>
#include <linux/sched/signal.h>
#include <linux/sched/debug.h>
+#include <linux/sched/task_stack.h>
#include <linux/irq.h>
#include <linux/atomic.h>
diff --git a/arch/arm64/include/asm/compat.h b/arch/arm64/include/asm/compat.h
index eb8432bb82b8..e39d487bf724 100644
--- a/arch/arm64/include/asm/compat.h
+++ b/arch/arm64/include/asm/compat.h
@@ -23,6 +23,7 @@
*/
#include <linux/types.h>
#include <linux/sched.h>
+#include <linux/sched/task_stack.h>
#define COMPAT_USER_HZ 100
#ifdef __AARCH64EB__
diff --git a/arch/arm64/kernel/debug-monitors.c b/arch/arm64/kernel/debug-monitors.c
index 2bd426448fc1..32913567da08 100644
--- a/arch/arm64/kernel/debug-monitors.c
+++ b/arch/arm64/kernel/debug-monitors.c
@@ -26,6 +26,7 @@
#include <linux/kprobes.h>
#include <linux/stat.h>
#include <linux/uaccess.h>
+#include <linux/sched/task_stack.h>
#include <asm/cpufeature.h>
#include <asm/cputype.h>
diff --git a/arch/arm64/kernel/kgdb.c b/arch/arm64/kernel/kgdb.c
index d217c9e95b06..2122cd187f19 100644
--- a/arch/arm64/kernel/kgdb.c
+++ b/arch/arm64/kernel/kgdb.c
@@ -24,6 +24,8 @@
#include <linux/kdebug.h>
#include <linux/kgdb.h>
#include <linux/kprobes.h>
+#include <linux/sched/task_stack.h>
+
#include <asm/debug-monitors.h>
#include <asm/insn.h>
#include <asm/traps.h>
diff --git a/arch/arm64/kernel/perf_regs.c b/arch/arm64/kernel/perf_regs.c
index 3f62b35fb6f1..bd1b74c2436f 100644
--- a/arch/arm64/kernel/perf_regs.c
+++ b/arch/arm64/kernel/perf_regs.c
@@ -2,6 +2,7 @@
#include <linux/kernel.h>
#include <linux/perf_event.h>
#include <linux/bug.h>
+#include <linux/sched/task_stack.h>
#include <asm/compat.h>
#include <asm/perf_regs.h>
diff --git a/arch/arm64/kernel/process.c b/arch/arm64/kernel/process.c
index cca8252846e9..127c38e14a05 100644
--- a/arch/arm64/kernel/process.c
+++ b/arch/arm64/kernel/process.c
@@ -26,6 +26,7 @@
#include <linux/sched.h>
#include <linux/sched/debug.h>
#include <linux/sched/task.h>
+#include <linux/sched/task_stack.h>
#include <linux/kernel.h>
#include <linux/mm.h>
#include <linux/stddef.h>
diff --git a/arch/arm64/kernel/ptrace.c b/arch/arm64/kernel/ptrace.c
index 64fc32ea3422..c142459a88f3 100644
--- a/arch/arm64/kernel/ptrace.c
+++ b/arch/arm64/kernel/ptrace.c
@@ -23,6 +23,7 @@
#include <linux/compat.h>
#include <linux/kernel.h>
#include <linux/sched/signal.h>
+#include <linux/sched/task_stack.h>
#include <linux/mm.h>
#include <linux/smp.h>
#include <linux/ptrace.h>
diff --git a/arch/arm64/kernel/smp.c b/arch/arm64/kernel/smp.c
index 1091a611e037..61b0b6808147 100644
--- a/arch/arm64/kernel/smp.c
+++ b/arch/arm64/kernel/smp.c
@@ -23,6 +23,7 @@
#include <linux/spinlock.h>
#include <linux/sched.h>
#include <linux/sched/hotplug.h>
+#include <linux/sched/task_stack.h>
#include <linux/interrupt.h>
#include <linux/cache.h>
#include <linux/profile.h>
diff --git a/arch/arm64/kernel/stacktrace.c b/arch/arm64/kernel/stacktrace.c
index 7597e42feeea..feac80c22f61 100644
--- a/arch/arm64/kernel/stacktrace.c
+++ b/arch/arm64/kernel/stacktrace.c
@@ -20,6 +20,7 @@
#include <linux/ftrace.h>
#include <linux/sched.h>
#include <linux/sched/debug.h>
+#include <linux/sched/task_stack.h>
#include <linux/stacktrace.h>
#include <asm/irq.h>
diff --git a/arch/arm64/kernel/traps.c b/arch/arm64/kernel/traps.c
index 9be98a817635..2a256e5ae57f 100644
--- a/arch/arm64/kernel/traps.c
+++ b/arch/arm64/kernel/traps.c
@@ -31,6 +31,7 @@
#include <linux/init.h>
#include <linux/sched/signal.h>
#include <linux/sched/debug.h>
+#include <linux/sched/task_stack.h>
#include <linux/syscalls.h>
#include <asm/atomic.h>
diff --git a/arch/avr32/kernel/process.c b/arch/avr32/kernel/process.c
index 75b944a5107c..ad0dfccedb79 100644
--- a/arch/avr32/kernel/process.c
+++ b/arch/avr32/kernel/process.c
@@ -8,6 +8,7 @@
#include <linux/sched.h>
#include <linux/sched/debug.h>
#include <linux/sched/task.h>
+#include <linux/sched/task_stack.h>
#include <linux/module.h>
#include <linux/kallsyms.h>
#include <linux/fs.h>
diff --git a/arch/avr32/kernel/ptrace.c b/arch/avr32/kernel/ptrace.c
index a89b893279bb..41a14e96a1db 100644
--- a/arch/avr32/kernel/ptrace.c
+++ b/arch/avr32/kernel/ptrace.c
@@ -8,6 +8,7 @@
#undef DEBUG
#include <linux/kernel.h>
#include <linux/sched.h>
+#include <linux/sched/task_stack.h>
#include <linux/mm.h>
#include <linux/ptrace.h>
#include <linux/errno.h>
diff --git a/arch/avr32/kernel/stacktrace.c b/arch/avr32/kernel/stacktrace.c
index c09f0d8dd679..f8cc995cf0e0 100644
--- a/arch/avr32/kernel/stacktrace.c
+++ b/arch/avr32/kernel/stacktrace.c
@@ -8,6 +8,7 @@
* published by the Free Software Foundation.
*/
#include <linux/sched.h>
+#include <linux/sched/task_stack.h>
#include <linux/stacktrace.h>
#include <linux/thread_info.h>
#include <linux/module.h>
diff --git a/arch/blackfin/kernel/process.c b/arch/blackfin/kernel/process.c
index 1a1f444004b1..b691ef875a40 100644
--- a/arch/blackfin/kernel/process.c
+++ b/arch/blackfin/kernel/process.c
@@ -14,6 +14,7 @@
#include <linux/sched.h>
#include <linux/sched/debug.h>
#include <linux/sched/task.h>
+#include <linux/sched/task_stack.h>
#include <linux/tick.h>
#include <linux/fs.h>
#include <linux/err.h>
diff --git a/arch/blackfin/kernel/ptrace.c b/arch/blackfin/kernel/ptrace.c
index 360d99645163..a6827095b99a 100644
--- a/arch/blackfin/kernel/ptrace.c
+++ b/arch/blackfin/kernel/ptrace.c
@@ -7,6 +7,7 @@
#include <linux/kernel.h>
#include <linux/sched.h>
+#include <linux/sched/task_stack.h>
#include <linux/mm.h>
#include <linux/smp.h>
#include <linux/elf.h>
diff --git a/arch/blackfin/kernel/signal.c b/arch/blackfin/kernel/signal.c
index ea570db598e5..5f5172779204 100644
--- a/arch/blackfin/kernel/signal.c
+++ b/arch/blackfin/kernel/signal.c
@@ -12,6 +12,7 @@
#include <linux/binfmts.h>
#include <linux/uaccess.h>
#include <linux/tracehook.h>
+#include <linux/sched/task_stack.h>
#include <asm/cacheflush.h>
#include <asm/ucontext.h>
diff --git a/arch/blackfin/kernel/stacktrace.c b/arch/blackfin/kernel/stacktrace.c
index 30301e1eace5..17198f3650b6 100644
--- a/arch/blackfin/kernel/stacktrace.c
+++ b/arch/blackfin/kernel/stacktrace.c
@@ -6,6 +6,7 @@
*/
#include <linux/sched.h>
+#include <linux/sched/task_stack.h>
#include <linux/stacktrace.h>
#include <linux/thread_info.h>
#include <linux/module.h>
diff --git a/arch/blackfin/mach-common/smp.c b/arch/blackfin/mach-common/smp.c
index 23c4ef5f8bdc..3533c419492d 100644
--- a/arch/blackfin/mach-common/smp.c
+++ b/arch/blackfin/mach-common/smp.c
@@ -12,6 +12,7 @@
#include <linux/init.h>
#include <linux/spinlock.h>
#include <linux/sched.h>
+#include <linux/sched/task_stack.h>
#include <linux/interrupt.h>
#include <linux/cache.h>
#include <linux/clockchips.h>
diff --git a/arch/c6x/kernel/process.c b/arch/c6x/kernel/process.c
index 6b61779d426a..c4ecb24c2d5c 100644
--- a/arch/c6x/kernel/process.c
+++ b/arch/c6x/kernel/process.c
@@ -18,6 +18,7 @@
#include <linux/syscalls.h>
#include <linux/reboot.h>
#include <linux/sched/task.h>
+#include <linux/sched/task_stack.h>
#include <asm/syscalls.h>
diff --git a/arch/c6x/kernel/ptrace.c b/arch/c6x/kernel/ptrace.c
index 3c494e84444d..a27e1f02ce18 100644
--- a/arch/c6x/kernel/ptrace.c
+++ b/arch/c6x/kernel/ptrace.c
@@ -14,6 +14,7 @@
#include <linux/tracehook.h>
#include <linux/regset.h>
#include <linux/elf.h>
+#include <linux/sched/task_stack.h>
#include <asm/cacheflush.h>
diff --git a/arch/cris/arch-v10/kernel/process.c b/arch/cris/arch-v10/kernel/process.c
index 808c2186b704..e299d30105b5 100644
--- a/arch/cris/arch-v10/kernel/process.c
+++ b/arch/cris/arch-v10/kernel/process.c
@@ -13,6 +13,7 @@
#include <linux/sched.h>
#include <linux/sched/debug.h>
#include <linux/sched/task.h>
+#include <linux/sched/task_stack.h>
#include <linux/slab.h>
#include <linux/err.h>
#include <linux/fs.h>
diff --git a/arch/cris/arch-v10/kernel/ptrace.c b/arch/cris/arch-v10/kernel/ptrace.c
index eca94c7d56e7..c2f2b9b83cc4 100644
--- a/arch/cris/arch-v10/kernel/ptrace.c
+++ b/arch/cris/arch-v10/kernel/ptrace.c
@@ -4,6 +4,7 @@
#include <linux/kernel.h>
#include <linux/sched.h>
+#include <linux/sched/task_stack.h>
#include <linux/mm.h>
#include <linux/smp.h>
#include <linux/errno.h>
diff --git a/arch/cris/arch-v10/kernel/signal.c b/arch/cris/arch-v10/kernel/signal.c
index db30c98e4926..bab4a8dd6bfd 100644
--- a/arch/cris/arch-v10/kernel/signal.c
+++ b/arch/cris/arch-v10/kernel/signal.c
@@ -14,6 +14,7 @@
*/
#include <linux/sched.h>
+#include <linux/sched/task_stack.h>
#include <linux/mm.h>
#include <linux/smp.h>
#include <linux/kernel.h>
diff --git a/arch/cris/arch-v32/kernel/process.c b/arch/cris/arch-v32/kernel/process.c
index c852df262948..c530a8fa87ce 100644
--- a/arch/cris/arch-v32/kernel/process.c
+++ b/arch/cris/arch-v32/kernel/process.c
@@ -11,6 +11,7 @@
#include <linux/sched.h>
#include <linux/sched/debug.h>
#include <linux/sched/task.h>
+#include <linux/sched/task_stack.h>
#include <linux/slab.h>
#include <linux/err.h>
#include <linux/fs.h>
diff --git a/arch/cris/arch-v32/kernel/ptrace.c b/arch/cris/arch-v32/kernel/ptrace.c
index c366bc05466a..0461e95bbb62 100644
--- a/arch/cris/arch-v32/kernel/ptrace.c
+++ b/arch/cris/arch-v32/kernel/ptrace.c
@@ -4,6 +4,7 @@
#include <linux/kernel.h>
#include <linux/sched.h>
+#include <linux/sched/task_stack.h>
#include <linux/mm.h>
#include <linux/smp.h>
#include <linux/errno.h>
diff --git a/arch/cris/arch-v32/kernel/signal.c b/arch/cris/arch-v32/kernel/signal.c
index 816bf2ca93ef..ea2e8e1398e8 100644
--- a/arch/cris/arch-v32/kernel/signal.c
+++ b/arch/cris/arch-v32/kernel/signal.c
@@ -3,6 +3,7 @@
*/
#include <linux/sched.h>
+#include <linux/sched/task_stack.h>
#include <linux/mm.h>
#include <linux/slab.h>
#include <linux/kernel.h>
diff --git a/arch/frv/kernel/process.c b/arch/frv/kernel/process.c
index c96dbd4b8626..5a4c92abc99e 100644
--- a/arch/frv/kernel/process.c
+++ b/arch/frv/kernel/process.c
@@ -15,6 +15,7 @@
#include <linux/sched.h>
#include <linux/sched/debug.h>
#include <linux/sched/task.h>
+#include <linux/sched/task_stack.h>
#include <linux/kernel.h>
#include <linux/mm.h>
#include <linux/smp.h>
diff --git a/arch/h8300/kernel/process.c b/arch/h8300/kernel/process.c
index 54e4d6f01865..0f5db5bb561b 100644
--- a/arch/h8300/kernel/process.c
+++ b/arch/h8300/kernel/process.c
@@ -27,6 +27,7 @@
#include <linux/sched.h>
#include <linux/sched/debug.h>
#include <linux/sched/task.h>
+#include <linux/sched/task_stack.h>
#include <linux/kernel.h>
#include <linux/mm.h>
#include <linux/smp.h>
diff --git a/arch/h8300/kernel/signal.c b/arch/h8300/kernel/signal.c
index d784f7117f9a..1e8070d08770 100644
--- a/arch/h8300/kernel/signal.c
+++ b/arch/h8300/kernel/signal.c
@@ -25,6 +25,7 @@
*/
#include <linux/sched.h>
+#include <linux/sched/task_stack.h>
#include <linux/mm.h>
#include <linux/kernel.h>
#include <linux/signal.h>
diff --git a/arch/hexagon/kernel/kgdb.c b/arch/hexagon/kernel/kgdb.c
index 62dece3ad827..16c24b22d0b2 100644
--- a/arch/hexagon/kernel/kgdb.c
+++ b/arch/hexagon/kernel/kgdb.c
@@ -20,6 +20,7 @@
#include <linux/irq.h>
#include <linux/sched.h>
+#include <linux/sched/task_stack.h>
#include <linux/kdebug.h>
#include <linux/kgdb.h>
diff --git a/arch/hexagon/kernel/process.c b/arch/hexagon/kernel/process.c
index a2a822a875b6..de715bab7956 100644
--- a/arch/hexagon/kernel/process.c
+++ b/arch/hexagon/kernel/process.c
@@ -21,6 +21,7 @@
#include <linux/sched.h>
#include <linux/sched/debug.h>
#include <linux/sched/task.h>
+#include <linux/sched/task_stack.h>
#include <linux/types.h>
#include <linux/module.h>
#include <linux/tick.h>
diff --git a/arch/hexagon/kernel/ptrace.c b/arch/hexagon/kernel/ptrace.c
index 390a9ad14ca1..ecd75e2e8eb3 100644
--- a/arch/hexagon/kernel/ptrace.c
+++ b/arch/hexagon/kernel/ptrace.c
@@ -22,6 +22,7 @@
#include <linux/kernel.h>
#include <linux/sched.h>
+#include <linux/sched/task_stack.h>
#include <linux/mm.h>
#include <linux/smp.h>
#include <linux/errno.h>
diff --git a/arch/hexagon/kernel/signal.c b/arch/hexagon/kernel/signal.c
index c6b22b9945a7..78aa7304a5c9 100644
--- a/arch/hexagon/kernel/signal.c
+++ b/arch/hexagon/kernel/signal.c
@@ -21,6 +21,8 @@
#include <linux/linkage.h>
#include <linux/syscalls.h>
#include <linux/tracehook.h>
+#include <linux/sched/task_stack.h>
+
#include <asm/registers.h>
#include <asm/thread_info.h>
#include <asm/unistd.h>
diff --git a/arch/hexagon/kernel/stacktrace.c b/arch/hexagon/kernel/stacktrace.c
index f94918b449a8..41866a06adf7 100644
--- a/arch/hexagon/kernel/stacktrace.c
+++ b/arch/hexagon/kernel/stacktrace.c
@@ -19,6 +19,7 @@
*/
#include <linux/sched.h>
+#include <linux/sched/task_stack.h>
#include <linux/stacktrace.h>
#include <linux/thread_info.h>
#include <linux/module.h>
diff --git a/arch/hexagon/kernel/traps.c b/arch/hexagon/kernel/traps.c
index b55f13c70b34..2942a9204a9a 100644
--- a/arch/hexagon/kernel/traps.c
+++ b/arch/hexagon/kernel/traps.c
@@ -21,6 +21,7 @@
#include <linux/init.h>
#include <linux/sched/signal.h>
#include <linux/sched/debug.h>
+#include <linux/sched/task_stack.h>
#include <linux/module.h>
#include <linux/kallsyms.h>
#include <linux/kdebug.h>
diff --git a/arch/ia64/kernel/perfmon.c b/arch/ia64/kernel/perfmon.c
index 7e943d3c05ed..09f86ebfcc7b 100644
--- a/arch/ia64/kernel/perfmon.c
+++ b/arch/ia64/kernel/perfmon.c
@@ -23,6 +23,7 @@
#include <linux/kernel.h>
#include <linux/sched.h>
#include <linux/sched/task.h>
+#include <linux/sched/task_stack.h>
#include <linux/interrupt.h>
#include <linux/proc_fs.h>
#include <linux/seq_file.h>
diff --git a/arch/ia64/kernel/process.c b/arch/ia64/kernel/process.c
index 054facf22156..d344d0d691aa 100644
--- a/arch/ia64/kernel/process.c
+++ b/arch/ia64/kernel/process.c
@@ -23,6 +23,7 @@
#include <linux/sched/debug.h>
#include <linux/sched/hotplug.h>
#include <linux/sched/task.h>
+#include <linux/sched/task_stack.h>
#include <linux/stddef.h>
#include <linux/thread_info.h>
#include <linux/unistd.h>
diff --git a/arch/ia64/kernel/ptrace.c b/arch/ia64/kernel/ptrace.c
index 04fe1436e1cc..3f8293378a83 100644
--- a/arch/ia64/kernel/ptrace.c
+++ b/arch/ia64/kernel/ptrace.c
@@ -12,6 +12,7 @@
#include <linux/kernel.h>
#include <linux/sched.h>
#include <linux/sched/task.h>
+#include <linux/sched/task_stack.h>
#include <linux/mm.h>
#include <linux/errno.h>
#include <linux/ptrace.h>
diff --git a/arch/ia64/kernel/setup.c b/arch/ia64/kernel/setup.c
index 36f8361674f3..35a9416705d8 100644
--- a/arch/ia64/kernel/setup.c
+++ b/arch/ia64/kernel/setup.c
@@ -33,6 +33,7 @@
#include <linux/reboot.h>
#include <linux/sched.h>
#include <linux/sched/clock.h>
+#include <linux/sched/task_stack.h>
#include <linux/seq_file.h>
#include <linux/string.h>
#include <linux/threads.h>
diff --git a/arch/ia64/kernel/sys_ia64.c b/arch/ia64/kernel/sys_ia64.c
index ce4cc60d519b..5ce927c854a6 100644
--- a/arch/ia64/kernel/sys_ia64.c
+++ b/arch/ia64/kernel/sys_ia64.c
@@ -11,6 +11,7 @@
#include <linux/mman.h>
#include <linux/sched.h>
#include <linux/sched/mm.h>
+#include <linux/sched/task_stack.h>
#include <linux/shm.h>
#include <linux/file.h> /* doh, must come after sched.h... */
#include <linux/smp.h>
diff --git a/arch/m32r/kernel/process.c b/arch/m32r/kernel/process.c
index 2a450382934c..d8ffcfec599c 100644
--- a/arch/m32r/kernel/process.c
+++ b/arch/m32r/kernel/process.c
@@ -24,6 +24,7 @@
#include <linux/slab.h>
#include <linux/sched/debug.h>
#include <linux/sched/task.h>
+#include <linux/sched/task_stack.h>
#include <linux/module.h>
#include <linux/ptrace.h>
#include <linux/unistd.h>
diff --git a/arch/m32r/kernel/ptrace.c b/arch/m32r/kernel/ptrace.c
index a68acb9fa515..2d887400e30e 100644
--- a/arch/m32r/kernel/ptrace.c
+++ b/arch/m32r/kernel/ptrace.c
@@ -16,6 +16,7 @@
#include <linux/kernel.h>
#include <linux/sched.h>
+#include <linux/sched/task_stack.h>
#include <linux/mm.h>
#include <linux/err.h>
#include <linux/smp.h>
diff --git a/arch/m68k/kernel/process.c b/arch/m68k/kernel/process.c
index 145218c1ad82..2f3db323f3e6 100644
--- a/arch/m68k/kernel/process.c
+++ b/arch/m68k/kernel/process.c
@@ -15,6 +15,7 @@
#include <linux/sched.h>
#include <linux/sched/debug.h>
#include <linux/sched/task.h>
+#include <linux/sched/task_stack.h>
#include <linux/kernel.h>
#include <linux/mm.h>
#include <linux/slab.h>
diff --git a/arch/m68k/kernel/ptrace.c b/arch/m68k/kernel/ptrace.c
index 9cd86d7343a6..748c63bd0081 100644
--- a/arch/m68k/kernel/ptrace.c
+++ b/arch/m68k/kernel/ptrace.c
@@ -12,6 +12,7 @@
#include <linux/kernel.h>
#include <linux/sched.h>
+#include <linux/sched/task_stack.h>
#include <linux/mm.h>
#include <linux/smp.h>
#include <linux/errno.h>
diff --git a/arch/metag/kernel/process.c b/arch/metag/kernel/process.c
index 801e6f927e62..c4606ce743d2 100644
--- a/arch/metag/kernel/process.c
+++ b/arch/metag/kernel/process.c
@@ -10,6 +10,7 @@
#include <linux/sched.h>
#include <linux/sched/debug.h>
#include <linux/sched/task.h>
+#include <linux/sched/task_stack.h>
#include <linux/kernel.h>
#include <linux/mm.h>
#include <linux/unistd.h>
diff --git a/arch/metag/kernel/ptrace.c b/arch/metag/kernel/ptrace.c
index 7563628822bd..5fd16ee5280c 100644
--- a/arch/metag/kernel/ptrace.c
+++ b/arch/metag/kernel/ptrace.c
@@ -15,6 +15,8 @@
#include <linux/tracehook.h>
#include <linux/elf.h>
#include <linux/uaccess.h>
+#include <linux/sched/task_stack.h>
+
#include <trace/syscall.h>
#define CREATE_TRACE_POINTS
diff --git a/arch/metag/kernel/signal.c b/arch/metag/kernel/signal.c
index ce49d429c74a..338925d808e6 100644
--- a/arch/metag/kernel/signal.c
+++ b/arch/metag/kernel/signal.c
@@ -7,6 +7,7 @@
*/
#include <linux/sched.h>
+#include <linux/sched/task_stack.h>
#include <linux/mm.h>
#include <linux/smp.h>
#include <linux/kernel.h>
diff --git a/arch/metag/kernel/smp.c b/arch/metag/kernel/smp.c
index 142707513ba3..d30dd934945b 100644
--- a/arch/metag/kernel/smp.c
+++ b/arch/metag/kernel/smp.c
@@ -14,6 +14,7 @@
#include <linux/spinlock.h>
#include <linux/sched.h>
#include <linux/sched/hotplug.h>
+#include <linux/sched/task_stack.h>
#include <linux/interrupt.h>
#include <linux/cache.h>
#include <linux/profile.h>
diff --git a/arch/metag/kernel/traps.c b/arch/metag/kernel/traps.c
index 23c5ac33a93f..444851e510d5 100644
--- a/arch/metag/kernel/traps.c
+++ b/arch/metag/kernel/traps.c
@@ -12,6 +12,7 @@
#include <linux/sched.h>
#include <linux/sched/debug.h>
#include <linux/sched/task.h>
+#include <linux/sched/task_stack.h>
#include <linux/signal.h>
#include <linux/kernel.h>
#include <linux/mm.h>
diff --git a/arch/microblaze/kernel/process.c b/arch/microblaze/kernel/process.c
index a642fe5ac5ff..e92a817e645f 100644
--- a/arch/microblaze/kernel/process.c
+++ b/arch/microblaze/kernel/process.c
@@ -13,6 +13,7 @@
#include <linux/sched.h>
#include <linux/sched/debug.h>
#include <linux/sched/task.h>
+#include <linux/sched/task_stack.h>
#include <linux/pm.h>
#include <linux/tick.h>
#include <linux/bitops.h>
diff --git a/arch/microblaze/kernel/ptrace.c b/arch/microblaze/kernel/ptrace.c
index 8cfa98cadf3d..badd286882ae 100644
--- a/arch/microblaze/kernel/ptrace.c
+++ b/arch/microblaze/kernel/ptrace.c
@@ -27,6 +27,7 @@
#include <linux/kernel.h>
#include <linux/mm.h>
#include <linux/sched.h>
+#include <linux/sched/task_stack.h>
#include <linux/ptrace.h>
#include <linux/signal.h>
#include <linux/elf.h>
diff --git a/arch/microblaze/kernel/unwind.c b/arch/microblaze/kernel/unwind.c
index 61c04eed14d5..34c270cb11fc 100644
--- a/arch/microblaze/kernel/unwind.c
+++ b/arch/microblaze/kernel/unwind.c
@@ -17,6 +17,7 @@
#include <linux/kallsyms.h>
#include <linux/kernel.h>
#include <linux/sched.h>
+#include <linux/sched/task_stack.h>
#include <linux/stacktrace.h>
#include <linux/types.h>
#include <linux/errno.h>
diff --git a/arch/mips/include/asm/fpu.h b/arch/mips/include/asm/fpu.h
index f06f97bd62df..321752bcbab6 100644
--- a/arch/mips/include/asm/fpu.h
+++ b/arch/mips/include/asm/fpu.h
@@ -11,6 +11,7 @@
#define _ASM_FPU_H
#include <linux/sched.h>
+#include <linux/sched/task_stack.h>
#include <linux/thread_info.h>
#include <linux/bitops.h>
diff --git a/arch/mips/kernel/crash.c b/arch/mips/kernel/crash.c
index 1723b1762297..95723c542afe 100644
--- a/arch/mips/kernel/crash.c
+++ b/arch/mips/kernel/crash.c
@@ -8,6 +8,7 @@
#include <linux/irq.h>
#include <linux/types.h>
#include <linux/sched.h>
+#include <linux/sched/task_stack.h>
/* This keeps a track of which one is crashing cpu. */
static int crashing_cpu = -1;
diff --git a/arch/mips/kernel/perf_event.c b/arch/mips/kernel/perf_event.c
index d64056e0bb56..f298eb2ff6c2 100644
--- a/arch/mips/kernel/perf_event.c
+++ b/arch/mips/kernel/perf_event.c
@@ -15,6 +15,7 @@
*/
#include <linux/perf_event.h>
+#include <linux/sched/task_stack.h>
#include <asm/stacktrace.h>
diff --git a/arch/mips/kernel/process.c b/arch/mips/kernel/process.c
index eb1d387cacdf..5b0d1b518f9a 100644
--- a/arch/mips/kernel/process.c
+++ b/arch/mips/kernel/process.c
@@ -13,6 +13,7 @@
#include <linux/sched.h>
#include <linux/sched/debug.h>
#include <linux/sched/task.h>
+#include <linux/sched/task_stack.h>
#include <linux/tick.h>
#include <linux/kernel.h>
#include <linux/mm.h>
diff --git a/arch/mips/kernel/ptrace.c b/arch/mips/kernel/ptrace.c
index c8ba26072132..6c7466af06b5 100644
--- a/arch/mips/kernel/ptrace.c
+++ b/arch/mips/kernel/ptrace.c
@@ -19,6 +19,7 @@
#include <linux/elf.h>
#include <linux/kernel.h>
#include <linux/sched.h>
+#include <linux/sched/task_stack.h>
#include <linux/mm.h>
#include <linux/errno.h>
#include <linux/ptrace.h>
diff --git a/arch/mips/kernel/ptrace32.c b/arch/mips/kernel/ptrace32.c
index 4f0998525626..40e212d6b26b 100644
--- a/arch/mips/kernel/ptrace32.c
+++ b/arch/mips/kernel/ptrace32.c
@@ -18,6 +18,7 @@
#include <linux/compat.h>
#include <linux/kernel.h>
#include <linux/sched.h>
+#include <linux/sched/task_stack.h>
#include <linux/mm.h>
#include <linux/errno.h>
#include <linux/ptrace.h>
diff --git a/arch/mips/kernel/stacktrace.c b/arch/mips/kernel/stacktrace.c
index 986f910961d9..7c7c902249f2 100644
--- a/arch/mips/kernel/stacktrace.c
+++ b/arch/mips/kernel/stacktrace.c
@@ -5,6 +5,7 @@
*/
#include <linux/sched.h>
#include <linux/sched/debug.h>
+#include <linux/sched/task_stack.h>
#include <linux/stacktrace.h>
#include <linux/export.h>
#include <asm/stacktrace.h>
diff --git a/arch/mips/kernel/syscall.c b/arch/mips/kernel/syscall.c
index 833f82210528..82532d709fc2 100644
--- a/arch/mips/kernel/syscall.c
+++ b/arch/mips/kernel/syscall.c
@@ -26,6 +26,7 @@
#include <linux/uaccess.h>
#include <linux/slab.h>
#include <linux/elf.h>
+#include <linux/sched/task_stack.h>
#include <asm/asm.h>
#include <asm/branch.h>
diff --git a/arch/mips/sibyte/bcm1480/smp.c b/arch/mips/sibyte/bcm1480/smp.c
index 4c71aea25663..d0e94ffcc1b8 100644
--- a/arch/mips/sibyte/bcm1480/smp.c
+++ b/arch/mips/sibyte/bcm1480/smp.c
@@ -21,6 +21,7 @@
#include <linux/smp.h>
#include <linux/kernel_stat.h>
#include <linux/sched.h>
+#include <linux/sched/task_stack.h>
#include <asm/mmu_context.h>
#include <asm/io.h>
diff --git a/arch/mn10300/kernel/process.c b/arch/mn10300/kernel/process.c
index 8ca7a9de09a5..c9fa42619c6a 100644
--- a/arch/mn10300/kernel/process.c
+++ b/arch/mn10300/kernel/process.c
@@ -13,6 +13,7 @@
#include <linux/sched.h>
#include <linux/sched/debug.h>
#include <linux/sched/task.h>
+#include <linux/sched/task_stack.h>
#include <linux/kernel.h>
#include <linux/mm.h>
#include <linux/smp.h>
diff --git a/arch/mn10300/kernel/ptrace.c b/arch/mn10300/kernel/ptrace.c
index 976020f469c1..8009876a7ac4 100644
--- a/arch/mn10300/kernel/ptrace.c
+++ b/arch/mn10300/kernel/ptrace.c
@@ -11,6 +11,7 @@
*/
#include <linux/kernel.h>
#include <linux/sched.h>
+#include <linux/sched/task_stack.h>
#include <linux/mm.h>
#include <linux/smp.h>
#include <linux/errno.h>
diff --git a/arch/nios2/kernel/process.c b/arch/nios2/kernel/process.c
index 5ee1ddf6a924..869a4d59de32 100644
--- a/arch/nios2/kernel/process.c
+++ b/arch/nios2/kernel/process.c
@@ -16,6 +16,7 @@
#include <linux/sched.h>
#include <linux/sched/debug.h>
#include <linux/sched/task.h>
+#include <linux/sched/task_stack.h>
#include <linux/tick.h>
#include <linux/uaccess.h>
diff --git a/arch/nios2/kernel/ptrace.c b/arch/nios2/kernel/ptrace.c
index 681dda92eff1..de97bcb7dd44 100644
--- a/arch/nios2/kernel/ptrace.c
+++ b/arch/nios2/kernel/ptrace.c
@@ -14,6 +14,7 @@
#include <linux/ptrace.h>
#include <linux/regset.h>
#include <linux/sched.h>
+#include <linux/sched/task_stack.h>
#include <linux/tracehook.h>
#include <linux/uaccess.h>
#include <linux/user.h>
diff --git a/arch/openrisc/kernel/process.c b/arch/openrisc/kernel/process.c
index 20c61068ea37..9f7c2e0fd569 100644
--- a/arch/openrisc/kernel/process.c
+++ b/arch/openrisc/kernel/process.c
@@ -24,6 +24,7 @@
#include <linux/sched.h>
#include <linux/sched/debug.h>
#include <linux/sched/task.h>
+#include <linux/sched/task_stack.h>
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/mm.h>
diff --git a/arch/openrisc/kernel/ptrace.c b/arch/openrisc/kernel/ptrace.c
index 4f59fa4e34e5..f4370cb26b06 100644
--- a/arch/openrisc/kernel/ptrace.c
+++ b/arch/openrisc/kernel/ptrace.c
@@ -19,6 +19,7 @@
#include <stddef.h>
#include <linux/kernel.h>
#include <linux/sched.h>
+#include <linux/sched/task_stack.h>
#include <linux/string.h>
#include <linux/mm.h>
diff --git a/arch/parisc/kernel/process.c b/arch/parisc/kernel/process.c
index e5f97239cc5e..06f7ca7fe70b 100644
--- a/arch/parisc/kernel/process.c
+++ b/arch/parisc/kernel/process.c
@@ -45,6 +45,7 @@
#include <linux/sched.h>
#include <linux/sched/debug.h>
#include <linux/sched/task.h>
+#include <linux/sched/task_stack.h>
#include <linux/slab.h>
#include <linux/stddef.h>
#include <linux/unistd.h>
diff --git a/arch/powerpc/kernel/process.c b/arch/powerpc/kernel/process.c
index 3ef67551aeb2..eb46c9805e0e 100644
--- a/arch/powerpc/kernel/process.c
+++ b/arch/powerpc/kernel/process.c
@@ -18,6 +18,7 @@
#include <linux/sched.h>
#include <linux/sched/debug.h>
#include <linux/sched/task.h>
+#include <linux/sched/task_stack.h>
#include <linux/kernel.h>
#include <linux/mm.h>
#include <linux/smp.h>
diff --git a/arch/powerpc/mm/fault.c b/arch/powerpc/mm/fault.c
index 6fd30ac7d14a..8b877a216195 100644
--- a/arch/powerpc/mm/fault.c
+++ b/arch/powerpc/mm/fault.c
@@ -17,6 +17,7 @@
#include <linux/signal.h>
#include <linux/sched.h>
+#include <linux/sched/task_stack.h>
#include <linux/kernel.h>
#include <linux/errno.h>
#include <linux/string.h>
diff --git a/arch/powerpc/perf/perf_regs.c b/arch/powerpc/perf/perf_regs.c
index d24a8a3668fa..cbd82fde5770 100644
--- a/arch/powerpc/perf/perf_regs.c
+++ b/arch/powerpc/perf/perf_regs.c
@@ -10,6 +10,7 @@
#include <linux/errno.h>
#include <linux/kernel.h>
#include <linux/sched.h>
+#include <linux/sched/task_stack.h>
#include <linux/perf_event.h>
#include <linux/bug.h>
#include <linux/stddef.h>
diff --git a/arch/s390/include/asm/compat.h b/arch/s390/include/asm/compat.h
index 352f7bdaf11f..0ddd37e6c29d 100644
--- a/arch/s390/include/asm/compat.h
+++ b/arch/s390/include/asm/compat.h
@@ -5,6 +5,7 @@
*/
#include <linux/types.h>
#include <linux/sched.h>
+#include <linux/sched/task_stack.h>
#include <linux/thread_info.h>
#define __TYPE_IS_PTR(t) (!__builtin_types_compatible_p(typeof(0?(t)0:0ULL), u64))
diff --git a/arch/s390/include/asm/kprobes.h b/arch/s390/include/asm/kprobes.h
index 591e5a5279b0..12687678675a 100644
--- a/arch/s390/include/asm/kprobes.h
+++ b/arch/s390/include/asm/kprobes.h
@@ -30,6 +30,7 @@
#include <linux/types.h>
#include <linux/ptrace.h>
#include <linux/percpu.h>
+#include <linux/sched/task_stack.h>
#define __ARCH_WANT_KPROBES_INSN_SLOT
diff --git a/arch/s390/kernel/compat_signal.c b/arch/s390/kernel/compat_signal.c
index 362350cc485c..c620049c61f2 100644
--- a/arch/s390/kernel/compat_signal.c
+++ b/arch/s390/kernel/compat_signal.c
@@ -10,6 +10,7 @@
#include <linux/compat.h>
#include <linux/sched.h>
+#include <linux/sched/task_stack.h>
#include <linux/mm.h>
#include <linux/smp.h>
#include <linux/kernel.h>
diff --git a/arch/s390/kernel/dumpstack.c b/arch/s390/kernel/dumpstack.c
index 72c584d62f59..829e1c53005c 100644
--- a/arch/s390/kernel/dumpstack.c
+++ b/arch/s390/kernel/dumpstack.c
@@ -15,6 +15,7 @@
#include <linux/module.h>
#include <linux/sched.h>
#include <linux/sched/debug.h>
+#include <linux/sched/task_stack.h>
#include <asm/processor.h>
#include <asm/debug.h>
#include <asm/dis.h>
diff --git a/arch/s390/kernel/process.c b/arch/s390/kernel/process.c
index 63fd09718992..449713535a6a 100644
--- a/arch/s390/kernel/process.c
+++ b/arch/s390/kernel/process.c
@@ -13,6 +13,7 @@
#include <linux/sched.h>
#include <linux/sched/debug.h>
#include <linux/sched/task.h>
+#include <linux/sched/task_stack.h>
#include <linux/kernel.h>
#include <linux/mm.h>
#include <linux/elfcore.h>
diff --git a/arch/s390/kernel/ptrace.c b/arch/s390/kernel/ptrace.c
index 12020b55887b..c14df0a1ec3c 100644
--- a/arch/s390/kernel/ptrace.c
+++ b/arch/s390/kernel/ptrace.c
@@ -8,6 +8,7 @@
#include <linux/kernel.h>
#include <linux/sched.h>
+#include <linux/sched/task_stack.h>
#include <linux/mm.h>
#include <linux/smp.h>
#include <linux/errno.h>
diff --git a/arch/s390/kernel/runtime_instr.c b/arch/s390/kernel/runtime_instr.c
index fffa0e5462af..429d3a782f1c 100644
--- a/arch/s390/kernel/runtime_instr.c
+++ b/arch/s390/kernel/runtime_instr.c
@@ -11,6 +11,8 @@
#include <linux/init.h>
#include <linux/errno.h>
#include <linux/kernel_stat.h>
+#include <linux/sched/task_stack.h>
+
#include <asm/runtime_instr.h>
#include <asm/cpu_mf.h>
#include <asm/irq.h>
diff --git a/arch/s390/kernel/signal.c b/arch/s390/kernel/signal.c
index 62a4c263e887..289dd50f9744 100644
--- a/arch/s390/kernel/signal.c
+++ b/arch/s390/kernel/signal.c
@@ -10,6 +10,7 @@
*/
#include <linux/sched.h>
+#include <linux/sched/task_stack.h>
#include <linux/mm.h>
#include <linux/smp.h>
#include <linux/kernel.h>
diff --git a/arch/s390/kernel/smp.c b/arch/s390/kernel/smp.c
index e6f29aae962b..a6115db5882c 100644
--- a/arch/s390/kernel/smp.c
+++ b/arch/s390/kernel/smp.c
@@ -32,6 +32,7 @@
#include <linux/cpu.h>
#include <linux/slab.h>
#include <linux/sched/hotplug.h>
+#include <linux/sched/task_stack.h>
#include <linux/crash_dump.h>
#include <linux/memblock.h>
#include <asm/asm-offsets.h>
diff --git a/arch/s390/kernel/uprobes.c b/arch/s390/kernel/uprobes.c
index 66956c09d5bf..314e0ee3016a 100644
--- a/arch/s390/kernel/uprobes.c
+++ b/arch/s390/kernel/uprobes.c
@@ -9,6 +9,8 @@
#include <linux/uprobes.h>
#include <linux/compat.h>
#include <linux/kdebug.h>
+#include <linux/sched/task_stack.h>
+
#include <asm/switch_to.h>
#include <asm/facility.h>
#include <asm/kprobes.h>
diff --git a/arch/score/kernel/process.c b/arch/score/kernel/process.c
index 32924159d8c9..eb64d7a677cb 100644
--- a/arch/score/kernel/process.c
+++ b/arch/score/kernel/process.c
@@ -29,6 +29,7 @@
#include <linux/pm.h>
#include <linux/rcupdate.h>
#include <linux/sched/task.h>
+#include <linux/sched/task_stack.h>
void (*pm_power_off)(void);
EXPORT_SYMBOL(pm_power_off);
diff --git a/arch/score/kernel/ptrace.c b/arch/score/kernel/ptrace.c
index 8b75e54816c1..d8455e60bce0 100644
--- a/arch/score/kernel/ptrace.c
+++ b/arch/score/kernel/ptrace.c
@@ -28,6 +28,7 @@
#include <linux/mm.h>
#include <linux/ptrace.h>
#include <linux/regset.h>
+#include <linux/sched/task_stack.h>
#include <linux/uaccess.h>
diff --git a/arch/sh/kernel/cpu/fpu.c b/arch/sh/kernel/cpu/fpu.c
index b76370a47bf9..547c73478459 100644
--- a/arch/sh/kernel/cpu/fpu.c
+++ b/arch/sh/kernel/cpu/fpu.c
@@ -1,5 +1,6 @@
#include <linux/sched/signal.h>
#include <linux/sched/task.h>
+#include <linux/sched/task_stack.h>
#include <linux/slab.h>
#include <asm/processor.h>
#include <asm/fpu.h>
diff --git a/arch/sh/kernel/dumpstack.c b/arch/sh/kernel/dumpstack.c
index d00cab2f50f9..b564b1eae4ae 100644
--- a/arch/sh/kernel/dumpstack.c
+++ b/arch/sh/kernel/dumpstack.c
@@ -12,6 +12,7 @@
#include <linux/ftrace.h>
#include <linux/debug_locks.h>
#include <linux/sched/debug.h>
+#include <linux/sched/task_stack.h>
#include <linux/kdebug.h>
#include <linux/export.h>
#include <linux/uaccess.h>
diff --git a/arch/sh/kernel/kgdb.c b/arch/sh/kernel/kgdb.c
index adad46e41a1d..4f04c6638a4d 100644
--- a/arch/sh/kernel/kgdb.c
+++ b/arch/sh/kernel/kgdb.c
@@ -14,6 +14,8 @@
#include <linux/irq.h>
#include <linux/io.h>
#include <linux/sched.h>
+#include <linux/sched/task_stack.h>
+
#include <asm/cacheflush.h>
#include <asm/traps.h>
diff --git a/arch/sh/kernel/process.c b/arch/sh/kernel/process.c
index 80a61c5e3015..f8a695a223dd 100644
--- a/arch/sh/kernel/process.c
+++ b/arch/sh/kernel/process.c
@@ -2,6 +2,7 @@
#include <linux/kernel.h>
#include <linux/slab.h>
#include <linux/sched/signal.h>
+#include <linux/sched/task_stack.h>
#include <linux/export.h>
#include <linux/stackprotector.h>
#include <asm/fpu.h>
diff --git a/arch/sh/kernel/process_32.c b/arch/sh/kernel/process_32.c
index 493c3eb86aa5..2c7bdf8cb934 100644
--- a/arch/sh/kernel/process_32.c
+++ b/arch/sh/kernel/process_32.c
@@ -17,6 +17,7 @@
#include <linux/mm.h>
#include <linux/sched/debug.h>
#include <linux/sched/task.h>
+#include <linux/sched/task_stack.h>
#include <linux/slab.h>
#include <linux/elfcore.h>
#include <linux/kallsyms.h>
diff --git a/arch/sh/kernel/process_64.c b/arch/sh/kernel/process_64.c
index 056607185158..ee2abe96f9f3 100644
--- a/arch/sh/kernel/process_64.c
+++ b/arch/sh/kernel/process_64.c
@@ -27,6 +27,7 @@
#include <linux/io.h>
#include <linux/sched/debug.h>
#include <linux/sched/task.h>
+#include <linux/sched/task_stack.h>
#include <asm/syscalls.h>
#include <linux/uaccess.h>
#include <asm/pgtable.h>
diff --git a/arch/sh/kernel/ptrace_32.c b/arch/sh/kernel/ptrace_32.c
index 1aabfd356b35..5fc3ff606210 100644
--- a/arch/sh/kernel/ptrace_32.c
+++ b/arch/sh/kernel/ptrace_32.c
@@ -12,6 +12,7 @@
*/
#include <linux/kernel.h>
#include <linux/sched.h>
+#include <linux/sched/task_stack.h>
#include <linux/mm.h>
#include <linux/smp.h>
#include <linux/errno.h>
diff --git a/arch/sh/kernel/ptrace_64.c b/arch/sh/kernel/ptrace_64.c
index c49d0d05a215..1e0656d9e7af 100644
--- a/arch/sh/kernel/ptrace_64.c
+++ b/arch/sh/kernel/ptrace_64.c
@@ -18,6 +18,7 @@
#include <linux/kernel.h>
#include <linux/rwsem.h>
#include <linux/sched.h>
+#include <linux/sched/task_stack.h>
#include <linux/mm.h>
#include <linux/smp.h>
#include <linux/bitops.h>
diff --git a/arch/sh/kernel/signal_32.c b/arch/sh/kernel/signal_32.c
index 5128d3001ee5..08bce11badc6 100644
--- a/arch/sh/kernel/signal_32.c
+++ b/arch/sh/kernel/signal_32.c
@@ -9,6 +9,7 @@
*
*/
#include <linux/sched.h>
+#include <linux/sched/task_stack.h>
#include <linux/mm.h>
#include <linux/smp.h>
#include <linux/kernel.h>
diff --git a/arch/sh/kernel/sys_sh32.c b/arch/sh/kernel/sys_sh32.c
index d5287d76809c..a2e1231a90a3 100644
--- a/arch/sh/kernel/sys_sh32.c
+++ b/arch/sh/kernel/sys_sh32.c
@@ -1,5 +1,6 @@
#include <linux/errno.h>
#include <linux/sched.h>
+#include <linux/sched/task_stack.h>
#include <linux/mm.h>
#include <linux/smp.h>
#include <linux/sem.h>
diff --git a/arch/sh/kernel/traps.c b/arch/sh/kernel/traps.c
index d0d5703affaa..705bbcb7c3e8 100644
--- a/arch/sh/kernel/traps.c
+++ b/arch/sh/kernel/traps.c
@@ -5,6 +5,7 @@
#include <linux/signal.h>
#include <linux/sched.h>
#include <linux/sched/debug.h>
+#include <linux/sched/task_stack.h>
#include <linux/uaccess.h>
#include <linux/hardirq.h>
#include <linux/kernel.h>
diff --git a/arch/sh/kernel/traps_32.c b/arch/sh/kernel/traps_32.c
index ff639342a8be..57cff00cad17 100644
--- a/arch/sh/kernel/traps_32.c
+++ b/arch/sh/kernel/traps_32.c
@@ -25,6 +25,8 @@
#include <linux/sysfs.h>
#include <linux/uaccess.h>
#include <linux/perf_event.h>
+#include <linux/sched/task_stack.h>
+
#include <asm/alignment.h>
#include <asm/fpu.h>
#include <asm/kprobes.h>
diff --git a/arch/sparc/kernel/process_32.c b/arch/sparc/kernel/process_32.c
index ed87c45a785b..b6dac8e980f0 100644
--- a/arch/sparc/kernel/process_32.c
+++ b/arch/sparc/kernel/process_32.c
@@ -16,6 +16,7 @@
#include <linux/sched.h>
#include <linux/sched/debug.h>
#include <linux/sched/task.h>
+#include <linux/sched/task_stack.h>
#include <linux/kernel.h>
#include <linux/mm.h>
#include <linux/stddef.h>
diff --git a/arch/sparc/kernel/process_64.c b/arch/sparc/kernel/process_64.c
index 4c82a73af893..1badc493e62e 100644
--- a/arch/sparc/kernel/process_64.c
+++ b/arch/sparc/kernel/process_64.c
@@ -16,6 +16,7 @@
#include <linux/sched.h>
#include <linux/sched/debug.h>
#include <linux/sched/task.h>
+#include <linux/sched/task_stack.h>
#include <linux/kernel.h>
#include <linux/mm.h>
#include <linux/fs.h>
diff --git a/arch/sparc/kernel/ptrace_64.c b/arch/sparc/kernel/ptrace_64.c
index 901063c1cf7e..df9e731a76f5 100644
--- a/arch/sparc/kernel/ptrace_64.c
+++ b/arch/sparc/kernel/ptrace_64.c
@@ -12,6 +12,7 @@
#include <linux/kernel.h>
#include <linux/sched.h>
+#include <linux/sched/task_stack.h>
#include <linux/mm.h>
#include <linux/errno.h>
#include <linux/export.h>
diff --git a/arch/tile/kernel/compat_signal.c b/arch/tile/kernel/compat_signal.c
index c667e104a0c2..0e863f1ee08c 100644
--- a/arch/tile/kernel/compat_signal.c
+++ b/arch/tile/kernel/compat_signal.c
@@ -13,6 +13,7 @@
*/
#include <linux/sched.h>
+#include <linux/sched/task_stack.h>
#include <linux/mm.h>
#include <linux/smp.h>
#include <linux/kernel.h>
diff --git a/arch/tile/kernel/kgdb.c b/arch/tile/kernel/kgdb.c
index 9247d6b562f4..d4eb5fb2df9d 100644
--- a/arch/tile/kernel/kgdb.c
+++ b/arch/tile/kernel/kgdb.c
@@ -19,6 +19,8 @@
#include <linux/kdebug.h>
#include <linux/uaccess.h>
#include <linux/module.h>
+#include <linux/sched/task_stack.h>
+
#include <asm/cacheflush.h>
static tile_bundle_bits singlestep_insn = TILEGX_BPT_BUNDLE | DIE_SSTEPBP;
diff --git a/arch/tile/kernel/process.c b/arch/tile/kernel/process.c
index dbb4fa76d1dd..f0a0e18e4dfb 100644
--- a/arch/tile/kernel/process.c
+++ b/arch/tile/kernel/process.c
@@ -15,6 +15,7 @@
#include <linux/sched.h>
#include <linux/sched/debug.h>
#include <linux/sched/task.h>
+#include <linux/sched/task_stack.h>
#include <linux/preempt.h>
#include <linux/module.h>
#include <linux/fs.h>
diff --git a/arch/tile/kernel/ptrace.c b/arch/tile/kernel/ptrace.c
index e279572824b1..e1a078e6828e 100644
--- a/arch/tile/kernel/ptrace.c
+++ b/arch/tile/kernel/ptrace.c
@@ -23,6 +23,8 @@
#include <linux/elf.h>
#include <linux/tracehook.h>
#include <linux/context_tracking.h>
+#include <linux/sched/task_stack.h>
+
#include <asm/traps.h>
#include <arch/chip.h>
diff --git a/arch/tile/kernel/signal.c b/arch/tile/kernel/signal.c
index 8cc92ae6eb27..f2bf557bb005 100644
--- a/arch/tile/kernel/signal.c
+++ b/arch/tile/kernel/signal.c
@@ -15,6 +15,7 @@
#include <linux/sched.h>
#include <linux/sched/debug.h>
+#include <linux/sched/task_stack.h>
#include <linux/mm.h>
#include <linux/smp.h>
#include <linux/kernel.h>
diff --git a/arch/tile/kernel/stack.c b/arch/tile/kernel/stack.c
index a1c0787fe9d8..94ecbc6676e5 100644
--- a/arch/tile/kernel/stack.c
+++ b/arch/tile/kernel/stack.c
@@ -14,6 +14,7 @@
#include <linux/sched.h>
#include <linux/sched/debug.h>
+#include <linux/sched/task_stack.h>
#include <linux/kernel.h>
#include <linux/kprobes.h>
#include <linux/module.h>
diff --git a/arch/tile/mm/fault.c b/arch/tile/mm/fault.c
index 1e0509a4c8bd..f58fa06a2214 100644
--- a/arch/tile/mm/fault.c
+++ b/arch/tile/mm/fault.c
@@ -17,11 +17,8 @@
#include <linux/signal.h>
#include <linux/sched.h>
#include <linux/sched/debug.h>
-<<<<<<< HEAD
-=======
#include <linux/sched/task.h>
#include <linux/sched/task_stack.h>
->>>>>>> 9ecfbdbd2d46... fork.h fixes
#include <linux/kernel.h>
#include <linux/errno.h>
#include <linux/string.h>
diff --git a/arch/um/kernel/exec.c b/arch/um/kernel/exec.c
index 2df4e5d11939..31968677a0d0 100644
--- a/arch/um/kernel/exec.c
+++ b/arch/um/kernel/exec.c
@@ -9,6 +9,7 @@
#include <linux/ptrace.h>
#include <linux/sched.h>
#include <linux/sched/task.h>
+#include <linux/sched/task_stack.h>
#include <linux/slab.h>
#include <asm/current.h>
#include <asm/processor.h>
diff --git a/arch/um/kernel/process.c b/arch/um/kernel/process.c
index e76dc7c11251..a9bd61820042 100644
--- a/arch/um/kernel/process.c
+++ b/arch/um/kernel/process.c
@@ -19,6 +19,7 @@
#include <linux/sched.h>
#include <linux/sched/debug.h>
#include <linux/sched/task.h>
+#include <linux/sched/task_stack.h>
#include <linux/seq_file.h>
#include <linux/tick.h>
#include <linux/threads.h>
diff --git a/arch/um/kernel/skas/process.c b/arch/um/kernel/skas/process.c
index 527fa5881915..ddecf326dab2 100644
--- a/arch/um/kernel/skas/process.c
+++ b/arch/um/kernel/skas/process.c
@@ -5,6 +5,7 @@
#include <linux/init.h>
#include <linux/sched.h>
+#include <linux/sched/task_stack.h>
#include <as-layout.h>
#include <kern.h>
#include <os.h>
diff --git a/arch/unicore32/kernel/process.c b/arch/unicore32/kernel/process.c
index d58f1600b477..d22c1dc7e39e 100644
--- a/arch/unicore32/kernel/process.c
+++ b/arch/unicore32/kernel/process.c
@@ -15,6 +15,7 @@
#include <linux/sched.h>
#include <linux/sched/debug.h>
#include <linux/sched/task.h>
+#include <linux/sched/task_stack.h>
#include <linux/kernel.h>
#include <linux/mm.h>
#include <linux/stddef.h>
diff --git a/arch/unicore32/kernel/ptrace.c b/arch/unicore32/kernel/ptrace.c
index 9f07c08da050..a102c2b4f358 100644
--- a/arch/unicore32/kernel/ptrace.c
+++ b/arch/unicore32/kernel/ptrace.c
@@ -15,6 +15,7 @@
#include <linux/ptrace.h>
#include <linux/signal.h>
#include <linux/uaccess.h>
+#include <linux/sched/task_stack.h>
/*
* this routine will get a word off of the processes privileged stack.
diff --git a/arch/unicore32/kernel/traps.c b/arch/unicore32/kernel/traps.c
index 506e1a2127c6..5f25b39f04d4 100644
--- a/arch/unicore32/kernel/traps.c
+++ b/arch/unicore32/kernel/traps.c
@@ -16,6 +16,7 @@
#include <linux/signal.h>
#include <linux/sched/signal.h>
#include <linux/sched/debug.h>
+#include <linux/sched/task_stack.h>
#include <linux/spinlock.h>
#include <linux/personality.h>
#include <linux/kallsyms.h>
diff --git a/arch/x86/entry/common.c b/arch/x86/entry/common.c
index b83c61cfd154..370c42c7f046 100644
--- a/arch/x86/entry/common.c
+++ b/arch/x86/entry/common.c
@@ -9,6 +9,7 @@
#include <linux/kernel.h>
#include <linux/sched.h>
+#include <linux/sched/task_stack.h>
#include <linux/mm.h>
#include <linux/smp.h>
#include <linux/errno.h>
diff --git a/arch/x86/entry/vdso/vma.c b/arch/x86/entry/vdso/vma.c
index 10820f6cefbf..d01bd429a49c 100644
--- a/arch/x86/entry/vdso/vma.c
+++ b/arch/x86/entry/vdso/vma.c
@@ -7,6 +7,7 @@
#include <linux/mm.h>
#include <linux/err.h>
#include <linux/sched.h>
+#include <linux/sched/task_stack.h>
#include <linux/slab.h>
#include <linux/init.h>
#include <linux/random.h>
diff --git a/arch/x86/ia32/ia32_aout.c b/arch/x86/ia32/ia32_aout.c
index 7c0a711989d2..8d0879f1d42c 100644
--- a/arch/x86/ia32/ia32_aout.c
+++ b/arch/x86/ia32/ia32_aout.c
@@ -26,6 +26,7 @@
#include <linux/init.h>
#include <linux/jiffies.h>
#include <linux/perf_event.h>
+#include <linux/sched/task_stack.h>
#include <linux/uaccess.h>
#include <asm/pgalloc.h>
diff --git a/arch/x86/ia32/ia32_signal.c b/arch/x86/ia32/ia32_signal.c
index 95c0b4ae09b0..724153797209 100644
--- a/arch/x86/ia32/ia32_signal.c
+++ b/arch/x86/ia32/ia32_signal.c
@@ -9,6 +9,7 @@
*/
#include <linux/sched.h>
+#include <linux/sched/task_stack.h>
#include <linux/mm.h>
#include <linux/smp.h>
#include <linux/kernel.h>
diff --git a/arch/x86/kernel/dumpstack.c b/arch/x86/kernel/dumpstack.c
index 7b9e7e68f316..09d4ac0d2661 100644
--- a/arch/x86/kernel/dumpstack.c
+++ b/arch/x86/kernel/dumpstack.c
@@ -11,6 +11,7 @@
#include <linux/module.h>
#include <linux/ptrace.h>
#include <linux/sched/debug.h>
+#include <linux/sched/task_stack.h>
#include <linux/ftrace.h>
#include <linux/kexec.h>
#include <linux/bug.h>
diff --git a/arch/x86/kernel/fpu/regset.c b/arch/x86/kernel/fpu/regset.c
index c114b132d121..b188b16841e3 100644
--- a/arch/x86/kernel/fpu/regset.c
+++ b/arch/x86/kernel/fpu/regset.c
@@ -5,6 +5,7 @@
#include <asm/fpu/signal.h>
#include <asm/fpu/regset.h>
#include <asm/fpu/xstate.h>
+#include <linux/sched/task_stack.h>
/*
* The xstateregs_active() routine is the same as the regset_fpregs_active() routine,
diff --git a/arch/x86/kernel/ioport.c b/arch/x86/kernel/ioport.c
index 589b3193f102..3f0998c6f59b 100644
--- a/arch/x86/kernel/ioport.c
+++ b/arch/x86/kernel/ioport.c
@@ -4,6 +4,7 @@
*/
#include <linux/sched.h>
+#include <linux/sched/task_stack.h>
#include <linux/kernel.h>
#include <linux/capability.h>
#include <linux/errno.h>
diff --git a/arch/x86/kernel/irq_64.c b/arch/x86/kernel/irq_64.c
index 6b0678a541e2..3be74fbdeff2 100644
--- a/arch/x86/kernel/irq_64.c
+++ b/arch/x86/kernel/irq_64.c
@@ -15,6 +15,7 @@
#include <linux/ftrace.h>
#include <linux/uaccess.h>
#include <linux/smp.h>
+#include <linux/sched/task_stack.h>
#include <asm/io_apic.h>
#include <asm/apic.h>
diff --git a/arch/x86/kernel/perf_regs.c b/arch/x86/kernel/perf_regs.c
index da8cb987b973..587d887f7f17 100644
--- a/arch/x86/kernel/perf_regs.c
+++ b/arch/x86/kernel/perf_regs.c
@@ -1,6 +1,7 @@
#include <linux/errno.h>
#include <linux/kernel.h>
#include <linux/sched.h>
+#include <linux/sched/task_stack.h>
#include <linux/perf_event.h>
#include <linux/bug.h>
#include <linux/stddef.h>
diff --git a/arch/x86/kernel/process.c b/arch/x86/kernel/process.c
index 183d3f12c407..3ed869c96be5 100644
--- a/arch/x86/kernel/process.c
+++ b/arch/x86/kernel/process.c
@@ -10,6 +10,7 @@
#include <linux/sched/idle.h>
#include <linux/sched/debug.h>
#include <linux/sched/task.h>
+#include <linux/sched/task_stack.h>
#include <linux/init.h>
#include <linux/export.h>
#include <linux/pm.h>
diff --git a/arch/x86/kernel/process_32.c b/arch/x86/kernel/process_32.c
index d79ffa47aab8..4c818f8bc135 100644
--- a/arch/x86/kernel/process_32.c
+++ b/arch/x86/kernel/process_32.c
@@ -13,6 +13,7 @@
#include <linux/errno.h>
#include <linux/sched.h>
#include <linux/sched/task.h>
+#include <linux/sched/task_stack.h>
#include <linux/fs.h>
#include <linux/kernel.h>
#include <linux/mm.h>
diff --git a/arch/x86/kernel/process_64.c b/arch/x86/kernel/process_64.c
index 124f5652ae3c..d6b784a5520d 100644
--- a/arch/x86/kernel/process_64.c
+++ b/arch/x86/kernel/process_64.c
@@ -18,6 +18,7 @@
#include <linux/errno.h>
#include <linux/sched.h>
#include <linux/sched/task.h>
+#include <linux/sched/task_stack.h>
#include <linux/fs.h>
#include <linux/kernel.h>
#include <linux/mm.h>
diff --git a/arch/x86/kernel/ptrace.c b/arch/x86/kernel/ptrace.c
index 9cc7d5a330ef..2364b23ea3e5 100644
--- a/arch/x86/kernel/ptrace.c
+++ b/arch/x86/kernel/ptrace.c
@@ -6,6 +6,7 @@
#include <linux/kernel.h>
#include <linux/sched.h>
+#include <linux/sched/task_stack.h>
#include <linux/mm.h>
#include <linux/smp.h>
#include <linux/errno.h>
diff --git a/arch/x86/kernel/signal.c b/arch/x86/kernel/signal.c
index 763af1d0de64..396c042e9d0e 100644
--- a/arch/x86/kernel/signal.c
+++ b/arch/x86/kernel/signal.c
@@ -10,6 +10,7 @@
#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
#include <linux/sched.h>
+#include <linux/sched/task_stack.h>
#include <linux/mm.h>
#include <linux/smp.h>
#include <linux/kernel.h>
diff --git a/arch/x86/kernel/smpboot.c b/arch/x86/kernel/smpboot.c
index ab848319c17c..4087196f92a9 100644
--- a/arch/x86/kernel/smpboot.c
+++ b/arch/x86/kernel/smpboot.c
@@ -47,6 +47,7 @@
#include <linux/sched.h>
#include <linux/sched/topology.h>
#include <linux/sched/hotplug.h>
+#include <linux/sched/task_stack.h>
#include <linux/percpu.h>
#include <linux/bootmem.h>
#include <linux/err.h>
diff --git a/arch/x86/kernel/stacktrace.c b/arch/x86/kernel/stacktrace.c
index 330cae0025d0..8e2b79b88e51 100644
--- a/arch/x86/kernel/stacktrace.c
+++ b/arch/x86/kernel/stacktrace.c
@@ -5,6 +5,7 @@
*/
#include <linux/sched.h>
#include <linux/sched/debug.h>
+#include <linux/sched/task_stack.h>
#include <linux/stacktrace.h>
#include <linux/export.h>
#include <linux/uaccess.h>
diff --git a/arch/x86/kernel/step.c b/arch/x86/kernel/step.c
index a23ce84a3f6c..f07f83b3611b 100644
--- a/arch/x86/kernel/step.c
+++ b/arch/x86/kernel/step.c
@@ -2,6 +2,7 @@
* x86 single-step support code, common to 32-bit and 64-bit.
*/
#include <linux/sched.h>
+#include <linux/sched/task_stack.h>
#include <linux/mm.h>
#include <linux/ptrace.h>
#include <asm/desc.h>
diff --git a/arch/x86/kernel/traps.c b/arch/x86/kernel/traps.c
index bf0c6d049080..c11c15c8699e 100644
--- a/arch/x86/kernel/traps.c
+++ b/arch/x86/kernel/traps.c
@@ -29,6 +29,7 @@
#include <linux/errno.h>
#include <linux/kexec.h>
#include <linux/sched.h>
+#include <linux/sched/task_stack.h>
#include <linux/timer.h>
#include <linux/init.h>
#include <linux/bug.h>
diff --git a/arch/x86/kernel/unwind_frame.c b/arch/x86/kernel/unwind_frame.c
index 7c0abdc9a732..478d15dbaee4 100644
--- a/arch/x86/kernel/unwind_frame.c
+++ b/arch/x86/kernel/unwind_frame.c
@@ -1,5 +1,6 @@
#include <linux/sched.h>
#include <linux/sched/task.h>
+#include <linux/sched/task_stack.h>
#include <asm/ptrace.h>
#include <asm/bitops.h>
#include <asm/stacktrace.h>
diff --git a/arch/x86/kernel/vm86_32.c b/arch/x86/kernel/vm86_32.c
index ec5d7545e6dc..de2bfe6e75a6 100644
--- a/arch/x86/kernel/vm86_32.c
+++ b/arch/x86/kernel/vm86_32.c
@@ -35,6 +35,7 @@
#include <linux/interrupt.h>
#include <linux/syscalls.h>
#include <linux/sched.h>
+#include <linux/sched/task_stack.h>
#include <linux/kernel.h>
#include <linux/signal.h>
#include <linux/string.h>
diff --git a/arch/x86/mm/fault.c b/arch/x86/mm/fault.c
index e3254ca0eec4..428e31763cb9 100644
--- a/arch/x86/mm/fault.c
+++ b/arch/x86/mm/fault.c
@@ -4,6 +4,7 @@
* Copyright (C) 2008-2009, Red Hat Inc., Ingo Molnar
*/
#include <linux/sched.h> /* test_thread_flag(), ... */
+#include <linux/sched/task_stack.h> /* task_stack_*(), ... */
#include <linux/kdebug.h> /* oops_begin/end, ... */
#include <linux/extable.h> /* search_exception_tables */
#include <linux/bootmem.h> /* max_low_pfn */
diff --git a/arch/xtensa/kernel/process.c b/arch/xtensa/kernel/process.c
index af33f9d4c624..58f96d1230d4 100644
--- a/arch/xtensa/kernel/process.c
+++ b/arch/xtensa/kernel/process.c
@@ -19,6 +19,7 @@
#include <linux/sched.h>
#include <linux/sched/debug.h>
#include <linux/sched/task.h>
+#include <linux/sched/task_stack.h>
#include <linux/kernel.h>
#include <linux/mm.h>
#include <linux/smp.h>
diff --git a/arch/xtensa/kernel/ptrace.c b/arch/xtensa/kernel/ptrace.c
index 32519b71d914..e0f583fed06a 100644
--- a/arch/xtensa/kernel/ptrace.c
+++ b/arch/xtensa/kernel/ptrace.c
@@ -20,6 +20,7 @@
#include <linux/perf_event.h>
#include <linux/ptrace.h>
#include <linux/sched.h>
+#include <linux/sched/task_stack.h>
#include <linux/security.h>
#include <linux/signal.h>
#include <linux/smp.h>
diff --git a/arch/xtensa/kernel/signal.c b/arch/xtensa/kernel/signal.c
index c41294745731..70a131945443 100644
--- a/arch/xtensa/kernel/signal.c
+++ b/arch/xtensa/kernel/signal.c
@@ -20,6 +20,7 @@
#include <linux/ptrace.h>
#include <linux/personality.h>
#include <linux/tracehook.h>
+#include <linux/sched/task_stack.h>
#include <asm/ucontext.h>
#include <linux/uaccess.h>
diff --git a/arch/xtensa/kernel/smp.c b/arch/xtensa/kernel/smp.c
index 2b5a7ee12900..83428cc7b0bc 100644
--- a/arch/xtensa/kernel/smp.c
+++ b/arch/xtensa/kernel/smp.c
@@ -22,6 +22,7 @@
#include <linux/kdebug.h>
#include <linux/module.h>
#include <linux/sched/hotplug.h>
+#include <linux/sched/task_stack.h>
#include <linux/reboot.h>
#include <linux/seq_file.h>
#include <linux/smp.h>
diff --git a/block/blk-map.c b/block/blk-map.c
index 0acb6640ead7..c1ed922d18aa 100644
--- a/block/blk-map.c
+++ b/block/blk-map.c
@@ -2,6 +2,7 @@
* Functions related to mapping data to requests
*/
#include <linux/kernel.h>
+#include <linux/sched/task_stack.h>
#include <linux/module.h>
#include <linux/bio.h>
#include <linux/blkdev.h>
diff --git a/drivers/hv/vmbus_drv.c b/drivers/hv/vmbus_drv.c
index 230c62e7f567..3926c745182b 100644
--- a/drivers/hv/vmbus_drv.c
+++ b/drivers/hv/vmbus_drv.c
@@ -34,6 +34,8 @@
#include <linux/kernel_stat.h>
#include <linux/clockchips.h>
#include <linux/cpu.h>
+#include <linux/sched/task_stack.h>
+
#include <asm/hyperv.h>
#include <asm/hypervisor.h>
#include <asm/mshyperv.h>
diff --git a/drivers/ide/ide-cd.c b/drivers/ide/ide-cd.c
index 9cbd217bc0c9..191ccb9d6b65 100644
--- a/drivers/ide/ide-cd.c
+++ b/drivers/ide/ide-cd.c
@@ -28,6 +28,7 @@
#include <linux/module.h>
#include <linux/types.h>
#include <linux/kernel.h>
+#include <linux/sched/task_stack.h>
#include <linux/delay.h>
#include <linux/timer.h>
#include <linux/seq_file.h>
diff --git a/drivers/md/bcache/closure.h b/drivers/md/bcache/closure.h
index 9b2fe2d3e3a9..1ec84ca81146 100644
--- a/drivers/md/bcache/closure.h
+++ b/drivers/md/bcache/closure.h
@@ -3,6 +3,7 @@
#include <linux/llist.h>
#include <linux/sched.h>
+#include <linux/sched/task_stack.h>
#include <linux/workqueue.h>
/*
diff --git a/drivers/misc/lkdtm_usercopy.c b/drivers/misc/lkdtm_usercopy.c
index 1dd611423d8b..df6ac985fbb5 100644
--- a/drivers/misc/lkdtm_usercopy.c
+++ b/drivers/misc/lkdtm_usercopy.c
@@ -5,6 +5,7 @@
#include "lkdtm.h"
#include <linux/slab.h>
#include <linux/vmalloc.h>
+#include <linux/sched/task_stack.h>
#include <linux/mman.h>
#include <linux/uaccess.h>
#include <asm/cacheflush.h>
diff --git a/drivers/mtd/nand/gpmi-nand/gpmi-nand.c b/drivers/mtd/nand/gpmi-nand/gpmi-nand.c
index 6c062b8251d2..d52139635b67 100644
--- a/drivers/mtd/nand/gpmi-nand/gpmi-nand.c
+++ b/drivers/mtd/nand/gpmi-nand/gpmi-nand.c
@@ -20,6 +20,7 @@
*/
#include <linux/clk.h>
#include <linux/slab.h>
+#include <linux/sched/task_stack.h>
#include <linux/interrupt.h>
#include <linux/module.h>
#include <linux/mtd/partitions.h>
diff --git a/fs/binfmt_aout.c b/fs/binfmt_aout.c
index 2a59139f520b..9be82c4e14a4 100644
--- a/fs/binfmt_aout.c
+++ b/fs/binfmt_aout.c
@@ -25,6 +25,7 @@
#include <linux/init.h>
#include <linux/coredump.h>
#include <linux/slab.h>
+#include <linux/sched/task_stack.h>
#include <linux/uaccess.h>
#include <asm/cacheflush.h>
diff --git a/fs/binfmt_elf.c b/fs/binfmt_elf.c
index bab46e06731b..06a17e4ee221 100644
--- a/fs/binfmt_elf.c
+++ b/fs/binfmt_elf.c
@@ -36,6 +36,7 @@
#include <linux/coredump.h>
#include <linux/sched.h>
#include <linux/sched/coredump.h>
+#include <linux/sched/task_stack.h>
#include <linux/cred.h>
#include <linux/dax.h>
#include <linux/uaccess.h>
diff --git a/fs/binfmt_elf_fdpic.c b/fs/binfmt_elf_fdpic.c
index 222873bb689c..6103a8149ccd 100644
--- a/fs/binfmt_elf_fdpic.c
+++ b/fs/binfmt_elf_fdpic.c
@@ -15,6 +15,8 @@
#include <linux/fs.h>
#include <linux/stat.h>
#include <linux/sched.h>
+#include <linux/sched/coredump.h>
+#include <linux/sched/task_stack.h>
#include <linux/mm.h>
#include <linux/mman.h>
#include <linux/errno.h>
@@ -35,7 +37,6 @@
#include <linux/elf-fdpic.h>
#include <linux/elfcore.h>
#include <linux/coredump.h>
-#include <linux/sched/coredump.h>
#include <linux/dax.h>
#include <linux/uaccess.h>
diff --git a/fs/binfmt_flat.c b/fs/binfmt_flat.c
index 9b2917a30294..2edcefc0a294 100644
--- a/fs/binfmt_flat.c
+++ b/fs/binfmt_flat.c
@@ -19,6 +19,7 @@
#include <linux/kernel.h>
#include <linux/sched.h>
+#include <linux/sched/task_stack.h>
#include <linux/mm.h>
#include <linux/mman.h>
#include <linux/errno.h>
diff --git a/fs/coredump.c b/fs/coredump.c
index c74ab43b8383..592683711c64 100644
--- a/fs/coredump.c
+++ b/fs/coredump.c
@@ -18,6 +18,7 @@
#include <linux/coredump.h>
#include <linux/sched/coredump.h>
#include <linux/sched/signal.h>
+#include <linux/sched/task_stack.h>
#include <linux/utsname.h>
#include <linux/pid_namespace.h>
#include <linux/module.h>
diff --git a/include/linux/elfcore.h b/include/linux/elfcore.h
index 698d51a0eea3..c8240a12c42d 100644
--- a/include/linux/elfcore.h
+++ b/include/linux/elfcore.h
@@ -3,6 +3,8 @@
#include <linux/user.h>
#include <linux/bug.h>
+#include <linux/sched/task_stack.h>
+
#include <asm/elf.h>
#include <uapi/linux/elfcore.h>
diff --git a/include/linux/perf_regs.h b/include/linux/perf_regs.h
index a5f98d53d732..9b7dd59fe28d 100644
--- a/include/linux/perf_regs.h
+++ b/include/linux/perf_regs.h
@@ -1,6 +1,8 @@
#ifndef _LINUX_PERF_REGS_H
#define _LINUX_PERF_REGS_H
+#include <linux/sched/task_stack.h>
+
struct perf_regs {
__u64 abi;
struct pt_regs *regs;
diff --git a/include/linux/sched.h b/include/linux/sched.h
index e2da415fdb48..10fe373612fb 100644
--- a/include/linux/sched.h
+++ b/include/linux/sched.h
@@ -1440,6 +1440,15 @@ union thread_union {
unsigned long stack[THREAD_SIZE/sizeof(long)];
};
+#ifdef CONFIG_THREAD_INFO_IN_TASK
+static inline struct thread_info *task_thread_info(struct task_struct *task)
+{
+ return &task->thread_info;
+}
+#elif !defined(__HAVE_THREAD_FUNCTIONS)
+# define task_thread_info(task) ((struct thread_info *)(task)->stack)
+#endif
+
#ifndef __HAVE_ARCH_KSTACK_END
static inline int kstack_end(void *addr)
{
@@ -1530,112 +1539,6 @@ static inline void task_unlock(struct task_struct *p)
spin_unlock(&p->alloc_lock);
}
-#ifdef CONFIG_THREAD_INFO_IN_TASK
-
-static inline struct thread_info *task_thread_info(struct task_struct *task)
-{
- return &task->thread_info;
-}
-
-/*
- * When accessing the stack of a non-current task that might exit, use
- * try_get_task_stack() instead. task_stack_page will return a pointer
- * that could get freed out from under you.
- */
-static inline void *task_stack_page(const struct task_struct *task)
-{
- return task->stack;
-}
-
-#define setup_thread_stack(new,old) do { } while(0)
-
-static inline unsigned long *end_of_stack(const struct task_struct *task)
-{
- return task->stack;
-}
-
-#elif !defined(__HAVE_THREAD_FUNCTIONS)
-
-#define task_thread_info(task) ((struct thread_info *)(task)->stack)
-#define task_stack_page(task) ((void *)(task)->stack)
-
-static inline void setup_thread_stack(struct task_struct *p, struct task_struct *org)
-{
- *task_thread_info(p) = *task_thread_info(org);
- task_thread_info(p)->task = p;
-}
-
-/*
- * Return the address of the last usable long on the stack.
- *
- * When the stack grows down, this is just above the thread
- * info struct. Going any lower will corrupt the threadinfo.
- *
- * When the stack grows up, this is the highest address.
- * Beyond that position, we corrupt data on the next page.
- */
-static inline unsigned long *end_of_stack(struct task_struct *p)
-{
-#ifdef CONFIG_STACK_GROWSUP
- return (unsigned long *)((unsigned long)task_thread_info(p) + THREAD_SIZE) - 1;
-#else
- return (unsigned long *)(task_thread_info(p) + 1);
-#endif
-}
-
-#endif
-
-#ifdef CONFIG_THREAD_INFO_IN_TASK
-static inline void *try_get_task_stack(struct task_struct *tsk)
-{
- return atomic_inc_not_zero(&tsk->stack_refcount) ?
- task_stack_page(tsk) : NULL;
-}
-
-extern void put_task_stack(struct task_struct *tsk);
-#else
-static inline void *try_get_task_stack(struct task_struct *tsk)
-{
- return task_stack_page(tsk);
-}
-
-static inline void put_task_stack(struct task_struct *tsk) {}
-#endif
-
-#define task_stack_end_corrupted(task) \
- (*(end_of_stack(task)) != STACK_END_MAGIC)
-
-static inline int object_is_on_stack(void *obj)
-{
- void *stack = task_stack_page(current);
-
- return (obj >= stack) && (obj < (stack + THREAD_SIZE));
-}
-
-extern void thread_stack_cache_init(void);
-
-#ifdef CONFIG_DEBUG_STACK_USAGE
-static inline unsigned long stack_not_used(struct task_struct *p)
-{
- unsigned long *n = end_of_stack(p);
-
- do { /* Skip over canary */
-# ifdef CONFIG_STACK_GROWSUP
- n--;
-# else
- n++;
-# endif
- } while (!*n);
-
-# ifdef CONFIG_STACK_GROWSUP
- return (unsigned long)end_of_stack(p) - (unsigned long)n;
-# else
- return (unsigned long)n - (unsigned long)end_of_stack(p);
-# endif
-}
-#endif
-extern void set_task_stack_end_magic(struct task_struct *tsk);
-
/* set thread flags in other task's structures
* - see asm/thread_info.h for TIF_xxxx flags available
*/
diff --git a/include/linux/sched/task_stack.h b/include/linux/sched/task_stack.h
new file mode 100644
index 000000000000..1f4858a1e201
--- /dev/null
+++ b/include/linux/sched/task_stack.h
@@ -0,0 +1,110 @@
+#ifndef _LINUX_SCHED_TASK_STACK_H
+#define _LINUX_SCHED_TASK_STACK_H
+
+/*
+ * task->stack (kernel stack) handling interfaces:
+ */
+
+#include <linux/sched.h>
+
+#ifdef CONFIG_THREAD_INFO_IN_TASK
+
+/*
+ * When accessing the stack of a non-current task that might exit, use
+ * try_get_task_stack() instead. task_stack_page will return a pointer
+ * that could get freed out from under you.
+ */
+static inline void *task_stack_page(const struct task_struct *task)
+{
+ return task->stack;
+}
+
+#define setup_thread_stack(new,old) do { } while(0)
+
+static inline unsigned long *end_of_stack(const struct task_struct *task)
+{
+ return task->stack;
+}
+
+#elif !defined(__HAVE_THREAD_FUNCTIONS)
+
+#define task_stack_page(task) ((void *)(task)->stack)
+
+static inline void setup_thread_stack(struct task_struct *p, struct task_struct *org)
+{
+ *task_thread_info(p) = *task_thread_info(org);
+ task_thread_info(p)->task = p;
+}
+
+/*
+ * Return the address of the last usable long on the stack.
+ *
+ * When the stack grows down, this is just above the thread
+ * info struct. Going any lower will corrupt the threadinfo.
+ *
+ * When the stack grows up, this is the highest address.
+ * Beyond that position, we corrupt data on the next page.
+ */
+static inline unsigned long *end_of_stack(struct task_struct *p)
+{
+#ifdef CONFIG_STACK_GROWSUP
+ return (unsigned long *)((unsigned long)task_thread_info(p) + THREAD_SIZE) - 1;
+#else
+ return (unsigned long *)(task_thread_info(p) + 1);
+#endif
+}
+
+#endif
+
+#ifdef CONFIG_THREAD_INFO_IN_TASK
+static inline void *try_get_task_stack(struct task_struct *tsk)
+{
+ return atomic_inc_not_zero(&tsk->stack_refcount) ?
+ task_stack_page(tsk) : NULL;
+}
+
+extern void put_task_stack(struct task_struct *tsk);
+#else
+static inline void *try_get_task_stack(struct task_struct *tsk)
+{
+ return task_stack_page(tsk);
+}
+
+static inline void put_task_stack(struct task_struct *tsk) {}
+#endif
+
+#define task_stack_end_corrupted(task) \
+ (*(end_of_stack(task)) != STACK_END_MAGIC)
+
+static inline int object_is_on_stack(void *obj)
+{
+ void *stack = task_stack_page(current);
+
+ return (obj >= stack) && (obj < (stack + THREAD_SIZE));
+}
+
+extern void thread_stack_cache_init(void);
+
+#ifdef CONFIG_DEBUG_STACK_USAGE
+static inline unsigned long stack_not_used(struct task_struct *p)
+{
+ unsigned long *n = end_of_stack(p);
+
+ do { /* Skip over canary */
+# ifdef CONFIG_STACK_GROWSUP
+ n--;
+# else
+ n++;
+# endif
+ } while (!*n);
+
+# ifdef CONFIG_STACK_GROWSUP
+ return (unsigned long)end_of_stack(p) - (unsigned long)n;
+# else
+ return (unsigned long)n - (unsigned long)end_of_stack(p);
+# endif
+}
+#endif
+extern void set_task_stack_end_magic(struct task_struct *tsk);
+
+#endif /* _LINUX_SCHED_TASK_STACK_H */
diff --git a/init/main.c b/init/main.c
index 642a9b2cded7..fcb59cd7efd2 100644
--- a/init/main.c
+++ b/init/main.c
@@ -77,6 +77,7 @@
#include <linux/elevator.h>
#include <linux/sched_clock.h>
#include <linux/sched/task.h>
+#include <linux/sched/task_stack.h>
#include <linux/context_tracking.h>
#include <linux/random.h>
#include <linux/list.h>
diff --git a/kernel/events/callchain.c b/kernel/events/callchain.c
index e9fdb5203de5..c04917cad1bf 100644
--- a/kernel/events/callchain.c
+++ b/kernel/events/callchain.c
@@ -11,6 +11,8 @@
#include <linux/perf_event.h>
#include <linux/slab.h>
+#include <linux/sched/task_stack.h>
+
#include "internal.h"
struct callchain_cpus_entries {
diff --git a/kernel/exit.c b/kernel/exit.c
index 5f192918fa5c..3f4bd6e1cffb 100644
--- a/kernel/exit.c
+++ b/kernel/exit.c
@@ -10,6 +10,7 @@
#include <linux/sched/mm.h>
#include <linux/sched/stat.h>
#include <linux/sched/task.h>
+#include <linux/sched/task_stack.h>
#include <linux/interrupt.h>
#include <linux/module.h>
#include <linux/capability.h>
diff --git a/kernel/fork.c b/kernel/fork.c
index d5802d7e9bdb..22dca155b27b 100644
--- a/kernel/fork.c
+++ b/kernel/fork.c
@@ -19,6 +19,7 @@
#include <linux/sched/numa_balancing.h>
#include <linux/sched/stat.h>
#include <linux/sched/task.h>
+#include <linux/sched/task_stack.h>
#include <linux/rtmutex.h>
#include <linux/init.h>
#include <linux/unistd.h>
diff --git a/kernel/printk/printk.c b/kernel/printk/printk.c
index 8681d7455c48..773b3f9d4991 100644
--- a/kernel/printk/printk.c
+++ b/kernel/printk/printk.c
@@ -47,6 +47,7 @@
#include <linux/uio.h>
#include <linux/sched/clock.h>
#include <linux/sched/debug.h>
+#include <linux/sched/task_stack.h>
#include <linux/uaccess.h>
#include <asm/sections.h>
diff --git a/kernel/sched/sched.h b/kernel/sched/sched.h
index 6b7155ae5c33..4e2fec3f12a0 100644
--- a/kernel/sched/sched.h
+++ b/kernel/sched/sched.h
@@ -15,6 +15,7 @@
#include <linux/sched/debug.h>
#include <linux/sched/hotplug.h>
#include <linux/sched/task.h>
+#include <linux/sched/task_stack.h>
#include <linux/u64_stats_sync.h>
#include <linux/kernel_stat.h>
diff --git a/kernel/seccomp.c b/kernel/seccomp.c
index f7ce79a46050..c1377291a971 100644
--- a/kernel/seccomp.c
+++ b/kernel/seccomp.c
@@ -17,6 +17,7 @@
#include <linux/audit.h>
#include <linux/compat.h>
#include <linux/sched.h>
+#include <linux/sched/task_stack.h>
#include <linux/seccomp.h>
#include <linux/slab.h>
#include <linux/syscalls.h>
diff --git a/kernel/signal.c b/kernel/signal.c
index 55310cf15e6f..dce87889527a 100644
--- a/kernel/signal.c
+++ b/kernel/signal.c
@@ -17,6 +17,7 @@
#include <linux/sched/user.h>
#include <linux/sched/debug.h>
#include <linux/sched/task.h>
+#include <linux/sched/task_stack.h>
#include <linux/fs.h>
#include <linux/tty.h>
#include <linux/binfmts.h>
diff --git a/kernel/trace/trace_stack.c b/kernel/trace/trace_stack.c
index 2a1abbaca10e..1d68b5b7ad41 100644
--- a/kernel/trace/trace_stack.c
+++ b/kernel/trace/trace_stack.c
@@ -2,6 +2,7 @@
* Copyright (C) 2008 Steven Rostedt <srostedt@redhat.com>
*
*/
+#include <linux/sched/task_stack.h>
#include <linux/stacktrace.h>
#include <linux/kallsyms.h>
#include <linux/seq_file.h>
diff --git a/lib/debugobjects.c b/lib/debugobjects.c
index 04c1ef717fe0..b0590b1a8f16 100644
--- a/lib/debugobjects.c
+++ b/lib/debugobjects.c
@@ -13,6 +13,7 @@
#include <linux/debugobjects.h>
#include <linux/interrupt.h>
#include <linux/sched.h>
+#include <linux/sched/task_stack.h>
#include <linux/seq_file.h>
#include <linux/debugfs.h>
#include <linux/slab.h>
diff --git a/lib/dma-debug.c b/lib/dma-debug.c
index ede0ea87ea59..500e2f5eb9a6 100644
--- a/lib/dma-debug.c
+++ b/lib/dma-debug.c
@@ -17,6 +17,7 @@
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
+#include <linux/sched/task_stack.h>
#include <linux/scatterlist.h>
#include <linux/dma-mapping.h>
#include <linux/sched/task.h>
diff --git a/lib/syscall.c b/lib/syscall.c
index 63239e097b13..17d5ff5fa6a3 100644
--- a/lib/syscall.c
+++ b/lib/syscall.c
@@ -1,5 +1,6 @@
#include <linux/ptrace.h>
#include <linux/sched.h>
+#include <linux/sched/task_stack.h>
#include <linux/export.h>
#include <asm/syscall.h>
diff --git a/mm/kasan/kasan.c b/mm/kasan/kasan.c
index 37d39f7f6260..371affe4466f 100644
--- a/mm/kasan/kasan.c
+++ b/mm/kasan/kasan.c
@@ -29,6 +29,7 @@
#include <linux/module.h>
#include <linux/printk.h>
#include <linux/sched.h>
+#include <linux/sched/task_stack.h>
#include <linux/slab.h>
#include <linux/stacktrace.h>
#include <linux/string.h>
diff --git a/mm/kmemleak.c b/mm/kmemleak.c
index a3970573359e..26c874e90b12 100644
--- a/mm/kmemleak.c
+++ b/mm/kmemleak.c
@@ -75,6 +75,7 @@
#include <linux/list.h>
#include <linux/sched/signal.h>
#include <linux/sched/task.h>
+#include <linux/sched/task_stack.h>
#include <linux/jiffies.h>
#include <linux/delay.h>
#include <linux/export.h>
diff --git a/mm/usercopy.c b/mm/usercopy.c
index 2ce59b236d23..4a13acbbb145 100644
--- a/mm/usercopy.c
+++ b/mm/usercopy.c
@@ -17,11 +17,8 @@
#include <linux/mm.h>
#include <linux/slab.h>
#include <linux/sched.h>
-<<<<<<< HEAD
-=======
#include <linux/sched/task.h>
#include <linux/sched/task_stack.h>
->>>>>>> 9ecfbdbd2d46... fork.h fixes
#include <asm/sections.h>
enum {
diff --git a/mm/util.c b/mm/util.c
index f94dc2fd0609..7c8cb3dc865e 100644
--- a/mm/util.c
+++ b/mm/util.c
@@ -6,6 +6,7 @@
#include <linux/err.h>
#include <linux/sched.h>
#include <linux/sched/mm.h>
+#include <linux/sched/task_stack.h>
#include <linux/security.h>
#include <linux/swap.h>
#include <linux/swapops.h>
--
2.7.4
^ permalink raw reply related [flat|nested] 119+ messages in thread
* [PATCH 58/89] sched/headers: Move the 'root_task_group' declaration to <linux/sched/autogroup.h>
2017-02-06 13:28 [PATCH 00/89] Major reorganization of <linux/sched.h> Ingo Molnar
` (56 preceding siblings ...)
2017-02-06 13:29 ` [PATCH 57/89] sched/headers: Split <linux/sched/task_stack> out of <linux/sched.h> Ingo Molnar
@ 2017-02-06 13:29 ` Ingo Molnar
2017-02-06 14:52 ` Peter Zijlstra
2017-02-06 13:29 ` [PATCH 59/89] sched/core: Move the get_preempt_disable_ip() inline to sched/core.c Ingo Molnar
` (32 subsequent siblings)
90 siblings, 1 reply; 119+ messages in thread
From: Ingo Molnar @ 2017-02-06 13:29 UTC (permalink / raw)
To: linux-kernel
Cc: Andrew Morton, Linus Torvalds, Mike Galbraith, Oleg Nesterov,
Peter Zijlstra, Thomas Gleixner
Also remove the duplicate declaration from <linux/init_task.h>.
( That declaration was originally duplicated for dependency hell reasons,
but there's no problem including the much smaller <linux/sched/autogroup.h>
header now, to pick up the right prototype. )
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
include/linux/init_task.h | 3 +--
include/linux/sched.h | 4 ----
include/linux/sched/autogroup.h | 5 +++++
kernel/sched/sched.h | 1 +
4 files changed, 7 insertions(+), 6 deletions(-)
diff --git a/include/linux/init_task.h b/include/linux/init_task.h
index 3a85d61f7614..fda57da8731b 100644
--- a/include/linux/init_task.h
+++ b/include/linux/init_task.h
@@ -12,6 +12,7 @@
#include <linux/securebits.h>
#include <linux/seqlock.h>
#include <linux/rbtree.h>
+#include <linux/sched/autogroup.h>
#include <net/net_namespace.h>
#include <linux/sched/rt.h>
@@ -149,8 +150,6 @@ extern struct group_info init_groups;
extern struct cred init_cred;
-extern struct task_group root_task_group;
-
#ifdef CONFIG_CGROUP_SCHED
# define INIT_CGROUP_SCHED(tsk) \
.sched_task_group = &root_task_group,
diff --git a/include/linux/sched.h b/include/linux/sched.h
index 10fe373612fb..eed8d9148b23 100644
--- a/include/linux/sched.h
+++ b/include/linux/sched.h
@@ -1706,10 +1706,6 @@ static inline void set_task_cpu(struct task_struct *p, unsigned int cpu)
extern long sched_setaffinity(pid_t pid, const struct cpumask *new_mask);
extern long sched_getaffinity(pid_t pid, struct cpumask *mask);
-#ifdef CONFIG_CGROUP_SCHED
-extern struct task_group root_task_group;
-#endif /* CONFIG_CGROUP_SCHED */
-
#ifndef TASK_SIZE_OF
#define TASK_SIZE_OF(tsk) TASK_SIZE
#endif
diff --git a/include/linux/sched/autogroup.h b/include/linux/sched/autogroup.h
index c0810fe196f4..55cd496df884 100644
--- a/include/linux/sched/autogroup.h
+++ b/include/linux/sched/autogroup.h
@@ -3,6 +3,7 @@
struct signal_struct;
struct task_struct;
+struct task_group;
struct seq_file;
#ifdef CONFIG_SCHED_AUTOGROUP
@@ -23,4 +24,8 @@ static inline void sched_autogroup_exit(struct signal_struct *sig) { }
static inline void sched_autogroup_exit_task(struct task_struct *p) { }
#endif
+#ifdef CONFIG_CGROUP_SCHED
+extern struct task_group root_task_group;
+#endif /* CONFIG_CGROUP_SCHED */
+
#endif /* _LINUX_SCHED_AUTOGROUP_H */
diff --git a/kernel/sched/sched.h b/kernel/sched/sched.h
index 4e2fec3f12a0..b1f1c8443837 100644
--- a/kernel/sched/sched.h
+++ b/kernel/sched/sched.h
@@ -1,5 +1,6 @@
#include <linux/sched.h>
+#include <linux/sched/autogroup.h>
#include <linux/sched/sysctl.h>
#include <linux/sched/topology.h>
#include <linux/sched/rt.h>
--
2.7.4
^ permalink raw reply related [flat|nested] 119+ messages in thread
* [PATCH 59/89] sched/core: Move the get_preempt_disable_ip() inline to sched/core.c
2017-02-06 13:28 [PATCH 00/89] Major reorganization of <linux/sched.h> Ingo Molnar
` (57 preceding siblings ...)
2017-02-06 13:29 ` [PATCH 58/89] sched/headers: Move the 'root_task_group' declaration to <linux/sched/autogroup.h> Ingo Molnar
@ 2017-02-06 13:29 ` Ingo Molnar
2017-02-06 13:29 ` [PATCH 60/89] signals: Split out <linux/signal_types.h> from <linux/signal.h> Ingo Molnar
` (31 subsequent siblings)
90 siblings, 0 replies; 119+ messages in thread
From: Ingo Molnar @ 2017-02-06 13:29 UTC (permalink / raw)
To: linux-kernel
Cc: Andrew Morton, Linus Torvalds, Mike Galbraith, Oleg Nesterov,
Peter Zijlstra, Thomas Gleixner
It's defined in <linux/sched.h>, but nothing outside the scheduler
uses it - so move it to the sched/core.c usage site.
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
include/linux/sched.h | 9 ---------
kernel/sched/core.c | 9 +++++++++
2 files changed, 9 insertions(+), 9 deletions(-)
diff --git a/include/linux/sched.h b/include/linux/sched.h
index eed8d9148b23..c53bb89bfef7 100644
--- a/include/linux/sched.h
+++ b/include/linux/sched.h
@@ -1623,15 +1623,6 @@ static inline void cond_resched_rcu(void)
#endif
}
-static inline unsigned long get_preempt_disable_ip(struct task_struct *p)
-{
-#ifdef CONFIG_DEBUG_PREEMPT
- return p->preempt_disable_ip;
-#else
- return 0;
-#endif
-}
-
/*
* Does a critical section need to be broken due to another
* task waiting?: (technically does not depend on CONFIG_PREEMPT,
diff --git a/kernel/sched/core.c b/kernel/sched/core.c
index e37d2097dd87..bf2448b4dd98 100644
--- a/kernel/sched/core.c
+++ b/kernel/sched/core.c
@@ -3212,6 +3212,15 @@ static inline void preempt_latency_start(int val) { }
static inline void preempt_latency_stop(int val) { }
#endif
+static inline unsigned long get_preempt_disable_ip(struct task_struct *p)
+{
+#ifdef CONFIG_DEBUG_PREEMPT
+ return p->preempt_disable_ip;
+#else
+ return 0;
+#endif
+}
+
/*
* Print scheduling while atomic bug:
*/
--
2.7.4
^ permalink raw reply related [flat|nested] 119+ messages in thread
* [PATCH 60/89] signals: Split out <linux/signal_types.h> from <linux/signal.h>
2017-02-06 13:28 [PATCH 00/89] Major reorganization of <linux/sched.h> Ingo Molnar
` (58 preceding siblings ...)
2017-02-06 13:29 ` [PATCH 59/89] sched/core: Move the get_preempt_disable_ip() inline to sched/core.c Ingo Molnar
@ 2017-02-06 13:29 ` Ingo Molnar
2017-02-06 13:29 ` [PATCH 61/89] sched/headers: Reduce <linux/sched.h> signal API dependency Ingo Molnar
` (30 subsequent siblings)
90 siblings, 0 replies; 119+ messages in thread
From: Ingo Molnar @ 2017-02-06 13:29 UTC (permalink / raw)
To: linux-kernel
Cc: Andrew Morton, Linus Torvalds, Mike Galbraith, Oleg Nesterov,
Peter Zijlstra, Thomas Gleixner
Separate out just the pure data types - sched.h will be able to use
this reduced size header.
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
arch/mips/include/asm/abi.h | 2 ++
include/linux/signal.h | 57 +------------------------------------------------------
include/linux/signal_types.h | 66 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
3 files changed, 69 insertions(+), 56 deletions(-)
diff --git a/arch/mips/include/asm/abi.h b/arch/mips/include/asm/abi.h
index 940760844e2f..dba7f4b6bebf 100644
--- a/arch/mips/include/asm/abi.h
+++ b/arch/mips/include/asm/abi.h
@@ -9,6 +9,8 @@
#ifndef _ASM_ABI_H
#define _ASM_ABI_H
+#include <linux/signal_types.h>
+
#include <asm/signal.h>
#include <asm/siginfo.h>
#include <asm/vdso.h>
diff --git a/include/linux/signal.h b/include/linux/signal.h
index 5308304993be..94ad6eea9550 100644
--- a/include/linux/signal.h
+++ b/include/linux/signal.h
@@ -1,32 +1,13 @@
#ifndef _LINUX_SIGNAL_H
#define _LINUX_SIGNAL_H
-#include <linux/list.h>
#include <linux/bug.h>
-#include <uapi/linux/signal.h>
+#include <linux/signal_types.h>
struct task_struct;
/* for sysctl */
extern int print_fatal_signals;
-/*
- * Real Time signals may be queued.
- */
-
-struct sigqueue {
- struct list_head list;
- int flags;
- siginfo_t info;
- struct user_struct *user;
-};
-
-/* flags values. */
-#define SIGQUEUE_PREALLOC 1
-
-struct sigpending {
- struct list_head list;
- sigset_t signal;
-};
#ifndef HAVE_ARCH_COPY_SIGINFO
@@ -272,42 +253,6 @@ extern void set_current_blocked(sigset_t *);
extern void __set_current_blocked(const sigset_t *);
extern int show_unhandled_signals;
-struct sigaction {
-#ifndef __ARCH_HAS_IRIX_SIGACTION
- __sighandler_t sa_handler;
- unsigned long sa_flags;
-#else
- unsigned int sa_flags;
- __sighandler_t sa_handler;
-#endif
-#ifdef __ARCH_HAS_SA_RESTORER
- __sigrestore_t sa_restorer;
-#endif
- sigset_t sa_mask; /* mask last for extensibility */
-};
-
-struct k_sigaction {
- struct sigaction sa;
-#ifdef __ARCH_HAS_KA_RESTORER
- __sigrestore_t ka_restorer;
-#endif
-};
-
-#ifdef CONFIG_OLD_SIGACTION
-struct old_sigaction {
- __sighandler_t sa_handler;
- old_sigset_t sa_mask;
- unsigned long sa_flags;
- __sigrestore_t sa_restorer;
-};
-#endif
-
-struct ksignal {
- struct k_sigaction ka;
- siginfo_t info;
- int sig;
-};
-
extern int get_signal(struct ksignal *ksig);
extern void signal_setup_done(int failed, struct ksignal *ksig, int stepping);
extern void exit_signals(struct task_struct *tsk);
diff --git a/include/linux/signal_types.h b/include/linux/signal_types.h
new file mode 100644
index 000000000000..16d862a3d8f3
--- /dev/null
+++ b/include/linux/signal_types.h
@@ -0,0 +1,66 @@
+#ifndef _LINUX_SIGNAL_TYPES_H
+#define _LINUX_SIGNAL_TYPES_H
+
+/*
+ * Basic signal handling related data type definitions:
+ */
+
+#include <linux/list.h>
+#include <uapi/linux/signal.h>
+
+/*
+ * Real Time signals may be queued.
+ */
+
+struct sigqueue {
+ struct list_head list;
+ int flags;
+ siginfo_t info;
+ struct user_struct *user;
+};
+
+/* flags values. */
+#define SIGQUEUE_PREALLOC 1
+
+struct sigpending {
+ struct list_head list;
+ sigset_t signal;
+};
+
+struct sigaction {
+#ifndef __ARCH_HAS_IRIX_SIGACTION
+ __sighandler_t sa_handler;
+ unsigned long sa_flags;
+#else
+ unsigned int sa_flags;
+ __sighandler_t sa_handler;
+#endif
+#ifdef __ARCH_HAS_SA_RESTORER
+ __sigrestore_t sa_restorer;
+#endif
+ sigset_t sa_mask; /* mask last for extensibility */
+};
+
+struct k_sigaction {
+ struct sigaction sa;
+#ifdef __ARCH_HAS_KA_RESTORER
+ __sigrestore_t ka_restorer;
+#endif
+};
+
+#ifdef CONFIG_OLD_SIGACTION
+struct old_sigaction {
+ __sighandler_t sa_handler;
+ old_sigset_t sa_mask;
+ unsigned long sa_flags;
+ __sigrestore_t sa_restorer;
+};
+#endif
+
+struct ksignal {
+ struct k_sigaction ka;
+ siginfo_t info;
+ int sig;
+};
+
+#endif /* _LINUX_SIGNAL_TYPES_H */
--
2.7.4
^ permalink raw reply related [flat|nested] 119+ messages in thread
* [PATCH 61/89] sched/headers: Reduce <linux/sched.h> signal API dependency
2017-02-06 13:28 [PATCH 00/89] Major reorganization of <linux/sched.h> Ingo Molnar
` (59 preceding siblings ...)
2017-02-06 13:29 ` [PATCH 60/89] signals: Split out <linux/signal_types.h> from <linux/signal.h> Ingo Molnar
@ 2017-02-06 13:29 ` Ingo Molnar
2017-02-06 13:29 ` [PATCH 62/89] mm/headers, sched/headers: Split <linux/mm_types_task.h> out of <linux/mm_types.h> Ingo Molnar
` (29 subsequent siblings)
90 siblings, 0 replies; 119+ messages in thread
From: Ingo Molnar @ 2017-02-06 13:29 UTC (permalink / raw)
To: linux-kernel
Cc: Andrew Morton, Linus Torvalds, Mike Galbraith, Oleg Nesterov,
Peter Zijlstra, Thomas Gleixner
Instead of including the full <linux/signal.h>, only include the types-only
<linux/signal_types.h> header in <linux/sched.h>, to further decouple the
scheduler header from the signal headers.
Also update <linux/sched/signal.h> which now needs the additional header.
Update the code that relied on sched.h's inclusion of the signal.h header.
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
arch/arm64/kernel/sys_compat.c | 1 +
drivers/gpu/drm/i915/i915_gem_request.c | 1 +
drivers/isdn/mISDN/stack.c | 2 ++
fs/btrfs/extent-tree.c | 1 +
fs/btrfs/free-space-cache.c | 1 +
fs/buffer.c | 1 +
fs/ceph/addr.c | 1 +
fs/dax.c | 1 +
fs/ioctl.c | 2 ++
fs/iomap.c | 2 ++
fs/ocfs2/super.c | 1 +
include/linux/sched.h | 2 +-
include/linux/sched/signal.h | 1 +
kernel/pid_namespace.c | 1 +
mm/page-writeback.c | 1 +
15 files changed, 18 insertions(+), 1 deletion(-)
diff --git a/arch/arm64/kernel/sys_compat.c b/arch/arm64/kernel/sys_compat.c
index abaf582fc7a8..8b8bbd3eaa52 100644
--- a/arch/arm64/kernel/sys_compat.c
+++ b/arch/arm64/kernel/sys_compat.c
@@ -21,6 +21,7 @@
#include <linux/compat.h>
#include <linux/personality.h>
#include <linux/sched.h>
+#include <linux/sched/signal.h>
#include <linux/slab.h>
#include <linux/syscalls.h>
#include <linux/uaccess.h>
diff --git a/drivers/gpu/drm/i915/i915_gem_request.c b/drivers/gpu/drm/i915/i915_gem_request.c
index ec024f6e66f9..ffd536917504 100644
--- a/drivers/gpu/drm/i915/i915_gem_request.c
+++ b/drivers/gpu/drm/i915/i915_gem_request.c
@@ -26,6 +26,7 @@
#include <linux/dma-fence-array.h>
#include <linux/sched.h>
#include <linux/sched/clock.h>
+#include <linux/sched/signal.h>
#include "i915_drv.h"
diff --git a/drivers/isdn/mISDN/stack.c b/drivers/isdn/mISDN/stack.c
index b324474c0c12..696f22fd5ab4 100644
--- a/drivers/isdn/mISDN/stack.c
+++ b/drivers/isdn/mISDN/stack.c
@@ -19,6 +19,8 @@
#include <linux/mISDNif.h>
#include <linux/kthread.h>
#include <linux/sched.h>
+#include <linux/signal.h>
+
#include "core.h"
static u_int *debug;
diff --git a/fs/btrfs/extent-tree.c b/fs/btrfs/extent-tree.c
index dcd2e798767e..d02a21745106 100644
--- a/fs/btrfs/extent-tree.c
+++ b/fs/btrfs/extent-tree.c
@@ -16,6 +16,7 @@
* Boston, MA 021110-1307, USA.
*/
#include <linux/sched.h>
+#include <linux/sched/signal.h>
#include <linux/pagemap.h>
#include <linux/writeback.h>
#include <linux/blkdev.h>
diff --git a/fs/btrfs/free-space-cache.c b/fs/btrfs/free-space-cache.c
index 7015892c9ee8..c653f0d431e7 100644
--- a/fs/btrfs/free-space-cache.c
+++ b/fs/btrfs/free-space-cache.c
@@ -18,6 +18,7 @@
#include <linux/pagemap.h>
#include <linux/sched.h>
+#include <linux/sched/signal.h>
#include <linux/slab.h>
#include <linux/math64.h>
#include <linux/ratelimit.h>
diff --git a/fs/buffer.c b/fs/buffer.c
index 0e87401cf335..92ab391dee55 100644
--- a/fs/buffer.c
+++ b/fs/buffer.c
@@ -19,6 +19,7 @@
*/
#include <linux/kernel.h>
+#include <linux/sched/signal.h>
#include <linux/syscalls.h>
#include <linux/fs.h>
#include <linux/iomap.h>
diff --git a/fs/ceph/addr.c b/fs/ceph/addr.c
index e4b066cd912a..cdc6a5f3df55 100644
--- a/fs/ceph/addr.c
+++ b/fs/ceph/addr.c
@@ -8,6 +8,7 @@
#include <linux/slab.h>
#include <linux/pagevec.h>
#include <linux/task_io_accounting_ops.h>
+#include <linux/signal.h>
#include "super.h"
#include "mds_client.h"
diff --git a/fs/dax.c b/fs/dax.c
index 3af2da5e64ce..f10a46d858c0 100644
--- a/fs/dax.c
+++ b/fs/dax.c
@@ -27,6 +27,7 @@
#include <linux/pagevec.h>
#include <linux/pmem.h>
#include <linux/sched.h>
+#include <linux/sched/signal.h>
#include <linux/uio.h>
#include <linux/vmstat.h>
#include <linux/pfn_t.h>
diff --git a/fs/ioctl.c b/fs/ioctl.c
index cb9b02940805..569db68d02b3 100644
--- a/fs/ioctl.c
+++ b/fs/ioctl.c
@@ -15,6 +15,8 @@
#include <linux/writeback.h>
#include <linux/buffer_head.h>
#include <linux/falloc.h>
+#include <linux/sched/signal.h>
+
#include "internal.h"
#include <asm/ioctls.h>
diff --git a/fs/iomap.c b/fs/iomap.c
index 354a123f170e..157f7ed024fd 100644
--- a/fs/iomap.c
+++ b/fs/iomap.c
@@ -26,6 +26,8 @@
#include <linux/buffer_head.h>
#include <linux/task_io_accounting_ops.h>
#include <linux/dax.h>
+#include <linux/sched/signal.h>
+
#include "internal.h"
/*
diff --git a/fs/ocfs2/super.c b/fs/ocfs2/super.c
index a24e42f95341..ca1646fbcaef 100644
--- a/fs/ocfs2/super.c
+++ b/fs/ocfs2/super.c
@@ -42,6 +42,7 @@
#include <linux/seq_file.h>
#include <linux/quotaops.h>
#include <linux/cleancache.h>
+#include <linux/signal.h>
#define CREATE_TRACE_POINTS
#include "ocfs2_trace.h"
diff --git a/include/linux/sched.h b/include/linux/sched.h
index c53bb89bfef7..bcfda8a42d88 100644
--- a/include/linux/sched.h
+++ b/include/linux/sched.h
@@ -10,7 +10,7 @@
#include <linux/sem.h>
#include <linux/shm.h>
-#include <linux/signal.h>
+#include <linux/signal_types.h>
#include <linux/pid.h>
#include <linux/seccomp.h>
#include <linux/rculist.h>
diff --git a/include/linux/sched/signal.h b/include/linux/sched/signal.h
index 3841cd2e794d..cad4d6eea663 100644
--- a/include/linux/sched/signal.h
+++ b/include/linux/sched/signal.h
@@ -1,6 +1,7 @@
#ifndef _LINUX_SCHED_SIGNAL_H
#define _LINUX_SCHED_SIGNAL_H
+#include <linux/signal.h>
#include <linux/sched.h>
#include <linux/sched/jobctl.h>
#include <linux/cred.h>
diff --git a/kernel/pid_namespace.c b/kernel/pid_namespace.c
index 7c8367854dc4..de461aa0bf9a 100644
--- a/kernel/pid_namespace.c
+++ b/kernel/pid_namespace.c
@@ -20,6 +20,7 @@
#include <linux/reboot.h>
#include <linux/export.h>
#include <linux/sched/task.h>
+#include <linux/sched/signal.h>
struct pid_cache {
int nr_ids;
diff --git a/mm/page-writeback.c b/mm/page-writeback.c
index 290e8b7d3181..cd99d3bc162a 100644
--- a/mm/page-writeback.c
+++ b/mm/page-writeback.c
@@ -36,6 +36,7 @@
#include <linux/pagevec.h>
#include <linux/timer.h>
#include <linux/sched/rt.h>
+#include <linux/sched/signal.h>
#include <linux/mm_inline.h>
#include <trace/events/writeback.h>
--
2.7.4
^ permalink raw reply related [flat|nested] 119+ messages in thread
* [PATCH 62/89] mm/headers, sched/headers: Split <linux/mm_types_task.h> out of <linux/mm_types.h>
2017-02-06 13:28 [PATCH 00/89] Major reorganization of <linux/sched.h> Ingo Molnar
` (60 preceding siblings ...)
2017-02-06 13:29 ` [PATCH 61/89] sched/headers: Reduce <linux/sched.h> signal API dependency Ingo Molnar
@ 2017-02-06 13:29 ` Ingo Molnar
2017-02-06 13:29 ` [PATCH 63/89] sched/headers: Remove the <linux/mm_types.h> dependency from <linux/sched.h> Ingo Molnar
` (28 subsequent siblings)
90 siblings, 0 replies; 119+ messages in thread
From: Ingo Molnar @ 2017-02-06 13:29 UTC (permalink / raw)
To: linux-kernel
Cc: Andrew Morton, Linus Torvalds, Mike Galbraith, Oleg Nesterov,
Peter Zijlstra, Thomas Gleixner
Separate all the MM types that are embedded directly in 'struct task_struct'
into the new <linux/mm_types_task.h> header.
The goal is to include this header in <linux/sched.h>, not the full <linux/mm_types.h>
header, to reduce the size, complexity and coupling of <linux/sched.h>.
(This patch does not change <linux/sched.h> yet.)
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
include/linux/mm_types.h | 55 +++--------------------------------------------------
include/linux/mm_types_task.h | 65 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
2 files changed, 68 insertions(+), 52 deletions(-)
diff --git a/include/linux/mm_types.h b/include/linux/mm_types.h
index a2696980a7bf..6083670bbbec 100644
--- a/include/linux/mm_types.h
+++ b/include/linux/mm_types.h
@@ -1,9 +1,9 @@
#ifndef _LINUX_MM_TYPES_H
#define _LINUX_MM_TYPES_H
+#include <linux/mm_types_task.h>
+
#include <linux/auxvec.h>
-#include <linux/types.h>
-#include <linux/threads.h>
#include <linux/list.h>
#include <linux/spinlock.h>
#include <linux/rbtree.h>
@@ -13,7 +13,7 @@
#include <linux/uprobes.h>
#include <linux/page-flags-layout.h>
#include <linux/workqueue.h>
-#include <asm/page.h>
+
#include <asm/mmu.h>
#ifndef AT_VECTOR_SIZE_ARCH
@@ -24,11 +24,6 @@
struct address_space;
struct mem_cgroup;
-#define USE_SPLIT_PTE_PTLOCKS (NR_CPUS >= CONFIG_SPLIT_PTLOCK_CPUS)
-#define USE_SPLIT_PMD_PTLOCKS (USE_SPLIT_PTE_PTLOCKS && \
- IS_ENABLED(CONFIG_ARCH_ENABLE_SPLIT_PMD_PTLOCK))
-#define ALLOC_SPLIT_PTLOCKS (SPINLOCK_SIZE > BITS_PER_LONG/8)
-
/*
* Each physical page in the system has a struct page associated with
* it to keep track of whatever it is we are using the page for at the
@@ -231,17 +226,6 @@ struct page {
#endif
;
-struct page_frag {
- struct page *page;
-#if (BITS_PER_LONG > 32) || (PAGE_SIZE >= 65536)
- __u32 offset;
- __u32 size;
-#else
- __u16 offset;
- __u16 size;
-#endif
-};
-
#define PAGE_FRAG_CACHE_MAX_SIZE __ALIGN_MASK(32768, ~PAGE_MASK)
#define PAGE_FRAG_CACHE_MAX_ORDER get_order(PAGE_FRAG_CACHE_MAX_SIZE)
@@ -360,18 +344,6 @@ struct vm_area_struct {
struct vm_userfaultfd_ctx vm_userfaultfd_ctx;
};
-/*
- * The per task VMA cache array:
- */
-#define VMACACHE_BITS 2
-#define VMACACHE_SIZE (1U << VMACACHE_BITS)
-#define VMACACHE_MASK (VMACACHE_SIZE - 1)
-
-struct vmacache {
- u32 seqnum;
- struct vm_area_struct *vmas[VMACACHE_SIZE];
-};
-
struct core_thread {
struct task_struct *task;
struct core_thread *next;
@@ -383,27 +355,6 @@ struct core_state {
struct completion startup;
};
-enum {
- MM_FILEPAGES, /* Resident file mapping pages */
- MM_ANONPAGES, /* Resident anonymous pages */
- MM_SWAPENTS, /* Anonymous swap entries */
- MM_SHMEMPAGES, /* Resident shared memory pages */
- NR_MM_COUNTERS
-};
-
-#if USE_SPLIT_PTE_PTLOCKS && defined(CONFIG_MMU)
-#define SPLIT_RSS_COUNTING
-/* per-thread cached information, */
-struct task_rss_stat {
- int events; /* for synchronization threshold */
- int count[NR_MM_COUNTERS];
-};
-#endif /* USE_SPLIT_PTE_PTLOCKS */
-
-struct mm_rss_stat {
- atomic_long_t count[NR_MM_COUNTERS];
-};
-
struct kioctx_table;
struct mm_struct {
struct vm_area_struct *mmap; /* list of VMAs */
diff --git a/include/linux/mm_types_task.h b/include/linux/mm_types_task.h
new file mode 100644
index 000000000000..9526d8b9fe0e
--- /dev/null
+++ b/include/linux/mm_types_task.h
@@ -0,0 +1,65 @@
+#ifndef _LINUX_MM_TYPES_TASK_H
+#define _LINUX_MM_TYPES_TASK_H
+
+/*
+ * Here are the definitions of the MM data types that are embedded in 'struct task_struct'.
+ *
+ * (These are defined separately to decouple sched.h from mm_types.h as much as possible.)
+ */
+
+#include <linux/types.h>
+#include <linux/threads.h>
+#include <linux/atomic.h>
+
+#include <asm/page.h>
+
+#define USE_SPLIT_PTE_PTLOCKS (NR_CPUS >= CONFIG_SPLIT_PTLOCK_CPUS)
+#define USE_SPLIT_PMD_PTLOCKS (USE_SPLIT_PTE_PTLOCKS && \
+ IS_ENABLED(CONFIG_ARCH_ENABLE_SPLIT_PMD_PTLOCK))
+#define ALLOC_SPLIT_PTLOCKS (SPINLOCK_SIZE > BITS_PER_LONG/8)
+
+/*
+ * The per task VMA cache array:
+ */
+#define VMACACHE_BITS 2
+#define VMACACHE_SIZE (1U << VMACACHE_BITS)
+#define VMACACHE_MASK (VMACACHE_SIZE - 1)
+
+struct vmacache {
+ u32 seqnum;
+ struct vm_area_struct *vmas[VMACACHE_SIZE];
+};
+
+enum {
+ MM_FILEPAGES, /* Resident file mapping pages */
+ MM_ANONPAGES, /* Resident anonymous pages */
+ MM_SWAPENTS, /* Anonymous swap entries */
+ MM_SHMEMPAGES, /* Resident shared memory pages */
+ NR_MM_COUNTERS
+};
+
+#if USE_SPLIT_PTE_PTLOCKS && defined(CONFIG_MMU)
+#define SPLIT_RSS_COUNTING
+/* per-thread cached information, */
+struct task_rss_stat {
+ int events; /* for synchronization threshold */
+ int count[NR_MM_COUNTERS];
+};
+#endif /* USE_SPLIT_PTE_PTLOCKS */
+
+struct mm_rss_stat {
+ atomic_long_t count[NR_MM_COUNTERS];
+};
+
+struct page_frag {
+ struct page *page;
+#if (BITS_PER_LONG > 32) || (PAGE_SIZE >= 65536)
+ __u32 offset;
+ __u32 size;
+#else
+ __u16 offset;
+ __u16 size;
+#endif
+};
+
+#endif /* _LINUX_MM_TYPES_TASK_H */
--
2.7.4
^ permalink raw reply related [flat|nested] 119+ messages in thread
* [PATCH 63/89] sched/headers: Remove the <linux/mm_types.h> dependency from <linux/sched.h>
2017-02-06 13:28 [PATCH 00/89] Major reorganization of <linux/sched.h> Ingo Molnar
` (61 preceding siblings ...)
2017-02-06 13:29 ` [PATCH 62/89] mm/headers, sched/headers: Split <linux/mm_types_task.h> out of <linux/mm_types.h> Ingo Molnar
@ 2017-02-06 13:29 ` Ingo Molnar
2017-02-06 13:29 ` [PATCH 64/89] sched/headers: Remove 'init_pid_ns' prototype " Ingo Molnar
` (27 subsequent siblings)
90 siblings, 0 replies; 119+ messages in thread
From: Ingo Molnar @ 2017-02-06 13:29 UTC (permalink / raw)
To: linux-kernel
Cc: Andrew Morton, Linus Torvalds, Mike Galbraith, Oleg Nesterov,
Peter Zijlstra, Thomas Gleixner
Use the freshly introduced, reduced size <linux/mm_types_task.h> header instead.
Update the code that relied on sched.h including the MM types for them.
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
arch/alpha/include/asm/a.out-core.h | 1 +
arch/alpha/include/asm/mmu_context.h | 2 ++
arch/arc/mm/tlb.c | 2 ++
arch/arm/include/asm/mmu_context.h | 2 ++
arch/arm/include/asm/tlbflush.h | 7 ++++---
arch/arm/kernel/suspend.c | 1 +
arch/arm/kernel/swp_emulate.c | 1 +
arch/arm/mm/idmap.c | 1 +
arch/arm64/include/asm/mmu_context.h | 1 +
arch/arm64/kernel/traps.c | 1 +
arch/avr32/include/asm/mmu_context.h | 2 ++
arch/blackfin/include/asm/mmu_context.h | 2 ++
arch/blackfin/kernel/flat.c | 1 +
arch/blackfin/kernel/process.c | 1 +
arch/blackfin/mm/sram-alloc.c | 2 ++
arch/cris/arch-v10/mm/tlb.c | 2 ++
arch/cris/arch-v32/mm/tlb.c | 1 +
arch/cris/include/asm/pgtable.h | 2 +-
arch/cris/mm/tlb.c | 2 ++
arch/h8300/kernel/traps.c | 1 +
arch/hexagon/include/asm/mmu_context.h | 2 ++
arch/hexagon/kernel/smp.c | 1 +
arch/ia64/include/asm/mmu_context.h | 1 +
arch/ia64/include/asm/pgtable.h | 2 +-
arch/ia64/sn/kernel/sn2/sn2_smp.c | 1 +
arch/m32r/include/asm/mmu_context.h | 2 ++
arch/m68k/include/asm/a.out-core.h | 1 +
arch/m68k/include/asm/mmu_context.h | 1 +
arch/metag/include/asm/mmu_context.h | 1 +
arch/microblaze/include/asm/mmu_context_mm.h | 2 ++
arch/microblaze/mm/pgtable.c | 1 +
arch/mips/include/asm/elf.h | 2 ++
arch/mips/include/asm/mmu_context.h | 2 ++
arch/mips/kernel/smp.c | 2 +-
arch/mips/math-emu/dsemul.c | 1 +
arch/mips/mm/ioremap.c | 1 +
arch/mn10300/include/asm/mmu_context.h | 2 ++
arch/mn10300/kernel/smp.c | 2 +-
arch/mn10300/mm/tlb-smp.c | 2 +-
arch/nios2/include/asm/mmu_context.h | 2 ++
arch/nios2/kernel/process.c | 1 +
arch/powerpc/kernel/io-workarounds.c | 2 +-
arch/powerpc/kvm/e500_mmu_host.c | 2 +-
arch/powerpc/lib/feature-fixups.c | 1 +
arch/powerpc/mm/hash_utils_64.c | 2 +-
arch/powerpc/mm/pgtable-book3s64.c | 2 ++
arch/powerpc/mm/pgtable-hash64.c | 2 ++
arch/powerpc/mm/pgtable-radix.c | 2 +-
arch/powerpc/mm/slb.c | 2 ++
arch/s390/include/asm/elf.h | 2 +-
arch/s390/include/asm/mmu_context.h | 1 +
arch/s390/kernel/processor.c | 1 +
arch/s390/kvm/gaccess.c | 2 ++
arch/s390/kvm/priv.c | 2 ++
arch/score/include/asm/mmu_context.h | 2 ++
arch/score/kernel/traps.c | 1 +
arch/sh/include/asm/mmu_context.h | 2 ++
arch/sparc/include/asm/mmu_context_64.h | 2 ++
arch/sparc/include/asm/pgtable_64.h | 3 +++
arch/sparc/kernel/asm-offsets.c | 1 +
arch/sparc/kernel/traps_32.c | 1 +
arch/sparc/mm/tsb.c | 2 ++
arch/tile/include/asm/mmu_context.h | 2 ++
arch/um/include/asm/mmu_context.h | 2 ++
arch/um/kernel/exec.c | 2 +-
arch/um/kernel/reboot.c | 1 +
arch/um/kernel/skas/process.c | 3 ++-
arch/x86/entry/vsyscall/vsyscall_64.c | 1 +
arch/x86/events/core.c | 2 +-
arch/x86/include/asm/a.out-core.h | 2 ++
arch/x86/include/asm/mpx.h | 2 ++
arch/x86/mm/mpx.c | 1 +
arch/x86/um/syscalls_64.c | 1 +
arch/x86/xen/mmu.c | 2 +-
arch/xtensa/include/asm/mmu_context.h | 1 +
drivers/gpu/drm/amd/amdkfd/kfd_mqd_manager_cik.c | 2 ++
drivers/gpu/drm/amd/amdkfd/kfd_mqd_manager_vi.c | 2 ++
drivers/infiniband/hw/cxgb3/iwch_provider.c | 2 +-
drivers/infiniband/hw/cxgb4/iw_cxgb4.h | 2 +-
drivers/media/v4l2-core/videobuf-dma-sg.c | 2 +-
fs/binfmt_misc.c | 2 +-
fs/kernfs/file.c | 2 +-
include/drm/drm_mm.h | 1 +
include/linux/init_task.h | 1 +
include/linux/sched.h | 2 +-
include/linux/sched/mm.h | 1 +
kernel/sched/debug.c | 2 +-
kernel/sched/fair.c | 2 +-
kernel/signal.c | 2 +-
lib/is_single_threaded.c | 1 +
90 files changed, 126 insertions(+), 26 deletions(-)
diff --git a/arch/alpha/include/asm/a.out-core.h b/arch/alpha/include/asm/a.out-core.h
index 9e33e92e524c..1610d078b064 100644
--- a/arch/alpha/include/asm/a.out-core.h
+++ b/arch/alpha/include/asm/a.out-core.h
@@ -15,6 +15,7 @@
#ifdef __KERNEL__
#include <linux/user.h>
+#include <linux/mm_types.h>
/*
* Fill in the user structure for an ECOFF core dump.
diff --git a/arch/alpha/include/asm/mmu_context.h b/arch/alpha/include/asm/mmu_context.h
index 4c51c05333c6..384bd47b5187 100644
--- a/arch/alpha/include/asm/mmu_context.h
+++ b/arch/alpha/include/asm/mmu_context.h
@@ -7,6 +7,8 @@
* Copyright (C) 1996, Linus Torvalds
*/
+#include <linux/mm_types.h>
+
#include <asm/machvec.h>
#include <asm/compiler.h>
#include <asm-generic/mm_hooks.h>
diff --git a/arch/arc/mm/tlb.c b/arch/arc/mm/tlb.c
index bdb295e09160..d0126fdfe2d8 100644
--- a/arch/arc/mm/tlb.c
+++ b/arch/arc/mm/tlb.c
@@ -53,6 +53,8 @@
#include <linux/module.h>
#include <linux/bug.h>
+#include <linux/mm_types.h>
+
#include <asm/arcregs.h>
#include <asm/setup.h>
#include <asm/mmu_context.h>
diff --git a/arch/arm/include/asm/mmu_context.h b/arch/arm/include/asm/mmu_context.h
index 3cc14dd8587c..7f303295ef19 100644
--- a/arch/arm/include/asm/mmu_context.h
+++ b/arch/arm/include/asm/mmu_context.h
@@ -15,7 +15,9 @@
#include <linux/compiler.h>
#include <linux/sched.h>
+#include <linux/mm_types.h>
#include <linux/preempt.h>
+
#include <asm/cacheflush.h>
#include <asm/cachetype.h>
#include <asm/proc-fns.h>
diff --git a/arch/arm/include/asm/tlbflush.h b/arch/arm/include/asm/tlbflush.h
index def9e570199f..1897b5196fb5 100644
--- a/arch/arm/include/asm/tlbflush.h
+++ b/arch/arm/include/asm/tlbflush.h
@@ -10,6 +10,10 @@
#ifndef _ASMARM_TLBFLUSH_H
#define _ASMARM_TLBFLUSH_H
+#ifndef __ASSEMBLY__
+# include <linux/mm_types.h>
+#endif
+
#ifdef CONFIG_MMU
#include <asm/glue.h>
@@ -644,9 +648,6 @@ static inline void update_mmu_cache(struct vm_area_struct *vma,
#elif defined(CONFIG_SMP) /* !CONFIG_MMU */
#ifndef __ASSEMBLY__
-
-#include <linux/mm_types.h>
-
static inline void local_flush_tlb_all(void) { }
static inline void local_flush_tlb_mm(struct mm_struct *mm) { }
static inline void local_flush_tlb_page(struct vm_area_struct *vma, unsigned long uaddr) { }
diff --git a/arch/arm/kernel/suspend.c b/arch/arm/kernel/suspend.c
index 9a2f882a0a2d..ef794c799cb6 100644
--- a/arch/arm/kernel/suspend.c
+++ b/arch/arm/kernel/suspend.c
@@ -1,5 +1,6 @@
#include <linux/init.h>
#include <linux/slab.h>
+#include <linux/mm_types.h>
#include <asm/cacheflush.h>
#include <asm/idmap.h>
diff --git a/arch/arm/kernel/swp_emulate.c b/arch/arm/kernel/swp_emulate.c
index 853221f81104..3bda08bee674 100644
--- a/arch/arm/kernel/swp_emulate.c
+++ b/arch/arm/kernel/swp_emulate.c
@@ -23,6 +23,7 @@
#include <linux/proc_fs.h>
#include <linux/seq_file.h>
#include <linux/sched.h>
+#include <linux/sched/mm.h>
#include <linux/syscalls.h>
#include <linux/perf_event.h>
diff --git a/arch/arm/mm/idmap.c b/arch/arm/mm/idmap.c
index c1a48f88764e..3e511bec69b8 100644
--- a/arch/arm/mm/idmap.c
+++ b/arch/arm/mm/idmap.c
@@ -1,6 +1,7 @@
#include <linux/module.h>
#include <linux/kernel.h>
#include <linux/slab.h>
+#include <linux/mm_types.h>
#include <asm/cputype.h>
#include <asm/idmap.h>
diff --git a/arch/arm64/include/asm/mmu_context.h b/arch/arm64/include/asm/mmu_context.h
index c517c3c2f194..e63d1b6232c0 100644
--- a/arch/arm64/include/asm/mmu_context.h
+++ b/arch/arm64/include/asm/mmu_context.h
@@ -22,6 +22,7 @@
#include <linux/compiler.h>
#include <linux/sched.h>
#include <linux/sched/hotplug.h>
+#include <linux/mm_types.h>
#include <asm/cacheflush.h>
#include <asm/cpufeature.h>
diff --git a/arch/arm64/kernel/traps.c b/arch/arm64/kernel/traps.c
index 2a256e5ae57f..698174ddaf09 100644
--- a/arch/arm64/kernel/traps.c
+++ b/arch/arm64/kernel/traps.c
@@ -33,6 +33,7 @@
#include <linux/sched/debug.h>
#include <linux/sched/task_stack.h>
#include <linux/syscalls.h>
+#include <linux/mm_types.h>
#include <asm/atomic.h>
#include <asm/bug.h>
diff --git a/arch/avr32/include/asm/mmu_context.h b/arch/avr32/include/asm/mmu_context.h
index 27ff23407100..cd87abba8db7 100644
--- a/arch/avr32/include/asm/mmu_context.h
+++ b/arch/avr32/include/asm/mmu_context.h
@@ -12,6 +12,8 @@
#ifndef __ASM_AVR32_MMU_CONTEXT_H
#define __ASM_AVR32_MMU_CONTEXT_H
+#include <linux/mm_types.h>
+
#include <asm/tlbflush.h>
#include <asm/sysreg.h>
#include <asm-generic/mm_hooks.h>
diff --git a/arch/blackfin/include/asm/mmu_context.h b/arch/blackfin/include/asm/mmu_context.h
index 15b16d3e8de8..0ce6de873b27 100644
--- a/arch/blackfin/include/asm/mmu_context.h
+++ b/arch/blackfin/include/asm/mmu_context.h
@@ -9,6 +9,8 @@
#include <linux/slab.h>
#include <linux/sched.h>
+#include <linux/mm_types.h>
+
#include <asm/setup.h>
#include <asm/page.h>
#include <asm/pgalloc.h>
diff --git a/arch/blackfin/kernel/flat.c b/arch/blackfin/kernel/flat.c
index a88daddbf074..b5b658449616 100644
--- a/arch/blackfin/kernel/flat.c
+++ b/arch/blackfin/kernel/flat.c
@@ -6,6 +6,7 @@
#include <linux/module.h>
#include <linux/sched.h>
+#include <linux/mm_types.h>
#include <linux/flat.h>
#define FLAT_BFIN_RELOC_TYPE_16_BIT 0
diff --git a/arch/blackfin/kernel/process.c b/arch/blackfin/kernel/process.c
index b691ef875a40..89d5162d4ca6 100644
--- a/arch/blackfin/kernel/process.c
+++ b/arch/blackfin/kernel/process.c
@@ -15,6 +15,7 @@
#include <linux/sched/debug.h>
#include <linux/sched/task.h>
#include <linux/sched/task_stack.h>
+#include <linux/mm_types.h>
#include <linux/tick.h>
#include <linux/fs.h>
#include <linux/err.h>
diff --git a/arch/blackfin/mm/sram-alloc.c b/arch/blackfin/mm/sram-alloc.c
index 1f3b3ef3e103..d2a96c2c02a3 100644
--- a/arch/blackfin/mm/sram-alloc.c
+++ b/arch/blackfin/mm/sram-alloc.c
@@ -19,6 +19,8 @@
#include <linux/spinlock.h>
#include <linux/rtc.h>
#include <linux/slab.h>
+#include <linux/mm_types.h>
+
#include <asm/blackfin.h>
#include <asm/mem_map.h>
#include "blackfin_sram.h"
diff --git a/arch/cris/arch-v10/mm/tlb.c b/arch/cris/arch-v10/mm/tlb.c
index 21d78c599bab..3225d38bdaea 100644
--- a/arch/cris/arch-v10/mm/tlb.c
+++ b/arch/cris/arch-v10/mm/tlb.c
@@ -10,6 +10,8 @@
*
*/
+#include <linux/mm_types.h>
+
#include <asm/tlb.h>
#include <asm/mmu_context.h>
#include <arch/svinto.h>
diff --git a/arch/cris/arch-v32/mm/tlb.c b/arch/cris/arch-v32/mm/tlb.c
index c030d020660a..bc3de5b5e27c 100644
--- a/arch/cris/arch-v32/mm/tlb.c
+++ b/arch/cris/arch-v32/mm/tlb.c
@@ -6,6 +6,7 @@
* Authors: Bjorn Wesen <bjornw@axis.com>
* Tobias Anderberg <tobiasa@axis.com>, CRISv32 port.
*/
+#include <linux/mm_types.h>
#include <asm/tlb.h>
#include <asm/mmu_context.h>
diff --git a/arch/cris/include/asm/pgtable.h b/arch/cris/include/asm/pgtable.h
index ceefc314d64d..2a3210ba4c72 100644
--- a/arch/cris/include/asm/pgtable.h
+++ b/arch/cris/include/asm/pgtable.h
@@ -9,7 +9,7 @@
#include <asm-generic/pgtable-nopmd.h>
#ifndef __ASSEMBLY__
-#include <linux/sched.h>
+#include <linux/sched/mm.h>
#include <asm/mmu.h>
#endif
#include <arch/pgtable.h>
diff --git a/arch/cris/mm/tlb.c b/arch/cris/mm/tlb.c
index b7f8de576777..8413741cfa0f 100644
--- a/arch/cris/mm/tlb.c
+++ b/arch/cris/mm/tlb.c
@@ -9,6 +9,8 @@
#include <linux/init.h>
#include <linux/kernel.h>
+#include <linux/mm_types.h>
+
#include <asm/tlb.h>
#define D(x)
diff --git a/arch/h8300/kernel/traps.c b/arch/h8300/kernel/traps.c
index ee7e3ce40d78..e47a9e0dc278 100644
--- a/arch/h8300/kernel/traps.c
+++ b/arch/h8300/kernel/traps.c
@@ -17,6 +17,7 @@
#include <linux/types.h>
#include <linux/sched.h>
#include <linux/sched/debug.h>
+#include <linux/mm_types.h>
#include <linux/kernel.h>
#include <linux/errno.h>
#include <linux/init.h>
diff --git a/arch/hexagon/include/asm/mmu_context.h b/arch/hexagon/include/asm/mmu_context.h
index d423d2e73c30..d8a071afdd1d 100644
--- a/arch/hexagon/include/asm/mmu_context.h
+++ b/arch/hexagon/include/asm/mmu_context.h
@@ -21,6 +21,8 @@
#ifndef _ASM_MMU_CONTEXT_H
#define _ASM_MMU_CONTEXT_H
+#include <linux/mm_types.h>
+
#include <asm/setup.h>
#include <asm/page.h>
#include <asm/pgalloc.h>
diff --git a/arch/hexagon/kernel/smp.c b/arch/hexagon/kernel/smp.c
index 983bae7d2665..3c7f4b1a6372 100644
--- a/arch/hexagon/kernel/smp.c
+++ b/arch/hexagon/kernel/smp.c
@@ -29,6 +29,7 @@
#include <linux/smp.h>
#include <linux/spinlock.h>
#include <linux/cpu.h>
+#include <linux/mm_types.h>
#include <asm/time.h> /* timer_interrupt */
#include <asm/hexagon_vm.h>
diff --git a/arch/ia64/include/asm/mmu_context.h b/arch/ia64/include/asm/mmu_context.h
index 7f2a456603cb..9b99368633b5 100644
--- a/arch/ia64/include/asm/mmu_context.h
+++ b/arch/ia64/include/asm/mmu_context.h
@@ -26,6 +26,7 @@
#include <linux/compiler.h>
#include <linux/percpu.h>
#include <linux/sched.h>
+#include <linux/mm_types.h>
#include <linux/spinlock.h>
#include <asm/processor.h>
diff --git a/arch/ia64/include/asm/pgtable.h b/arch/ia64/include/asm/pgtable.h
index 9f3ed9ee8f13..384794e665fc 100644
--- a/arch/ia64/include/asm/pgtable.h
+++ b/arch/ia64/include/asm/pgtable.h
@@ -147,7 +147,7 @@
# ifndef __ASSEMBLY__
-#include <linux/sched.h> /* for mm_struct */
+#include <linux/sched/mm.h> /* for mm_struct */
#include <linux/bitops.h>
#include <asm/cacheflush.h>
#include <asm/mmu_context.h>
diff --git a/arch/ia64/sn/kernel/sn2/sn2_smp.c b/arch/ia64/sn/kernel/sn2/sn2_smp.c
index c98dc965fe82..b73b0ebf8214 100644
--- a/arch/ia64/sn/kernel/sn2/sn2_smp.c
+++ b/arch/ia64/sn/kernel/sn2/sn2_smp.c
@@ -13,6 +13,7 @@
#include <linux/spinlock.h>
#include <linux/threads.h>
#include <linux/sched.h>
+#include <linux/mm_types.h>
#include <linux/smp.h>
#include <linux/interrupt.h>
#include <linux/irq.h>
diff --git a/arch/m32r/include/asm/mmu_context.h b/arch/m32r/include/asm/mmu_context.h
index 9fc78fc44445..1230b7050d8e 100644
--- a/arch/m32r/include/asm/mmu_context.h
+++ b/arch/m32r/include/asm/mmu_context.h
@@ -12,6 +12,8 @@
#ifndef __ASSEMBLY__
#include <linux/atomic.h>
+#include <linux/mm_types.h>
+
#include <asm/pgalloc.h>
#include <asm/mmu.h>
#include <asm/tlbflush.h>
diff --git a/arch/m68k/include/asm/a.out-core.h b/arch/m68k/include/asm/a.out-core.h
index f6bfc1d63ff6..ae91ea6bb303 100644
--- a/arch/m68k/include/asm/a.out-core.h
+++ b/arch/m68k/include/asm/a.out-core.h
@@ -16,6 +16,7 @@
#include <linux/user.h>
#include <linux/elfcore.h>
+#include <linux/mm_types.h>
/*
* fill in the user structure for an a.out core dump
diff --git a/arch/m68k/include/asm/mmu_context.h b/arch/m68k/include/asm/mmu_context.h
index dc3be991d634..4a6ae6dffa34 100644
--- a/arch/m68k/include/asm/mmu_context.h
+++ b/arch/m68k/include/asm/mmu_context.h
@@ -2,6 +2,7 @@
#define __M68K_MMU_CONTEXT_H
#include <asm-generic/mm_hooks.h>
+#include <linux/mm_types.h>
static inline void enter_lazy_tlb(struct mm_struct *mm, struct task_struct *tsk)
{
diff --git a/arch/metag/include/asm/mmu_context.h b/arch/metag/include/asm/mmu_context.h
index ae2a71b5e0be..2e0312748197 100644
--- a/arch/metag/include/asm/mmu_context.h
+++ b/arch/metag/include/asm/mmu_context.h
@@ -9,6 +9,7 @@
#include <asm/cacheflush.h>
#include <linux/io.h>
+#include <linux/mm_types.h>
static inline void enter_lazy_tlb(struct mm_struct *mm,
struct task_struct *tsk)
diff --git a/arch/microblaze/include/asm/mmu_context_mm.h b/arch/microblaze/include/asm/mmu_context_mm.h
index d68647746448..99472d2ca340 100644
--- a/arch/microblaze/include/asm/mmu_context_mm.h
+++ b/arch/microblaze/include/asm/mmu_context_mm.h
@@ -12,6 +12,8 @@
#define _ASM_MICROBLAZE_MMU_CONTEXT_H
#include <linux/atomic.h>
+#include <linux/mm_types.h>
+
#include <asm/bitops.h>
#include <asm/mmu.h>
#include <asm-generic/mm_hooks.h>
diff --git a/arch/microblaze/mm/pgtable.c b/arch/microblaze/mm/pgtable.c
index cc732fe357ad..4c0599239915 100644
--- a/arch/microblaze/mm/pgtable.c
+++ b/arch/microblaze/mm/pgtable.c
@@ -31,6 +31,7 @@
#include <linux/types.h>
#include <linux/vmalloc.h>
#include <linux/init.h>
+#include <linux/mm_types.h>
#include <asm/pgtable.h>
#include <asm/pgalloc.h>
diff --git a/arch/mips/include/asm/elf.h b/arch/mips/include/asm/elf.h
index 2b3dc2973670..0e192bd9d52b 100644
--- a/arch/mips/include/asm/elf.h
+++ b/arch/mips/include/asm/elf.h
@@ -10,6 +10,8 @@
#include <linux/auxvec.h>
#include <linux/fs.h>
+#include <linux/mm_types.h>
+
#include <uapi/linux/elf.h>
#include <asm/current.h>
diff --git a/arch/mips/include/asm/mmu_context.h b/arch/mips/include/asm/mmu_context.h
index ddd57ade1aa8..946407246bfc 100644
--- a/arch/mips/include/asm/mmu_context.h
+++ b/arch/mips/include/asm/mmu_context.h
@@ -13,8 +13,10 @@
#include <linux/errno.h>
#include <linux/sched.h>
+#include <linux/mm_types.h>
#include <linux/smp.h>
#include <linux/slab.h>
+
#include <asm/cacheflush.h>
#include <asm/dsemul.h>
#include <asm/hazards.h>
diff --git a/arch/mips/kernel/smp.c b/arch/mips/kernel/smp.c
index 7ebb1918e2ac..ab3079b83e16 100644
--- a/arch/mips/kernel/smp.c
+++ b/arch/mips/kernel/smp.c
@@ -28,7 +28,7 @@
#include <linux/export.h>
#include <linux/time.h>
#include <linux/timex.h>
-#include <linux/sched.h>
+#include <linux/sched/mm.h>
#include <linux/cpumask.h>
#include <linux/cpu.h>
#include <linux/err.h>
diff --git a/arch/mips/math-emu/dsemul.c b/arch/mips/math-emu/dsemul.c
index c4469ff4a996..6664908514b3 100644
--- a/arch/mips/math-emu/dsemul.c
+++ b/arch/mips/math-emu/dsemul.c
@@ -1,5 +1,6 @@
#include <linux/err.h>
#include <linux/slab.h>
+#include <linux/mm_types.h>
#include <asm/branch.h>
#include <asm/cacheflush.h>
diff --git a/arch/mips/mm/ioremap.c b/arch/mips/mm/ioremap.c
index 1f189627440f..1986e09fb457 100644
--- a/arch/mips/mm/ioremap.c
+++ b/arch/mips/mm/ioremap.c
@@ -12,6 +12,7 @@
#include <linux/sched.h>
#include <linux/slab.h>
#include <linux/vmalloc.h>
+#include <linux/mm_types.h>
#include <asm/cacheflush.h>
#include <asm/io.h>
#include <asm/tlbflush.h>
diff --git a/arch/mn10300/include/asm/mmu_context.h b/arch/mn10300/include/asm/mmu_context.h
index 75dbe696f830..d2034f5e6eda 100644
--- a/arch/mn10300/include/asm/mmu_context.h
+++ b/arch/mn10300/include/asm/mmu_context.h
@@ -23,6 +23,8 @@
#define _ASM_MMU_CONTEXT_H
#include <linux/atomic.h>
+#include <linux/mm_types.h>
+
#include <asm/pgalloc.h>
#include <asm/tlbflush.h>
#include <asm-generic/mm_hooks.h>
diff --git a/arch/mn10300/kernel/smp.c b/arch/mn10300/kernel/smp.c
index d3559925e6a0..bdc1fea0a017 100644
--- a/arch/mn10300/kernel/smp.c
+++ b/arch/mn10300/kernel/smp.c
@@ -21,7 +21,7 @@
#include <linux/err.h>
#include <linux/kernel.h>
#include <linux/delay.h>
-#include <linux/sched.h>
+#include <linux/sched/mm.h>
#include <linux/sched/task.h>
#include <linux/profile.h>
#include <linux/smp.h>
diff --git a/arch/mn10300/mm/tlb-smp.c b/arch/mn10300/mm/tlb-smp.c
index 9a39ea9031d4..085f2bb691ac 100644
--- a/arch/mn10300/mm/tlb-smp.c
+++ b/arch/mn10300/mm/tlb-smp.c
@@ -20,7 +20,7 @@
#include <linux/err.h>
#include <linux/kernel.h>
#include <linux/delay.h>
-#include <linux/sched.h>
+#include <linux/sched/mm.h>
#include <linux/profile.h>
#include <linux/smp.h>
#include <asm/tlbflush.h>
diff --git a/arch/nios2/include/asm/mmu_context.h b/arch/nios2/include/asm/mmu_context.h
index 294b4b1f81d4..78ab3dacf579 100644
--- a/arch/nios2/include/asm/mmu_context.h
+++ b/arch/nios2/include/asm/mmu_context.h
@@ -13,6 +13,8 @@
#ifndef _ASM_NIOS2_MMU_CONTEXT_H
#define _ASM_NIOS2_MMU_CONTEXT_H
+#include <linux/mm_types.h>
+
#include <asm-generic/mm_hooks.h>
extern void mmu_context_init(void);
diff --git a/arch/nios2/kernel/process.c b/arch/nios2/kernel/process.c
index 869a4d59de32..509e7855e8dc 100644
--- a/arch/nios2/kernel/process.c
+++ b/arch/nios2/kernel/process.c
@@ -17,6 +17,7 @@
#include <linux/sched/debug.h>
#include <linux/sched/task.h>
#include <linux/sched/task_stack.h>
+#include <linux/mm_types.h>
#include <linux/tick.h>
#include <linux/uaccess.h>
diff --git a/arch/powerpc/kernel/io-workarounds.c b/arch/powerpc/kernel/io-workarounds.c
index 5f8613ceb97f..a582e0d42525 100644
--- a/arch/powerpc/kernel/io-workarounds.c
+++ b/arch/powerpc/kernel/io-workarounds.c
@@ -12,7 +12,7 @@
#undef DEBUG
#include <linux/kernel.h>
-#include <linux/sched.h> /* for init_mm */
+#include <linux/sched/mm.h> /* for init_mm */
#include <asm/io.h>
#include <asm/machdep.h>
diff --git a/arch/powerpc/kvm/e500_mmu_host.c b/arch/powerpc/kvm/e500_mmu_host.c
index b0333cc737dd..0fda4230f6c0 100644
--- a/arch/powerpc/kvm/e500_mmu_host.c
+++ b/arch/powerpc/kvm/e500_mmu_host.c
@@ -25,7 +25,7 @@
#include <linux/highmem.h>
#include <linux/log2.h>
#include <linux/uaccess.h>
-#include <linux/sched.h>
+#include <linux/sched/mm.h>
#include <linux/rwsem.h>
#include <linux/vmalloc.h>
#include <linux/hugetlb.h>
diff --git a/arch/powerpc/lib/feature-fixups.c b/arch/powerpc/lib/feature-fixups.c
index 043415f0bdb1..f3917705c686 100644
--- a/arch/powerpc/lib/feature-fixups.c
+++ b/arch/powerpc/lib/feature-fixups.c
@@ -17,6 +17,7 @@
#include <linux/kernel.h>
#include <linux/string.h>
#include <linux/init.h>
+#include <linux/sched/mm.h>
#include <asm/cputable.h>
#include <asm/code-patching.h>
#include <asm/page.h>
diff --git a/arch/powerpc/mm/hash_utils_64.c b/arch/powerpc/mm/hash_utils_64.c
index 67e19a0821be..c38c9244ee04 100644
--- a/arch/powerpc/mm/hash_utils_64.c
+++ b/arch/powerpc/mm/hash_utils_64.c
@@ -23,7 +23,7 @@
#include <linux/spinlock.h>
#include <linux/errno.h>
-#include <linux/sched.h>
+#include <linux/sched/mm.h>
#include <linux/proc_fs.h>
#include <linux/stat.h>
#include <linux/sysctl.h>
diff --git a/arch/powerpc/mm/pgtable-book3s64.c b/arch/powerpc/mm/pgtable-book3s64.c
index 653ff6c74ebe..7f5be97b33fb 100644
--- a/arch/powerpc/mm/pgtable-book3s64.c
+++ b/arch/powerpc/mm/pgtable-book3s64.c
@@ -8,6 +8,8 @@
*/
#include <linux/sched.h>
+#include <linux/mm_types.h>
+
#include <asm/pgalloc.h>
#include <asm/tlb.h>
diff --git a/arch/powerpc/mm/pgtable-hash64.c b/arch/powerpc/mm/pgtable-hash64.c
index c23e286a6b8f..8b85a14b08ea 100644
--- a/arch/powerpc/mm/pgtable-hash64.c
+++ b/arch/powerpc/mm/pgtable-hash64.c
@@ -10,6 +10,8 @@
*/
#include <linux/sched.h>
+#include <linux/mm_types.h>
+
#include <asm/pgalloc.h>
#include <asm/tlb.h>
diff --git a/arch/powerpc/mm/pgtable-radix.c b/arch/powerpc/mm/pgtable-radix.c
index cfa53ccc8baf..d593edc836a3 100644
--- a/arch/powerpc/mm/pgtable-radix.c
+++ b/arch/powerpc/mm/pgtable-radix.c
@@ -8,7 +8,7 @@
* as published by the Free Software Foundation; either version
* 2 of the License, or (at your option) any later version.
*/
-#include <linux/sched.h>
+#include <linux/sched/mm.h>
#include <linux/memblock.h>
#include <linux/of_fdt.h>
diff --git a/arch/powerpc/mm/slb.c b/arch/powerpc/mm/slb.c
index 48fc28bab544..5e01b2ece1d0 100644
--- a/arch/powerpc/mm/slb.c
+++ b/arch/powerpc/mm/slb.c
@@ -22,6 +22,8 @@
#include <asm/cacheflush.h>
#include <asm/smp.h>
#include <linux/compiler.h>
+#include <linux/mm_types.h>
+
#include <asm/udbg.h>
#include <asm/code-patching.h>
diff --git a/arch/s390/include/asm/elf.h b/arch/s390/include/asm/elf.h
index f4381e1fb19e..82e2227a5ef7 100644
--- a/arch/s390/include/asm/elf.h
+++ b/arch/s390/include/asm/elf.h
@@ -130,7 +130,7 @@ typedef s390_fp_regs compat_elf_fpregset_t;
typedef s390_compat_regs compat_elf_gregset_t;
#include <linux/compat.h>
-#include <linux/sched.h> /* for task_struct */
+#include <linux/sched/mm.h> /* for task_struct */
#include <asm/mmu_context.h>
#include <asm/vdso.h>
diff --git a/arch/s390/include/asm/mmu_context.h b/arch/s390/include/asm/mmu_context.h
index 67f7a991c929..dc94b730c1e1 100644
--- a/arch/s390/include/asm/mmu_context.h
+++ b/arch/s390/include/asm/mmu_context.h
@@ -9,6 +9,7 @@
#include <asm/pgalloc.h>
#include <linux/uaccess.h>
+#include <linux/mm_types.h>
#include <asm/tlbflush.h>
#include <asm/ctl_reg.h>
diff --git a/arch/s390/kernel/processor.c b/arch/s390/kernel/processor.c
index 9e60ef144d03..3333b16275b4 100644
--- a/arch/s390/kernel/processor.c
+++ b/arch/s390/kernel/processor.c
@@ -10,6 +10,7 @@
#include <linux/kernel.h>
#include <linux/init.h>
#include <linux/seq_file.h>
+#include <linux/mm_types.h>
#include <linux/delay.h>
#include <linux/cpu.h>
#include <asm/diag.h>
diff --git a/arch/s390/kvm/gaccess.c b/arch/s390/kvm/gaccess.c
index 4aa8a7e2a1da..4d469439471a 100644
--- a/arch/s390/kvm/gaccess.c
+++ b/arch/s390/kvm/gaccess.c
@@ -6,7 +6,9 @@
*/
#include <linux/vmalloc.h>
+#include <linux/mm_types.h>
#include <linux/err.h>
+
#include <asm/pgtable.h>
#include <asm/gmap.h>
#include "kvm-s390.h"
diff --git a/arch/s390/kvm/priv.c b/arch/s390/kvm/priv.c
index e18435355c16..86412effc669 100644
--- a/arch/s390/kvm/priv.c
+++ b/arch/s390/kvm/priv.c
@@ -15,6 +15,8 @@
#include <linux/gfp.h>
#include <linux/errno.h>
#include <linux/compat.h>
+#include <linux/mm_types.h>
+
#include <asm/asm-offsets.h>
#include <asm/facility.h>
#include <asm/current.h>
diff --git a/arch/score/include/asm/mmu_context.h b/arch/score/include/asm/mmu_context.h
index 2644577c96e8..073f95d350de 100644
--- a/arch/score/include/asm/mmu_context.h
+++ b/arch/score/include/asm/mmu_context.h
@@ -3,7 +3,9 @@
#include <linux/errno.h>
#include <linux/sched.h>
+#include <linux/mm_types.h>
#include <linux/slab.h>
+
#include <asm-generic/mm_hooks.h>
#include <asm/cacheflush.h>
diff --git a/arch/score/kernel/traps.c b/arch/score/kernel/traps.c
index 7ba9d67ab0ef..1b74a0c3f25e 100644
--- a/arch/score/kernel/traps.c
+++ b/arch/score/kernel/traps.c
@@ -26,6 +26,7 @@
#include <linux/module.h>
#include <linux/sched/signal.h>
#include <linux/sched/debug.h>
+#include <linux/mm_types.h>
#include <asm/cacheflush.h>
#include <asm/irq.h>
diff --git a/arch/sh/include/asm/mmu_context.h b/arch/sh/include/asm/mmu_context.h
index 35ffdd081d26..eb6ac3c10c44 100644
--- a/arch/sh/include/asm/mmu_context.h
+++ b/arch/sh/include/asm/mmu_context.h
@@ -11,6 +11,8 @@
#include <cpu/mmu_context.h>
#include <asm/tlbflush.h>
#include <linux/uaccess.h>
+#include <linux/mm_types.h>
+
#include <asm/io.h>
#include <asm-generic/mm_hooks.h>
diff --git a/arch/sparc/include/asm/mmu_context_64.h b/arch/sparc/include/asm/mmu_context_64.h
index d0317993e947..22fede6eba11 100644
--- a/arch/sparc/include/asm/mmu_context_64.h
+++ b/arch/sparc/include/asm/mmu_context_64.h
@@ -6,6 +6,8 @@
#ifndef __ASSEMBLY__
#include <linux/spinlock.h>
+#include <linux/mm_types.h>
+
#include <asm/spitfire.h>
#include <asm-generic/mm_hooks.h>
diff --git a/arch/sparc/include/asm/pgtable_64.h b/arch/sparc/include/asm/pgtable_64.h
index 314b66851348..5d01cbf2e076 100644
--- a/arch/sparc/include/asm/pgtable_64.h
+++ b/arch/sparc/include/asm/pgtable_64.h
@@ -873,6 +873,9 @@ static inline unsigned long pud_pfn(pud_t pud)
#define pte_offset_map pte_index
#define pte_unmap(pte) do { } while (0)
+/* We cannot include <linux/mm_types.h> at this point yet: */
+extern struct mm_struct init_mm;
+
/* Actual page table PTE updates. */
void tlb_batch_add(struct mm_struct *mm, unsigned long vaddr,
pte_t *ptep, pte_t orig, int fullmm);
diff --git a/arch/sparc/kernel/asm-offsets.c b/arch/sparc/kernel/asm-offsets.c
index f76389a32342..3f09e1c83f58 100644
--- a/arch/sparc/kernel/asm-offsets.c
+++ b/arch/sparc/kernel/asm-offsets.c
@@ -11,6 +11,7 @@
*/
#include <linux/sched.h>
+#include <linux/mm_types.h>
// #include <linux/mm.h>
#include <linux/kbuild.h>
diff --git a/arch/sparc/kernel/traps_32.c b/arch/sparc/kernel/traps_32.c
index 304d2c9babb5..bd32d51c8955 100644
--- a/arch/sparc/kernel/traps_32.c
+++ b/arch/sparc/kernel/traps_32.c
@@ -11,6 +11,7 @@
#include <linux/sched.h> /* for jiffies */
#include <linux/sched/debug.h>
+#include <linux/mm_types.h>
#include <linux/kernel.h>
#include <linux/signal.h>
#include <linux/smp.h>
diff --git a/arch/sparc/mm/tsb.c b/arch/sparc/mm/tsb.c
index e20fbbafb0b0..a78017f97191 100644
--- a/arch/sparc/mm/tsb.c
+++ b/arch/sparc/mm/tsb.c
@@ -6,6 +6,8 @@
#include <linux/kernel.h>
#include <linux/preempt.h>
#include <linux/slab.h>
+#include <linux/mm_types.h>
+
#include <asm/page.h>
#include <asm/pgtable.h>
#include <asm/mmu_context.h>
diff --git a/arch/tile/include/asm/mmu_context.h b/arch/tile/include/asm/mmu_context.h
index f67753db1f78..45a4b4c424cf 100644
--- a/arch/tile/include/asm/mmu_context.h
+++ b/arch/tile/include/asm/mmu_context.h
@@ -16,6 +16,8 @@
#define _ASM_TILE_MMU_CONTEXT_H
#include <linux/smp.h>
+#include <linux/mm_types.h>
+
#include <asm/setup.h>
#include <asm/page.h>
#include <asm/pgalloc.h>
diff --git a/arch/um/include/asm/mmu_context.h b/arch/um/include/asm/mmu_context.h
index 1a60e1328e2f..94ac2739918c 100644
--- a/arch/um/include/asm/mmu_context.h
+++ b/arch/um/include/asm/mmu_context.h
@@ -7,6 +7,8 @@
#define __UM_MMU_CONTEXT_H
#include <linux/sched.h>
+#include <linux/mm_types.h>
+
#include <asm/mmu.h>
extern void uml_setup_stubs(struct mm_struct *mm);
diff --git a/arch/um/kernel/exec.c b/arch/um/kernel/exec.c
index 31968677a0d0..a43d42bf0a86 100644
--- a/arch/um/kernel/exec.c
+++ b/arch/um/kernel/exec.c
@@ -7,7 +7,7 @@
#include <linux/module.h>
#include <linux/fs.h>
#include <linux/ptrace.h>
-#include <linux/sched.h>
+#include <linux/sched/mm.h>
#include <linux/sched/task.h>
#include <linux/sched/task_stack.h>
#include <linux/slab.h>
diff --git a/arch/um/kernel/reboot.c b/arch/um/kernel/reboot.c
index 0bc921cee0b1..71f3e9217cf2 100644
--- a/arch/um/kernel/reboot.c
+++ b/arch/um/kernel/reboot.c
@@ -5,6 +5,7 @@
#include <linux/sched/signal.h>
#include <linux/sched/task.h>
+#include <linux/sched/mm.h>
#include <linux/spinlock.h>
#include <linux/slab.h>
#include <linux/oom.h>
diff --git a/arch/um/kernel/skas/process.c b/arch/um/kernel/skas/process.c
index ddecf326dab2..3a952a4f7965 100644
--- a/arch/um/kernel/skas/process.c
+++ b/arch/um/kernel/skas/process.c
@@ -4,8 +4,9 @@
*/
#include <linux/init.h>
-#include <linux/sched.h>
+#include <linux/sched/mm.h>
#include <linux/sched/task_stack.h>
+
#include <as-layout.h>
#include <kern.h>
#include <os.h>
diff --git a/arch/x86/entry/vsyscall/vsyscall_64.c b/arch/x86/entry/vsyscall/vsyscall_64.c
index df91fb393a01..ce1d7534fa53 100644
--- a/arch/x86/entry/vsyscall/vsyscall_64.c
+++ b/arch/x86/entry/vsyscall/vsyscall_64.c
@@ -28,6 +28,7 @@
#include <linux/kernel.h>
#include <linux/timer.h>
#include <linux/sched/signal.h>
+#include <linux/mm_types.h>
#include <linux/syscalls.h>
#include <linux/ratelimit.h>
diff --git a/arch/x86/events/core.c b/arch/x86/events/core.c
index 2ecc0e97772b..349d4d17aa7f 100644
--- a/arch/x86/events/core.c
+++ b/arch/x86/events/core.c
@@ -20,7 +20,7 @@
#include <linux/export.h>
#include <linux/init.h>
#include <linux/kdebug.h>
-#include <linux/sched.h>
+#include <linux/sched/mm.h>
#include <linux/sched/clock.h>
#include <linux/uaccess.h>
#include <linux/slab.h>
diff --git a/arch/x86/include/asm/a.out-core.h b/arch/x86/include/asm/a.out-core.h
index 7a15588e45d4..7d3ece8bfb61 100644
--- a/arch/x86/include/asm/a.out-core.h
+++ b/arch/x86/include/asm/a.out-core.h
@@ -17,6 +17,8 @@
#include <linux/user.h>
#include <linux/elfcore.h>
+#include <linux/mm_types.h>
+
#include <asm/debugreg.h>
/*
diff --git a/arch/x86/include/asm/mpx.h b/arch/x86/include/asm/mpx.h
index 0b416d4cf73b..a0d662be4c5b 100644
--- a/arch/x86/include/asm/mpx.h
+++ b/arch/x86/include/asm/mpx.h
@@ -2,6 +2,8 @@
#define _ASM_X86_MPX_H
#include <linux/types.h>
+#include <linux/mm_types.h>
+
#include <asm/ptrace.h>
#include <asm/insn.h>
diff --git a/arch/x86/mm/mpx.c b/arch/x86/mm/mpx.c
index af59f808742f..86c2d961b5f1 100644
--- a/arch/x86/mm/mpx.c
+++ b/arch/x86/mm/mpx.c
@@ -7,6 +7,7 @@
*/
#include <linux/kernel.h>
#include <linux/slab.h>
+#include <linux/mm_types.h>
#include <linux/syscalls.h>
#include <linux/sched/sysctl.h>
diff --git a/arch/x86/um/syscalls_64.c b/arch/x86/um/syscalls_64.c
index e6552275320b..10d907098c26 100644
--- a/arch/x86/um/syscalls_64.c
+++ b/arch/x86/um/syscalls_64.c
@@ -6,6 +6,7 @@
*/
#include <linux/sched.h>
+#include <linux/sched/mm.h>
#include <linux/uaccess.h>
#include <asm/prctl.h> /* XXX This should get the constants from libc */
#include <os.h>
diff --git a/arch/x86/xen/mmu.c b/arch/x86/xen/mmu.c
index 7d5afdb417cc..e96809e1fc5c 100644
--- a/arch/x86/xen/mmu.c
+++ b/arch/x86/xen/mmu.c
@@ -38,7 +38,7 @@
*
* Jeremy Fitzhardinge <jeremy@xensource.com>, XenSource Inc, 2007
*/
-#include <linux/sched.h>
+#include <linux/sched/mm.h>
#include <linux/highmem.h>
#include <linux/debugfs.h>
#include <linux/bug.h>
diff --git a/arch/xtensa/include/asm/mmu_context.h b/arch/xtensa/include/asm/mmu_context.h
index 04c8ebdc4517..f7e186dfc4e4 100644
--- a/arch/xtensa/include/asm/mmu_context.h
+++ b/arch/xtensa/include/asm/mmu_context.h
@@ -17,6 +17,7 @@
#include <linux/stringify.h>
#include <linux/sched.h>
+#include <linux/mm_types.h>
#include <asm/vectors.h>
diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_mqd_manager_cik.c b/drivers/gpu/drm/amd/amdkfd/kfd_mqd_manager_cik.c
index d83de985e88c..6acc4313363e 100644
--- a/drivers/gpu/drm/amd/amdkfd/kfd_mqd_manager_cik.c
+++ b/drivers/gpu/drm/amd/amdkfd/kfd_mqd_manager_cik.c
@@ -23,6 +23,8 @@
#include <linux/printk.h>
#include <linux/slab.h>
+#include <linux/mm_types.h>
+
#include "kfd_priv.h"
#include "kfd_mqd_manager.h"
#include "cik_regs.h"
diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_mqd_manager_vi.c b/drivers/gpu/drm/amd/amdkfd/kfd_mqd_manager_vi.c
index fa32c32fa1c2..a9b9882a9a77 100644
--- a/drivers/gpu/drm/amd/amdkfd/kfd_mqd_manager_vi.c
+++ b/drivers/gpu/drm/amd/amdkfd/kfd_mqd_manager_vi.c
@@ -23,6 +23,8 @@
#include <linux/printk.h>
#include <linux/slab.h>
+#include <linux/mm_types.h>
+
#include "kfd_priv.h"
#include "kfd_mqd_manager.h"
#include "vi_structs.h"
diff --git a/drivers/infiniband/hw/cxgb3/iwch_provider.c b/drivers/infiniband/hw/cxgb3/iwch_provider.c
index 6262dc035f3c..8ac91901b9cb 100644
--- a/drivers/infiniband/hw/cxgb3/iwch_provider.c
+++ b/drivers/infiniband/hw/cxgb3/iwch_provider.c
@@ -37,7 +37,7 @@
#include <linux/delay.h>
#include <linux/errno.h>
#include <linux/list.h>
-#include <linux/sched.h>
+#include <linux/sched/mm.h>
#include <linux/spinlock.h>
#include <linux/ethtool.h>
#include <linux/rtnetlink.h>
diff --git a/drivers/infiniband/hw/cxgb4/iw_cxgb4.h b/drivers/infiniband/hw/cxgb4/iw_cxgb4.h
index d19662f635b1..5846c47c8d55 100644
--- a/drivers/infiniband/hw/cxgb4/iw_cxgb4.h
+++ b/drivers/infiniband/hw/cxgb4/iw_cxgb4.h
@@ -37,7 +37,7 @@
#include <linux/idr.h>
#include <linux/completion.h>
#include <linux/netdevice.h>
-#include <linux/sched.h>
+#include <linux/sched/mm.h>
#include <linux/pci.h>
#include <linux/dma-mapping.h>
#include <linux/inet.h>
diff --git a/drivers/media/v4l2-core/videobuf-dma-sg.c b/drivers/media/v4l2-core/videobuf-dma-sg.c
index ba63ca57ed7e..7bb08a741fee 100644
--- a/drivers/media/v4l2-core/videobuf-dma-sg.c
+++ b/drivers/media/v4l2-core/videobuf-dma-sg.c
@@ -21,7 +21,7 @@
#include <linux/init.h>
#include <linux/module.h>
#include <linux/moduleparam.h>
-#include <linux/sched.h>
+#include <linux/sched/mm.h>
#include <linux/slab.h>
#include <linux/interrupt.h>
diff --git a/fs/binfmt_misc.c b/fs/binfmt_misc.c
index 9b4688ab1d8e..bee1a36bc2ec 100644
--- a/fs/binfmt_misc.c
+++ b/fs/binfmt_misc.c
@@ -12,7 +12,7 @@
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/init.h>
-#include <linux/sched.h>
+#include <linux/sched/mm.h>
#include <linux/magic.h>
#include <linux/binfmts.h>
#include <linux/slab.h>
diff --git a/fs/kernfs/file.c b/fs/kernfs/file.c
index 78219d5644e9..fe4f9107b1cb 100644
--- a/fs/kernfs/file.c
+++ b/fs/kernfs/file.c
@@ -13,7 +13,7 @@
#include <linux/slab.h>
#include <linux/poll.h>
#include <linux/pagemap.h>
-#include <linux/sched.h>
+#include <linux/sched/mm.h>
#include <linux/fsnotify.h>
#include "kernfs-internal.h"
diff --git a/include/drm/drm_mm.h b/include/drm/drm_mm.h
index 0b8371795aeb..cbcf138c9d44 100644
--- a/include/drm/drm_mm.h
+++ b/include/drm/drm_mm.h
@@ -39,6 +39,7 @@
#include <linux/bug.h>
#include <linux/rbtree.h>
#include <linux/kernel.h>
+#include <linux/mm_types.h>
#include <linux/list.h>
#include <linux/spinlock.h>
#ifdef CONFIG_DEBUG_FS
diff --git a/include/linux/init_task.h b/include/linux/init_task.h
index fda57da8731b..91d9049f0039 100644
--- a/include/linux/init_task.h
+++ b/include/linux/init_task.h
@@ -15,6 +15,7 @@
#include <linux/sched/autogroup.h>
#include <net/net_namespace.h>
#include <linux/sched/rt.h>
+#include <linux/mm_types.h>
#include <asm/thread_info.h>
diff --git a/include/linux/sched.h b/include/linux/sched.h
index bcfda8a42d88..5324feb49a04 100644
--- a/include/linux/sched.h
+++ b/include/linux/sched.h
@@ -6,7 +6,7 @@
#include <linux/sched/prio.h>
#include <linux/plist.h>
-#include <linux/mm_types.h>
+#include <linux/mm_types_task.h>
#include <linux/sem.h>
#include <linux/shm.h>
diff --git a/include/linux/sched/mm.h b/include/linux/sched/mm.h
index acbd122bb1ab..522a1aa070a3 100644
--- a/include/linux/sched/mm.h
+++ b/include/linux/sched/mm.h
@@ -4,6 +4,7 @@
#include <linux/kernel.h>
#include <linux/atomic.h>
#include <linux/sched.h>
+#include <linux/mm_types.h>
#include <linux/gfp.h>
/*
diff --git a/kernel/sched/debug.c b/kernel/sched/debug.c
index 109adc0e9cb9..e865d8bfb881 100644
--- a/kernel/sched/debug.c
+++ b/kernel/sched/debug.c
@@ -11,7 +11,7 @@
*/
#include <linux/proc_fs.h>
-#include <linux/sched.h>
+#include <linux/sched/mm.h>
#include <linux/seq_file.h>
#include <linux/kallsyms.h>
#include <linux/utsname.h>
diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c
index fcd520db8e32..6ab887fbf0ef 100644
--- a/kernel/sched/fair.c
+++ b/kernel/sched/fair.c
@@ -20,7 +20,7 @@
* Copyright (C) 2007 Red Hat, Inc., Peter Zijlstra
*/
-#include <linux/sched.h>
+#include <linux/sched/mm.h>
#include <linux/sched/topology.h>
#include <linux/latencytop.h>
diff --git a/kernel/signal.c b/kernel/signal.c
index dce87889527a..9701d4dc074e 100644
--- a/kernel/signal.c
+++ b/kernel/signal.c
@@ -13,7 +13,7 @@
#include <linux/slab.h>
#include <linux/export.h>
#include <linux/init.h>
-#include <linux/sched.h>
+#include <linux/sched/mm.h>
#include <linux/sched/user.h>
#include <linux/sched/debug.h>
#include <linux/sched/task.h>
diff --git a/lib/is_single_threaded.c b/lib/is_single_threaded.c
index 9745cfffcb69..8d4678edcc0e 100644
--- a/lib/is_single_threaded.c
+++ b/lib/is_single_threaded.c
@@ -10,6 +10,7 @@
* 2 of the Licence, or (at your option) any later version.
*/
#include <linux/sched/signal.h>
+#include <linux/sched/mm.h>
/*
* Returns true if the task does not share ->mm with another thread/process.
--
2.7.4
^ permalink raw reply related [flat|nested] 119+ messages in thread
* [PATCH 64/89] sched/headers: Remove 'init_pid_ns' prototype from <linux/sched.h>
2017-02-06 13:28 [PATCH 00/89] Major reorganization of <linux/sched.h> Ingo Molnar
` (62 preceding siblings ...)
2017-02-06 13:29 ` [PATCH 63/89] sched/headers: Remove the <linux/mm_types.h> dependency from <linux/sched.h> Ingo Molnar
@ 2017-02-06 13:29 ` Ingo Molnar
2017-02-06 13:29 ` [PATCH 65/89] sched/headers: Move 'init_task' and 'init_thread_union' from <linux/sched.h> to <linux/sched/task.h> Ingo Molnar
` (26 subsequent siblings)
90 siblings, 0 replies; 119+ messages in thread
From: Ingo Molnar @ 2017-02-06 13:29 UTC (permalink / raw)
To: linux-kernel
Cc: Andrew Morton, Linus Torvalds, Mike Galbraith, Oleg Nesterov,
Peter Zijlstra, Thomas Gleixner
pid.h already defines it.
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
include/linux/sched.h | 2 --
1 file changed, 2 deletions(-)
diff --git a/include/linux/sched.h b/include/linux/sched.h
index 5324feb49a04..1d4ea71c550a 100644
--- a/include/linux/sched.h
+++ b/include/linux/sched.h
@@ -1462,8 +1462,6 @@ static inline int kstack_end(void *addr)
extern union thread_union init_thread_union;
extern struct task_struct init_task;
-extern struct pid_namespace init_pid_ns;
-
/*
* find a task by one of its numerical ids
*
--
2.7.4
^ permalink raw reply related [flat|nested] 119+ messages in thread
* [PATCH 65/89] sched/headers: Move 'init_task' and 'init_thread_union' from <linux/sched.h> to <linux/sched/task.h>
2017-02-06 13:28 [PATCH 00/89] Major reorganization of <linux/sched.h> Ingo Molnar
` (63 preceding siblings ...)
2017-02-06 13:29 ` [PATCH 64/89] sched/headers: Remove 'init_pid_ns' prototype " Ingo Molnar
@ 2017-02-06 13:29 ` Ingo Molnar
2017-02-06 13:29 ` [PATCH 66/89] sched/headers: Use <linux/rcuupdate.h> instead of <linux/rculist.h> in <linux/sched.h> Ingo Molnar
` (25 subsequent siblings)
90 siblings, 0 replies; 119+ messages in thread
From: Ingo Molnar @ 2017-02-06 13:29 UTC (permalink / raw)
To: linux-kernel
Cc: Andrew Morton, Linus Torvalds, Mike Galbraith, Oleg Nesterov,
Peter Zijlstra, Thomas Gleixner
'init_task' is really not part of core scheduler APIs but part of
the fork() interface between the scheduler and process management.
So move the declarations - and update affected code.
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
arch/arm64/kernel/setup.c | 1 +
arch/arm64/mm/kasan_init.c | 1 +
arch/frv/mm/init.c | 1 +
arch/metag/mm/init.c | 1 +
arch/nios2/kernel/setup.c | 1 +
arch/powerpc/kernel/paca.c | 1 +
arch/um/kernel/skas/process.c | 1 +
arch/um/kernel/um_arch.c | 2 ++
arch/x86/kernel/cpu/common.c | 1 +
arch/x86/mm/kasan_init_64.c | 1 +
fs/namespace.c | 2 ++
include/linux/sched.h | 3 ---
include/linux/sched/signal.h | 1 +
include/linux/sched/task.h | 8 ++++++--
init/init_task.c | 1 +
kernel/delayacct.c | 1 +
lib/is_single_threaded.c | 1 +
mm/vmacache.c | 1 +
18 files changed, 24 insertions(+), 5 deletions(-)
diff --git a/arch/arm64/kernel/setup.c b/arch/arm64/kernel/setup.c
index b051367e2149..73e91be22dd4 100644
--- a/arch/arm64/kernel/setup.c
+++ b/arch/arm64/kernel/setup.c
@@ -42,6 +42,7 @@
#include <linux/of_fdt.h>
#include <linux/efi.h>
#include <linux/psci.h>
+#include <linux/sched/task.h>
#include <asm/acpi.h>
#include <asm/fixmap.h>
diff --git a/arch/arm64/mm/kasan_init.c b/arch/arm64/mm/kasan_init.c
index 757009daa9ed..ee972cd08e74 100644
--- a/arch/arm64/mm/kasan_init.c
+++ b/arch/arm64/mm/kasan_init.c
@@ -13,6 +13,7 @@
#define pr_fmt(fmt) "kasan: " fmt
#include <linux/kasan.h>
#include <linux/kernel.h>
+#include <linux/sched/task.h>
#include <linux/memblock.h>
#include <linux/start_kernel.h>
diff --git a/arch/frv/mm/init.c b/arch/frv/mm/init.c
index 88a159743528..328f0a292316 100644
--- a/arch/frv/mm/init.c
+++ b/arch/frv/mm/init.c
@@ -18,6 +18,7 @@
#include <linux/signal.h>
#include <linux/sched.h>
+#include <linux/sched/task.h>
#include <linux/pagemap.h>
#include <linux/gfp.h>
#include <linux/swap.h>
diff --git a/arch/metag/mm/init.c b/arch/metag/mm/init.c
index c0ec116b3993..188d4d9fbed4 100644
--- a/arch/metag/mm/init.c
+++ b/arch/metag/mm/init.c
@@ -12,6 +12,7 @@
#include <linux/percpu.h>
#include <linux/memblock.h>
#include <linux/initrd.h>
+#include <linux/sched/task.h>
#include <asm/setup.h>
#include <asm/page.h>
diff --git a/arch/nios2/kernel/setup.c b/arch/nios2/kernel/setup.c
index a3fa80d1aacc..6e57ffa5db27 100644
--- a/arch/nios2/kernel/setup.c
+++ b/arch/nios2/kernel/setup.c
@@ -14,6 +14,7 @@
#include <linux/kernel.h>
#include <linux/mm.h>
#include <linux/sched.h>
+#include <linux/sched/task.h>
#include <linux/console.h>
#include <linux/bootmem.h>
#include <linux/initrd.h>
diff --git a/arch/powerpc/kernel/paca.c b/arch/powerpc/kernel/paca.c
index fa20060ff7a5..dfc479df9634 100644
--- a/arch/powerpc/kernel/paca.c
+++ b/arch/powerpc/kernel/paca.c
@@ -10,6 +10,7 @@
#include <linux/smp.h>
#include <linux/export.h>
#include <linux/memblock.h>
+#include <linux/sched/task.h>
#include <asm/lppaca.h>
#include <asm/paca.h>
diff --git a/arch/um/kernel/skas/process.c b/arch/um/kernel/skas/process.c
index 3a952a4f7965..d4dbf08722d6 100644
--- a/arch/um/kernel/skas/process.c
+++ b/arch/um/kernel/skas/process.c
@@ -6,6 +6,7 @@
#include <linux/init.h>
#include <linux/sched/mm.h>
#include <linux/sched/task_stack.h>
+#include <linux/sched/task.h>
#include <as-layout.h>
#include <kern.h>
diff --git a/arch/um/kernel/um_arch.c b/arch/um/kernel/um_arch.c
index e8175a8aa22c..4b85acd4020c 100644
--- a/arch/um/kernel/um_arch.c
+++ b/arch/um/kernel/um_arch.c
@@ -11,7 +11,9 @@
#include <linux/string.h>
#include <linux/utsname.h>
#include <linux/sched.h>
+#include <linux/sched/task.h>
#include <linux/kmsg_dump.h>
+
#include <asm/pgtable.h>
#include <asm/processor.h>
#include <asm/sections.h>
diff --git a/arch/x86/kernel/cpu/common.c b/arch/x86/kernel/cpu/common.c
index 79f25eca10eb..211ca8abde45 100644
--- a/arch/x86/kernel/cpu/common.c
+++ b/arch/x86/kernel/cpu/common.c
@@ -9,6 +9,7 @@
#include <linux/delay.h>
#include <linux/sched.h>
#include <linux/sched/clock.h>
+#include <linux/sched/task.h>
#include <linux/init.h>
#include <linux/kprobes.h>
#include <linux/kgdb.h>
diff --git a/arch/x86/mm/kasan_init_64.c b/arch/x86/mm/kasan_init_64.c
index 0493c17b8a51..8d63d7a104c3 100644
--- a/arch/x86/mm/kasan_init_64.c
+++ b/arch/x86/mm/kasan_init_64.c
@@ -4,6 +4,7 @@
#include <linux/kdebug.h>
#include <linux/mm.h>
#include <linux/sched.h>
+#include <linux/sched/task.h>
#include <linux/vmalloc.h>
#include <asm/tlbflush.h>
diff --git a/fs/namespace.c b/fs/namespace.c
index b2ea27d8312c..47b4b27ecb44 100644
--- a/fs/namespace.c
+++ b/fs/namespace.c
@@ -25,6 +25,8 @@
#include <linux/magic.h>
#include <linux/bootmem.h>
#include <linux/task_work.h>
+#include <linux/sched/task.h>
+
#include "pnode.h"
#include "internal.h"
diff --git a/include/linux/sched.h b/include/linux/sched.h
index 1d4ea71c550a..4cd39052403b 100644
--- a/include/linux/sched.h
+++ b/include/linux/sched.h
@@ -1459,9 +1459,6 @@ static inline int kstack_end(void *addr)
}
#endif
-extern union thread_union init_thread_union;
-extern struct task_struct init_task;
-
/*
* find a task by one of its numerical ids
*
diff --git a/include/linux/sched/signal.h b/include/linux/sched/signal.h
index cad4d6eea663..d2dff79d14da 100644
--- a/include/linux/sched/signal.h
+++ b/include/linux/sched/signal.h
@@ -4,6 +4,7 @@
#include <linux/signal.h>
#include <linux/sched.h>
#include <linux/sched/jobctl.h>
+#include <linux/sched/task.h>
#include <linux/cred.h>
/*
diff --git a/include/linux/sched/task.h b/include/linux/sched/task.h
index 5cdb7ee3978b..5bc61717086a 100644
--- a/include/linux/sched/task.h
+++ b/include/linux/sched/task.h
@@ -3,13 +3,14 @@
#include <linux/spinlock.h>
-struct task_struct;
-
/*
* Interface between the scheduler and various task lifetime (fork()/exit())
* functionality:
*/
+struct task_struct;
+union thread_union;
+
/*
* This serializes "schedule()" and also protects
* the run-queue from deletions/modifications (but
@@ -19,6 +20,9 @@ struct task_struct;
extern rwlock_t tasklist_lock;
extern spinlock_t mmlist_lock;
+extern union thread_union init_thread_union;
+extern struct task_struct init_task;
+
#ifdef CONFIG_PROVE_RCU
extern int lockdep_tasklist_lock_is_held(void);
#endif /* #ifdef CONFIG_PROVE_RCU */
diff --git a/init/init_task.c b/init/init_task.c
index 53d4ce942a88..66787e30a419 100644
--- a/init/init_task.c
+++ b/init/init_task.c
@@ -4,6 +4,7 @@
#include <linux/sched.h>
#include <linux/sched/sysctl.h>
#include <linux/sched/rt.h>
+#include <linux/sched/task.h>
#include <linux/init.h>
#include <linux/fs.h>
#include <linux/mm.h>
diff --git a/kernel/delayacct.c b/kernel/delayacct.c
index 660549656991..c94135fc2698 100644
--- a/kernel/delayacct.c
+++ b/kernel/delayacct.c
@@ -14,6 +14,7 @@
*/
#include <linux/sched.h>
+#include <linux/sched/task.h>
#include <linux/slab.h>
#include <linux/taskstats.h>
#include <linux/time.h>
diff --git a/lib/is_single_threaded.c b/lib/is_single_threaded.c
index 8d4678edcc0e..9c7d89df40ed 100644
--- a/lib/is_single_threaded.c
+++ b/lib/is_single_threaded.c
@@ -10,6 +10,7 @@
* 2 of the Licence, or (at your option) any later version.
*/
#include <linux/sched/signal.h>
+#include <linux/sched/task.h>
#include <linux/sched/mm.h>
/*
diff --git a/mm/vmacache.c b/mm/vmacache.c
index 4355d34c68a6..7ffa0ee341b5 100644
--- a/mm/vmacache.c
+++ b/mm/vmacache.c
@@ -2,6 +2,7 @@
* Copyright (C) 2014 Davidlohr Bueso.
*/
#include <linux/sched/signal.h>
+#include <linux/sched/task.h>
#include <linux/mm.h>
#include <linux/vmacache.h>
--
2.7.4
^ permalink raw reply related [flat|nested] 119+ messages in thread
* [PATCH 66/89] sched/headers: Use <linux/rcuupdate.h> instead of <linux/rculist.h> in <linux/sched.h>
2017-02-06 13:28 [PATCH 00/89] Major reorganization of <linux/sched.h> Ingo Molnar
` (64 preceding siblings ...)
2017-02-06 13:29 ` [PATCH 65/89] sched/headers: Move 'init_task' and 'init_thread_union' from <linux/sched.h> to <linux/sched/task.h> Ingo Molnar
@ 2017-02-06 13:29 ` Ingo Molnar
2017-02-06 13:29 ` [PATCH 67/89] sched/headers: Move the task_lock()/unlock() APIs to <linux/sched/task.h> Ingo Molnar
` (24 subsequent siblings)
90 siblings, 0 replies; 119+ messages in thread
From: Ingo Molnar @ 2017-02-06 13:29 UTC (permalink / raw)
To: linux-kernel
Cc: Andrew Morton, Linus Torvalds, Mike Galbraith, Oleg Nesterov,
Peter Zijlstra, Thomas Gleixner
We don't actually need the full rculist.h header anymore, include
the smaller rcupdate.h header instead.
Update code that relied on the implicit header inclusion.
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
arch/powerpc/kvm/book3s_mmu_hpte.c | 1 +
arch/x86/kvm/irq_comm.c | 2 ++
arch/x86/kvm/page_track.c | 2 ++
drivers/md/bcache/btree.c | 2 ++
drivers/misc/vmw_vmci/vmci_event.c | 1 +
drivers/nvme/target/admin-cmd.c | 2 ++
drivers/nvme/target/core.c | 2 ++
drivers/s390/cio/qdio_thinint.c | 2 ++
drivers/scsi/libfc/fc_disc.c | 2 ++
drivers/scsi/libfc/fc_rport.c | 2 ++
include/linux/dmar.h | 2 +-
include/linux/pid.h | 2 +-
include/linux/rhashtable.h | 2 +-
include/linux/sched.h | 2 +-
include/linux/sched/signal.h | 1 +
include/net/bluetooth/hci_core.h | 2 ++
kernel/trace/trace_events_hist.c | 1 +
kernel/trace/trace_events_trigger.c | 1 +
kernel/trace/trace_kprobe.c | 1 +
kernel/trace/trace_uprobe.c | 1 +
lib/bug.c | 1 +
lib/rhashtable.c | 1 +
net/mac80211/mesh_plink.c | 2 ++
net/mac802154/llsec.c | 2 ++
security/apparmor/policy.c | 1 +
security/tomoyo/domain.c | 2 ++
security/tomoyo/group.c | 2 ++
security/tomoyo/util.c | 2 ++
28 files changed, 42 insertions(+), 4 deletions(-)
diff --git a/arch/powerpc/kvm/book3s_mmu_hpte.c b/arch/powerpc/kvm/book3s_mmu_hpte.c
index 5a1ab1250a05..905a934c1ef4 100644
--- a/arch/powerpc/kvm/book3s_mmu_hpte.c
+++ b/arch/powerpc/kvm/book3s_mmu_hpte.c
@@ -21,6 +21,7 @@
#include <linux/kvm_host.h>
#include <linux/hash.h>
#include <linux/slab.h>
+#include <linux/rculist.h>
#include <asm/kvm_ppc.h>
#include <asm/kvm_book3s.h>
diff --git a/arch/x86/kvm/irq_comm.c b/arch/x86/kvm/irq_comm.c
index 6c0191615f23..a955f906c729 100644
--- a/arch/x86/kvm/irq_comm.c
+++ b/arch/x86/kvm/irq_comm.c
@@ -23,6 +23,8 @@
#include <linux/kvm_host.h>
#include <linux/slab.h>
#include <linux/export.h>
+#include <linux/rculist.h>
+
#include <trace/events/kvm.h>
#include <asm/msidef.h>
diff --git a/arch/x86/kvm/page_track.c b/arch/x86/kvm/page_track.c
index 4a1c13eaa518..37942e419c32 100644
--- a/arch/x86/kvm/page_track.c
+++ b/arch/x86/kvm/page_track.c
@@ -14,6 +14,8 @@
*/
#include <linux/kvm_host.h>
+#include <linux/rculist.h>
+
#include <asm/kvm_host.h>
#include <asm/kvm_page_track.h>
diff --git a/drivers/md/bcache/btree.c b/drivers/md/bcache/btree.c
index 384559af310e..450d0e848ae4 100644
--- a/drivers/md/bcache/btree.c
+++ b/drivers/md/bcache/btree.c
@@ -33,6 +33,8 @@
#include <linux/random.h>
#include <linux/rcupdate.h>
#include <linux/sched/clock.h>
+#include <linux/rculist.h>
+
#include <trace/events/bcache.h>
/*
diff --git a/drivers/misc/vmw_vmci/vmci_event.c b/drivers/misc/vmw_vmci/vmci_event.c
index 8449516d6ac6..84258a48029d 100644
--- a/drivers/misc/vmw_vmci/vmci_event.c
+++ b/drivers/misc/vmw_vmci/vmci_event.c
@@ -19,6 +19,7 @@
#include <linux/module.h>
#include <linux/sched.h>
#include <linux/slab.h>
+#include <linux/rculist.h>
#include "vmci_driver.h"
#include "vmci_event.h"
diff --git a/drivers/nvme/target/admin-cmd.c b/drivers/nvme/target/admin-cmd.c
index 95ae52390478..3fca44d7c42a 100644
--- a/drivers/nvme/target/admin-cmd.c
+++ b/drivers/nvme/target/admin-cmd.c
@@ -13,6 +13,8 @@
*/
#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
#include <linux/module.h>
+#include <linux/rculist.h>
+
#include <generated/utsrelease.h>
#include <asm/unaligned.h>
#include "nvmet.h"
diff --git a/drivers/nvme/target/core.c b/drivers/nvme/target/core.c
index fc5ba2f9e15f..966031dc48dc 100644
--- a/drivers/nvme/target/core.c
+++ b/drivers/nvme/target/core.c
@@ -14,6 +14,8 @@
#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
#include <linux/module.h>
#include <linux/random.h>
+#include <linux/rculist.h>
+
#include "nvmet.h"
static struct nvmet_fabrics_ops *nvmet_transports[NVMF_TRTYPE_MAX];
diff --git a/drivers/s390/cio/qdio_thinint.c b/drivers/s390/cio/qdio_thinint.c
index 5d06253c2a7a..2f451123e556 100644
--- a/drivers/s390/cio/qdio_thinint.c
+++ b/drivers/s390/cio/qdio_thinint.c
@@ -8,6 +8,8 @@
#include <linux/slab.h>
#include <linux/kernel_stat.h>
#include <linux/atomic.h>
+#include <linux/rculist.h>
+
#include <asm/debug.h>
#include <asm/qdio.h>
#include <asm/airq.h>
diff --git a/drivers/scsi/libfc/fc_disc.c b/drivers/scsi/libfc/fc_disc.c
index 6103231104da..fd501f8dbb11 100644
--- a/drivers/scsi/libfc/fc_disc.c
+++ b/drivers/scsi/libfc/fc_disc.c
@@ -36,6 +36,8 @@
#include <linux/slab.h>
#include <linux/err.h>
#include <linux/export.h>
+#include <linux/rculist.h>
+
#include <asm/unaligned.h>
#include <scsi/fc/fc_gs.h>
diff --git a/drivers/scsi/libfc/fc_rport.c b/drivers/scsi/libfc/fc_rport.c
index c991f3b822f8..b44c3136eb51 100644
--- a/drivers/scsi/libfc/fc_rport.c
+++ b/drivers/scsi/libfc/fc_rport.c
@@ -65,6 +65,8 @@
#include <linux/timer.h>
#include <linux/workqueue.h>
#include <linux/export.h>
+#include <linux/rculist.h>
+
#include <asm/unaligned.h>
#include <scsi/libfc.h>
diff --git a/include/linux/dmar.h b/include/linux/dmar.h
index e9bc9292bd3a..e8ffba1052d3 100644
--- a/include/linux/dmar.h
+++ b/include/linux/dmar.h
@@ -26,7 +26,7 @@
#include <linux/msi.h>
#include <linux/irqreturn.h>
#include <linux/rwsem.h>
-#include <linux/rcupdate.h>
+#include <linux/rculist.h>
struct acpi_dmar_header;
diff --git a/include/linux/pid.h b/include/linux/pid.h
index 23705a53abba..0e4d48112196 100644
--- a/include/linux/pid.h
+++ b/include/linux/pid.h
@@ -1,7 +1,7 @@
#ifndef _LINUX_PID_H
#define _LINUX_PID_H
-#include <linux/rcupdate.h>
+#include <linux/rculist.h>
enum pid_type
{
diff --git a/include/linux/rhashtable.h b/include/linux/rhashtable.h
index 5c132d3188be..0257d2066bcc 100644
--- a/include/linux/rhashtable.h
+++ b/include/linux/rhashtable.h
@@ -25,7 +25,7 @@
#include <linux/list_nulls.h>
#include <linux/workqueue.h>
#include <linux/mutex.h>
-#include <linux/rcupdate.h>
+#include <linux/rculist.h>
/*
* The end of the chain is marked with a special nulls marks which has
diff --git a/include/linux/sched.h b/include/linux/sched.h
index 4cd39052403b..6895db6ecf23 100644
--- a/include/linux/sched.h
+++ b/include/linux/sched.h
@@ -13,7 +13,7 @@
#include <linux/signal_types.h>
#include <linux/pid.h>
#include <linux/seccomp.h>
-#include <linux/rculist.h>
+#include <linux/rcupdate.h>
#include <linux/resource.h>
#include <linux/hrtimer.h>
diff --git a/include/linux/sched/signal.h b/include/linux/sched/signal.h
index d2dff79d14da..43415522eaa1 100644
--- a/include/linux/sched/signal.h
+++ b/include/linux/sched/signal.h
@@ -1,6 +1,7 @@
#ifndef _LINUX_SCHED_SIGNAL_H
#define _LINUX_SCHED_SIGNAL_H
+#include <linux/rculist.h>
#include <linux/signal.h>
#include <linux/sched.h>
#include <linux/sched/jobctl.h>
diff --git a/include/net/bluetooth/hci_core.h b/include/net/bluetooth/hci_core.h
index 90708f68cc02..95ccc1eef558 100644
--- a/include/net/bluetooth/hci_core.h
+++ b/include/net/bluetooth/hci_core.h
@@ -26,6 +26,8 @@
#define __HCI_CORE_H
#include <linux/leds.h>
+#include <linux/rculist.h>
+
#include <net/bluetooth/hci.h>
#include <net/bluetooth/hci_sock.h>
diff --git a/kernel/trace/trace_events_hist.c b/kernel/trace/trace_events_hist.c
index f3a960ed75a1..1c21d0e2a145 100644
--- a/kernel/trace/trace_events_hist.c
+++ b/kernel/trace/trace_events_hist.c
@@ -19,6 +19,7 @@
#include <linux/mutex.h>
#include <linux/slab.h>
#include <linux/stacktrace.h>
+#include <linux/rculist.h>
#include "tracing_map.h"
#include "trace.h"
diff --git a/kernel/trace/trace_events_trigger.c b/kernel/trace/trace_events_trigger.c
index 6721a1e89f39..f2ac9d44f6c4 100644
--- a/kernel/trace/trace_events_trigger.c
+++ b/kernel/trace/trace_events_trigger.c
@@ -22,6 +22,7 @@
#include <linux/ctype.h>
#include <linux/mutex.h>
#include <linux/slab.h>
+#include <linux/rculist.h>
#include "trace.h"
diff --git a/kernel/trace/trace_kprobe.c b/kernel/trace/trace_kprobe.c
index a133ecd741e4..3c8f2373aee6 100644
--- a/kernel/trace/trace_kprobe.c
+++ b/kernel/trace/trace_kprobe.c
@@ -19,6 +19,7 @@
#include <linux/module.h>
#include <linux/uaccess.h>
+#include <linux/rculist.h>
#include "trace_probe.h"
diff --git a/kernel/trace/trace_uprobe.c b/kernel/trace/trace_uprobe.c
index 0913693caf6e..e5445ab5b7e2 100644
--- a/kernel/trace/trace_uprobe.c
+++ b/kernel/trace/trace_uprobe.c
@@ -23,6 +23,7 @@
#include <linux/uprobes.h>
#include <linux/namei.h>
#include <linux/string.h>
+#include <linux/rculist.h>
#include "trace_probe.h"
diff --git a/lib/bug.c b/lib/bug.c
index bc3656e944d2..06edbbef0623 100644
--- a/lib/bug.c
+++ b/lib/bug.c
@@ -45,6 +45,7 @@
#include <linux/kernel.h>
#include <linux/bug.h>
#include <linux/sched.h>
+#include <linux/rculist.h>
extern const struct bug_entry __start___bug_table[], __stop___bug_table[];
diff --git a/lib/rhashtable.c b/lib/rhashtable.c
index 32d0ad058380..b90f9547e5ef 100644
--- a/lib/rhashtable.c
+++ b/lib/rhashtable.c
@@ -19,6 +19,7 @@
#include <linux/init.h>
#include <linux/log2.h>
#include <linux/sched.h>
+#include <linux/rculist.h>
#include <linux/slab.h>
#include <linux/vmalloc.h>
#include <linux/mm.h>
diff --git a/net/mac80211/mesh_plink.c b/net/mac80211/mesh_plink.c
index 7fcdcf622655..b4d3a9625326 100644
--- a/net/mac80211/mesh_plink.c
+++ b/net/mac80211/mesh_plink.c
@@ -9,6 +9,8 @@
#include <linux/gfp.h>
#include <linux/kernel.h>
#include <linux/random.h>
+#include <linux/rculist.h>
+
#include "ieee80211_i.h"
#include "rate.h"
#include "mesh.h"
diff --git a/net/mac802154/llsec.c b/net/mac802154/llsec.c
index 6a3e1c2181d3..1e1c9b20bab7 100644
--- a/net/mac802154/llsec.c
+++ b/net/mac802154/llsec.c
@@ -18,6 +18,8 @@
#include <linux/bug.h>
#include <linux/completion.h>
#include <linux/ieee802154.h>
+#include <linux/rculist.h>
+
#include <crypto/aead.h>
#include <crypto/skcipher.h>
diff --git a/security/apparmor/policy.c b/security/apparmor/policy.c
index ac4092e191b1..57d08b6b7272 100644
--- a/security/apparmor/policy.c
+++ b/security/apparmor/policy.c
@@ -77,6 +77,7 @@
#include <linux/spinlock.h>
#include <linux/string.h>
#include <linux/cred.h>
+#include <linux/rculist.h>
#include "include/apparmor.h"
#include "include/capability.h"
diff --git a/security/tomoyo/domain.c b/security/tomoyo/domain.c
index 838ffa78cfda..00d223e9fb37 100644
--- a/security/tomoyo/domain.c
+++ b/security/tomoyo/domain.c
@@ -5,8 +5,10 @@
*/
#include "common.h"
+
#include <linux/binfmts.h>
#include <linux/slab.h>
+#include <linux/rculist.h>
/* Variables definitions.*/
diff --git a/security/tomoyo/group.c b/security/tomoyo/group.c
index 50092534ec54..944ad77d8fba 100644
--- a/security/tomoyo/group.c
+++ b/security/tomoyo/group.c
@@ -5,6 +5,8 @@
*/
#include <linux/slab.h>
+#include <linux/rculist.h>
+
#include "common.h"
/**
diff --git a/security/tomoyo/util.c b/security/tomoyo/util.c
index 5fe3679137ae..848317fea704 100644
--- a/security/tomoyo/util.c
+++ b/security/tomoyo/util.c
@@ -5,6 +5,8 @@
*/
#include <linux/slab.h>
+#include <linux/rculist.h>
+
#include "common.h"
/* Lock for protecting policy. */
--
2.7.4
^ permalink raw reply related [flat|nested] 119+ messages in thread
* [PATCH 67/89] sched/headers: Move the task_lock()/unlock() APIs to <linux/sched/task.h>
2017-02-06 13:28 [PATCH 00/89] Major reorganization of <linux/sched.h> Ingo Molnar
` (65 preceding siblings ...)
2017-02-06 13:29 ` [PATCH 66/89] sched/headers: Use <linux/rcuupdate.h> instead of <linux/rculist.h> in <linux/sched.h> Ingo Molnar
@ 2017-02-06 13:29 ` Ingo Molnar
2017-02-06 13:29 ` [PATCH 68/89] sched/headers: Split cputime functionality out of <linux/sched.h>, into <linux/sched/cputime.h> Ingo Molnar
` (23 subsequent siblings)
90 siblings, 0 replies; 119+ messages in thread
From: Ingo Molnar @ 2017-02-06 13:29 UTC (permalink / raw)
To: linux-kernel
Cc: Andrew Morton, Linus Torvalds, Mike Galbraith, Oleg Nesterov,
Peter Zijlstra, Thomas Gleixner
The task_lock()/task_unlock() APIs are not realated to core scheduling,
they are task lifetime APIs, i.e. they belong into <linux/sched/task.h>.
Move them and update the code that uses these facilities.
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
arch/mips/math-emu/dsemul.c | 1 +
block/blk-ioc.c | 1 +
block/ioprio.c | 1 +
drivers/staging/android/ion/ion.c | 1 +
drivers/staging/lustre/lustre/ptlrpc/sec.c | 1 +
fs/proc/internal.h | 1 +
fs/proc/proc_net.c | 1 +
fs/proc_namespace.c | 2 ++
include/linux/cpuset.h | 1 +
include/linux/sched.h | 20 --------------------
include/linux/sched/task.h | 22 +++++++++++++++++++++-
ipc/namespace.c | 1 +
kernel/cpuset.c | 1 +
kernel/sched/debug.c | 1 +
kernel/utsname.c | 1 +
mm/mempolicy.c | 1 +
mm/mmu_context.c | 1 +
net/core/net_namespace.c | 2 ++
net/core/netclassid_cgroup.c | 2 ++
net/core/netprio_cgroup.c | 2 ++
20 files changed, 43 insertions(+), 21 deletions(-)
diff --git a/arch/mips/math-emu/dsemul.c b/arch/mips/math-emu/dsemul.c
index 6664908514b3..b6bfd3625369 100644
--- a/arch/mips/math-emu/dsemul.c
+++ b/arch/mips/math-emu/dsemul.c
@@ -1,6 +1,7 @@
#include <linux/err.h>
#include <linux/slab.h>
#include <linux/mm_types.h>
+#include <linux/sched/task.h>
#include <asm/branch.h>
#include <asm/cacheflush.h>
diff --git a/block/blk-ioc.c b/block/blk-ioc.c
index 381cb50a673c..f646f8b119e2 100644
--- a/block/blk-ioc.c
+++ b/block/blk-ioc.c
@@ -7,6 +7,7 @@
#include <linux/bio.h>
#include <linux/blkdev.h>
#include <linux/slab.h>
+#include <linux/sched/task.h>
#include "blk.h"
diff --git a/block/ioprio.c b/block/ioprio.c
index 88e916d30180..0354b309ca0e 100644
--- a/block/ioprio.c
+++ b/block/ioprio.c
@@ -27,6 +27,7 @@
#include <linux/blkdev.h>
#include <linux/capability.h>
#include <linux/sched/user.h>
+#include <linux/sched/task.h>
#include <linux/syscalls.h>
#include <linux/security.h>
#include <linux/pid_namespace.h>
diff --git a/drivers/staging/android/ion/ion.c b/drivers/staging/android/ion/ion.c
index 937c2d5d7ec3..f913b87c1a01 100644
--- a/drivers/staging/android/ion/ion.c
+++ b/drivers/staging/android/ion/ion.c
@@ -36,6 +36,7 @@
#include <linux/debugfs.h>
#include <linux/dma-buf.h>
#include <linux/idr.h>
+#include <linux/sched/task.h>
#include "ion.h"
#include "ion_priv.h"
diff --git a/drivers/staging/lustre/lustre/ptlrpc/sec.c b/drivers/staging/lustre/lustre/ptlrpc/sec.c
index 49f34fd655c3..366f2ce20f5e 100644
--- a/drivers/staging/lustre/lustre/ptlrpc/sec.c
+++ b/drivers/staging/lustre/lustre/ptlrpc/sec.c
@@ -40,6 +40,7 @@
#include <linux/crypto.h>
#include <linux/cred.h>
#include <linux/key.h>
+#include <linux/sched/task.h>
#include "../include/obd.h"
#include "../include/obd_class.h"
diff --git a/fs/proc/internal.h b/fs/proc/internal.h
index 6980c9a7e367..378410dee8cb 100644
--- a/fs/proc/internal.h
+++ b/fs/proc/internal.h
@@ -15,6 +15,7 @@
#include <linux/atomic.h>
#include <linux/binfmts.h>
#include <linux/sched/coredump.h>
+#include <linux/sched/task.h>
struct ctl_table_header;
struct mempolicy;
diff --git a/fs/proc/proc_net.c b/fs/proc/proc_net.c
index ffd72a6c6e04..5cbc65d7a1e1 100644
--- a/fs/proc/proc_net.c
+++ b/fs/proc/proc_net.c
@@ -17,6 +17,7 @@
#include <linux/slab.h>
#include <linux/init.h>
#include <linux/sched.h>
+#include <linux/sched/task.h>
#include <linux/module.h>
#include <linux/bitops.h>
#include <linux/mount.h>
diff --git a/fs/proc_namespace.c b/fs/proc_namespace.c
index 3f1190d18991..b5713fefb4c1 100644
--- a/fs/proc_namespace.c
+++ b/fs/proc_namespace.c
@@ -10,6 +10,8 @@
#include <linux/nsproxy.h>
#include <linux/security.h>
#include <linux/fs_struct.h>
+#include <linux/sched/task.h>
+
#include "proc/internal.h" /* only for get_proc_task() in ->open() */
#include "pnode.h"
diff --git a/include/linux/cpuset.h b/include/linux/cpuset.h
index c608c39cb161..611fce58d670 100644
--- a/include/linux/cpuset.h
+++ b/include/linux/cpuset.h
@@ -10,6 +10,7 @@
#include <linux/sched.h>
#include <linux/sched/topology.h>
+#include <linux/sched/task.h>
#include <linux/cpumask.h>
#include <linux/nodemask.h>
#include <linux/mm.h>
diff --git a/include/linux/sched.h b/include/linux/sched.h
index 6895db6ecf23..bccdc3fecded 100644
--- a/include/linux/sched.h
+++ b/include/linux/sched.h
@@ -1514,26 +1514,6 @@ static inline unsigned long wait_task_inactive(struct task_struct *p,
}
#endif
-/*
- * Protects ->fs, ->files, ->mm, ->group_info, ->comm, keyring
- * subscriptions and synchronises with wait4(). Also used in procfs. Also
- * pins the final release of task.io_context. Also protects ->cpuset and
- * ->cgroup.subsys[]. And ->vfork_done.
- *
- * Nests both inside and outside of read_lock(&tasklist_lock).
- * It must not be nested with write_lock_irq(&tasklist_lock),
- * neither inside nor outside.
- */
-static inline void task_lock(struct task_struct *p)
-{
- spin_lock(&p->alloc_lock);
-}
-
-static inline void task_unlock(struct task_struct *p)
-{
- spin_unlock(&p->alloc_lock);
-}
-
/* set thread flags in other task's structures
* - see asm/thread_info.h for TIF_xxxx flags available
*/
diff --git a/include/linux/sched/task.h b/include/linux/sched/task.h
index 5bc61717086a..26bc507eb07e 100644
--- a/include/linux/sched/task.h
+++ b/include/linux/sched/task.h
@@ -1,7 +1,7 @@
#ifndef _LINUX_SCHED_TASK_H
#define _LINUX_SCHED_TASK_H
-#include <linux/spinlock.h>
+#include <linux/sched.h>
/*
* Interface between the scheduler and various task lifetime (fork()/exit())
@@ -91,4 +91,24 @@ static inline struct vm_struct *task_stack_vm_area(const struct task_struct *t)
}
#endif
+/*
+ * Protects ->fs, ->files, ->mm, ->group_info, ->comm, keyring
+ * subscriptions and synchronises with wait4(). Also used in procfs. Also
+ * pins the final release of task.io_context. Also protects ->cpuset and
+ * ->cgroup.subsys[]. And ->vfork_done.
+ *
+ * Nests both inside and outside of read_lock(&tasklist_lock).
+ * It must not be nested with write_lock_irq(&tasklist_lock),
+ * neither inside nor outside.
+ */
+static inline void task_lock(struct task_struct *p)
+{
+ spin_lock(&p->alloc_lock);
+}
+
+static inline void task_unlock(struct task_struct *p)
+{
+ spin_unlock(&p->alloc_lock);
+}
+
#endif /* _LINUX_SCHED_TASK_H */
diff --git a/ipc/namespace.c b/ipc/namespace.c
index 1f1d713ac19c..b4d80f9f7246 100644
--- a/ipc/namespace.c
+++ b/ipc/namespace.c
@@ -14,6 +14,7 @@
#include <linux/mount.h>
#include <linux/user_namespace.h>
#include <linux/proc_ns.h>
+#include <linux/sched/task.h>
#include "util.h"
diff --git a/kernel/cpuset.c b/kernel/cpuset.c
index a5c46db2855c..0f41292be0fb 100644
--- a/kernel/cpuset.c
+++ b/kernel/cpuset.c
@@ -45,6 +45,7 @@
#include <linux/rcupdate.h>
#include <linux/sched.h>
#include <linux/sched/mm.h>
+#include <linux/sched/task.h>
#include <linux/seq_file.h>
#include <linux/security.h>
#include <linux/slab.h>
diff --git a/kernel/sched/debug.c b/kernel/sched/debug.c
index e865d8bfb881..38f019324f1a 100644
--- a/kernel/sched/debug.c
+++ b/kernel/sched/debug.c
@@ -12,6 +12,7 @@
#include <linux/proc_fs.h>
#include <linux/sched/mm.h>
+#include <linux/sched/task.h>
#include <linux/seq_file.h>
#include <linux/kallsyms.h>
#include <linux/utsname.h>
diff --git a/kernel/utsname.c b/kernel/utsname.c
index 06585ad296ff..913fe4336d2b 100644
--- a/kernel/utsname.c
+++ b/kernel/utsname.c
@@ -17,6 +17,7 @@
#include <linux/cred.h>
#include <linux/user_namespace.h>
#include <linux/proc_ns.h>
+#include <linux/sched/task.h>
static struct ucounts *inc_uts_namespaces(struct user_namespace *ns)
{
diff --git a/mm/mempolicy.c b/mm/mempolicy.c
index 18e0105810df..75b2745bac41 100644
--- a/mm/mempolicy.c
+++ b/mm/mempolicy.c
@@ -75,6 +75,7 @@
#include <linux/sched.h>
#include <linux/sched/mm.h>
#include <linux/sched/numa_balancing.h>
+#include <linux/sched/task.h>
#include <linux/nodemask.h>
#include <linux/cpuset.h>
#include <linux/slab.h>
diff --git a/mm/mmu_context.c b/mm/mmu_context.c
index 6d93bc207e90..03a9c6bbbb85 100644
--- a/mm/mmu_context.c
+++ b/mm/mmu_context.c
@@ -6,6 +6,7 @@
#include <linux/mm.h>
#include <linux/sched.h>
#include <linux/sched/mm.h>
+#include <linux/sched/task.h>
#include <linux/mmu_context.h>
#include <linux/export.h>
diff --git a/net/core/net_namespace.c b/net/core/net_namespace.c
index 3c4bbec39713..652468ff65b7 100644
--- a/net/core/net_namespace.c
+++ b/net/core/net_namespace.c
@@ -16,6 +16,8 @@
#include <linux/export.h>
#include <linux/user_namespace.h>
#include <linux/net_namespace.h>
+#include <linux/sched/task.h>
+
#include <net/sock.h>
#include <net/netlink.h>
#include <net/net_namespace.h>
diff --git a/net/core/netclassid_cgroup.c b/net/core/netclassid_cgroup.c
index 11fce17274f6..6ae56037bb13 100644
--- a/net/core/netclassid_cgroup.c
+++ b/net/core/netclassid_cgroup.c
@@ -12,6 +12,8 @@
#include <linux/slab.h>
#include <linux/cgroup.h>
#include <linux/fdtable.h>
+#include <linux/sched/task.h>
+
#include <net/cls_cgroup.h>
#include <net/sock.h>
diff --git a/net/core/netprio_cgroup.c b/net/core/netprio_cgroup.c
index 2ec86fc552df..0bf58c5d8eb5 100644
--- a/net/core/netprio_cgroup.c
+++ b/net/core/netprio_cgroup.c
@@ -19,6 +19,8 @@
#include <linux/cgroup.h>
#include <linux/rcupdate.h>
#include <linux/atomic.h>
+#include <linux/sched/task.h>
+
#include <net/rtnetlink.h>
#include <net/pkt_cls.h>
#include <net/sock.h>
--
2.7.4
^ permalink raw reply related [flat|nested] 119+ messages in thread
* [PATCH 68/89] sched/headers: Split cputime functionality out of <linux/sched.h>, into <linux/sched/cputime.h>
2017-02-06 13:28 [PATCH 00/89] Major reorganization of <linux/sched.h> Ingo Molnar
` (66 preceding siblings ...)
2017-02-06 13:29 ` [PATCH 67/89] sched/headers: Move the task_lock()/unlock() APIs to <linux/sched/task.h> Ingo Molnar
@ 2017-02-06 13:29 ` Ingo Molnar
2017-02-06 13:29 ` [PATCH 69/89] sched/headers: Move sched_info_on() and force_schedstat_enabled() from <linux/sched.h> to <linux/sched/stat.h> Ingo Molnar
` (22 subsequent siblings)
90 siblings, 0 replies; 119+ messages in thread
From: Ingo Molnar @ 2017-02-06 13:29 UTC (permalink / raw)
To: linux-kernel
Cc: Andrew Morton, Linus Torvalds, Mike Galbraith, Oleg Nesterov,
Peter Zijlstra, Thomas Gleixner
Move cputime related functionality out of <linux/sched.h>, as most code
that includes <linux/sched.h> does not use that functionality.
Move data types that are not included in task_struct directly to
the signal definitions, into <linux/sched/signal.h>.
Also merge the (small) existing <linux/cputime.h> header into <linux/sched/cputime.h>.
Update all code that relies on these facilities.
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
arch/alpha/kernel/osf_sys.c | 1 +
arch/ia64/kernel/time.c | 2 +-
arch/powerpc/kernel/time.c | 2 +-
arch/s390/kernel/idle.c | 2 +-
arch/s390/kernel/vtime.c | 2 +-
arch/x86/kernel/apm_32.c | 1 +
arch/x86/kvm/hyperv.c | 2 +
drivers/isdn/mISDN/stack.c | 1 +
drivers/s390/cio/cio.c | 2 +-
fs/binfmt_elf.c | 1 +
fs/binfmt_elf_fdpic.c | 1 +
fs/proc/array.c | 1 +
fs/proc/stat.c | 2 +-
include/linux/cputime.h | 13 -----
include/linux/sched.h | 89 -----------------------------
include/linux/sched/cputime.h | 187 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
include/linux/sched/signal.h | 33 +++++++++++
kernel/acct.c | 2 +
kernel/delayacct.c | 1 +
kernel/exit.c | 1 +
kernel/fork.c | 1 +
kernel/sched/cputime.c | 2 +-
kernel/sched/sched.h | 1 +
kernel/sched/stats.h | 111 ------------------------------------
kernel/signal.c | 1 +
kernel/sys.c | 1 +
kernel/time/itimer.c | 1 +
kernel/time/posix-cpu-timers.c | 1 +
kernel/tsacct.c | 1 +
29 files changed, 246 insertions(+), 220 deletions(-)
diff --git a/arch/alpha/kernel/osf_sys.c b/arch/alpha/kernel/osf_sys.c
index 73446baa632e..0b961093ca5c 100644
--- a/arch/alpha/kernel/osf_sys.c
+++ b/arch/alpha/kernel/osf_sys.c
@@ -14,6 +14,7 @@
#include <linux/sched/signal.h>
#include <linux/sched/mm.h>
#include <linux/sched/task_stack.h>
+#include <linux/sched/cputime.h>
#include <linux/kernel.h>
#include <linux/mm.h>
#include <linux/smp.h>
diff --git a/arch/ia64/kernel/time.c b/arch/ia64/kernel/time.c
index 144f9db7a876..aa7be020a904 100644
--- a/arch/ia64/kernel/time.c
+++ b/arch/ia64/kernel/time.c
@@ -22,7 +22,7 @@
#include <linux/timex.h>
#include <linux/timekeeper_internal.h>
#include <linux/platform_device.h>
-#include <linux/cputime.h>
+#include <linux/sched/cputime.h>
#include <asm/machvec.h>
#include <asm/delay.h>
diff --git a/arch/powerpc/kernel/time.c b/arch/powerpc/kernel/time.c
index e637298649c5..a5ae4bd5902c 100644
--- a/arch/powerpc/kernel/time.c
+++ b/arch/powerpc/kernel/time.c
@@ -58,7 +58,7 @@
#include <linux/clk-provider.h>
#include <linux/suspend.h>
#include <linux/rtc.h>
-#include <linux/cputime.h>
+#include <linux/sched/cputime.h>
#include <asm/trace.h>
#include <asm/io.h>
diff --git a/arch/s390/kernel/idle.c b/arch/s390/kernel/idle.c
index d3bf69ef42cf..cc8361c49923 100644
--- a/arch/s390/kernel/idle.c
+++ b/arch/s390/kernel/idle.c
@@ -12,7 +12,7 @@
#include <linux/notifier.h>
#include <linux/init.h>
#include <linux/cpu.h>
-#include <linux/cputime.h>
+#include <linux/sched/cputime.h>
#include <asm/nmi.h>
#include <asm/smp.h>
#include "entry.h"
diff --git a/arch/s390/kernel/vtime.c b/arch/s390/kernel/vtime.c
index b4a3e9e06ef2..15cb6189e6c5 100644
--- a/arch/s390/kernel/vtime.c
+++ b/arch/s390/kernel/vtime.c
@@ -6,7 +6,7 @@
*/
#include <linux/kernel_stat.h>
-#include <linux/cputime.h>
+#include <linux/sched/cputime.h>
#include <linux/export.h>
#include <linux/kernel.h>
#include <linux/timex.h>
diff --git a/arch/x86/kernel/apm_32.c b/arch/x86/kernel/apm_32.c
index dc04b30cbd60..5a414545e8a3 100644
--- a/arch/x86/kernel/apm_32.c
+++ b/arch/x86/kernel/apm_32.c
@@ -219,6 +219,7 @@
#include <linux/init.h>
#include <linux/time.h>
#include <linux/sched/signal.h>
+#include <linux/sched/cputime.h>
#include <linux/pm.h>
#include <linux/capability.h>
#include <linux/device.h>
diff --git a/arch/x86/kvm/hyperv.c b/arch/x86/kvm/hyperv.c
index 2ecd7dab4631..e1f048e7c886 100644
--- a/arch/x86/kvm/hyperv.c
+++ b/arch/x86/kvm/hyperv.c
@@ -28,6 +28,8 @@
#include <linux/kvm_host.h>
#include <linux/highmem.h>
+#include <linux/sched/cputime.h>
+
#include <asm/apicdef.h>
#include <trace/events/kvm.h>
diff --git a/drivers/isdn/mISDN/stack.c b/drivers/isdn/mISDN/stack.c
index 696f22fd5ab4..8b7faea2ddf8 100644
--- a/drivers/isdn/mISDN/stack.c
+++ b/drivers/isdn/mISDN/stack.c
@@ -19,6 +19,7 @@
#include <linux/mISDNif.h>
#include <linux/kthread.h>
#include <linux/sched.h>
+#include <linux/sched/cputime.h>
#include <linux/signal.h>
#include "core.h"
diff --git a/drivers/s390/cio/cio.c b/drivers/s390/cio/cio.c
index de6fccc13124..1b350665c823 100644
--- a/drivers/s390/cio/cio.c
+++ b/drivers/s390/cio/cio.c
@@ -29,7 +29,7 @@
#include <asm/chpid.h>
#include <asm/airq.h>
#include <asm/isc.h>
-#include <linux/cputime.h>
+#include <linux/sched/cputime.h>
#include <asm/fcx.h>
#include <asm/nmi.h>
#include <asm/crw.h>
diff --git a/fs/binfmt_elf.c b/fs/binfmt_elf.c
index 06a17e4ee221..8458081383ef 100644
--- a/fs/binfmt_elf.c
+++ b/fs/binfmt_elf.c
@@ -37,6 +37,7 @@
#include <linux/sched.h>
#include <linux/sched/coredump.h>
#include <linux/sched/task_stack.h>
+#include <linux/sched/cputime.h>
#include <linux/cred.h>
#include <linux/dax.h>
#include <linux/uaccess.h>
diff --git a/fs/binfmt_elf_fdpic.c b/fs/binfmt_elf_fdpic.c
index 6103a8149ccd..cf93a4fad012 100644
--- a/fs/binfmt_elf_fdpic.c
+++ b/fs/binfmt_elf_fdpic.c
@@ -17,6 +17,7 @@
#include <linux/sched.h>
#include <linux/sched/coredump.h>
#include <linux/sched/task_stack.h>
+#include <linux/sched/cputime.h>
#include <linux/mm.h>
#include <linux/mman.h>
#include <linux/errno.h>
diff --git a/fs/proc/array.c b/fs/proc/array.c
index f3169b58af38..88c355574aa0 100644
--- a/fs/proc/array.c
+++ b/fs/proc/array.c
@@ -63,6 +63,7 @@
#include <linux/sched/mm.h>
#include <linux/sched/numa_balancing.h>
#include <linux/sched/task.h>
+#include <linux/sched/cputime.h>
#include <linux/proc_fs.h>
#include <linux/ioport.h>
#include <linux/uaccess.h>
diff --git a/fs/proc/stat.c b/fs/proc/stat.c
index b95556e036bb..bd4e55f4aa20 100644
--- a/fs/proc/stat.c
+++ b/fs/proc/stat.c
@@ -10,7 +10,7 @@
#include <linux/slab.h>
#include <linux/time.h>
#include <linux/irqnr.h>
-#include <linux/cputime.h>
+#include <linux/sched/cputime.h>
#include <linux/tick.h>
#ifndef arch_irq_stat_cpu
diff --git a/include/linux/cputime.h b/include/linux/cputime.h
deleted file mode 100644
index a691dc4ddc13..000000000000
--- a/include/linux/cputime.h
+++ /dev/null
@@ -1,13 +0,0 @@
-#ifndef __LINUX_CPUTIME_H
-#define __LINUX_CPUTIME_H
-
-#ifdef CONFIG_VIRT_CPU_ACCOUNTING_NATIVE
-#include <asm/cputime.h>
-
-#ifndef cputime_to_nsecs
-# define cputime_to_nsecs(__ct) \
- (cputime_to_usecs(__ct) * NSEC_PER_USEC)
-#endif
-
-#endif /* CONFIG_VIRT_CPU_ACCOUNTING_NATIVE */
-#endif /* __LINUX_CPUTIME_H */
diff --git a/include/linux/sched.h b/include/linux/sched.h
index bccdc3fecded..4d2ab113a02e 100644
--- a/include/linux/sched.h
+++ b/include/linux/sched.h
@@ -209,14 +209,6 @@ struct prev_cputime {
#endif
};
-static inline void prev_cputime_init(struct prev_cputime *prev)
-{
-#ifndef CONFIG_VIRT_CPU_ACCOUNTING_NATIVE
- prev->utime = prev->stime = 0;
- raw_spin_lock_init(&prev->lock);
-#endif
-}
-
/**
* struct task_cputime - collected CPU time counts
* @utime: time spent in user mode, in nanoseconds
@@ -238,40 +230,6 @@ struct task_cputime {
#define prof_exp stime
#define sched_exp sum_exec_runtime
-/*
- * This is the atomic variant of task_cputime, which can be used for
- * storing and updating task_cputime statistics without locking.
- */
-struct task_cputime_atomic {
- atomic64_t utime;
- atomic64_t stime;
- atomic64_t sum_exec_runtime;
-};
-
-#define INIT_CPUTIME_ATOMIC \
- (struct task_cputime_atomic) { \
- .utime = ATOMIC64_INIT(0), \
- .stime = ATOMIC64_INIT(0), \
- .sum_exec_runtime = ATOMIC64_INIT(0), \
- }
-
-/**
- * struct thread_group_cputimer - thread group interval timer counts
- * @cputime_atomic: atomic thread group interval timers.
- * @running: true when there are timers running and
- * @cputime_atomic receives updates.
- * @checking_timer: true when a thread in the group is in the
- * process of checking for thread group timers.
- *
- * This structure contains the version of task_cputime, above, that is
- * used for thread group CPU timer calculations.
- */
-struct thread_group_cputimer {
- struct task_cputime_atomic cputime_atomic;
- bool running;
- bool checking_timer;
-};
-
#ifdef CONFIG_SCHED_INFO
struct sched_info {
/* cumulative counters */
@@ -1224,44 +1182,6 @@ static inline void put_task_struct(struct task_struct *t)
struct task_struct *task_rcu_dereference(struct task_struct **ptask);
struct task_struct *try_get_task_struct(struct task_struct **ptask);
-#ifdef CONFIG_VIRT_CPU_ACCOUNTING_GEN
-extern void task_cputime(struct task_struct *t,
- u64 *utime, u64 *stime);
-extern u64 task_gtime(struct task_struct *t);
-#else
-static inline void task_cputime(struct task_struct *t,
- u64 *utime, u64 *stime)
-{
- *utime = t->utime;
- *stime = t->stime;
-}
-
-static inline u64 task_gtime(struct task_struct *t)
-{
- return t->gtime;
-}
-#endif
-
-#ifdef CONFIG_ARCH_HAS_SCALED_CPUTIME
-static inline void task_cputime_scaled(struct task_struct *t,
- u64 *utimescaled,
- u64 *stimescaled)
-{
- *utimescaled = t->utimescaled;
- *stimescaled = t->stimescaled;
-}
-#else
-static inline void task_cputime_scaled(struct task_struct *t,
- u64 *utimescaled,
- u64 *stimescaled)
-{
- task_cputime(t, utimescaled, stimescaled);
-}
-#endif
-
-extern void task_cputime_adjusted(struct task_struct *p, u64 *ut, u64 *st);
-extern void thread_group_cputime_adjusted(struct task_struct *p, u64 *ut, u64 *st);
-
/*
* Per process flags
*/
@@ -1385,9 +1305,6 @@ static inline int set_cpus_allowed_ptr(struct task_struct *p,
#define cpu_relax_yield() cpu_relax()
#endif
-extern unsigned long long
-task_sched_runtime(struct task_struct *task);
-
/* sched_exec is called by processes performing an exec */
#ifdef CONFIG_SMP
extern void sched_exec(void);
@@ -1618,12 +1535,6 @@ static __always_inline bool need_resched(void)
}
/*
- * Thread group CPU time accounting.
- */
-void thread_group_cputime(struct task_struct *tsk, struct task_cputime *times);
-void thread_group_cputimer(struct task_struct *tsk, struct task_cputime *times);
-
-/*
* Wrappers for p->thread_info->cpu access. No-op on UP.
*/
#ifdef CONFIG_SMP
diff --git a/include/linux/sched/cputime.h b/include/linux/sched/cputime.h
new file mode 100644
index 000000000000..4c5b9735c1ae
--- /dev/null
+++ b/include/linux/sched/cputime.h
@@ -0,0 +1,187 @@
+#ifndef _LINUX_SCHED_CPUTIME_H
+#define _LINUX_SCHED_CPUTIME_H
+
+#include <linux/sched/signal.h>
+
+/*
+ * cputime accounting APIs:
+ */
+
+#ifdef CONFIG_VIRT_CPU_ACCOUNTING_NATIVE
+#include <asm/cputime.h>
+
+#ifndef cputime_to_nsecs
+# define cputime_to_nsecs(__ct) \
+ (cputime_to_usecs(__ct) * NSEC_PER_USEC)
+#endif
+#endif /* CONFIG_VIRT_CPU_ACCOUNTING_NATIVE */
+
+#ifdef CONFIG_VIRT_CPU_ACCOUNTING_GEN
+extern void task_cputime(struct task_struct *t,
+ u64 *utime, u64 *stime);
+extern u64 task_gtime(struct task_struct *t);
+#else
+static inline void task_cputime(struct task_struct *t,
+ u64 *utime, u64 *stime)
+{
+ *utime = t->utime;
+ *stime = t->stime;
+}
+
+static inline u64 task_gtime(struct task_struct *t)
+{
+ return t->gtime;
+}
+#endif
+
+#ifdef CONFIG_ARCH_HAS_SCALED_CPUTIME
+static inline void task_cputime_scaled(struct task_struct *t,
+ u64 *utimescaled,
+ u64 *stimescaled)
+{
+ *utimescaled = t->utimescaled;
+ *stimescaled = t->stimescaled;
+}
+#else
+static inline void task_cputime_scaled(struct task_struct *t,
+ u64 *utimescaled,
+ u64 *stimescaled)
+{
+ task_cputime(t, utimescaled, stimescaled);
+}
+#endif
+
+extern void task_cputime_adjusted(struct task_struct *p, u64 *ut, u64 *st);
+extern void thread_group_cputime_adjusted(struct task_struct *p, u64 *ut, u64 *st);
+
+
+/*
+ * Thread group CPU time accounting.
+ */
+void thread_group_cputime(struct task_struct *tsk, struct task_cputime *times);
+void thread_group_cputimer(struct task_struct *tsk, struct task_cputime *times);
+
+
+/*
+ * The following are functions that support scheduler-internal time accounting.
+ * These functions are generally called at the timer tick. None of this depends
+ * on CONFIG_SCHEDSTATS.
+ */
+
+/**
+ * get_running_cputimer - return &tsk->signal->cputimer if cputimer is running
+ *
+ * @tsk: Pointer to target task.
+ */
+#ifdef CONFIG_POSIX_TIMERS
+static inline
+struct thread_group_cputimer *get_running_cputimer(struct task_struct *tsk)
+{
+ struct thread_group_cputimer *cputimer = &tsk->signal->cputimer;
+
+ /* Check if cputimer isn't running. This is accessed without locking. */
+ if (!READ_ONCE(cputimer->running))
+ return NULL;
+
+ /*
+ * After we flush the task's sum_exec_runtime to sig->sum_sched_runtime
+ * in __exit_signal(), we won't account to the signal struct further
+ * cputime consumed by that task, even though the task can still be
+ * ticking after __exit_signal().
+ *
+ * In order to keep a consistent behaviour between thread group cputime
+ * and thread group cputimer accounting, lets also ignore the cputime
+ * elapsing after __exit_signal() in any thread group timer running.
+ *
+ * This makes sure that POSIX CPU clocks and timers are synchronized, so
+ * that a POSIX CPU timer won't expire while the corresponding POSIX CPU
+ * clock delta is behind the expiring timer value.
+ */
+ if (unlikely(!tsk->sighand))
+ return NULL;
+
+ return cputimer;
+}
+#else
+static inline
+struct thread_group_cputimer *get_running_cputimer(struct task_struct *tsk)
+{
+ return NULL;
+}
+#endif
+
+/**
+ * account_group_user_time - Maintain utime for a thread group.
+ *
+ * @tsk: Pointer to task structure.
+ * @cputime: Time value by which to increment the utime field of the
+ * thread_group_cputime structure.
+ *
+ * If thread group time is being maintained, get the structure for the
+ * running CPU and update the utime field there.
+ */
+static inline void account_group_user_time(struct task_struct *tsk,
+ u64 cputime)
+{
+ struct thread_group_cputimer *cputimer = get_running_cputimer(tsk);
+
+ if (!cputimer)
+ return;
+
+ atomic64_add(cputime, &cputimer->cputime_atomic.utime);
+}
+
+/**
+ * account_group_system_time - Maintain stime for a thread group.
+ *
+ * @tsk: Pointer to task structure.
+ * @cputime: Time value by which to increment the stime field of the
+ * thread_group_cputime structure.
+ *
+ * If thread group time is being maintained, get the structure for the
+ * running CPU and update the stime field there.
+ */
+static inline void account_group_system_time(struct task_struct *tsk,
+ u64 cputime)
+{
+ struct thread_group_cputimer *cputimer = get_running_cputimer(tsk);
+
+ if (!cputimer)
+ return;
+
+ atomic64_add(cputime, &cputimer->cputime_atomic.stime);
+}
+
+/**
+ * account_group_exec_runtime - Maintain exec runtime for a thread group.
+ *
+ * @tsk: Pointer to task structure.
+ * @ns: Time value by which to increment the sum_exec_runtime field
+ * of the thread_group_cputime structure.
+ *
+ * If thread group time is being maintained, get the structure for the
+ * running CPU and update the sum_exec_runtime field there.
+ */
+static inline void account_group_exec_runtime(struct task_struct *tsk,
+ unsigned long long ns)
+{
+ struct thread_group_cputimer *cputimer = get_running_cputimer(tsk);
+
+ if (!cputimer)
+ return;
+
+ atomic64_add(ns, &cputimer->cputime_atomic.sum_exec_runtime);
+}
+
+static inline void prev_cputime_init(struct prev_cputime *prev)
+{
+#ifndef CONFIG_VIRT_CPU_ACCOUNTING_NATIVE
+ prev->utime = prev->stime = 0;
+ raw_spin_lock_init(&prev->lock);
+#endif
+}
+
+extern unsigned long long
+task_sched_runtime(struct task_struct *task);
+
+#endif /* _LINUX_SCHED_CPUTIME_H */
diff --git a/include/linux/sched/signal.h b/include/linux/sched/signal.h
index 43415522eaa1..133312c4409f 100644
--- a/include/linux/sched/signal.h
+++ b/include/linux/sched/signal.h
@@ -36,6 +36,39 @@ struct cpu_itimer {
};
/*
+ * This is the atomic variant of task_cputime, which can be used for
+ * storing and updating task_cputime statistics without locking.
+ */
+struct task_cputime_atomic {
+ atomic64_t utime;
+ atomic64_t stime;
+ atomic64_t sum_exec_runtime;
+};
+
+#define INIT_CPUTIME_ATOMIC \
+ (struct task_cputime_atomic) { \
+ .utime = ATOMIC64_INIT(0), \
+ .stime = ATOMIC64_INIT(0), \
+ .sum_exec_runtime = ATOMIC64_INIT(0), \
+ }
+/**
+ * struct thread_group_cputimer - thread group interval timer counts
+ * @cputime_atomic: atomic thread group interval timers.
+ * @running: true when there are timers running and
+ * @cputime_atomic receives updates.
+ * @checking_timer: true when a thread in the group is in the
+ * process of checking for thread group timers.
+ *
+ * This structure contains the version of task_cputime, above, that is
+ * used for thread group CPU timer calculations.
+ */
+struct thread_group_cputimer {
+ struct task_cputime_atomic cputime_atomic;
+ bool running;
+ bool checking_timer;
+};
+
+/*
* NOTE! "signal_struct" does not have its own
* locking, because a shared signal_struct always
* implies a shared sighand_struct, so locking
diff --git a/kernel/acct.c b/kernel/acct.c
index ca9cb55b5855..5b1284370367 100644
--- a/kernel/acct.c
+++ b/kernel/acct.c
@@ -56,6 +56,8 @@
#include <linux/syscalls.h>
#include <linux/mount.h>
#include <linux/uaccess.h>
+#include <linux/sched/cputime.h>
+
#include <asm/div64.h>
#include <linux/blkdev.h> /* sector_div */
#include <linux/pid_namespace.h>
diff --git a/kernel/delayacct.c b/kernel/delayacct.c
index c94135fc2698..4a1c33416b6a 100644
--- a/kernel/delayacct.c
+++ b/kernel/delayacct.c
@@ -15,6 +15,7 @@
#include <linux/sched.h>
#include <linux/sched/task.h>
+#include <linux/sched/cputime.h>
#include <linux/slab.h>
#include <linux/taskstats.h>
#include <linux/time.h>
diff --git a/kernel/exit.c b/kernel/exit.c
index 3f4bd6e1cffb..eb8611484f5a 100644
--- a/kernel/exit.c
+++ b/kernel/exit.c
@@ -11,6 +11,7 @@
#include <linux/sched/stat.h>
#include <linux/sched/task.h>
#include <linux/sched/task_stack.h>
+#include <linux/sched/cputime.h>
#include <linux/interrupt.h>
#include <linux/module.h>
#include <linux/capability.h>
diff --git a/kernel/fork.c b/kernel/fork.c
index 22dca155b27b..4a033bb7d660 100644
--- a/kernel/fork.c
+++ b/kernel/fork.c
@@ -20,6 +20,7 @@
#include <linux/sched/stat.h>
#include <linux/sched/task.h>
#include <linux/sched/task_stack.h>
+#include <linux/sched/cputime.h>
#include <linux/rtmutex.h>
#include <linux/init.h>
#include <linux/unistd.h>
diff --git a/kernel/sched/cputime.c b/kernel/sched/cputime.c
index 54031fa681e2..f3778e2b46c8 100644
--- a/kernel/sched/cputime.c
+++ b/kernel/sched/cputime.c
@@ -4,7 +4,7 @@
#include <linux/kernel_stat.h>
#include <linux/static_key.h>
#include <linux/context_tracking.h>
-#include <linux/cputime.h>
+#include <linux/sched/cputime.h>
#include "sched.h"
#ifdef CONFIG_IRQ_TIME_ACCOUNTING
diff --git a/kernel/sched/sched.h b/kernel/sched/sched.h
index b1f1c8443837..76e3af3f39f4 100644
--- a/kernel/sched/sched.h
+++ b/kernel/sched/sched.h
@@ -17,6 +17,7 @@
#include <linux/sched/hotplug.h>
#include <linux/sched/task.h>
#include <linux/sched/task_stack.h>
+#include <linux/sched/cputime.h>
#include <linux/u64_stats_sync.h>
#include <linux/kernel_stat.h>
diff --git a/kernel/sched/stats.h b/kernel/sched/stats.h
index bf0da0aa0a14..d5710651043b 100644
--- a/kernel/sched/stats.h
+++ b/kernel/sched/stats.h
@@ -164,114 +164,3 @@ sched_info_switch(struct rq *rq,
#define sched_info_arrive(rq, next) do { } while (0)
#define sched_info_switch(rq, t, next) do { } while (0)
#endif /* CONFIG_SCHED_INFO */
-
-/*
- * The following are functions that support scheduler-internal time accounting.
- * These functions are generally called at the timer tick. None of this depends
- * on CONFIG_SCHEDSTATS.
- */
-
-/**
- * get_running_cputimer - return &tsk->signal->cputimer if cputimer is running
- *
- * @tsk: Pointer to target task.
- */
-#ifdef CONFIG_POSIX_TIMERS
-static inline
-struct thread_group_cputimer *get_running_cputimer(struct task_struct *tsk)
-{
- struct thread_group_cputimer *cputimer = &tsk->signal->cputimer;
-
- /* Check if cputimer isn't running. This is accessed without locking. */
- if (!READ_ONCE(cputimer->running))
- return NULL;
-
- /*
- * After we flush the task's sum_exec_runtime to sig->sum_sched_runtime
- * in __exit_signal(), we won't account to the signal struct further
- * cputime consumed by that task, even though the task can still be
- * ticking after __exit_signal().
- *
- * In order to keep a consistent behaviour between thread group cputime
- * and thread group cputimer accounting, lets also ignore the cputime
- * elapsing after __exit_signal() in any thread group timer running.
- *
- * This makes sure that POSIX CPU clocks and timers are synchronized, so
- * that a POSIX CPU timer won't expire while the corresponding POSIX CPU
- * clock delta is behind the expiring timer value.
- */
- if (unlikely(!tsk->sighand))
- return NULL;
-
- return cputimer;
-}
-#else
-static inline
-struct thread_group_cputimer *get_running_cputimer(struct task_struct *tsk)
-{
- return NULL;
-}
-#endif
-
-/**
- * account_group_user_time - Maintain utime for a thread group.
- *
- * @tsk: Pointer to task structure.
- * @cputime: Time value by which to increment the utime field of the
- * thread_group_cputime structure.
- *
- * If thread group time is being maintained, get the structure for the
- * running CPU and update the utime field there.
- */
-static inline void account_group_user_time(struct task_struct *tsk,
- u64 cputime)
-{
- struct thread_group_cputimer *cputimer = get_running_cputimer(tsk);
-
- if (!cputimer)
- return;
-
- atomic64_add(cputime, &cputimer->cputime_atomic.utime);
-}
-
-/**
- * account_group_system_time - Maintain stime for a thread group.
- *
- * @tsk: Pointer to task structure.
- * @cputime: Time value by which to increment the stime field of the
- * thread_group_cputime structure.
- *
- * If thread group time is being maintained, get the structure for the
- * running CPU and update the stime field there.
- */
-static inline void account_group_system_time(struct task_struct *tsk,
- u64 cputime)
-{
- struct thread_group_cputimer *cputimer = get_running_cputimer(tsk);
-
- if (!cputimer)
- return;
-
- atomic64_add(cputime, &cputimer->cputime_atomic.stime);
-}
-
-/**
- * account_group_exec_runtime - Maintain exec runtime for a thread group.
- *
- * @tsk: Pointer to task structure.
- * @ns: Time value by which to increment the sum_exec_runtime field
- * of the thread_group_cputime structure.
- *
- * If thread group time is being maintained, get the structure for the
- * running CPU and update the sum_exec_runtime field there.
- */
-static inline void account_group_exec_runtime(struct task_struct *tsk,
- unsigned long long ns)
-{
- struct thread_group_cputimer *cputimer = get_running_cputimer(tsk);
-
- if (!cputimer)
- return;
-
- atomic64_add(ns, &cputimer->cputime_atomic.sum_exec_runtime);
-}
diff --git a/kernel/signal.c b/kernel/signal.c
index 9701d4dc074e..9f1a0ed128f5 100644
--- a/kernel/signal.c
+++ b/kernel/signal.c
@@ -18,6 +18,7 @@
#include <linux/sched/debug.h>
#include <linux/sched/task.h>
#include <linux/sched/task_stack.h>
+#include <linux/sched/cputime.h>
#include <linux/fs.h>
#include <linux/tty.h>
#include <linux/binfmts.h>
diff --git a/kernel/sys.c b/kernel/sys.c
index dbe694c23daf..40742b1a2c67 100644
--- a/kernel/sys.c
+++ b/kernel/sys.c
@@ -55,6 +55,7 @@
#include <linux/sched/mm.h>
#include <linux/sched/coredump.h>
#include <linux/sched/task.h>
+#include <linux/sched/cputime.h>
#include <linux/rcupdate.h>
#include <linux/uidgid.h>
#include <linux/cred.h>
diff --git a/kernel/time/itimer.c b/kernel/time/itimer.c
index f6b961c5e58c..087d6a1279b8 100644
--- a/kernel/time/itimer.c
+++ b/kernel/time/itimer.c
@@ -11,6 +11,7 @@
#include <linux/syscalls.h>
#include <linux/time.h>
#include <linux/sched/signal.h>
+#include <linux/sched/cputime.h>
#include <linux/posix-timers.h>
#include <linux/hrtimer.h>
#include <trace/events/timer.h>
diff --git a/kernel/time/posix-cpu-timers.c b/kernel/time/posix-cpu-timers.c
index a2475a9f57d8..4513ad16a253 100644
--- a/kernel/time/posix-cpu-timers.c
+++ b/kernel/time/posix-cpu-timers.c
@@ -3,6 +3,7 @@
*/
#include <linux/sched/signal.h>
+#include <linux/sched/cputime.h>
#include <linux/posix-timers.h>
#include <linux/errno.h>
#include <linux/math64.h>
diff --git a/kernel/tsacct.c b/kernel/tsacct.c
index d9a03b80b75d..370724b45391 100644
--- a/kernel/tsacct.c
+++ b/kernel/tsacct.c
@@ -19,6 +19,7 @@
#include <linux/kernel.h>
#include <linux/sched/signal.h>
#include <linux/sched/mm.h>
+#include <linux/sched/cputime.h>
#include <linux/tsacct_kern.h>
#include <linux/acct.h>
#include <linux/jiffies.h>
--
2.7.4
^ permalink raw reply related [flat|nested] 119+ messages in thread
* [PATCH 69/89] sched/headers: Move sched_info_on() and force_schedstat_enabled() from <linux/sched.h> to <linux/sched/stat.h>
2017-02-06 13:28 [PATCH 00/89] Major reorganization of <linux/sched.h> Ingo Molnar
` (67 preceding siblings ...)
2017-02-06 13:29 ` [PATCH 68/89] sched/headers: Split cputime functionality out of <linux/sched.h>, into <linux/sched/cputime.h> Ingo Molnar
@ 2017-02-06 13:29 ` Ingo Molnar
2017-02-06 13:29 ` [PATCH 70/89] sched/core: Remove unused prefetch_stack() Ingo Molnar
` (21 subsequent siblings)
90 siblings, 0 replies; 119+ messages in thread
From: Ingo Molnar @ 2017-02-06 13:29 UTC (permalink / raw)
To: linux-kernel
Cc: Andrew Morton, Linus Torvalds, Mike Galbraith, Oleg Nesterov,
Peter Zijlstra, Thomas Gleixner
These APIs are not core scheduler but statistics related.
Update usage sites.
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
arch/x86/kvm/cpuid.c | 2 ++
arch/x86/kvm/x86.c | 2 ++
fs/proc/base.c | 1 +
include/linux/sched.h | 16 ----------------
include/linux/sched/stat.h | 16 ++++++++++++++++
kernel/latencytop.c | 1 +
kernel/profile.c | 2 ++
7 files changed, 24 insertions(+), 16 deletions(-)
diff --git a/arch/x86/kvm/cpuid.c b/arch/x86/kvm/cpuid.c
index e85f6bd7b9d5..1639de8eb969 100644
--- a/arch/x86/kvm/cpuid.c
+++ b/arch/x86/kvm/cpuid.c
@@ -16,6 +16,8 @@
#include <linux/export.h>
#include <linux/vmalloc.h>
#include <linux/uaccess.h>
+#include <linux/sched/stat.h>
+
#include <asm/processor.h>
#include <asm/user.h>
#include <asm/fpu/xstate.h>
diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c
index d153be8929a6..bd0ccc65a9ea 100644
--- a/arch/x86/kvm/x86.c
+++ b/arch/x86/kvm/x86.c
@@ -54,6 +54,8 @@
#include <linux/pvclock_gtod.h>
#include <linux/kvm_irqfd.h>
#include <linux/irqbypass.h>
+#include <linux/sched/stat.h>
+
#include <trace/events/kvm.h>
#include <asm/debugreg.h>
diff --git a/fs/proc/base.c b/fs/proc/base.c
index cc39b88610a9..82661e386f73 100644
--- a/fs/proc/base.c
+++ b/fs/proc/base.c
@@ -89,6 +89,7 @@
#include <linux/sched/mm.h>
#include <linux/sched/coredump.h>
#include <linux/sched/debug.h>
+#include <linux/sched/stat.h>
#include <linux/flex_array.h>
#include <linux/posix-timers.h>
#ifdef CONFIG_HARDWALL
diff --git a/include/linux/sched.h b/include/linux/sched.h
index 4d2ab113a02e..d93db434cbe2 100644
--- a/include/linux/sched.h
+++ b/include/linux/sched.h
@@ -242,22 +242,6 @@ struct sched_info {
};
#endif /* CONFIG_SCHED_INFO */
-static inline int sched_info_on(void)
-{
-#ifdef CONFIG_SCHEDSTATS
- return 1;
-#elif defined(CONFIG_TASK_DELAY_ACCT)
- extern int delayacct_on;
- return delayacct_on;
-#else
- return 0;
-#endif
-}
-
-#ifdef CONFIG_SCHEDSTATS
-void force_schedstat_enabled(void);
-#endif
-
/*
* Integer metrics need fixed point arithmetic, e.g., sched/fair
* has a few: load, load_avg, util_avg, freq, and capacity.
diff --git a/include/linux/sched/stat.h b/include/linux/sched/stat.h
index 851bc8639620..141b74c53fad 100644
--- a/include/linux/sched/stat.h
+++ b/include/linux/sched/stat.h
@@ -21,4 +21,20 @@ extern unsigned long nr_iowait(void);
extern unsigned long nr_iowait_cpu(int cpu);
extern void get_iowait_load(unsigned long *nr_waiters, unsigned long *load);
+static inline int sched_info_on(void)
+{
+#ifdef CONFIG_SCHEDSTATS
+ return 1;
+#elif defined(CONFIG_TASK_DELAY_ACCT)
+ extern int delayacct_on;
+ return delayacct_on;
+#else
+ return 0;
+#endif
+}
+
+#ifdef CONFIG_SCHEDSTATS
+void force_schedstat_enabled(void);
+#endif
+
#endif /* _LINUX_SCHED_STAT_H */
diff --git a/kernel/latencytop.c b/kernel/latencytop.c
index 545839b838d6..96b4179cee6a 100644
--- a/kernel/latencytop.c
+++ b/kernel/latencytop.c
@@ -56,6 +56,7 @@
#include <linux/export.h>
#include <linux/sched.h>
#include <linux/sched/debug.h>
+#include <linux/sched/stat.h>
#include <linux/list.h>
#include <linux/stacktrace.h>
diff --git a/kernel/profile.c b/kernel/profile.c
index f67ce0aa6bc4..9aa2a4445b0d 100644
--- a/kernel/profile.c
+++ b/kernel/profile.c
@@ -25,6 +25,8 @@
#include <linux/mutex.h>
#include <linux/slab.h>
#include <linux/vmalloc.h>
+#include <linux/sched/stat.h>
+
#include <asm/sections.h>
#include <asm/irq_regs.h>
#include <asm/ptrace.h>
--
2.7.4
^ permalink raw reply related [flat|nested] 119+ messages in thread
* [PATCH 70/89] sched/core: Remove unused prefetch_stack()
2017-02-06 13:28 [PATCH 00/89] Major reorganization of <linux/sched.h> Ingo Molnar
` (68 preceding siblings ...)
2017-02-06 13:29 ` [PATCH 69/89] sched/headers: Move sched_info_on() and force_schedstat_enabled() from <linux/sched.h> to <linux/sched/stat.h> Ingo Molnar
@ 2017-02-06 13:29 ` Ingo Molnar
2017-02-06 13:29 ` [PATCH 71/89] sched/headers, vfs/execve: Move the do_execve*() prototypes from <linux/sched.h> to <linux/binfmts.h> Ingo Molnar
` (20 subsequent siblings)
90 siblings, 0 replies; 119+ messages in thread
From: Ingo Molnar @ 2017-02-06 13:29 UTC (permalink / raw)
To: linux-kernel
Cc: Andrew Morton, Linus Torvalds, Mike Galbraith, Oleg Nesterov,
Peter Zijlstra, Thomas Gleixner
prefetch_stack() is defined by IA64, but not actually used anywhere anymore.
Remove it.
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
arch/ia64/include/asm/processor.h | 2 --
arch/ia64/kernel/entry.S | 23 -----------------------
include/linux/sched.h | 6 ------
3 files changed, 31 deletions(-)
diff --git a/arch/ia64/include/asm/processor.h b/arch/ia64/include/asm/processor.h
index 03911a336406..26a63d69c599 100644
--- a/arch/ia64/include/asm/processor.h
+++ b/arch/ia64/include/asm/processor.h
@@ -19,8 +19,6 @@
#include <asm/ptrace.h>
#include <asm/ustack.h>
-#define ARCH_HAS_PREFETCH_SWITCH_STACK
-
#define IA64_NUM_PHYS_STACK_REG 96
#define IA64_NUM_DBG_REGS 8
diff --git a/arch/ia64/kernel/entry.S b/arch/ia64/kernel/entry.S
index 6f27a663177c..e7a716b09350 100644
--- a/arch/ia64/kernel/entry.S
+++ b/arch/ia64/kernel/entry.S
@@ -455,29 +455,6 @@ GLOBAL_ENTRY(load_switch_stack)
br.cond.sptk.many b7
END(load_switch_stack)
-GLOBAL_ENTRY(prefetch_stack)
- add r14 = -IA64_SWITCH_STACK_SIZE, sp
- add r15 = IA64_TASK_THREAD_KSP_OFFSET, in0
- ;;
- ld8 r16 = [r15] // load next's stack pointer
- lfetch.fault.excl [r14], 128
- ;;
- lfetch.fault.excl [r14], 128
- lfetch.fault [r16], 128
- ;;
- lfetch.fault.excl [r14], 128
- lfetch.fault [r16], 128
- ;;
- lfetch.fault.excl [r14], 128
- lfetch.fault [r16], 128
- ;;
- lfetch.fault.excl [r14], 128
- lfetch.fault [r16], 128
- ;;
- lfetch.fault [r16], 128
- br.ret.sptk.many rp
-END(prefetch_stack)
-
/*
* Invoke a system call, but do some tracing before and after the call.
* We MUST preserve the current register frame throughout this routine
diff --git a/include/linux/sched.h b/include/linux/sched.h
index d93db434cbe2..f0e12a58b8cb 100644
--- a/include/linux/sched.h
+++ b/include/linux/sched.h
@@ -252,12 +252,6 @@ struct sched_info {
# define SCHED_FIXEDPOINT_SHIFT 10
# define SCHED_FIXEDPOINT_SCALE (1L << SCHED_FIXEDPOINT_SHIFT)
-#ifdef ARCH_HAS_PREFETCH_SWITCH_STACK
-extern void prefetch_stack(struct task_struct *t);
-#else
-static inline void prefetch_stack(struct task_struct *t) { }
-#endif
-
struct load_weight {
unsigned long weight;
u32 inv_weight;
--
2.7.4
^ permalink raw reply related [flat|nested] 119+ messages in thread
* [PATCH 71/89] sched/headers, vfs/execve: Move the do_execve*() prototypes from <linux/sched.h> to <linux/binfmts.h>
2017-02-06 13:28 [PATCH 00/89] Major reorganization of <linux/sched.h> Ingo Molnar
` (69 preceding siblings ...)
2017-02-06 13:29 ` [PATCH 70/89] sched/core: Remove unused prefetch_stack() Ingo Molnar
@ 2017-02-06 13:29 ` Ingo Molnar
2017-02-06 13:29 ` [PATCH 72/89] sched/headers: Move kstack_end() from <linux/sched.h> to <linux/sched/task_stack.h> Ingo Molnar
` (19 subsequent siblings)
90 siblings, 0 replies; 119+ messages in thread
From: Ingo Molnar @ 2017-02-06 13:29 UTC (permalink / raw)
To: linux-kernel
Cc: Andrew Morton, Linus Torvalds, Mike Galbraith, Oleg Nesterov,
Peter Zijlstra, Thomas Gleixner
... and update the usage sites where necessary.
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
include/linux/binfmts.h | 10 ++++++++++
include/linux/sched.h | 8 --------
init/main.c | 1 +
kernel/kmod.c | 1 +
4 files changed, 12 insertions(+), 8 deletions(-)
diff --git a/include/linux/binfmts.h b/include/linux/binfmts.h
index 1303b570b18c..05488da3aee9 100644
--- a/include/linux/binfmts.h
+++ b/include/linux/binfmts.h
@@ -6,6 +6,8 @@
#include <asm/exec.h>
#include <uapi/linux/binfmts.h>
+struct filename;
+
#define CORENAME_MAX_SIZE 128
/*
@@ -123,4 +125,12 @@ extern void install_exec_creds(struct linux_binprm *bprm);
extern void set_binfmt(struct linux_binfmt *new);
extern ssize_t read_code(struct file *, unsigned long, loff_t, size_t);
+extern int do_execve(struct filename *,
+ const char __user * const __user *,
+ const char __user * const __user *);
+extern int do_execveat(int, struct filename *,
+ const char __user * const __user *,
+ const char __user * const __user *,
+ int);
+
#endif /* _LINUX_BINFMTS_H */
diff --git a/include/linux/sched.h b/include/linux/sched.h
index f0e12a58b8cb..7dcda4726b30 100644
--- a/include/linux/sched.h
+++ b/include/linux/sched.h
@@ -1382,14 +1382,6 @@ extern void exit_files(struct task_struct *);
extern void exit_itimers(struct signal_struct *);
-extern int do_execve(struct filename *,
- const char __user * const __user *,
- const char __user * const __user *);
-extern int do_execveat(int, struct filename *,
- const char __user * const __user *,
- const char __user * const __user *,
- int);
-
extern void __set_task_comm(struct task_struct *tsk, const char *from, bool exec);
static inline void set_task_comm(struct task_struct *tsk, const char *from)
{
diff --git a/init/main.c b/init/main.c
index fcb59cd7efd2..cd2065b115f6 100644
--- a/init/main.c
+++ b/init/main.c
@@ -14,6 +14,7 @@
#include <linux/types.h>
#include <linux/module.h>
#include <linux/proc_fs.h>
+#include <linux/binfmts.h>
#include <linux/kernel.h>
#include <linux/syscalls.h>
#include <linux/stackprotector.h>
diff --git a/kernel/kmod.c b/kernel/kmod.c
index 3cf3750e9d39..961f78617364 100644
--- a/kernel/kmod.c
+++ b/kernel/kmod.c
@@ -21,6 +21,7 @@
#include <linux/module.h>
#include <linux/sched.h>
#include <linux/sched/task.h>
+#include <linux/binfmts.h>
#include <linux/syscalls.h>
#include <linux/unistd.h>
#include <linux/kmod.h>
--
2.7.4
^ permalink raw reply related [flat|nested] 119+ messages in thread
* [PATCH 72/89] sched/headers: Move kstack_end() from <linux/sched.h> to <linux/sched/task_stack.h>
2017-02-06 13:28 [PATCH 00/89] Major reorganization of <linux/sched.h> Ingo Molnar
` (70 preceding siblings ...)
2017-02-06 13:29 ` [PATCH 71/89] sched/headers, vfs/execve: Move the do_execve*() prototypes from <linux/sched.h> to <linux/binfmts.h> Ingo Molnar
@ 2017-02-06 13:29 ` Ingo Molnar
2017-02-06 13:29 ` [PATCH 73/89] sched/headers: Move exit_files() and exit_itimers() from <linux/sched.h> to <linux/sched/task.h> Ingo Molnar
` (18 subsequent siblings)
90 siblings, 0 replies; 119+ messages in thread
From: Ingo Molnar @ 2017-02-06 13:29 UTC (permalink / raw)
To: linux-kernel
Cc: Andrew Morton, Linus Torvalds, Mike Galbraith, Oleg Nesterov,
Peter Zijlstra, Thomas Gleixner
... and update usage sites, where necessary.
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
arch/m32r/kernel/traps.c | 2 ++
arch/metag/kernel/stacktrace.c | 1 +
arch/openrisc/kernel/traps.c | 1 +
arch/um/kernel/sysrq.c | 1 +
arch/xtensa/kernel/traps.c | 1 +
include/linux/sched.h | 10 ----------
include/linux/sched/task_stack.h | 10 ++++++++++
mm/slab.c | 1 +
8 files changed, 17 insertions(+), 10 deletions(-)
diff --git a/arch/m32r/kernel/traps.c b/arch/m32r/kernel/traps.c
index 7c05bb393597..832bb2bb29bd 100644
--- a/arch/m32r/kernel/traps.c
+++ b/arch/m32r/kernel/traps.c
@@ -15,7 +15,9 @@
#include <linux/stddef.h>
#include <linux/ptrace.h>
#include <linux/sched/debug.h>
+#include <linux/sched/task_stack.h>
#include <linux/mm.h>
+
#include <asm/page.h>
#include <asm/processor.h>
diff --git a/arch/metag/kernel/stacktrace.c b/arch/metag/kernel/stacktrace.c
index 4f806d66a58c..91ffc4b75c33 100644
--- a/arch/metag/kernel/stacktrace.c
+++ b/arch/metag/kernel/stacktrace.c
@@ -1,6 +1,7 @@
#include <linux/export.h>
#include <linux/sched.h>
#include <linux/sched/debug.h>
+#include <linux/sched/task_stack.h>
#include <linux/stacktrace.h>
#include <asm/stacktrace.h>
diff --git a/arch/openrisc/kernel/traps.c b/arch/openrisc/kernel/traps.c
index d220d385dd5d..faba2e7b8a05 100644
--- a/arch/openrisc/kernel/traps.c
+++ b/arch/openrisc/kernel/traps.c
@@ -23,6 +23,7 @@
#include <linux/init.h>
#include <linux/sched.h>
#include <linux/sched/debug.h>
+#include <linux/sched/task_stack.h>
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/kmod.h>
diff --git a/arch/um/kernel/sysrq.c b/arch/um/kernel/sysrq.c
index 34ae555c3e70..a76295f7ede9 100644
--- a/arch/um/kernel/sysrq.c
+++ b/arch/um/kernel/sysrq.c
@@ -12,6 +12,7 @@
#include <linux/module.h>
#include <linux/sched.h>
#include <linux/sched/debug.h>
+#include <linux/sched/task_stack.h>
#include <asm/sysrq.h>
#include <asm/stacktrace.h>
diff --git a/arch/xtensa/kernel/traps.c b/arch/xtensa/kernel/traps.c
index d8bb2e62393e..c82c43bff296 100644
--- a/arch/xtensa/kernel/traps.c
+++ b/arch/xtensa/kernel/traps.c
@@ -26,6 +26,7 @@
#include <linux/kernel.h>
#include <linux/sched/signal.h>
#include <linux/sched/debug.h>
+#include <linux/sched/task_stack.h>
#include <linux/init.h>
#include <linux/module.h>
#include <linux/stringify.h>
diff --git a/include/linux/sched.h b/include/linux/sched.h
index 7dcda4726b30..cad9d218d942 100644
--- a/include/linux/sched.h
+++ b/include/linux/sched.h
@@ -1344,16 +1344,6 @@ static inline struct thread_info *task_thread_info(struct task_struct *task)
# define task_thread_info(task) ((struct thread_info *)(task)->stack)
#endif
-#ifndef __HAVE_ARCH_KSTACK_END
-static inline int kstack_end(void *addr)
-{
- /* Reliable end of stack detection:
- * Some APM bios versions misalign the stack
- */
- return !(((unsigned long)addr+sizeof(void*)-1) & (THREAD_SIZE-sizeof(void*)));
-}
-#endif
-
/*
* find a task by one of its numerical ids
*
diff --git a/include/linux/sched/task_stack.h b/include/linux/sched/task_stack.h
index 1f4858a1e201..d4637d26c067 100644
--- a/include/linux/sched/task_stack.h
+++ b/include/linux/sched/task_stack.h
@@ -107,4 +107,14 @@ static inline unsigned long stack_not_used(struct task_struct *p)
#endif
extern void set_task_stack_end_magic(struct task_struct *tsk);
+#ifndef __HAVE_ARCH_KSTACK_END
+static inline int kstack_end(void *addr)
+{
+ /* Reliable end of stack detection:
+ * Some APM bios versions misalign the stack
+ */
+ return !(((unsigned long)addr+sizeof(void*)-1) & (THREAD_SIZE-sizeof(void*)));
+}
+#endif
+
#endif /* _LINUX_SCHED_TASK_STACK_H */
diff --git a/mm/slab.c b/mm/slab.c
index 4f2ec6bb46eb..535e1787cab8 100644
--- a/mm/slab.c
+++ b/mm/slab.c
@@ -116,6 +116,7 @@
#include <linux/kmemcheck.h>
#include <linux/memory.h>
#include <linux/prefetch.h>
+#include <linux/sched/task_stack.h>
#include <net/sock.h>
--
2.7.4
^ permalink raw reply related [flat|nested] 119+ messages in thread
* [PATCH 73/89] sched/headers: Move exit_files() and exit_itimers() from <linux/sched.h> to <linux/sched/task.h>
2017-02-06 13:28 [PATCH 00/89] Major reorganization of <linux/sched.h> Ingo Molnar
` (71 preceding siblings ...)
2017-02-06 13:29 ` [PATCH 72/89] sched/headers: Move kstack_end() from <linux/sched.h> to <linux/sched/task_stack.h> Ingo Molnar
@ 2017-02-06 13:29 ` Ingo Molnar
2017-02-06 13:29 ` [PATCH 74/89] sched/headers: Move _init() prototypes from <linux/sched.h> to <linux/sched/init.h> Ingo Molnar
` (17 subsequent siblings)
90 siblings, 0 replies; 119+ messages in thread
From: Ingo Molnar @ 2017-02-06 13:29 UTC (permalink / raw)
To: linux-kernel
Cc: Andrew Morton, Linus Torvalds, Mike Galbraith, Oleg Nesterov,
Peter Zijlstra, Thomas Gleixner
These two functions are task management related, not core scheduler APIs.
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
include/linux/sched.h | 4 ----
include/linux/sched/task.h | 3 +++
kernel/time/posix-timers.c | 1 +
3 files changed, 4 insertions(+), 4 deletions(-)
diff --git a/include/linux/sched.h b/include/linux/sched.h
index cad9d218d942..caff145aad2e 100644
--- a/include/linux/sched.h
+++ b/include/linux/sched.h
@@ -1368,10 +1368,6 @@ extern void wake_up_new_task(struct task_struct *tsk);
static inline void kick_process(struct task_struct *tsk) { }
#endif
-extern void exit_files(struct task_struct *);
-
-extern void exit_itimers(struct signal_struct *);
-
extern void __set_task_comm(struct task_struct *tsk, const char *from, bool exec);
static inline void set_task_comm(struct task_struct *tsk, const char *from)
{
diff --git a/include/linux/sched/task.h b/include/linux/sched/task.h
index 26bc507eb07e..81cde345917d 100644
--- a/include/linux/sched/task.h
+++ b/include/linux/sched/task.h
@@ -67,6 +67,9 @@ static inline void exit_thread(struct task_struct *tsk)
#endif
extern void do_group_exit(int);
+extern void exit_files(struct task_struct *);
+extern void exit_itimers(struct signal_struct *);
+
extern long _do_fork(unsigned long, unsigned long, unsigned long, int __user *, int __user *, unsigned long);
extern long do_fork(unsigned long, unsigned long, unsigned long, int __user *, int __user *);
struct task_struct *fork_idle(int);
diff --git a/kernel/time/posix-timers.c b/kernel/time/posix-timers.c
index 1e6623d76750..50a6a47020de 100644
--- a/kernel/time/posix-timers.c
+++ b/kernel/time/posix-timers.c
@@ -35,6 +35,7 @@
#include <linux/slab.h>
#include <linux/time.h>
#include <linux/mutex.h>
+#include <linux/sched/task.h>
#include <linux/uaccess.h>
#include <linux/list.h>
--
2.7.4
^ permalink raw reply related [flat|nested] 119+ messages in thread
* [PATCH 74/89] sched/headers: Move _init() prototypes from <linux/sched.h> to <linux/sched/init.h>
2017-02-06 13:28 [PATCH 00/89] Major reorganization of <linux/sched.h> Ingo Molnar
` (72 preceding siblings ...)
2017-02-06 13:29 ` [PATCH 73/89] sched/headers: Move exit_files() and exit_itimers() from <linux/sched.h> to <linux/sched/task.h> Ingo Molnar
@ 2017-02-06 13:29 ` Ingo Molnar
2017-02-06 13:29 ` [PATCH 75/89] sched/headers, timekeeping: Consolidate the timer tick function prototypes Ingo Molnar
` (16 subsequent siblings)
90 siblings, 0 replies; 119+ messages in thread
From: Ingo Molnar @ 2017-02-06 13:29 UTC (permalink / raw)
To: linux-kernel
Cc: Andrew Morton, Linus Torvalds, Mike Galbraith, Oleg Nesterov,
Peter Zijlstra, Thomas Gleixner
trap_init() and cpu_init() belong into <linux/cpu.h>, sched_init*() into <linux/sched/init.h>.
... and update usage sites where necessary.
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
arch/ia64/kernel/setup.c | 1 +
arch/m32r/kernel/traps.c | 1 +
arch/s390/kernel/setup.c | 1 +
include/linux/cpu.h | 2 ++
include/linux/sched.h | 5 -----
include/linux/sched/init.h | 11 +++++++++++
init/main.c | 1 +
kernel/sched/sched.h | 1 +
8 files changed, 18 insertions(+), 5 deletions(-)
diff --git a/arch/ia64/kernel/setup.c b/arch/ia64/kernel/setup.c
index 35a9416705d8..b6c34fb052d3 100644
--- a/arch/ia64/kernel/setup.c
+++ b/arch/ia64/kernel/setup.c
@@ -29,6 +29,7 @@
#include <linux/bootmem.h>
#include <linux/console.h>
#include <linux/delay.h>
+#include <linux/cpu.h>
#include <linux/kernel.h>
#include <linux/reboot.h>
#include <linux/sched.h>
diff --git a/arch/m32r/kernel/traps.c b/arch/m32r/kernel/traps.c
index 832bb2bb29bd..647dd94a0c39 100644
--- a/arch/m32r/kernel/traps.c
+++ b/arch/m32r/kernel/traps.c
@@ -17,6 +17,7 @@
#include <linux/sched/debug.h>
#include <linux/sched/task_stack.h>
#include <linux/mm.h>
+#include <linux/cpu.h>
#include <asm/page.h>
#include <asm/processor.h>
diff --git a/arch/s390/kernel/setup.c b/arch/s390/kernel/setup.c
index aab55b8c2143..75cbd2b14aca 100644
--- a/arch/s390/kernel/setup.c
+++ b/arch/s390/kernel/setup.c
@@ -19,6 +19,7 @@
#include <linux/export.h>
#include <linux/sched.h>
#include <linux/sched/task.h>
+#include <linux/cpu.h>
#include <linux/kernel.h>
#include <linux/memblock.h>
#include <linux/mm.h>
diff --git a/include/linux/cpu.h b/include/linux/cpu.h
index 21f9c74496e7..f92081234afd 100644
--- a/include/linux/cpu.h
+++ b/include/linux/cpu.h
@@ -30,6 +30,8 @@ struct cpu {
extern void boot_cpu_init(void);
extern void boot_cpu_state_init(void);
+extern void cpu_init(void);
+extern void trap_init(void);
extern int register_cpu(struct cpu *cpu, int num);
extern struct device *get_cpu_device(unsigned cpu);
diff --git a/include/linux/sched.h b/include/linux/sched.h
index caff145aad2e..a1473cb138f6 100644
--- a/include/linux/sched.h
+++ b/include/linux/sched.h
@@ -168,13 +168,8 @@ struct uts_namespace;
/* Task command name length */
#define TASK_COMM_LEN 16
-extern void sched_init(void);
-extern void sched_init_smp(void);
-
extern cpumask_var_t cpu_isolated_map;
-extern void cpu_init (void);
-extern void trap_init(void);
extern void update_process_times(int user);
extern void scheduler_tick(void);
diff --git a/include/linux/sched/init.h b/include/linux/sched/init.h
new file mode 100644
index 000000000000..127215045285
--- /dev/null
+++ b/include/linux/sched/init.h
@@ -0,0 +1,11 @@
+#ifndef _LINUX_SCHED_INIT_H
+#define _LINUX_SCHED_INIT_H
+
+/*
+ * Scheduler init related prototypes:
+ */
+
+extern void sched_init(void);
+extern void sched_init_smp(void);
+
+#endif /* _LINUX_SCHED_INIT_H */
diff --git a/init/main.c b/init/main.c
index cd2065b115f6..5864f9e43566 100644
--- a/init/main.c
+++ b/init/main.c
@@ -62,6 +62,7 @@
#include <linux/device.h>
#include <linux/kthread.h>
#include <linux/sched.h>
+#include <linux/sched/init.h>
#include <linux/signal.h>
#include <linux/idr.h>
#include <linux/kgdb.h>
diff --git a/kernel/sched/sched.h b/kernel/sched/sched.h
index 76e3af3f39f4..5cbf92214ad8 100644
--- a/kernel/sched/sched.h
+++ b/kernel/sched/sched.h
@@ -18,6 +18,7 @@
#include <linux/sched/task.h>
#include <linux/sched/task_stack.h>
#include <linux/sched/cputime.h>
+#include <linux/sched/init.h>
#include <linux/u64_stats_sync.h>
#include <linux/kernel_stat.h>
--
2.7.4
^ permalink raw reply related [flat|nested] 119+ messages in thread
* [PATCH 75/89] sched/headers, timekeeping: Consolidate the timer tick function prototypes
2017-02-06 13:28 [PATCH 00/89] Major reorganization of <linux/sched.h> Ingo Molnar
` (73 preceding siblings ...)
2017-02-06 13:29 ` [PATCH 74/89] sched/headers: Move _init() prototypes from <linux/sched.h> to <linux/sched/init.h> Ingo Molnar
@ 2017-02-06 13:29 ` Ingo Molnar
2017-02-06 13:29 ` [PATCH 76/89] sched/headers, mm: Move 'struct tlbflush_unmap_batch' from <linux/sched.h> to <linux/mm_types_task.h> Ingo Molnar
` (15 subsequent siblings)
90 siblings, 0 replies; 119+ messages in thread
From: Ingo Molnar @ 2017-02-06 13:29 UTC (permalink / raw)
To: linux-kernel
Cc: Andrew Morton, Linus Torvalds, Mike Galbraith, Oleg Nesterov,
Peter Zijlstra, Thomas Gleixner
Move the update_process_times() and xtime_update() prototypes
to <linux/timekeeping.h>.
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
include/linux/sched.h | 1 -
include/linux/time.h | 2 --
include/linux/timekeeping.h | 4 ++++
3 files changed, 4 insertions(+), 3 deletions(-)
diff --git a/include/linux/sched.h b/include/linux/sched.h
index a1473cb138f6..08428ca98671 100644
--- a/include/linux/sched.h
+++ b/include/linux/sched.h
@@ -170,7 +170,6 @@ struct uts_namespace;
extern cpumask_var_t cpu_isolated_map;
-extern void update_process_times(int user);
extern void scheduler_tick(void);
#define MAX_SCHEDULE_TIMEOUT LONG_MAX
diff --git a/include/linux/time.h b/include/linux/time.h
index 4f4ab65b6e61..23f0f5ce3090 100644
--- a/include/linux/time.h
+++ b/include/linux/time.h
@@ -167,8 +167,6 @@ static inline bool timespec_inject_offset_valid(const struct timespec *ts)
extern u32 (*arch_gettimeoffset)(void);
#endif
-extern void xtime_update(unsigned long ticks);
-
struct itimerval;
extern int do_setitimer(int which, struct itimerval *value,
struct itimerval *ovalue);
diff --git a/include/linux/timekeeping.h b/include/linux/timekeeping.h
index d2e804e15c3e..b598cbc7b576 100644
--- a/include/linux/timekeeping.h
+++ b/include/linux/timekeeping.h
@@ -8,6 +8,10 @@
void timekeeping_init(void);
extern int timekeeping_suspended;
+/* Architecture timer tick functions: */
+extern void update_process_times(int user);
+extern void xtime_update(unsigned long ticks);
+
/*
* Get and set timeofday
*/
--
2.7.4
^ permalink raw reply related [flat|nested] 119+ messages in thread
* [PATCH 76/89] sched/headers, mm: Move 'struct tlbflush_unmap_batch' from <linux/sched.h> to <linux/mm_types_task.h>
2017-02-06 13:28 [PATCH 00/89] Major reorganization of <linux/sched.h> Ingo Molnar
` (74 preceding siblings ...)
2017-02-06 13:29 ` [PATCH 75/89] sched/headers, timekeeping: Consolidate the timer tick function prototypes Ingo Molnar
@ 2017-02-06 13:29 ` Ingo Molnar
2017-02-06 13:29 ` [PATCH 77/89] sched/headers: Move the get_task_struct()/put_task_struct() and related APIs from <linux/sched.h> to <linux/sched/task.h> Ingo Molnar
` (14 subsequent siblings)
90 siblings, 0 replies; 119+ messages in thread
From: Ingo Molnar @ 2017-02-06 13:29 UTC (permalink / raw)
To: linux-kernel
Cc: Andrew Morton, Linus Torvalds, Mike Galbraith, Oleg Nesterov,
Peter Zijlstra, Thomas Gleixner
Unclutter <linux/sched.h> some more.
Also move the CONFIG_ARCH_WANT_BATCHED_UNMAP_TLB_FLUSH condition inside the
structure body definition, to remove a pair of #ifdefs from sched.h.
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
include/linux/mm_types_task.h | 22 ++++++++++++++++++++++
include/linux/sched.h | 21 ---------------------
2 files changed, 22 insertions(+), 21 deletions(-)
diff --git a/include/linux/mm_types_task.h b/include/linux/mm_types_task.h
index 9526d8b9fe0e..136dfdf63ba1 100644
--- a/include/linux/mm_types_task.h
+++ b/include/linux/mm_types_task.h
@@ -10,6 +10,7 @@
#include <linux/types.h>
#include <linux/threads.h>
#include <linux/atomic.h>
+#include <linux/cpumask.h>
#include <asm/page.h>
@@ -62,4 +63,25 @@ struct page_frag {
#endif
};
+/* Track pages that require TLB flushes */
+struct tlbflush_unmap_batch {
+#ifdef CONFIG_ARCH_WANT_BATCHED_UNMAP_TLB_FLUSH
+ /*
+ * Each bit set is a CPU that potentially has a TLB entry for one of
+ * the PFNs being flushed. See set_tlb_ubc_flush_pending().
+ */
+ struct cpumask cpumask;
+
+ /* True if any bit in cpumask is set */
+ bool flush_required;
+
+ /*
+ * If true then the PTE was dirty when unmapped. The entry must be
+ * flushed before IO is initiated or a stale TLB entry potentially
+ * allows an update without redirtying the page.
+ */
+ bool writable;
+#endif
+};
+
#endif /* _LINUX_MM_TYPES_TASK_H */
diff --git a/include/linux/sched.h b/include/linux/sched.h
index 08428ca98671..e5bcf966e792 100644
--- a/include/linux/sched.h
+++ b/include/linux/sched.h
@@ -462,25 +462,6 @@ enum perf_event_task_context {
perf_nr_task_contexts,
};
-/* Track pages that require TLB flushes */
-struct tlbflush_unmap_batch {
- /*
- * Each bit set is a CPU that potentially has a TLB entry for one of
- * the PFNs being flushed. See set_tlb_ubc_flush_pending().
- */
- struct cpumask cpumask;
-
- /* True if any bit in cpumask is set */
- bool flush_required;
-
- /*
- * If true then the PTE was dirty when unmapped. The entry must be
- * flushed before IO is initiated or a stale TLB entry potentially
- * allows an update without redirtying the page.
- */
- bool writable;
-};
-
struct task_struct {
#ifdef CONFIG_THREAD_INFO_IN_TASK
/*
@@ -873,9 +854,7 @@ struct task_struct {
unsigned long numa_pages_migrated;
#endif /* CONFIG_NUMA_BALANCING */
-#ifdef CONFIG_ARCH_WANT_BATCHED_UNMAP_TLB_FLUSH
struct tlbflush_unmap_batch tlb_ubc;
-#endif
struct rcu_head rcu;
--
2.7.4
^ permalink raw reply related [flat|nested] 119+ messages in thread
* [PATCH 77/89] sched/headers: Move the get_task_struct()/put_task_struct() and related APIs from <linux/sched.h> to <linux/sched/task.h>
2017-02-06 13:28 [PATCH 00/89] Major reorganization of <linux/sched.h> Ingo Molnar
` (75 preceding siblings ...)
2017-02-06 13:29 ` [PATCH 76/89] sched/headers, mm: Move 'struct tlbflush_unmap_batch' from <linux/sched.h> to <linux/mm_types_task.h> Ingo Molnar
@ 2017-02-06 13:29 ` Ingo Molnar
2017-02-06 13:29 ` [PATCH 78/89] sched/core: Remove the tsk_cpus_allowed() wrapper Ingo Molnar
` (13 subsequent siblings)
90 siblings, 0 replies; 119+ messages in thread
From: Ingo Molnar @ 2017-02-06 13:29 UTC (permalink / raw)
To: linux-kernel
Cc: Andrew Morton, Linus Torvalds, Mike Galbraith, Oleg Nesterov,
Peter Zijlstra, Thomas Gleixner
Also update usage sites.
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
drivers/dma/dmatest.c | 1 +
drivers/gpu/drm/etnaviv/etnaviv_gem.c | 1 +
drivers/infiniband/core/umem_odp.c | 1 +
drivers/infiniband/hw/mlx4/main.c | 1 +
drivers/infiniband/hw/mlx5/main.c | 1 +
drivers/md/persistent-data/dm-block-manager.c | 1 +
drivers/misc/cxl/main.c | 2 ++
drivers/net/xen-netback/interface.c | 1 +
drivers/oprofile/buffer_sync.c | 1 +
drivers/tty/tty_ldsem.c | 1 +
drivers/usb/usbip/usbip_common.h | 1 +
include/linux/sched.h | 14 --------------
include/linux/sched/task.h | 15 +++++++++++++++
kernel/irq/manage.c | 1 +
14 files changed, 28 insertions(+), 14 deletions(-)
diff --git a/drivers/dma/dmatest.c b/drivers/dma/dmatest.c
index c9297605058c..54d581d407aa 100644
--- a/drivers/dma/dmatest.c
+++ b/drivers/dma/dmatest.c
@@ -16,6 +16,7 @@
#include <linux/freezer.h>
#include <linux/init.h>
#include <linux/kthread.h>
+#include <linux/sched/task.h>
#include <linux/module.h>
#include <linux/moduleparam.h>
#include <linux/random.h>
diff --git a/drivers/gpu/drm/etnaviv/etnaviv_gem.c b/drivers/gpu/drm/etnaviv/etnaviv_gem.c
index fb750cfe3c12..09105581b586 100644
--- a/drivers/gpu/drm/etnaviv/etnaviv_gem.c
+++ b/drivers/gpu/drm/etnaviv/etnaviv_gem.c
@@ -17,6 +17,7 @@
#include <linux/spinlock.h>
#include <linux/shmem_fs.h>
#include <linux/sched/mm.h>
+#include <linux/sched/task.h>
#include "etnaviv_drv.h"
#include "etnaviv_gem.h"
diff --git a/drivers/infiniband/core/umem_odp.c b/drivers/infiniband/core/umem_odp.c
index 5d942d91af39..72ee2635b924 100644
--- a/drivers/infiniband/core/umem_odp.c
+++ b/drivers/infiniband/core/umem_odp.c
@@ -33,6 +33,7 @@
#include <linux/types.h>
#include <linux/sched.h>
#include <linux/sched/mm.h>
+#include <linux/sched/task.h>
#include <linux/pid.h>
#include <linux/slab.h>
#include <linux/export.h>
diff --git a/drivers/infiniband/hw/mlx4/main.c b/drivers/infiniband/hw/mlx4/main.c
index 83bbe7d07100..80ab67c8dafb 100644
--- a/drivers/infiniband/hw/mlx4/main.c
+++ b/drivers/infiniband/hw/mlx4/main.c
@@ -40,6 +40,7 @@
#include <linux/rtnetlink.h>
#include <linux/if_vlan.h>
#include <linux/sched/mm.h>
+#include <linux/sched/task.h>
#include <net/ipv6.h>
#include <net/addrconf.h>
diff --git a/drivers/infiniband/hw/mlx5/main.c b/drivers/infiniband/hw/mlx5/main.c
index a2393b867fe8..367bbc2c47c5 100644
--- a/drivers/infiniband/hw/mlx5/main.c
+++ b/drivers/infiniband/hw/mlx5/main.c
@@ -42,6 +42,7 @@
#endif
#include <linux/sched.h>
#include <linux/sched/mm.h>
+#include <linux/sched/task.h>
#include <linux/delay.h>
#include <rdma/ib_user_verbs.h>
#include <rdma/ib_addr.h>
diff --git a/drivers/md/persistent-data/dm-block-manager.c b/drivers/md/persistent-data/dm-block-manager.c
index 758d90cc2733..43c3471bd85f 100644
--- a/drivers/md/persistent-data/dm-block-manager.c
+++ b/drivers/md/persistent-data/dm-block-manager.c
@@ -13,6 +13,7 @@
#include <linux/rwsem.h>
#include <linux/device-mapper.h>
#include <linux/stacktrace.h>
+#include <linux/sched/task.h>
#define DM_MSG_PREFIX "block manager"
diff --git a/drivers/misc/cxl/main.c b/drivers/misc/cxl/main.c
index 62e0dfb5f15b..f53027cd2eca 100644
--- a/drivers/misc/cxl/main.c
+++ b/drivers/misc/cxl/main.c
@@ -19,6 +19,8 @@
#include <linux/slab.h>
#include <linux/idr.h>
#include <linux/pci.h>
+#include <linux/sched/task.h>
+
#include <asm/cputable.h>
#include <misc/cxl-base.h>
diff --git a/drivers/net/xen-netback/interface.c b/drivers/net/xen-netback/interface.c
index 579521327b03..916e39c7da12 100644
--- a/drivers/net/xen-netback/interface.c
+++ b/drivers/net/xen-netback/interface.c
@@ -31,6 +31,7 @@
#include "common.h"
#include <linux/kthread.h>
+#include <linux/sched/task.h>
#include <linux/ethtool.h>
#include <linux/rtnetlink.h>
#include <linux/if_vlan.h>
diff --git a/drivers/oprofile/buffer_sync.c b/drivers/oprofile/buffer_sync.c
index eb0c35994b54..ac27f3d3fbb4 100644
--- a/drivers/oprofile/buffer_sync.c
+++ b/drivers/oprofile/buffer_sync.c
@@ -32,6 +32,7 @@
#include <linux/oprofile.h>
#include <linux/sched.h>
#include <linux/sched/mm.h>
+#include <linux/sched/task.h>
#include <linux/gfp.h>
#include "oprofile_stats.h"
diff --git a/drivers/tty/tty_ldsem.c b/drivers/tty/tty_ldsem.c
index 4f6b1b10b537..52b7baef4f7a 100644
--- a/drivers/tty/tty_ldsem.c
+++ b/drivers/tty/tty_ldsem.c
@@ -33,6 +33,7 @@
#include <linux/tty.h>
#include <linux/sched.h>
#include <linux/sched/debug.h>
+#include <linux/sched/task.h>
#ifdef CONFIG_DEBUG_LOCK_ALLOC
diff --git a/drivers/usb/usbip/usbip_common.h b/drivers/usb/usbip/usbip_common.h
index 9f490375ac92..f8573a52e41a 100644
--- a/drivers/usb/usbip/usbip_common.h
+++ b/drivers/usb/usbip/usbip_common.h
@@ -31,6 +31,7 @@
#include <linux/types.h>
#include <linux/usb.h>
#include <linux/wait.h>
+#include <linux/sched/task.h>
#include <uapi/linux/usbip.h>
#define USBIP_VERSION "1.0.0"
diff --git a/include/linux/sched.h b/include/linux/sched.h
index e5bcf966e792..acd9c52412ef 100644
--- a/include/linux/sched.h
+++ b/include/linux/sched.h
@@ -1119,20 +1119,6 @@ static inline int is_global_init(struct task_struct *tsk)
extern struct pid *cad_pid;
-extern void free_task(struct task_struct *tsk);
-#define get_task_struct(tsk) do { atomic_inc(&(tsk)->usage); } while(0)
-
-extern void __put_task_struct(struct task_struct *t);
-
-static inline void put_task_struct(struct task_struct *t)
-{
- if (atomic_dec_and_test(&t->usage))
- __put_task_struct(t);
-}
-
-struct task_struct *task_rcu_dereference(struct task_struct **ptask);
-struct task_struct *try_get_task_struct(struct task_struct **ptask);
-
/*
* Per process flags
*/
diff --git a/include/linux/sched/task.h b/include/linux/sched/task.h
index 81cde345917d..61fafba43833 100644
--- a/include/linux/sched/task.h
+++ b/include/linux/sched/task.h
@@ -75,6 +75,21 @@ extern long do_fork(unsigned long, unsigned long, unsigned long, int __user *, i
struct task_struct *fork_idle(int);
extern pid_t kernel_thread(int (*fn)(void *), void *arg, unsigned long flags);
+extern void free_task(struct task_struct *tsk);
+
+#define get_task_struct(tsk) do { atomic_inc(&(tsk)->usage); } while(0)
+
+extern void __put_task_struct(struct task_struct *t);
+
+static inline void put_task_struct(struct task_struct *t)
+{
+ if (atomic_dec_and_test(&t->usage))
+ __put_task_struct(t);
+}
+
+struct task_struct *task_rcu_dereference(struct task_struct **ptask);
+struct task_struct *try_get_task_struct(struct task_struct **ptask);
+
#ifdef CONFIG_ARCH_WANTS_DYNAMIC_TASK_STRUCT
extern int arch_task_struct_size __read_mostly;
diff --git a/kernel/irq/manage.c b/kernel/irq/manage.c
index fd63775796c3..721d9604aec9 100644
--- a/kernel/irq/manage.c
+++ b/kernel/irq/manage.c
@@ -17,6 +17,7 @@
#include <linux/slab.h>
#include <linux/sched.h>
#include <linux/sched/rt.h>
+#include <linux/sched/task.h>
#include <uapi/linux/sched/types.h>
#include <linux/task_work.h>
--
2.7.4
^ permalink raw reply related [flat|nested] 119+ messages in thread
* [PATCH 78/89] sched/core: Remove the tsk_cpus_allowed() wrapper
2017-02-06 13:28 [PATCH 00/89] Major reorganization of <linux/sched.h> Ingo Molnar
` (76 preceding siblings ...)
2017-02-06 13:29 ` [PATCH 77/89] sched/headers: Move the get_task_struct()/put_task_struct() and related APIs from <linux/sched.h> to <linux/sched/task.h> Ingo Molnar
@ 2017-02-06 13:29 ` Ingo Molnar
2017-02-06 14:53 ` Peter Zijlstra
2017-02-06 14:59 ` Peter Zijlstra
2017-02-06 13:29 ` [PATCH 79/89] sched/core: Remove the tsk_nr_cpus_allowed() wrapper Ingo Molnar
` (12 subsequent siblings)
90 siblings, 2 replies; 119+ messages in thread
From: Ingo Molnar @ 2017-02-06 13:29 UTC (permalink / raw)
To: linux-kernel
Cc: Andrew Morton, Linus Torvalds, Mike Galbraith, Oleg Nesterov,
Peter Zijlstra, Thomas Gleixner
So the original intention of tsk_cpus_allowed() was to 'future-proof'
the field - but it's pretty ineffectual at that, because half of
the code uses ->cpus_allowed directly ...
Also, the wrapper makes the code longer than the original expression!
So just get rid of it. This also shrinks <linux/sched.h> a bit.
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
arch/powerpc/kernel/smp.c | 2 +-
arch/powerpc/platforms/cell/spufs/sched.c | 2 +-
arch/sparc/kernel/sysfs.c | 2 +-
drivers/cpufreq/sparc-us2e-cpufreq.c | 4 ++--
drivers/cpufreq/sparc-us3-cpufreq.c | 4 ++--
drivers/infiniband/hw/hfi1/affinity.c | 2 +-
drivers/infiniband/hw/hfi1/sdma.c | 2 +-
include/linux/sched.h | 3 ---
kernel/sched/core.c | 20 ++++++++++----------
kernel/sched/cpudeadline.c | 4 ++--
kernel/sched/cpupri.c | 4 ++--
kernel/sched/deadline.c | 7 +++----
kernel/sched/fair.c | 25 ++++++++++++-------------
kernel/sched/rt.c | 5 ++---
lib/smp_processor_id.c | 2 +-
samples/trace_events/trace-events-sample.c | 2 +-
16 files changed, 42 insertions(+), 48 deletions(-)
diff --git a/arch/powerpc/kernel/smp.c b/arch/powerpc/kernel/smp.c
index 54903862cf57..f40e2a5cf044 100644
--- a/arch/powerpc/kernel/smp.c
+++ b/arch/powerpc/kernel/smp.c
@@ -796,7 +796,7 @@ void __init smp_cpus_done(unsigned int max_cpus)
* se we pin us down to CPU 0 for a short while
*/
alloc_cpumask_var(&old_mask, GFP_NOWAIT);
- cpumask_copy(old_mask, tsk_cpus_allowed(current));
+ cpumask_copy(old_mask, ¤t->cpus_allowed);
set_cpus_allowed_ptr(current, cpumask_of(boot_cpuid));
if (smp_ops && smp_ops->setup_cpu)
diff --git a/arch/powerpc/platforms/cell/spufs/sched.c b/arch/powerpc/platforms/cell/spufs/sched.c
index ff8f00839638..1fbb5da17dd2 100644
--- a/arch/powerpc/platforms/cell/spufs/sched.c
+++ b/arch/powerpc/platforms/cell/spufs/sched.c
@@ -141,7 +141,7 @@ void __spu_update_sched_info(struct spu_context *ctx)
* runqueue. The context will be rescheduled on the proper node
* if it is timesliced or preempted.
*/
- cpumask_copy(&ctx->cpus_allowed, tsk_cpus_allowed(current));
+ cpumask_copy(&ctx->cpus_allowed, ¤t->cpus_allowed);
/* Save the current cpu id for spu interrupt routing. */
ctx->last_ran = raw_smp_processor_id();
diff --git a/arch/sparc/kernel/sysfs.c b/arch/sparc/kernel/sysfs.c
index 4808b6d23455..d63fc613e7a9 100644
--- a/arch/sparc/kernel/sysfs.c
+++ b/arch/sparc/kernel/sysfs.c
@@ -106,7 +106,7 @@ static unsigned long run_on_cpu(unsigned long cpu,
cpumask_t old_affinity;
unsigned long ret;
- cpumask_copy(&old_affinity, tsk_cpus_allowed(current));
+ cpumask_copy(&old_affinity, ¤t->cpus_allowed);
/* should return -EINVAL to userspace */
if (set_cpus_allowed_ptr(current, cpumask_of(cpu)))
return 0;
diff --git a/drivers/cpufreq/sparc-us2e-cpufreq.c b/drivers/cpufreq/sparc-us2e-cpufreq.c
index b73feeb666f9..35ddb6da93aa 100644
--- a/drivers/cpufreq/sparc-us2e-cpufreq.c
+++ b/drivers/cpufreq/sparc-us2e-cpufreq.c
@@ -234,7 +234,7 @@ static unsigned int us2e_freq_get(unsigned int cpu)
cpumask_t cpus_allowed;
unsigned long clock_tick, estar;
- cpumask_copy(&cpus_allowed, tsk_cpus_allowed(current));
+ cpumask_copy(&cpus_allowed, ¤t->cpus_allowed);
set_cpus_allowed_ptr(current, cpumask_of(cpu));
clock_tick = sparc64_get_clock_tick(cpu) / 1000;
@@ -252,7 +252,7 @@ static int us2e_freq_target(struct cpufreq_policy *policy, unsigned int index)
unsigned long clock_tick, divisor, old_divisor, estar;
cpumask_t cpus_allowed;
- cpumask_copy(&cpus_allowed, tsk_cpus_allowed(current));
+ cpumask_copy(&cpus_allowed, ¤t->cpus_allowed);
set_cpus_allowed_ptr(current, cpumask_of(cpu));
new_freq = clock_tick = sparc64_get_clock_tick(cpu) / 1000;
diff --git a/drivers/cpufreq/sparc-us3-cpufreq.c b/drivers/cpufreq/sparc-us3-cpufreq.c
index 9bb42ba50efa..a8d86a449ca1 100644
--- a/drivers/cpufreq/sparc-us3-cpufreq.c
+++ b/drivers/cpufreq/sparc-us3-cpufreq.c
@@ -82,7 +82,7 @@ static unsigned int us3_freq_get(unsigned int cpu)
unsigned long reg;
unsigned int ret;
- cpumask_copy(&cpus_allowed, tsk_cpus_allowed(current));
+ cpumask_copy(&cpus_allowed, ¤t->cpus_allowed);
set_cpus_allowed_ptr(current, cpumask_of(cpu));
reg = read_safari_cfg();
@@ -99,7 +99,7 @@ static int us3_freq_target(struct cpufreq_policy *policy, unsigned int index)
unsigned long new_bits, new_freq, reg;
cpumask_t cpus_allowed;
- cpumask_copy(&cpus_allowed, tsk_cpus_allowed(current));
+ cpumask_copy(&cpus_allowed, ¤t->cpus_allowed);
set_cpus_allowed_ptr(current, cpumask_of(cpu));
new_freq = sparc64_get_clock_tick(cpu) / 1000;
diff --git a/drivers/infiniband/hw/hfi1/affinity.c b/drivers/infiniband/hw/hfi1/affinity.c
index 7a3d906b3671..e2cd2cd3b28a 100644
--- a/drivers/infiniband/hw/hfi1/affinity.c
+++ b/drivers/infiniband/hw/hfi1/affinity.c
@@ -576,7 +576,7 @@ int hfi1_get_proc_affinity(int node)
struct hfi1_affinity_node *entry;
cpumask_var_t diff, hw_thread_mask, available_mask, intrs_mask;
const struct cpumask *node_mask,
- *proc_mask = tsk_cpus_allowed(current);
+ *proc_mask = ¤t->cpus_allowed;
struct hfi1_affinity_node_list *affinity = &node_affinity;
struct cpu_mask_set *set = &affinity->proc;
diff --git a/drivers/infiniband/hw/hfi1/sdma.c b/drivers/infiniband/hw/hfi1/sdma.c
index 1d81cac1fa6c..5cde1ecda0fe 100644
--- a/drivers/infiniband/hw/hfi1/sdma.c
+++ b/drivers/infiniband/hw/hfi1/sdma.c
@@ -856,7 +856,7 @@ struct sdma_engine *sdma_select_user_engine(struct hfi1_devdata *dd,
{
struct sdma_rht_node *rht_node;
struct sdma_engine *sde = NULL;
- const struct cpumask *current_mask = tsk_cpus_allowed(current);
+ const struct cpumask *current_mask = ¤t->cpus_allowed;
unsigned long cpu_id;
/*
diff --git a/include/linux/sched.h b/include/linux/sched.h
index acd9c52412ef..33ea1897bcbc 100644
--- a/include/linux/sched.h
+++ b/include/linux/sched.h
@@ -962,9 +962,6 @@ struct task_struct {
*/
};
-/* Future-safe accessor for struct task_struct's cpus_allowed. */
-#define tsk_cpus_allowed(tsk) (&(tsk)->cpus_allowed)
-
static inline int tsk_nr_cpus_allowed(struct task_struct *p)
{
return p->nr_cpus_allowed;
diff --git a/kernel/sched/core.c b/kernel/sched/core.c
index bf2448b4dd98..4e12e7cedabb 100644
--- a/kernel/sched/core.c
+++ b/kernel/sched/core.c
@@ -983,7 +983,7 @@ static struct rq *__migrate_task(struct rq *rq, struct task_struct *p, int dest_
return rq;
/* Affinity changed (again). */
- if (!cpumask_test_cpu(dest_cpu, tsk_cpus_allowed(p)))
+ if (!cpumask_test_cpu(dest_cpu, &p->cpus_allowed))
return rq;
rq = move_queued_task(rq, p, dest_cpu);
@@ -1260,10 +1260,10 @@ static int migrate_swap_stop(void *data)
if (task_cpu(arg->src_task) != arg->src_cpu)
goto unlock;
- if (!cpumask_test_cpu(arg->dst_cpu, tsk_cpus_allowed(arg->src_task)))
+ if (!cpumask_test_cpu(arg->dst_cpu, &arg->src_task->cpus_allowed))
goto unlock;
- if (!cpumask_test_cpu(arg->src_cpu, tsk_cpus_allowed(arg->dst_task)))
+ if (!cpumask_test_cpu(arg->src_cpu, &arg->dst_task->cpus_allowed))
goto unlock;
__migrate_swap_task(arg->src_task, arg->dst_cpu);
@@ -1304,10 +1304,10 @@ int migrate_swap(struct task_struct *cur, struct task_struct *p)
if (!cpu_active(arg.src_cpu) || !cpu_active(arg.dst_cpu))
goto out;
- if (!cpumask_test_cpu(arg.dst_cpu, tsk_cpus_allowed(arg.src_task)))
+ if (!cpumask_test_cpu(arg.dst_cpu, &arg.src_task->cpus_allowed))
goto out;
- if (!cpumask_test_cpu(arg.src_cpu, tsk_cpus_allowed(arg.dst_task)))
+ if (!cpumask_test_cpu(arg.src_cpu, &arg.dst_task->cpus_allowed))
goto out;
trace_sched_swap_numa(cur, arg.src_cpu, p, arg.dst_cpu);
@@ -1491,14 +1491,14 @@ static int select_fallback_rq(int cpu, struct task_struct *p)
for_each_cpu(dest_cpu, nodemask) {
if (!cpu_active(dest_cpu))
continue;
- if (cpumask_test_cpu(dest_cpu, tsk_cpus_allowed(p)))
+ if (cpumask_test_cpu(dest_cpu, &p->cpus_allowed))
return dest_cpu;
}
}
for (;;) {
/* Any allowed, online CPU? */
- for_each_cpu(dest_cpu, tsk_cpus_allowed(p)) {
+ for_each_cpu(dest_cpu, &p->cpus_allowed) {
if (!(p->flags & PF_KTHREAD) && !cpu_active(dest_cpu))
continue;
if (!cpu_online(dest_cpu))
@@ -1553,7 +1553,7 @@ int select_task_rq(struct task_struct *p, int cpu, int sd_flags, int wake_flags)
if (tsk_nr_cpus_allowed(p) > 1)
cpu = p->sched_class->select_task_rq(p, cpu, sd_flags, wake_flags);
else
- cpu = cpumask_any(tsk_cpus_allowed(p));
+ cpu = cpumask_any(&p->cpus_allowed);
/*
* In order not to call set_task_cpu() on a blocking task we need
@@ -1565,7 +1565,7 @@ int select_task_rq(struct task_struct *p, int cpu, int sd_flags, int wake_flags)
* [ this allows ->select_task() to simply return task_cpu(p) and
* not worry about this generic constraint ]
*/
- if (unlikely(!cpumask_test_cpu(cpu, tsk_cpus_allowed(p)) ||
+ if (unlikely(!cpumask_test_cpu(cpu, &p->cpus_allowed) ||
!cpu_online(cpu)))
cpu = select_fallback_rq(task_cpu(p), p);
@@ -5474,7 +5474,7 @@ int migrate_task_to(struct task_struct *p, int target_cpu)
if (curr_cpu == target_cpu)
return 0;
- if (!cpumask_test_cpu(target_cpu, tsk_cpus_allowed(p)))
+ if (!cpumask_test_cpu(target_cpu, &p->cpus_allowed))
return -EINVAL;
/* TODO: This is not properly updating schedstats */
diff --git a/kernel/sched/cpudeadline.c b/kernel/sched/cpudeadline.c
index e73119013c53..fba235c7d026 100644
--- a/kernel/sched/cpudeadline.c
+++ b/kernel/sched/cpudeadline.c
@@ -128,10 +128,10 @@ int cpudl_find(struct cpudl *cp, struct task_struct *p,
const struct sched_dl_entity *dl_se = &p->dl;
if (later_mask &&
- cpumask_and(later_mask, cp->free_cpus, tsk_cpus_allowed(p))) {
+ cpumask_and(later_mask, cp->free_cpus, &p->cpus_allowed)) {
best_cpu = cpumask_any(later_mask);
goto out;
- } else if (cpumask_test_cpu(cpudl_maximum(cp), tsk_cpus_allowed(p)) &&
+ } else if (cpumask_test_cpu(cpudl_maximum(cp), &p->cpus_allowed) &&
dl_time_before(dl_se->deadline, cp->elements[0].dl)) {
best_cpu = cpudl_maximum(cp);
if (later_mask)
diff --git a/kernel/sched/cpupri.c b/kernel/sched/cpupri.c
index 11e9705bf937..981fcd7dc394 100644
--- a/kernel/sched/cpupri.c
+++ b/kernel/sched/cpupri.c
@@ -103,11 +103,11 @@ int cpupri_find(struct cpupri *cp, struct task_struct *p,
if (skip)
continue;
- if (cpumask_any_and(tsk_cpus_allowed(p), vec->mask) >= nr_cpu_ids)
+ if (cpumask_any_and(&p->cpus_allowed, vec->mask) >= nr_cpu_ids)
continue;
if (lowest_mask) {
- cpumask_and(lowest_mask, tsk_cpus_allowed(p), vec->mask);
+ cpumask_and(lowest_mask, &p->cpus_allowed, vec->mask);
/*
* We have to ensure that we have at least one bit
diff --git a/kernel/sched/deadline.c b/kernel/sched/deadline.c
index 27737f34757d..8e4d6e4e3ccc 100644
--- a/kernel/sched/deadline.c
+++ b/kernel/sched/deadline.c
@@ -252,7 +252,7 @@ static struct rq *dl_task_offline_migration(struct rq *rq, struct task_struct *p
* If we cannot preempt any rq, fall back to pick any
* online cpu.
*/
- cpu = cpumask_any_and(cpu_active_mask, tsk_cpus_allowed(p));
+ cpu = cpumask_any_and(cpu_active_mask, &p->cpus_allowed);
if (cpu >= nr_cpu_ids) {
/*
* Fail to find any suitable cpu.
@@ -1235,7 +1235,7 @@ static void set_curr_task_dl(struct rq *rq)
static int pick_dl_task(struct rq *rq, struct task_struct *p, int cpu)
{
if (!task_running(rq, p) &&
- cpumask_test_cpu(cpu, tsk_cpus_allowed(p)))
+ cpumask_test_cpu(cpu, &p->cpus_allowed))
return 1;
return 0;
}
@@ -1384,8 +1384,7 @@ static struct rq *find_lock_later_rq(struct task_struct *task, struct rq *rq)
/* Retry if something changed. */
if (double_lock_balance(rq, later_rq)) {
if (unlikely(task_rq(task) != rq ||
- !cpumask_test_cpu(later_rq->cpu,
- tsk_cpus_allowed(task)) ||
+ !cpumask_test_cpu(later_rq->cpu, &task->cpus_allowed) ||
task_running(rq, task) ||
!dl_task(task) ||
!task_on_rq_queued(task))) {
diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c
index 6ab887fbf0ef..3e88b35ac157 100644
--- a/kernel/sched/fair.c
+++ b/kernel/sched/fair.c
@@ -1553,7 +1553,7 @@ static void task_numa_compare(struct task_numa_env *env,
*/
if (cur) {
/* Skip this swap candidate if cannot move to the source cpu */
- if (!cpumask_test_cpu(env->src_cpu, tsk_cpus_allowed(cur)))
+ if (!cpumask_test_cpu(env->src_cpu, &cur->cpus_allowed))
goto unlock;
/*
@@ -1663,7 +1663,7 @@ static void task_numa_find_cpu(struct task_numa_env *env,
for_each_cpu(cpu, cpumask_of_node(env->dst_nid)) {
/* Skip this CPU if the source task cannot migrate */
- if (!cpumask_test_cpu(cpu, tsk_cpus_allowed(env->p)))
+ if (!cpumask_test_cpu(cpu, &env->p->cpus_allowed))
continue;
env->dst_cpu = cpu;
@@ -5460,7 +5460,7 @@ find_idlest_group(struct sched_domain *sd, struct task_struct *p,
/* Skip over this group if it has no CPUs allowed */
if (!cpumask_intersects(sched_group_cpus(group),
- tsk_cpus_allowed(p)))
+ &p->cpus_allowed))
continue;
local_group = cpumask_test_cpu(this_cpu,
@@ -5580,7 +5580,7 @@ find_idlest_cpu(struct sched_group *group, struct task_struct *p, int this_cpu)
return cpumask_first(sched_group_cpus(group));
/* Traverse only the allowed CPUs */
- for_each_cpu_and(i, sched_group_cpus(group), tsk_cpus_allowed(p)) {
+ for_each_cpu_and(i, sched_group_cpus(group), &p->cpus_allowed) {
if (idle_cpu(i)) {
struct rq *rq = cpu_rq(i);
struct cpuidle_state *idle = idle_get_state(rq);
@@ -5719,7 +5719,7 @@ static int select_idle_core(struct task_struct *p, struct sched_domain *sd, int
if (!test_idle_cores(target, false))
return -1;
- cpumask_and(cpus, sched_domain_span(sd), tsk_cpus_allowed(p));
+ cpumask_and(cpus, sched_domain_span(sd), &p->cpus_allowed);
for_each_cpu_wrap(core, cpus, target, wrap) {
bool idle = true;
@@ -5753,7 +5753,7 @@ static int select_idle_smt(struct task_struct *p, struct sched_domain *sd, int t
return -1;
for_each_cpu(cpu, cpu_smt_mask(target)) {
- if (!cpumask_test_cpu(cpu, tsk_cpus_allowed(p)))
+ if (!cpumask_test_cpu(cpu, &p->cpus_allowed))
continue;
if (idle_cpu(cpu))
return cpu;
@@ -5805,7 +5805,7 @@ static int select_idle_cpu(struct task_struct *p, struct sched_domain *sd, int t
time = local_clock();
for_each_cpu_wrap(cpu, sched_domain_span(sd), target, wrap) {
- if (!cpumask_test_cpu(cpu, tsk_cpus_allowed(p)))
+ if (!cpumask_test_cpu(cpu, &p->cpus_allowed))
continue;
if (idle_cpu(cpu))
break;
@@ -5960,7 +5960,7 @@ select_task_rq_fair(struct task_struct *p, int prev_cpu, int sd_flag, int wake_f
if (sd_flag & SD_BALANCE_WAKE) {
record_wakee(p);
want_affine = !wake_wide(p) && !wake_cap(p, cpu, prev_cpu)
- && cpumask_test_cpu(cpu, tsk_cpus_allowed(p));
+ && cpumask_test_cpu(cpu, &p->cpus_allowed);
}
rcu_read_lock();
@@ -6700,7 +6700,7 @@ int can_migrate_task(struct task_struct *p, struct lb_env *env)
if (throttled_lb_pair(task_group(p), env->src_cpu, env->dst_cpu))
return 0;
- if (!cpumask_test_cpu(env->dst_cpu, tsk_cpus_allowed(p))) {
+ if (!cpumask_test_cpu(env->dst_cpu, &p->cpus_allowed)) {
int cpu;
schedstat_inc(p->se.statistics.nr_failed_migrations_affine);
@@ -6720,7 +6720,7 @@ int can_migrate_task(struct task_struct *p, struct lb_env *env)
/* Prevent to re-select dst_cpu via env's cpus */
for_each_cpu_and(cpu, env->dst_grpmask, env->cpus) {
- if (cpumask_test_cpu(cpu, tsk_cpus_allowed(p))) {
+ if (cpumask_test_cpu(cpu, &p->cpus_allowed)) {
env->flags |= LBF_DST_PINNED;
env->new_dst_cpu = cpu;
break;
@@ -7254,7 +7254,7 @@ check_cpu_capacity(struct rq *rq, struct sched_domain *sd)
/*
* Group imbalance indicates (and tries to solve) the problem where balancing
- * groups is inadequate due to tsk_cpus_allowed() constraints.
+ * groups is inadequate due to ->cpus_allowed constraints.
*
* Imagine a situation of two groups of 4 cpus each and 4 tasks each with a
* cpumask covering 1 cpu of the first group and 3 cpus of the second group.
@@ -8213,8 +8213,7 @@ static int load_balance(int this_cpu, struct rq *this_rq,
* if the curr task on busiest cpu can't be
* moved to this_cpu
*/
- if (!cpumask_test_cpu(this_cpu,
- tsk_cpus_allowed(busiest->curr))) {
+ if (!cpumask_test_cpu(this_cpu, &busiest->curr->cpus_allowed)) {
raw_spin_unlock_irqrestore(&busiest->lock,
flags);
env.flags |= LBF_ALL_PINNED;
diff --git a/kernel/sched/rt.c b/kernel/sched/rt.c
index e8836cfc4cdb..cbd356f63883 100644
--- a/kernel/sched/rt.c
+++ b/kernel/sched/rt.c
@@ -1591,7 +1591,7 @@ static void put_prev_task_rt(struct rq *rq, struct task_struct *p)
static int pick_rt_task(struct rq *rq, struct task_struct *p, int cpu)
{
if (!task_running(rq, p) &&
- cpumask_test_cpu(cpu, tsk_cpus_allowed(p)))
+ cpumask_test_cpu(cpu, &p->cpus_allowed))
return 1;
return 0;
}
@@ -1726,8 +1726,7 @@ static struct rq *find_lock_lowest_rq(struct task_struct *task, struct rq *rq)
* Also make sure that it wasn't scheduled on its rq.
*/
if (unlikely(task_rq(task) != rq ||
- !cpumask_test_cpu(lowest_rq->cpu,
- tsk_cpus_allowed(task)) ||
+ !cpumask_test_cpu(lowest_rq->cpu, &task->cpus_allowed) ||
task_running(rq, task) ||
!rt_task(task) ||
!task_on_rq_queued(task))) {
diff --git a/lib/smp_processor_id.c b/lib/smp_processor_id.c
index 1afec32de6f2..690d75b132fa 100644
--- a/lib/smp_processor_id.c
+++ b/lib/smp_processor_id.c
@@ -22,7 +22,7 @@ notrace static unsigned int check_preemption_disabled(const char *what1,
* Kernel threads bound to a single CPU can safely use
* smp_processor_id():
*/
- if (cpumask_equal(tsk_cpus_allowed(current), cpumask_of(this_cpu)))
+ if (cpumask_equal(¤t->cpus_allowed, cpumask_of(this_cpu)))
goto out;
/*
diff --git a/samples/trace_events/trace-events-sample.c b/samples/trace_events/trace-events-sample.c
index 30e282d33d4d..bc7fcf010a5b 100644
--- a/samples/trace_events/trace-events-sample.c
+++ b/samples/trace_events/trace-events-sample.c
@@ -33,7 +33,7 @@ static void simple_thread_func(int cnt)
/* Silly tracepoints */
trace_foo_bar("hello", cnt, array, random_strings[len],
- tsk_cpus_allowed(current));
+ ¤t->cpus_allowed);
trace_foo_with_template_simple("HELLO", cnt);
--
2.7.4
^ permalink raw reply related [flat|nested] 119+ messages in thread
* [PATCH 79/89] sched/core: Remove the tsk_nr_cpus_allowed() wrapper
2017-02-06 13:28 [PATCH 00/89] Major reorganization of <linux/sched.h> Ingo Molnar
` (77 preceding siblings ...)
2017-02-06 13:29 ` [PATCH 78/89] sched/core: Remove the tsk_cpus_allowed() wrapper Ingo Molnar
@ 2017-02-06 13:29 ` Ingo Molnar
2017-02-06 13:29 ` [PATCH 80/89] sched/headers: Move the <linux/magic.h> include to <linux/sched/task_stack.h> Ingo Molnar
` (11 subsequent siblings)
90 siblings, 0 replies; 119+ messages in thread
From: Ingo Molnar @ 2017-02-06 13:29 UTC (permalink / raw)
To: linux-kernel
Cc: Andrew Morton, Linus Torvalds, Mike Galbraith, Oleg Nesterov,
Peter Zijlstra, Thomas Gleixner
tsk_nr_cpus_allowed() too is a pretty pointless wrapper that
is not used consistently and which makes the code both harder
to read and longer as well.
So remove it - this also shrinks <linux/sched.h> a bit.
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
include/linux/sched.h | 5 -----
kernel/sched/core.c | 2 +-
kernel/sched/deadline.c | 28 ++++++++++++++--------------
kernel/sched/rt.c | 24 ++++++++++++------------
4 files changed, 27 insertions(+), 32 deletions(-)
diff --git a/include/linux/sched.h b/include/linux/sched.h
index 33ea1897bcbc..c570e5e35ab2 100644
--- a/include/linux/sched.h
+++ b/include/linux/sched.h
@@ -962,11 +962,6 @@ struct task_struct {
*/
};
-static inline int tsk_nr_cpus_allowed(struct task_struct *p)
-{
- return p->nr_cpus_allowed;
-}
-
static inline struct pid *task_pid(struct task_struct *task)
{
return task->pids[PIDTYPE_PID].pid;
diff --git a/kernel/sched/core.c b/kernel/sched/core.c
index 4e12e7cedabb..9f3f8c2b6046 100644
--- a/kernel/sched/core.c
+++ b/kernel/sched/core.c
@@ -1550,7 +1550,7 @@ int select_task_rq(struct task_struct *p, int cpu, int sd_flags, int wake_flags)
{
lockdep_assert_held(&p->pi_lock);
- if (tsk_nr_cpus_allowed(p) > 1)
+ if (p->nr_cpus_allowed > 1)
cpu = p->sched_class->select_task_rq(p, cpu, sd_flags, wake_flags);
else
cpu = cpumask_any(&p->cpus_allowed);
diff --git a/kernel/sched/deadline.c b/kernel/sched/deadline.c
index 8e4d6e4e3ccc..99b2c33a9fbc 100644
--- a/kernel/sched/deadline.c
+++ b/kernel/sched/deadline.c
@@ -134,7 +134,7 @@ static void inc_dl_migration(struct sched_dl_entity *dl_se, struct dl_rq *dl_rq)
{
struct task_struct *p = dl_task_of(dl_se);
- if (tsk_nr_cpus_allowed(p) > 1)
+ if (p->nr_cpus_allowed > 1)
dl_rq->dl_nr_migratory++;
update_dl_migration(dl_rq);
@@ -144,7 +144,7 @@ static void dec_dl_migration(struct sched_dl_entity *dl_se, struct dl_rq *dl_rq)
{
struct task_struct *p = dl_task_of(dl_se);
- if (tsk_nr_cpus_allowed(p) > 1)
+ if (p->nr_cpus_allowed > 1)
dl_rq->dl_nr_migratory--;
update_dl_migration(dl_rq);
@@ -958,7 +958,7 @@ static void enqueue_task_dl(struct rq *rq, struct task_struct *p, int flags)
enqueue_dl_entity(&p->dl, pi_se, flags);
- if (!task_current(rq, p) && tsk_nr_cpus_allowed(p) > 1)
+ if (!task_current(rq, p) && p->nr_cpus_allowed > 1)
enqueue_pushable_dl_task(rq, p);
}
@@ -1032,9 +1032,9 @@ select_task_rq_dl(struct task_struct *p, int cpu, int sd_flag, int flags)
* try to make it stay here, it might be important.
*/
if (unlikely(dl_task(curr)) &&
- (tsk_nr_cpus_allowed(curr) < 2 ||
+ (curr->nr_cpus_allowed < 2 ||
!dl_entity_preempt(&p->dl, &curr->dl)) &&
- (tsk_nr_cpus_allowed(p) > 1)) {
+ (p->nr_cpus_allowed > 1)) {
int target = find_later_rq(p);
if (target != -1 &&
@@ -1055,7 +1055,7 @@ static void check_preempt_equal_dl(struct rq *rq, struct task_struct *p)
* Current can't be migrated, useless to reschedule,
* let's hope p can move out.
*/
- if (tsk_nr_cpus_allowed(rq->curr) == 1 ||
+ if (rq->curr->nr_cpus_allowed == 1 ||
cpudl_find(&rq->rd->cpudl, rq->curr, NULL) == -1)
return;
@@ -1063,7 +1063,7 @@ static void check_preempt_equal_dl(struct rq *rq, struct task_struct *p)
* p is migratable, so let's not schedule it and
* see if it is pushed or pulled somewhere else.
*/
- if (tsk_nr_cpus_allowed(p) != 1 &&
+ if (p->nr_cpus_allowed != 1 &&
cpudl_find(&rq->rd->cpudl, p, NULL) != -1)
return;
@@ -1178,7 +1178,7 @@ static void put_prev_task_dl(struct rq *rq, struct task_struct *p)
{
update_curr_dl(rq);
- if (on_dl_rq(&p->dl) && tsk_nr_cpus_allowed(p) > 1)
+ if (on_dl_rq(&p->dl) && p->nr_cpus_allowed > 1)
enqueue_pushable_dl_task(rq, p);
}
@@ -1279,7 +1279,7 @@ static int find_later_rq(struct task_struct *task)
if (unlikely(!later_mask))
return -1;
- if (tsk_nr_cpus_allowed(task) == 1)
+ if (task->nr_cpus_allowed == 1)
return -1;
/*
@@ -1424,7 +1424,7 @@ static struct task_struct *pick_next_pushable_dl_task(struct rq *rq)
BUG_ON(rq->cpu != task_cpu(p));
BUG_ON(task_current(rq, p));
- BUG_ON(tsk_nr_cpus_allowed(p) <= 1);
+ BUG_ON(p->nr_cpus_allowed <= 1);
BUG_ON(!task_on_rq_queued(p));
BUG_ON(!dl_task(p));
@@ -1463,7 +1463,7 @@ static int push_dl_task(struct rq *rq)
*/
if (dl_task(rq->curr) &&
dl_time_before(next_task->dl.deadline, rq->curr->dl.deadline) &&
- tsk_nr_cpus_allowed(rq->curr) > 1) {
+ rq->curr->nr_cpus_allowed > 1) {
resched_curr(rq);
return 0;
}
@@ -1610,9 +1610,9 @@ static void task_woken_dl(struct rq *rq, struct task_struct *p)
{
if (!task_running(rq, p) &&
!test_tsk_need_resched(rq->curr) &&
- tsk_nr_cpus_allowed(p) > 1 &&
+ p->nr_cpus_allowed > 1 &&
dl_task(rq->curr) &&
- (tsk_nr_cpus_allowed(rq->curr) < 2 ||
+ (rq->curr->nr_cpus_allowed < 2 ||
!dl_entity_preempt(&p->dl, &rq->curr->dl))) {
push_dl_tasks(rq);
}
@@ -1726,7 +1726,7 @@ static void switched_to_dl(struct rq *rq, struct task_struct *p)
if (rq->curr != p) {
#ifdef CONFIG_SMP
- if (tsk_nr_cpus_allowed(p) > 1 && rq->dl.overloaded)
+ if (p->nr_cpus_allowed > 1 && rq->dl.overloaded)
queue_push_tasks(rq);
#endif
if (dl_task(rq->curr))
diff --git a/kernel/sched/rt.c b/kernel/sched/rt.c
index cbd356f63883..9f3e40226dec 100644
--- a/kernel/sched/rt.c
+++ b/kernel/sched/rt.c
@@ -335,7 +335,7 @@ static void inc_rt_migration(struct sched_rt_entity *rt_se, struct rt_rq *rt_rq)
rt_rq = &rq_of_rt_rq(rt_rq)->rt;
rt_rq->rt_nr_total++;
- if (tsk_nr_cpus_allowed(p) > 1)
+ if (p->nr_cpus_allowed > 1)
rt_rq->rt_nr_migratory++;
update_rt_migration(rt_rq);
@@ -352,7 +352,7 @@ static void dec_rt_migration(struct sched_rt_entity *rt_se, struct rt_rq *rt_rq)
rt_rq = &rq_of_rt_rq(rt_rq)->rt;
rt_rq->rt_nr_total--;
- if (tsk_nr_cpus_allowed(p) > 1)
+ if (p->nr_cpus_allowed > 1)
rt_rq->rt_nr_migratory--;
update_rt_migration(rt_rq);
@@ -1324,7 +1324,7 @@ enqueue_task_rt(struct rq *rq, struct task_struct *p, int flags)
enqueue_rt_entity(rt_se, flags);
- if (!task_current(rq, p) && tsk_nr_cpus_allowed(p) > 1)
+ if (!task_current(rq, p) && p->nr_cpus_allowed > 1)
enqueue_pushable_task(rq, p);
}
@@ -1413,7 +1413,7 @@ select_task_rq_rt(struct task_struct *p, int cpu, int sd_flag, int flags)
* will have to sort it out.
*/
if (curr && unlikely(rt_task(curr)) &&
- (tsk_nr_cpus_allowed(curr) < 2 ||
+ (curr->nr_cpus_allowed < 2 ||
curr->prio <= p->prio)) {
int target = find_lowest_rq(p);
@@ -1437,7 +1437,7 @@ static void check_preempt_equal_prio(struct rq *rq, struct task_struct *p)
* Current can't be migrated, useless to reschedule,
* let's hope p can move out.
*/
- if (tsk_nr_cpus_allowed(rq->curr) == 1 ||
+ if (rq->curr->nr_cpus_allowed == 1 ||
!cpupri_find(&rq->rd->cpupri, rq->curr, NULL))
return;
@@ -1445,7 +1445,7 @@ static void check_preempt_equal_prio(struct rq *rq, struct task_struct *p)
* p is migratable, so let's not schedule it and
* see if it is pushed or pulled somewhere else.
*/
- if (tsk_nr_cpus_allowed(p) != 1
+ if (p->nr_cpus_allowed != 1
&& cpupri_find(&rq->rd->cpupri, p, NULL))
return;
@@ -1579,7 +1579,7 @@ static void put_prev_task_rt(struct rq *rq, struct task_struct *p)
* The previous task needs to be made eligible for pushing
* if it is still active
*/
- if (on_rt_rq(&p->rt) && tsk_nr_cpus_allowed(p) > 1)
+ if (on_rt_rq(&p->rt) && p->nr_cpus_allowed > 1)
enqueue_pushable_task(rq, p);
}
@@ -1629,7 +1629,7 @@ static int find_lowest_rq(struct task_struct *task)
if (unlikely(!lowest_mask))
return -1;
- if (tsk_nr_cpus_allowed(task) == 1)
+ if (task->nr_cpus_allowed == 1)
return -1; /* No other targets possible */
if (!cpupri_find(&task_rq(task)->rd->cpupri, task, lowest_mask))
@@ -1761,7 +1761,7 @@ static struct task_struct *pick_next_pushable_task(struct rq *rq)
BUG_ON(rq->cpu != task_cpu(p));
BUG_ON(task_current(rq, p));
- BUG_ON(tsk_nr_cpus_allowed(p) <= 1);
+ BUG_ON(p->nr_cpus_allowed <= 1);
BUG_ON(!task_on_rq_queued(p));
BUG_ON(!rt_task(p));
@@ -2121,9 +2121,9 @@ static void task_woken_rt(struct rq *rq, struct task_struct *p)
{
if (!task_running(rq, p) &&
!test_tsk_need_resched(rq->curr) &&
- tsk_nr_cpus_allowed(p) > 1 &&
+ p->nr_cpus_allowed > 1 &&
(dl_task(rq->curr) || rt_task(rq->curr)) &&
- (tsk_nr_cpus_allowed(rq->curr) < 2 ||
+ (rq->curr->nr_cpus_allowed < 2 ||
rq->curr->prio <= p->prio))
push_rt_tasks(rq);
}
@@ -2196,7 +2196,7 @@ static void switched_to_rt(struct rq *rq, struct task_struct *p)
*/
if (task_on_rq_queued(p) && rq->curr != p) {
#ifdef CONFIG_SMP
- if (tsk_nr_cpus_allowed(p) > 1 && rq->rt.overloaded)
+ if (p->nr_cpus_allowed > 1 && rq->rt.overloaded)
queue_push_tasks(rq);
#endif /* CONFIG_SMP */
if (p->prio < rq->curr->prio)
--
2.7.4
^ permalink raw reply related [flat|nested] 119+ messages in thread
* [PATCH 80/89] sched/headers: Move the <linux/magic.h> include to <linux/sched/task_stack.h>
2017-02-06 13:28 [PATCH 00/89] Major reorganization of <linux/sched.h> Ingo Molnar
` (78 preceding siblings ...)
2017-02-06 13:29 ` [PATCH 79/89] sched/core: Remove the tsk_nr_cpus_allowed() wrapper Ingo Molnar
@ 2017-02-06 13:29 ` Ingo Molnar
2017-02-06 13:29 ` [PATCH 81/89] sched/headers: Remove spurious <linux/sched.h> inclusion dependencies Ingo Molnar
` (10 subsequent siblings)
90 siblings, 0 replies; 119+ messages in thread
From: Ingo Molnar @ 2017-02-06 13:29 UTC (permalink / raw)
To: linux-kernel
Cc: Andrew Morton, Linus Torvalds, Mike Galbraith, Oleg Nesterov,
Peter Zijlstra, Thomas Gleixner
It's not used by any of the scheduler methods, but <linux/sched/task_stack.h>
needs it to pick up STACK_END_MAGIC.
Update files that depended on the magic.h inclusion.
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
drivers/dax/dax.c | 1 +
drivers/virtio/virtio_balloon.c | 1 +
include/linux/sched.h | 1 -
include/linux/sched/task_stack.h | 1 +
mm/zsmalloc.c | 1 +
security/integrity/evm/evm_main.c | 2 ++
6 files changed, 6 insertions(+), 1 deletion(-)
diff --git a/drivers/dax/dax.c b/drivers/dax/dax.c
index ed758b74ddf0..137bf52512e5 100644
--- a/drivers/dax/dax.c
+++ b/drivers/dax/dax.c
@@ -13,6 +13,7 @@
#include <linux/pagemap.h>
#include <linux/module.h>
#include <linux/device.h>
+#include <linux/magic.h>
#include <linux/mount.h>
#include <linux/pfn_t.h>
#include <linux/hash.h>
diff --git a/drivers/virtio/virtio_balloon.c b/drivers/virtio/virtio_balloon.c
index 181793f07852..c13892bc1149 100644
--- a/drivers/virtio/virtio_balloon.c
+++ b/drivers/virtio/virtio_balloon.c
@@ -31,6 +31,7 @@
#include <linux/wait.h>
#include <linux/mm.h>
#include <linux/mount.h>
+#include <linux/magic.h>
/*
* Balloon device works in 4K page units. So each page is pointed to by
diff --git a/include/linux/sched.h b/include/linux/sched.h
index c570e5e35ab2..2b1722205555 100644
--- a/include/linux/sched.h
+++ b/include/linux/sched.h
@@ -21,7 +21,6 @@
#include <linux/task_io_accounting.h>
#include <linux/latencytop.h>
#include <linux/topology.h>
-#include <linux/magic.h>
#include <asm/current.h>
diff --git a/include/linux/sched/task_stack.h b/include/linux/sched/task_stack.h
index d4637d26c067..df6ea6665b31 100644
--- a/include/linux/sched/task_stack.h
+++ b/include/linux/sched/task_stack.h
@@ -6,6 +6,7 @@
*/
#include <linux/sched.h>
+#include <linux/magic.h>
#ifdef CONFIG_THREAD_INFO_IN_TASK
diff --git a/mm/zsmalloc.c b/mm/zsmalloc.c
index 9cc3c0b2c2c1..fde489353c84 100644
--- a/mm/zsmalloc.c
+++ b/mm/zsmalloc.c
@@ -34,6 +34,7 @@
#include <linux/module.h>
#include <linux/kernel.h>
#include <linux/sched.h>
+#include <linux/magic.h>
#include <linux/bitops.h>
#include <linux/errno.h>
#include <linux/highmem.h>
diff --git a/security/integrity/evm/evm_main.c b/security/integrity/evm/evm_main.c
index e2ed498c0f5f..063d38aef64e 100644
--- a/security/integrity/evm/evm_main.c
+++ b/security/integrity/evm/evm_main.c
@@ -22,6 +22,8 @@
#include <linux/xattr.h>
#include <linux/integrity.h>
#include <linux/evm.h>
+#include <linux/magic.h>
+
#include <crypto/hash.h>
#include <crypto/algapi.h>
#include "evm.h"
--
2.7.4
^ permalink raw reply related [flat|nested] 119+ messages in thread
* [PATCH 81/89] sched/headers: Remove spurious <linux/sched.h> inclusion dependencies
2017-02-06 13:28 [PATCH 00/89] Major reorganization of <linux/sched.h> Ingo Molnar
` (79 preceding siblings ...)
2017-02-06 13:29 ` [PATCH 80/89] sched/headers: Move the <linux/magic.h> include to <linux/sched/task_stack.h> Ingo Molnar
@ 2017-02-06 13:29 ` Ingo Molnar
2017-02-06 13:29 ` [PATCH 82/89] rcu: Separate the rcu synchronization types and APIs into <linux/rcupdate_wait.h> Ingo Molnar
` (9 subsequent siblings)
90 siblings, 0 replies; 119+ messages in thread
From: Ingo Molnar @ 2017-02-06 13:29 UTC (permalink / raw)
To: linux-kernel
Cc: Andrew Morton, Linus Torvalds, Mike Galbraith, Oleg Nesterov,
Peter Zijlstra, Thomas Gleixner
In the next couple of patches we are going to remove various headers
from sched.h and other headers that sched.h includes.
To make those patches build cleanly prepare the scene by adding
dependencies to various files that learned to rely on those
to-be-removed dependencies.
These changes all make sense standalone: they add a header for
a data type that a particular .c or .h file is using.
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
drivers/misc/vmw_vmci/vmci_resource.c | 1 +
include/linux/sched.h | 1 +
include/linux/user_namespace.h | 2 ++
include/sound/control.h | 1 +
include/target/target_core_base.h | 1 +
5 files changed, 6 insertions(+)
diff --git a/drivers/misc/vmw_vmci/vmci_resource.c b/drivers/misc/vmw_vmci/vmci_resource.c
index 9a53a30de445..1ab6e8737a5f 100644
--- a/drivers/misc/vmw_vmci/vmci_resource.c
+++ b/drivers/misc/vmw_vmci/vmci_resource.c
@@ -17,6 +17,7 @@
#include <linux/hash.h>
#include <linux/types.h>
#include <linux/rculist.h>
+#include <linux/completion.h>
#include "vmci_resource.h"
#include "vmci_driver.h"
diff --git a/include/linux/sched.h b/include/linux/sched.h
index 2b1722205555..6a8476915979 100644
--- a/include/linux/sched.h
+++ b/include/linux/sched.h
@@ -5,6 +5,7 @@
#include <linux/sched/prio.h>
+#include <linux/mutex.h>
#include <linux/plist.h>
#include <linux/mm_types_task.h>
diff --git a/include/linux/user_namespace.h b/include/linux/user_namespace.h
index 746ee376e603..404f6b44cf2b 100644
--- a/include/linux/user_namespace.h
+++ b/include/linux/user_namespace.h
@@ -5,6 +5,8 @@
#include <linux/nsproxy.h>
#include <linux/ns_common.h>
#include <linux/sched.h>
+#include <linux/workqueue.h>
+#include <linux/rwsem.h>
#include <linux/sysctl.h>
#include <linux/err.h>
diff --git a/include/sound/control.h b/include/sound/control.h
index 21d047f229a1..bd7246de58e7 100644
--- a/include/sound/control.h
+++ b/include/sound/control.h
@@ -22,6 +22,7 @@
*
*/
+#include <linux/wait.h>
#include <sound/asound.h>
#define snd_kcontrol_chip(kcontrol) ((kcontrol)->private_data)
diff --git a/include/target/target_core_base.h b/include/target/target_core_base.h
index 9cc20d60138b..d5d2e3223e6c 100644
--- a/include/target/target_core_base.h
+++ b/include/target/target_core_base.h
@@ -6,6 +6,7 @@
#include <linux/percpu_ida.h> /* struct percpu_ida */
#include <linux/percpu-refcount.h>
#include <linux/semaphore.h> /* struct semaphore */
+#include <linux/completion.h>
#define TARGET_CORE_VERSION "v5.0"
--
2.7.4
^ permalink raw reply related [flat|nested] 119+ messages in thread
* [PATCH 82/89] rcu: Separate the rcu synchronization types and APIs into <linux/rcupdate_wait.h>
2017-02-06 13:28 [PATCH 00/89] Major reorganization of <linux/sched.h> Ingo Molnar
` (80 preceding siblings ...)
2017-02-06 13:29 ` [PATCH 81/89] sched/headers: Remove spurious <linux/sched.h> inclusion dependencies Ingo Molnar
@ 2017-02-06 13:29 ` Ingo Molnar
2017-02-06 13:29 ` [PATCH 83/89] timers: Remove the <linux/sysctl.h> include from <linux/timer.h> Ingo Molnar
` (8 subsequent siblings)
90 siblings, 0 replies; 119+ messages in thread
From: Ingo Molnar @ 2017-02-06 13:29 UTC (permalink / raw)
To: linux-kernel
Cc: Andrew Morton, Linus Torvalds, Mike Galbraith, Oleg Nesterov,
Peter Zijlstra, Thomas Gleixner
So rcupdate.h is a pretty complex header, in particular it includes
<linux/completion.h> which includes <linux/wait.h> - creating a
dependency that includes <linux/wait.h> in <linux/sched.h>,
which prevents the isolation of <linux/sched.h> from the derived
<linux/wait.h> header.
Solve part of the problem by decoupling rcupdate.h from completions:
this can be done by separating out the rcu_synchronize types and APIs,
and updating their usage sites.
Since this is a mostly RCU-internal types this will not just simplify
<linux/sched.h>'s dependencies, but will make all the hundreds of
.c files that include rcupdate.h but not completions or wait.h build
faster.
( For rcutiny this means that two dependent APIs have to be uninlined,
but that shouldn't be much of a problem as they are rare variants. )
Cc: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
fs/autofs4/autofs_i.h | 1 +
include/linux/dcache.h | 1 +
include/linux/rcupdate.h | 40 ----------------------------------------
include/linux/rcupdate_wait.h | 50 ++++++++++++++++++++++++++++++++++++++++++++++++++
include/linux/rcutiny.h | 11 ++---------
kernel/rcu/srcu.c | 2 +-
kernel/rcu/tiny.c | 14 +++++++++++++-
kernel/rcu/tree.c | 2 +-
kernel/rcu/update.c | 1 +
kernel/sched/core.c | 1 +
10 files changed, 71 insertions(+), 52 deletions(-)
diff --git a/fs/autofs4/autofs_i.h b/fs/autofs4/autofs_i.h
index c885daae68c8..beef981aa54f 100644
--- a/fs/autofs4/autofs_i.h
+++ b/fs/autofs4/autofs_i.h
@@ -14,6 +14,7 @@
#include <linux/mutex.h>
#include <linux/spinlock.h>
#include <linux/list.h>
+#include <linux/completion.h>
/* This is the range of ioctl() numbers we claim as ours */
#define AUTOFS_IOC_FIRST AUTOFS_IOC_READY
diff --git a/include/linux/dcache.h b/include/linux/dcache.h
index c965e4469499..16948defb568 100644
--- a/include/linux/dcache.h
+++ b/include/linux/dcache.h
@@ -11,6 +11,7 @@
#include <linux/rcupdate.h>
#include <linux/lockref.h>
#include <linux/stringhash.h>
+#include <linux/wait.h>
struct path;
struct vfsmount;
diff --git a/include/linux/rcupdate.h b/include/linux/rcupdate.h
index 01f71e1d2e94..1f476b63c596 100644
--- a/include/linux/rcupdate.h
+++ b/include/linux/rcupdate.h
@@ -40,7 +40,6 @@
#include <linux/cpumask.h>
#include <linux/seqlock.h>
#include <linux/lockdep.h>
-#include <linux/completion.h>
#include <linux/debugobjects.h>
#include <linux/bug.h>
#include <linux/compiler.h>
@@ -226,45 +225,6 @@ void call_rcu_sched(struct rcu_head *head,
void synchronize_sched(void);
-/*
- * Structure allowing asynchronous waiting on RCU.
- */
-struct rcu_synchronize {
- struct rcu_head head;
- struct completion completion;
-};
-void wakeme_after_rcu(struct rcu_head *head);
-
-void __wait_rcu_gp(bool checktiny, int n, call_rcu_func_t *crcu_array,
- struct rcu_synchronize *rs_array);
-
-#define _wait_rcu_gp(checktiny, ...) \
-do { \
- call_rcu_func_t __crcu_array[] = { __VA_ARGS__ }; \
- struct rcu_synchronize __rs_array[ARRAY_SIZE(__crcu_array)]; \
- __wait_rcu_gp(checktiny, ARRAY_SIZE(__crcu_array), \
- __crcu_array, __rs_array); \
-} while (0)
-
-#define wait_rcu_gp(...) _wait_rcu_gp(false, __VA_ARGS__)
-
-/**
- * synchronize_rcu_mult - Wait concurrently for multiple grace periods
- * @...: List of call_rcu() functions for the flavors to wait on.
- *
- * This macro waits concurrently for multiple flavors of RCU grace periods.
- * For example, synchronize_rcu_mult(call_rcu, call_rcu_bh) would wait
- * on concurrent RCU and RCU-bh grace periods. Waiting on a give SRCU
- * domain requires you to write a wrapper function for that SRCU domain's
- * call_srcu() function, supplying the corresponding srcu_struct.
- *
- * If Tiny RCU, tell _wait_rcu_gp() not to bother waiting for RCU
- * or RCU-bh, given that anywhere synchronize_rcu_mult() can be called
- * is automatically a grace period.
- */
-#define synchronize_rcu_mult(...) \
- _wait_rcu_gp(IS_ENABLED(CONFIG_TINY_RCU), __VA_ARGS__)
-
/**
* call_rcu_tasks() - Queue an RCU for invocation task-based grace period
* @head: structure to be used for queueing the RCU updates.
diff --git a/include/linux/rcupdate_wait.h b/include/linux/rcupdate_wait.h
new file mode 100644
index 000000000000..e774b4f5f220
--- /dev/null
+++ b/include/linux/rcupdate_wait.h
@@ -0,0 +1,50 @@
+#ifndef _LINUX_SCHED_RCUPDATE_WAIT_H
+#define _LINUX_SCHED_RCUPDATE_WAIT_H
+
+/*
+ * RCU synchronization types and methods:
+ */
+
+#include <linux/rcupdate.h>
+#include <linux/completion.h>
+
+/*
+ * Structure allowing asynchronous waiting on RCU.
+ */
+struct rcu_synchronize {
+ struct rcu_head head;
+ struct completion completion;
+};
+void wakeme_after_rcu(struct rcu_head *head);
+
+void __wait_rcu_gp(bool checktiny, int n, call_rcu_func_t *crcu_array,
+ struct rcu_synchronize *rs_array);
+
+#define _wait_rcu_gp(checktiny, ...) \
+do { \
+ call_rcu_func_t __crcu_array[] = { __VA_ARGS__ }; \
+ struct rcu_synchronize __rs_array[ARRAY_SIZE(__crcu_array)]; \
+ __wait_rcu_gp(checktiny, ARRAY_SIZE(__crcu_array), \
+ __crcu_array, __rs_array); \
+} while (0)
+
+#define wait_rcu_gp(...) _wait_rcu_gp(false, __VA_ARGS__)
+
+/**
+ * synchronize_rcu_mult - Wait concurrently for multiple grace periods
+ * @...: List of call_rcu() functions for the flavors to wait on.
+ *
+ * This macro waits concurrently for multiple flavors of RCU grace periods.
+ * For example, synchronize_rcu_mult(call_rcu, call_rcu_bh) would wait
+ * on concurrent RCU and RCU-bh grace periods. Waiting on a give SRCU
+ * domain requires you to write a wrapper function for that SRCU domain's
+ * call_srcu() function, supplying the corresponding srcu_struct.
+ *
+ * If Tiny RCU, tell _wait_rcu_gp() not to bother waiting for RCU
+ * or RCU-bh, given that anywhere synchronize_rcu_mult() can be called
+ * is automatically a grace period.
+ */
+#define synchronize_rcu_mult(...) \
+ _wait_rcu_gp(IS_ENABLED(CONFIG_TINY_RCU), __VA_ARGS__)
+
+#endif /* _LINUX_SCHED_RCUPDATE_WAIT_H */
diff --git a/include/linux/rcutiny.h b/include/linux/rcutiny.h
index ac81e4063b40..861ab86ae302 100644
--- a/include/linux/rcutiny.h
+++ b/include/linux/rcutiny.h
@@ -47,15 +47,8 @@ static inline void cond_synchronize_sched(unsigned long oldstate)
might_sleep();
}
-static inline void rcu_barrier_bh(void)
-{
- wait_rcu_gp(call_rcu_bh);
-}
-
-static inline void rcu_barrier_sched(void)
-{
- wait_rcu_gp(call_rcu_sched);
-}
+extern void rcu_barrier_bh(void);
+extern void rcu_barrier_sched(void);
static inline void synchronize_rcu_expedited(void)
{
diff --git a/kernel/rcu/srcu.c b/kernel/rcu/srcu.c
index 9b9cdd549caa..c05855490b54 100644
--- a/kernel/rcu/srcu.c
+++ b/kernel/rcu/srcu.c
@@ -30,7 +30,7 @@
#include <linux/mutex.h>
#include <linux/percpu.h>
#include <linux/preempt.h>
-#include <linux/rcupdate.h>
+#include <linux/rcupdate_wait.h>
#include <linux/sched.h>
#include <linux/smp.h>
#include <linux/delay.h>
diff --git a/kernel/rcu/tiny.c b/kernel/rcu/tiny.c
index b23a4d076f3d..55770f10342e 100644
--- a/kernel/rcu/tiny.c
+++ b/kernel/rcu/tiny.c
@@ -25,7 +25,7 @@
#include <linux/completion.h>
#include <linux/interrupt.h>
#include <linux/notifier.h>
-#include <linux/rcupdate.h>
+#include <linux/rcupdate_wait.h>
#include <linux/kernel.h>
#include <linux/export.h>
#include <linux/mutex.h>
@@ -49,6 +49,18 @@ static void __call_rcu(struct rcu_head *head,
#include "tiny_plugin.h"
+void rcu_barrier_bh(void)
+{
+ wait_rcu_gp(call_rcu_bh);
+}
+EXPORT_SYMBOL(rcu_barrier_bh);
+
+void rcu_barrier_sched(void)
+{
+ wait_rcu_gp(call_rcu_sched);
+}
+EXPORT_SYMBOL(rcu_barrier_sched);
+
#if defined(CONFIG_DEBUG_LOCK_ALLOC) || defined(CONFIG_RCU_TRACE)
/*
diff --git a/kernel/rcu/tree.c b/kernel/rcu/tree.c
index c37db7b626c8..7804075599dc 100644
--- a/kernel/rcu/tree.c
+++ b/kernel/rcu/tree.c
@@ -32,7 +32,7 @@
#include <linux/init.h>
#include <linux/spinlock.h>
#include <linux/smp.h>
-#include <linux/rcupdate.h>
+#include <linux/rcupdate_wait.h>
#include <linux/interrupt.h>
#include <linux/sched.h>
#include <linux/sched/debug.h>
diff --git a/kernel/rcu/update.c b/kernel/rcu/update.c
index 2fe8e2582309..7685adecf5ec 100644
--- a/kernel/rcu/update.c
+++ b/kernel/rcu/update.c
@@ -50,6 +50,7 @@
#include <linux/moduleparam.h>
#include <linux/kthread.h>
#include <linux/tick.h>
+#include <linux/rcupdate_wait.h>
#define CREATE_TRACE_POINTS
diff --git a/kernel/sched/core.c b/kernel/sched/core.c
index 9f3f8c2b6046..e65485d0fa24 100644
--- a/kernel/sched/core.c
+++ b/kernel/sched/core.c
@@ -15,6 +15,7 @@
#include <linux/delayacct.h>
#include <linux/init_task.h>
#include <linux/context_tracking.h>
+#include <linux/rcupdate_wait.h>
#include <linux/blkdev.h>
#include <linux/kprobes.h>
--
2.7.4
^ permalink raw reply related [flat|nested] 119+ messages in thread
* [PATCH 83/89] timers: Remove the <linux/sysctl.h> include from <linux/timer.h>
2017-02-06 13:28 [PATCH 00/89] Major reorganization of <linux/sched.h> Ingo Molnar
` (81 preceding siblings ...)
2017-02-06 13:29 ` [PATCH 82/89] rcu: Separate the rcu synchronization types and APIs into <linux/rcupdate_wait.h> Ingo Molnar
@ 2017-02-06 13:29 ` Ingo Molnar
2017-02-06 13:29 ` [PATCH 84/89] x86/apic: Remove the <linux/pm.h> header inclusion from <asm/apic.h> Ingo Molnar
` (7 subsequent siblings)
90 siblings, 0 replies; 119+ messages in thread
From: Ingo Molnar @ 2017-02-06 13:29 UTC (permalink / raw)
To: linux-kernel
Cc: Andrew Morton, Linus Torvalds, Mike Galbraith, Oleg Nesterov,
Peter Zijlstra, Thomas Gleixner
So we want to simplify <linux/sched.h>'s header dependencies, but one
roadblock of that is <linux/timer.h>'s inclusion of sysctl.h,
which brings in other, problematic headers.
Note that timer.h's inclusion of sysctl.h can be avoided if we
pre-declare ctl_table - so do that.
Also update usage sites that depended on the inclusion of sysctl.h
(or one of the headers included by sysctl.h).
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
include/linux/timer.h | 2 +-
kernel/utsname_sysctl.c | 1 +
2 files changed, 2 insertions(+), 1 deletion(-)
diff --git a/include/linux/timer.h b/include/linux/timer.h
index 51d601f192d4..6594ca6feb68 100644
--- a/include/linux/timer.h
+++ b/include/linux/timer.h
@@ -255,7 +255,7 @@ struct hrtimer;
extern enum hrtimer_restart it_real_fn(struct hrtimer *);
#if defined(CONFIG_SMP) && defined(CONFIG_NO_HZ_COMMON)
-#include <linux/sysctl.h>
+struct ctl_table;
extern unsigned int sysctl_timer_migration;
int timer_migration_handler(struct ctl_table *table, int write,
diff --git a/kernel/utsname_sysctl.c b/kernel/utsname_sysctl.c
index c8eac43267e9..233cd8fc6910 100644
--- a/kernel/utsname_sysctl.c
+++ b/kernel/utsname_sysctl.c
@@ -14,6 +14,7 @@
#include <linux/utsname.h>
#include <linux/sysctl.h>
#include <linux/wait.h>
+#include <linux/rwsem.h>
#ifdef CONFIG_PROC_SYSCTL
--
2.7.4
^ permalink raw reply related [flat|nested] 119+ messages in thread
* [PATCH 84/89] x86/apic: Remove the <linux/pm.h> header inclusion from <asm/apic.h>
2017-02-06 13:28 [PATCH 00/89] Major reorganization of <linux/sched.h> Ingo Molnar
` (82 preceding siblings ...)
2017-02-06 13:29 ` [PATCH 83/89] timers: Remove the <linux/sysctl.h> include from <linux/timer.h> Ingo Molnar
@ 2017-02-06 13:29 ` Ingo Molnar
2017-02-06 13:33 ` [PATCH 85/89] hrtimer: Remove the <linux/wait.h> include from <linux/hrtimer.h> Ingo Molnar
` (6 subsequent siblings)
90 siblings, 0 replies; 119+ messages in thread
From: Ingo Molnar @ 2017-02-06 13:29 UTC (permalink / raw)
To: linux-kernel
Cc: Andrew Morton, Linus Torvalds, Mike Galbraith, Oleg Nesterov,
Peter Zijlstra, Thomas Gleixner
We want to simplify <linux/sched.h>'s header dependencies, but one
roadblock to that is <asm/apic.h>'s inclusion of pm.h,
which brings in other, problematic headers.
Remove it, as it appears to be entirely spurious, apic.h does not
actually make use of any PM facilities.
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
arch/x86/include/asm/apic.h | 1 -
1 file changed, 1 deletion(-)
diff --git a/arch/x86/include/asm/apic.h b/arch/x86/include/asm/apic.h
index 0c5fbc68e82d..95111dcd1283 100644
--- a/arch/x86/include/asm/apic.h
+++ b/arch/x86/include/asm/apic.h
@@ -2,7 +2,6 @@
#define _ASM_X86_APIC_H
#include <linux/cpumask.h>
-#include <linux/pm.h>
#include <asm/alternative.h>
#include <asm/cpufeature.h>
--
2.7.4
^ permalink raw reply related [flat|nested] 119+ messages in thread
* [PATCH 85/89] hrtimer: Remove the <linux/wait.h> include from <linux/hrtimer.h>
2017-02-06 13:28 [PATCH 00/89] Major reorganization of <linux/sched.h> Ingo Molnar
` (83 preceding siblings ...)
2017-02-06 13:29 ` [PATCH 84/89] x86/apic: Remove the <linux/pm.h> header inclusion from <asm/apic.h> Ingo Molnar
@ 2017-02-06 13:33 ` Ingo Molnar
2017-02-06 13:34 ` [PATCH 86/89] sched/headers: Remove the <linux/topology.h> include from <linux/sched.h> Ingo Molnar
` (5 subsequent siblings)
90 siblings, 0 replies; 119+ messages in thread
From: Ingo Molnar @ 2017-02-06 13:33 UTC (permalink / raw)
To: linux-kernel
Cc: Andrew Morton, Linus Torvalds, Mike Galbraith, Oleg Nesterov,
Peter Zijlstra, Thomas Gleixner
In our quest to simplify <linux/sched.h>'s header dependencies, remove
the <linux/wait.h> inclusion from <linux/hrtimer.h> - which does
not appear to be necessary, as hrtimer.h does not use waitqueues.
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
include/linux/hrtimer.h | 1 -
1 file changed, 1 deletion(-)
diff --git a/include/linux/hrtimer.h b/include/linux/hrtimer.h
index cdab81ba29f8..d0a97bebfbd6 100644
--- a/include/linux/hrtimer.h
+++ b/include/linux/hrtimer.h
@@ -19,7 +19,6 @@
#include <linux/ktime.h>
#include <linux/init.h>
#include <linux/list.h>
-#include <linux/wait.h>
#include <linux/percpu.h>
#include <linux/timer.h>
#include <linux/timerqueue.h>
--
2.7.4
^ permalink raw reply related [flat|nested] 119+ messages in thread
* [PATCH 86/89] sched/headers: Remove the <linux/topology.h> include from <linux/sched.h>
2017-02-06 13:28 [PATCH 00/89] Major reorganization of <linux/sched.h> Ingo Molnar
` (84 preceding siblings ...)
2017-02-06 13:33 ` [PATCH 85/89] hrtimer: Remove the <linux/wait.h> include from <linux/hrtimer.h> Ingo Molnar
@ 2017-02-06 13:34 ` Ingo Molnar
2017-02-06 13:34 ` [PATCH 87/89] sched/headers: Move the sched_exec() prototype to <linux/sched/task.h> Ingo Molnar
` (4 subsequent siblings)
90 siblings, 0 replies; 119+ messages in thread
From: Ingo Molnar @ 2017-02-06 13:34 UTC (permalink / raw)
To: linux-kernel
Cc: Andrew Morton, Linus Torvalds, Mike Galbraith, Oleg Nesterov,
Peter Zijlstra, Thomas Gleixner
It's used only by a single (rarely used) inline function (task_node(p)),
which we can move to <linux/sched/topology.h>.
( Add <linux/nodemask.h>, because we rely on that. )
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
include/linux/sched.h | 7 +------
include/linux/sched/topology.h | 7 +++++++
2 files changed, 8 insertions(+), 6 deletions(-)
diff --git a/include/linux/sched.h b/include/linux/sched.h
index 6a8476915979..f541a57a4b74 100644
--- a/include/linux/sched.h
+++ b/include/linux/sched.h
@@ -4,6 +4,7 @@
#include <uapi/linux/sched.h>
#include <linux/sched/prio.h>
+#include <linux/nodemask.h>
#include <linux/mutex.h>
#include <linux/plist.h>
@@ -21,7 +22,6 @@
#include <linux/kcov.h>
#include <linux/task_io_accounting.h>
#include <linux/latencytop.h>
-#include <linux/topology.h>
#include <asm/current.h>
@@ -1455,11 +1455,6 @@ static inline unsigned int task_cpu(const struct task_struct *p)
#endif
}
-static inline int task_node(const struct task_struct *p)
-{
- return cpu_to_node(task_cpu(p));
-}
-
extern void set_task_cpu(struct task_struct *p, unsigned int cpu);
#else
diff --git a/include/linux/sched/topology.h b/include/linux/sched/topology.h
index 0d6fceff37bb..7d065abc7a47 100644
--- a/include/linux/sched/topology.h
+++ b/include/linux/sched/topology.h
@@ -1,6 +1,8 @@
#ifndef _LINUX_SCHED_TOPOLOGY_H
#define _LINUX_SCHED_TOPOLOGY_H
+#include <linux/topology.h>
+
#include <linux/sched/idle.h>
/*
@@ -216,4 +218,9 @@ static inline bool cpus_share_cache(int this_cpu, int that_cpu)
#endif /* !CONFIG_SMP */
+static inline int task_node(const struct task_struct *p)
+{
+ return cpu_to_node(task_cpu(p));
+}
+
#endif /* _LINUX_SCHED_TOPOLOGY_H */
--
2.7.4
^ permalink raw reply related [flat|nested] 119+ messages in thread
* [PATCH 87/89] sched/headers: Move the sched_exec() prototype to <linux/sched/task.h>
2017-02-06 13:28 [PATCH 00/89] Major reorganization of <linux/sched.h> Ingo Molnar
` (85 preceding siblings ...)
2017-02-06 13:34 ` [PATCH 86/89] sched/headers: Remove the <linux/topology.h> include from <linux/sched.h> Ingo Molnar
@ 2017-02-06 13:34 ` Ingo Molnar
2017-02-06 13:35 ` [PATCH 88/89] sched/headers: Remove #ifdefs from <linux/sched.h> Ingo Molnar
` (3 subsequent siblings)
90 siblings, 0 replies; 119+ messages in thread
From: Ingo Molnar @ 2017-02-06 13:34 UTC (permalink / raw)
To: linux-kernel
Cc: Andrew Morton, Linus Torvalds, Mike Galbraith, Oleg Nesterov,
Peter Zijlstra, Thomas Gleixner
sched_exec() better fits into the task lifetime APIs than into the core scheduler
APIs.
This reduces the size of <linux/sched.h> a bit.
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
include/linux/sched.h | 7 -------
include/linux/sched/task.h | 7 +++++++
2 files changed, 7 insertions(+), 7 deletions(-)
diff --git a/include/linux/sched.h b/include/linux/sched.h
index f541a57a4b74..e2e4c7b85e1a 100644
--- a/include/linux/sched.h
+++ b/include/linux/sched.h
@@ -1234,13 +1234,6 @@ static inline int set_cpus_allowed_ptr(struct task_struct *p,
#define cpu_relax_yield() cpu_relax()
#endif
-/* sched_exec is called by processes performing an exec */
-#ifdef CONFIG_SMP
-extern void sched_exec(void);
-#else
-#define sched_exec() {}
-#endif
-
extern int yield_to(struct task_struct *p, bool preempt);
extern void set_user_nice(struct task_struct *p, long nice);
extern int task_prio(const struct task_struct *p);
diff --git a/include/linux/sched/task.h b/include/linux/sched/task.h
index 61fafba43833..ecd3c6b414a2 100644
--- a/include/linux/sched/task.h
+++ b/include/linux/sched/task.h
@@ -77,6 +77,13 @@ extern pid_t kernel_thread(int (*fn)(void *), void *arg, unsigned long flags);
extern void free_task(struct task_struct *tsk);
+/* sched_exec is called by processes performing an exec */
+#ifdef CONFIG_SMP
+extern void sched_exec(void);
+#else
+#define sched_exec() {}
+#endif
+
#define get_task_struct(tsk) do { atomic_inc(&(tsk)->usage); } while(0)
extern void __put_task_struct(struct task_struct *t);
--
2.7.4
^ permalink raw reply related [flat|nested] 119+ messages in thread
* [PATCH 88/89] sched/headers: Remove #ifdefs from <linux/sched.h>
2017-02-06 13:28 [PATCH 00/89] Major reorganization of <linux/sched.h> Ingo Molnar
` (86 preceding siblings ...)
2017-02-06 13:34 ` [PATCH 87/89] sched/headers: Move the sched_exec() prototype to <linux/sched/task.h> Ingo Molnar
@ 2017-02-06 13:35 ` Ingo Molnar
2017-02-06 21:26 ` Linus Torvalds
2017-02-06 13:36 ` [PATCH 89/89] sched/headers: Clean up <linux/sched.h> Ingo Molnar
` (2 subsequent siblings)
90 siblings, 1 reply; 119+ messages in thread
From: Ingo Molnar @ 2017-02-06 13:35 UTC (permalink / raw)
To: linux-kernel
Cc: Andrew Morton, Linus Torvalds, Mike Galbraith, Oleg Nesterov,
Peter Zijlstra, Thomas Gleixner
We can remove two pairs of #ifdefs by defining structures in a smarter way.
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
include/linux/sched.h | 12 ++++--------
1 file changed, 4 insertions(+), 8 deletions(-)
diff --git a/include/linux/sched.h b/include/linux/sched.h
index e2e4c7b85e1a..e59686ce0bfd 100644
--- a/include/linux/sched.h
+++ b/include/linux/sched.h
@@ -224,8 +224,8 @@ struct task_cputime {
#define prof_exp stime
#define sched_exp sum_exec_runtime
-#ifdef CONFIG_SCHED_INFO
struct sched_info {
+#ifdef CONFIG_SCHED_INFO
/* cumulative counters */
unsigned long pcount; /* # of times run on this cpu */
unsigned long long run_delay; /* time spent waiting on a runqueue */
@@ -233,8 +233,8 @@ struct sched_info {
/* timestamps */
unsigned long long last_arrival,/* when we last ran on a cpu */
last_queued; /* when we were last queued to run */
-};
#endif /* CONFIG_SCHED_INFO */
+};
/*
* Integer metrics need fixed point arithmetic, e.g., sched/fair
@@ -309,8 +309,8 @@ struct sched_avg {
unsigned long load_avg, util_avg;
};
-#ifdef CONFIG_SCHEDSTATS
struct sched_statistics {
+#ifdef CONFIG_SCHEDSTATS
u64 wait_start;
u64 wait_max;
u64 wait_count;
@@ -342,8 +342,8 @@ struct sched_statistics {
u64 nr_wakeups_affine_attempts;
u64 nr_wakeups_passive;
u64 nr_wakeups_idle;
-};
#endif
+};
struct sched_entity {
struct load_weight load; /* for load-balancing */
@@ -358,9 +358,7 @@ struct sched_entity {
u64 nr_migrations;
-#ifdef CONFIG_SCHEDSTATS
struct sched_statistics statistics;
-#endif
#ifdef CONFIG_FAIR_GROUP_SCHED
int depth;
@@ -526,9 +524,7 @@ struct task_struct {
int rcu_tasks_idle_cpu;
#endif /* #ifdef CONFIG_TASKS_RCU */
-#ifdef CONFIG_SCHED_INFO
struct sched_info sched_info;
-#endif
struct list_head tasks;
#ifdef CONFIG_SMP
--
2.7.4
^ permalink raw reply related [flat|nested] 119+ messages in thread
* [PATCH 89/89] sched/headers: Clean up <linux/sched.h>
2017-02-06 13:28 [PATCH 00/89] Major reorganization of <linux/sched.h> Ingo Molnar
` (87 preceding siblings ...)
2017-02-06 13:35 ` [PATCH 88/89] sched/headers: Remove #ifdefs from <linux/sched.h> Ingo Molnar
@ 2017-02-06 13:36 ` Ingo Molnar
2017-02-06 13:39 ` [PATCH 00/89] Major reorganization of <linux/sched.h> Ingo Molnar
2017-02-06 21:31 ` Linus Torvalds
90 siblings, 0 replies; 119+ messages in thread
From: Ingo Molnar @ 2017-02-06 13:36 UTC (permalink / raw)
To: linux-kernel
Cc: Andrew Morton, Linus Torvalds, Mike Galbraith, Oleg Nesterov,
Peter Zijlstra, Thomas Gleixner
Now that <linux/sched.h> dependencies have been sorted out,
do various trivial cleanups:
- remove unnecessary structure predeclarations
- fix various typos
- update comments where necessary
- remove pointless comments
- use consistent types
- tabulate consistently
- use a consistent comment style
- clean up the header section a bit
- use a consistent style of a single field per line
- remove line-breaks where they make the code look worse
- etc ...
No change in functionality.
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
include/linux/sched.h | 1224 +++++++++++++++++++++++++++++++++++++--------------------------------
1 file changed, 652 insertions(+), 572 deletions(-)
diff --git a/include/linux/sched.h b/include/linux/sched.h
index e59686ce0bfd..92e3321d9269 100644
--- a/include/linux/sched.h
+++ b/include/linux/sched.h
@@ -1,38 +1,38 @@
#ifndef _LINUX_SCHED_H
#define _LINUX_SCHED_H
-#include <uapi/linux/sched.h>
+/*
+ * Define 'struct task_struct' and provide the main scheduler
+ * APIs (schedule(), wakeup variants, etc.)
+ */
-#include <linux/sched/prio.h>
-#include <linux/nodemask.h>
+#include <uapi/linux/sched.h>
-#include <linux/mutex.h>
-#include <linux/plist.h>
-#include <linux/mm_types_task.h>
+#include <asm/current.h>
+#include <linux/pid.h>
#include <linux/sem.h>
#include <linux/shm.h>
-#include <linux/signal_types.h>
-#include <linux/pid.h>
+#include <linux/kcov.h>
+#include <linux/mutex.h>
+#include <linux/plist.h>
+#include <linux/hrtimer.h>
#include <linux/seccomp.h>
+#include <linux/nodemask.h>
#include <linux/rcupdate.h>
-
#include <linux/resource.h>
-#include <linux/hrtimer.h>
-#include <linux/kcov.h>
-#include <linux/task_io_accounting.h>
#include <linux/latencytop.h>
+#include <linux/sched/prio.h>
+#include <linux/signal_types.h>
+#include <linux/mm_types_task.h>
+#include <linux/task_io_accounting.h>
-#include <asm/current.h>
-
-/* task_struct member predeclarations: */
+/* task_struct member predeclarations (sorted alphabetically): */
struct audit_context;
-struct autogroup;
struct backing_dev_info;
struct bio_list;
struct blk_plug;
struct cfs_rq;
-struct filename;
struct fs_struct;
struct futex_pi_state;
struct io_context;
@@ -52,8 +52,6 @@ struct sighand_struct;
struct signal_struct;
struct task_delay_info;
struct task_group;
-struct task_struct;
-struct uts_namespace;
/*
* Task state bitmask. NOTE! These bits are also
@@ -65,50 +63,53 @@ struct uts_namespace;
* modifying one set can't modify the other one by
* mistake.
*/
-#define TASK_RUNNING 0
-#define TASK_INTERRUPTIBLE 1
-#define TASK_UNINTERRUPTIBLE 2
-#define __TASK_STOPPED 4
-#define __TASK_TRACED 8
-/* in tsk->exit_state */
-#define EXIT_DEAD 16
-#define EXIT_ZOMBIE 32
-#define EXIT_TRACE (EXIT_ZOMBIE | EXIT_DEAD)
-/* in tsk->state again */
-#define TASK_DEAD 64
-#define TASK_WAKEKILL 128
-#define TASK_WAKING 256
-#define TASK_PARKED 512
-#define TASK_NOLOAD 1024
-#define TASK_NEW 2048
-#define TASK_STATE_MAX 4096
-
-#define TASK_STATE_TO_CHAR_STR "RSDTtXZxKWPNn"
-
-/* Convenience macros for the sake of set_current_state */
-#define TASK_KILLABLE (TASK_WAKEKILL | TASK_UNINTERRUPTIBLE)
-#define TASK_STOPPED (TASK_WAKEKILL | __TASK_STOPPED)
-#define TASK_TRACED (TASK_WAKEKILL | __TASK_TRACED)
-
-#define TASK_IDLE (TASK_UNINTERRUPTIBLE | TASK_NOLOAD)
-
-/* Convenience macros for the sake of wake_up */
-#define TASK_NORMAL (TASK_INTERRUPTIBLE | TASK_UNINTERRUPTIBLE)
-#define TASK_ALL (TASK_NORMAL | __TASK_STOPPED | __TASK_TRACED)
-
-/* get_task_state() */
-#define TASK_REPORT (TASK_RUNNING | TASK_INTERRUPTIBLE | \
- TASK_UNINTERRUPTIBLE | __TASK_STOPPED | \
- __TASK_TRACED | EXIT_ZOMBIE | EXIT_DEAD)
-
-#define task_is_traced(task) ((task->state & __TASK_TRACED) != 0)
-#define task_is_stopped(task) ((task->state & __TASK_STOPPED) != 0)
-#define task_is_stopped_or_traced(task) \
- ((task->state & (__TASK_STOPPED | __TASK_TRACED)) != 0)
-#define task_contributes_to_load(task) \
- ((task->state & TASK_UNINTERRUPTIBLE) != 0 && \
- (task->flags & PF_FROZEN) == 0 && \
- (task->state & TASK_NOLOAD) == 0)
+
+/* Used in tsk->state: */
+#define TASK_RUNNING 0
+#define TASK_INTERRUPTIBLE 1
+#define TASK_UNINTERRUPTIBLE 2
+#define __TASK_STOPPED 4
+#define __TASK_TRACED 8
+/* Used in tsk->exit_state: */
+#define EXIT_DEAD 16
+#define EXIT_ZOMBIE 32
+#define EXIT_TRACE (EXIT_ZOMBIE | EXIT_DEAD)
+/* Used in tsk->state again: */
+#define TASK_DEAD 64
+#define TASK_WAKEKILL 128
+#define TASK_WAKING 256
+#define TASK_PARKED 512
+#define TASK_NOLOAD 1024
+#define TASK_NEW 2048
+#define TASK_STATE_MAX 4096
+
+#define TASK_STATE_TO_CHAR_STR "RSDTtXZxKWPNn"
+
+/* Convenience macros for the sake of set_current_state: */
+#define TASK_KILLABLE (TASK_WAKEKILL | TASK_UNINTERRUPTIBLE)
+#define TASK_STOPPED (TASK_WAKEKILL | __TASK_STOPPED)
+#define TASK_TRACED (TASK_WAKEKILL | __TASK_TRACED)
+
+#define TASK_IDLE (TASK_UNINTERRUPTIBLE | TASK_NOLOAD)
+
+/* Convenience macros for the sake of wake_up(): */
+#define TASK_NORMAL (TASK_INTERRUPTIBLE | TASK_UNINTERRUPTIBLE)
+#define TASK_ALL (TASK_NORMAL | __TASK_STOPPED | __TASK_TRACED)
+
+/* get_task_state(): */
+#define TASK_REPORT (TASK_RUNNING | TASK_INTERRUPTIBLE | \
+ TASK_UNINTERRUPTIBLE | __TASK_STOPPED | \
+ __TASK_TRACED | EXIT_ZOMBIE | EXIT_DEAD)
+
+#define task_is_traced(task) ((task->state & __TASK_TRACED) != 0)
+
+#define task_is_stopped(task) ((task->state & __TASK_STOPPED) != 0)
+
+#define task_is_stopped_or_traced(task) ((task->state & (__TASK_STOPPED | __TASK_TRACED)) != 0)
+
+#define task_contributes_to_load(task) ((task->state & TASK_UNINTERRUPTIBLE) != 0 && \
+ (task->flags & PF_FROZEN) == 0 && \
+ (task->state & TASK_NOLOAD) == 0)
#ifdef CONFIG_DEBUG_ATOMIC_SLEEP
@@ -158,26 +159,24 @@ struct uts_namespace;
*
* Also see the comments of try_to_wake_up().
*/
-#define __set_current_state(state_value) \
- do { current->state = (state_value); } while (0)
-#define set_current_state(state_value) \
- smp_store_mb(current->state, (state_value))
-
+#define __set_current_state(state_value) do { current->state = (state_value); } while (0)
+#define set_current_state(state_value) smp_store_mb(current->state, (state_value))
#endif
-/* Task command name length */
-#define TASK_COMM_LEN 16
+/* Task command name length: */
+#define TASK_COMM_LEN 16
-extern cpumask_var_t cpu_isolated_map;
+extern cpumask_var_t cpu_isolated_map;
extern void scheduler_tick(void);
-#define MAX_SCHEDULE_TIMEOUT LONG_MAX
-extern signed long schedule_timeout(signed long timeout);
-extern signed long schedule_timeout_interruptible(signed long timeout);
-extern signed long schedule_timeout_killable(signed long timeout);
-extern signed long schedule_timeout_uninterruptible(signed long timeout);
-extern signed long schedule_timeout_idle(signed long timeout);
+#define MAX_SCHEDULE_TIMEOUT LONG_MAX
+
+extern long schedule_timeout(long timeout);
+extern long schedule_timeout_interruptible(long timeout);
+extern long schedule_timeout_killable(long timeout);
+extern long schedule_timeout_uninterruptible(long timeout);
+extern long schedule_timeout_idle(long timeout);
asmlinkage void schedule(void);
extern void schedule_preempt_disabled(void);
@@ -197,9 +196,9 @@ extern void io_schedule(void);
*/
struct prev_cputime {
#ifndef CONFIG_VIRT_CPU_ACCOUNTING_NATIVE
- u64 utime;
- u64 stime;
- raw_spinlock_t lock;
+ u64 utime;
+ u64 stime;
+ raw_spinlock_t lock;
#endif
};
@@ -214,25 +213,34 @@ struct prev_cputime {
* these counts together and treat all three of them in parallel.
*/
struct task_cputime {
- u64 utime;
- u64 stime;
- unsigned long long sum_exec_runtime;
+ u64 utime;
+ u64 stime;
+ unsigned long long sum_exec_runtime;
};
-/* Alternate field names when used to cache expirations. */
-#define virt_exp utime
-#define prof_exp stime
-#define sched_exp sum_exec_runtime
+/* Alternate field names when used on cache expirations: */
+#define virt_exp utime
+#define prof_exp stime
+#define sched_exp sum_exec_runtime
struct sched_info {
#ifdef CONFIG_SCHED_INFO
- /* cumulative counters */
- unsigned long pcount; /* # of times run on this cpu */
- unsigned long long run_delay; /* time spent waiting on a runqueue */
+ /* Cumulative counters: */
+
+ /* # of times we have run on this CPU: */
+ unsigned long pcount;
+
+ /* Time spent waiting on a runqueue: */
+ unsigned long long run_delay;
+
+ /* Timestamps: */
+
+ /* When did we last run on a CPU? */
+ unsigned long long last_arrival;
+
+ /* When were we last queued to run? */
+ unsigned long long last_queued;
- /* timestamps */
- unsigned long long last_arrival,/* when we last ran on a cpu */
- last_queued; /* when we were last queued to run */
#endif /* CONFIG_SCHED_INFO */
};
@@ -243,12 +251,12 @@ struct sched_info {
* We define a basic fixed point arithmetic range, and then formalize
* all these metrics based on that basic range.
*/
-# define SCHED_FIXEDPOINT_SHIFT 10
-# define SCHED_FIXEDPOINT_SCALE (1L << SCHED_FIXEDPOINT_SHIFT)
+# define SCHED_FIXEDPOINT_SHIFT 10
+# define SCHED_FIXEDPOINT_SCALE (1L << SCHED_FIXEDPOINT_SHIFT)
struct load_weight {
- unsigned long weight;
- u32 inv_weight;
+ unsigned long weight;
+ u32 inv_weight;
};
/*
@@ -304,69 +312,73 @@ struct load_weight {
* issues.
*/
struct sched_avg {
- u64 last_update_time, load_sum;
- u32 util_sum, period_contrib;
- unsigned long load_avg, util_avg;
+ u64 last_update_time;
+ u64 load_sum;
+ u32 util_sum;
+ u32 period_contrib;
+ unsigned long load_avg;
+ unsigned long util_avg;
};
struct sched_statistics {
#ifdef CONFIG_SCHEDSTATS
- u64 wait_start;
- u64 wait_max;
- u64 wait_count;
- u64 wait_sum;
- u64 iowait_count;
- u64 iowait_sum;
-
- u64 sleep_start;
- u64 sleep_max;
- s64 sum_sleep_runtime;
-
- u64 block_start;
- u64 block_max;
- u64 exec_max;
- u64 slice_max;
-
- u64 nr_migrations_cold;
- u64 nr_failed_migrations_affine;
- u64 nr_failed_migrations_running;
- u64 nr_failed_migrations_hot;
- u64 nr_forced_migrations;
-
- u64 nr_wakeups;
- u64 nr_wakeups_sync;
- u64 nr_wakeups_migrate;
- u64 nr_wakeups_local;
- u64 nr_wakeups_remote;
- u64 nr_wakeups_affine;
- u64 nr_wakeups_affine_attempts;
- u64 nr_wakeups_passive;
- u64 nr_wakeups_idle;
+ u64 wait_start;
+ u64 wait_max;
+ u64 wait_count;
+ u64 wait_sum;
+ u64 iowait_count;
+ u64 iowait_sum;
+
+ u64 sleep_start;
+ u64 sleep_max;
+ s64 sum_sleep_runtime;
+
+ u64 block_start;
+ u64 block_max;
+ u64 exec_max;
+ u64 slice_max;
+
+ u64 nr_migrations_cold;
+ u64 nr_failed_migrations_affine;
+ u64 nr_failed_migrations_running;
+ u64 nr_failed_migrations_hot;
+ u64 nr_forced_migrations;
+
+ u64 nr_wakeups;
+ u64 nr_wakeups_sync;
+ u64 nr_wakeups_migrate;
+ u64 nr_wakeups_local;
+ u64 nr_wakeups_remote;
+ u64 nr_wakeups_affine;
+ u64 nr_wakeups_affine_attempts;
+ u64 nr_wakeups_passive;
+ u64 nr_wakeups_idle;
#endif
};
struct sched_entity {
- struct load_weight load; /* for load-balancing */
- struct rb_node run_node;
- struct list_head group_node;
- unsigned int on_rq;
+ /* For load-balancing: */
+ struct load_weight load;
+ struct rb_node run_node;
+ struct list_head group_node;
+ unsigned int on_rq;
- u64 exec_start;
- u64 sum_exec_runtime;
- u64 vruntime;
- u64 prev_sum_exec_runtime;
+ u64 exec_start;
+ u64 sum_exec_runtime;
+ u64 vruntime;
+ u64 prev_sum_exec_runtime;
- u64 nr_migrations;
+ u64 nr_migrations;
- struct sched_statistics statistics;
+ struct sched_statistics statistics;
#ifdef CONFIG_FAIR_GROUP_SCHED
- int depth;
- struct sched_entity *parent;
+ int depth;
+ struct sched_entity *parent;
/* rq on which this entity is (to be) queued: */
- struct cfs_rq *cfs_rq;
+ struct cfs_rq *cfs_rq;
/* rq "owned" by this entity/group: */
- struct cfs_rq *my_q;
+ struct cfs_rq *my_q;
#endif
#ifdef CONFIG_SMP
@@ -376,49 +388,49 @@ struct sched_entity {
* Put into separate cache line so it does not
* collide with read-mostly values above.
*/
- struct sched_avg avg ____cacheline_aligned_in_smp;
+ struct sched_avg avg ____cacheline_aligned_in_smp;
#endif
};
struct sched_rt_entity {
- struct list_head run_list;
- unsigned long timeout;
- unsigned long watchdog_stamp;
- unsigned int time_slice;
- unsigned short on_rq;
- unsigned short on_list;
-
- struct sched_rt_entity *back;
+ struct list_head run_list;
+ unsigned long timeout;
+ unsigned long watchdog_stamp;
+ unsigned int time_slice;
+ unsigned short on_rq;
+ unsigned short on_list;
+
+ struct sched_rt_entity *back;
#ifdef CONFIG_RT_GROUP_SCHED
- struct sched_rt_entity *parent;
+ struct sched_rt_entity *parent;
/* rq on which this entity is (to be) queued: */
- struct rt_rq *rt_rq;
+ struct rt_rq *rt_rq;
/* rq "owned" by this entity/group: */
- struct rt_rq *my_q;
+ struct rt_rq *my_q;
#endif
};
struct sched_dl_entity {
- struct rb_node rb_node;
+ struct rb_node rb_node;
/*
* Original scheduling parameters. Copied here from sched_attr
* during sched_setattr(), they will remain the same until
* the next sched_setattr().
*/
- u64 dl_runtime; /* maximum runtime for each instance */
- u64 dl_deadline; /* relative deadline of each instance */
- u64 dl_period; /* separation of two instances (period) */
- u64 dl_bw; /* dl_runtime / dl_deadline */
+ u64 dl_runtime; /* Maximum runtime for each instance */
+ u64 dl_deadline; /* Relative deadline of each instance */
+ u64 dl_period; /* Separation of two instances (period) */
+ u64 dl_bw; /* dl_runtime / dl_deadline */
/*
* Actual scheduling parameters. Initialized with the values above,
* they are continously updated during task execution. Note that
* the remaining runtime could be < 0 in case we are in overrun.
*/
- s64 runtime; /* remaining runtime for this instance */
- u64 deadline; /* absolute deadline for this instance */
- unsigned int flags; /* specifying the scheduler behaviour */
+ s64 runtime; /* Remaining runtime for this instance */
+ u64 deadline; /* Absolute deadline for this instance */
+ unsigned int flags; /* Specifying the scheduler behaviour */
/*
* Some bool flags:
@@ -431,24 +443,28 @@ struct sched_dl_entity {
* outside bandwidth enforcement mechanism (but only until we
* exit the critical section);
*
- * @dl_yielded tells if task gave up the cpu before consuming
+ * @dl_yielded tells if task gave up the CPU before consuming
* all its available runtime during the last job.
*/
- int dl_throttled, dl_boosted, dl_yielded;
+ int dl_throttled;
+ int dl_boosted;
+ int dl_yielded;
/*
* Bandwidth enforcement timer. Each -deadline task has its
* own bandwidth to be enforced, thus we need one timer per task.
*/
- struct hrtimer dl_timer;
+ struct hrtimer dl_timer;
};
union rcu_special {
struct {
- u8 blocked;
- u8 need_qs;
- u8 exp_need_qs;
- u8 pad; /* Otherwise the compiler can store garbage here. */
+ u8 blocked;
+ u8 need_qs;
+ u8 exp_need_qs;
+
+ /* Otherwise the compiler can store garbage here: */
+ u8 pad;
} b; /* Bits. */
u32 s; /* Set of bits. */
};
@@ -466,361 +482,417 @@ struct task_struct {
* For reasons of header soup (see current_thread_info()), this
* must be the first element of task_struct.
*/
- struct thread_info thread_info;
+ struct thread_info thread_info;
#endif
- volatile long state; /* -1 unrunnable, 0 runnable, >0 stopped */
- void *stack;
- atomic_t usage;
- unsigned int flags; /* per process flags, defined below */
- unsigned int ptrace;
+ /* -1 unrunnable, 0 runnable, >0 stopped: */
+ volatile long state;
+ void *stack;
+ atomic_t usage;
+ /* Per task flags (PF_*), defined further below: */
+ unsigned int flags;
+ unsigned int ptrace;
#ifdef CONFIG_SMP
- struct llist_node wake_entry;
- int on_cpu;
+ struct llist_node wake_entry;
+ int on_cpu;
#ifdef CONFIG_THREAD_INFO_IN_TASK
- unsigned int cpu; /* current CPU */
+ /* Current CPU: */
+ unsigned int cpu;
#endif
- unsigned int wakee_flips;
- unsigned long wakee_flip_decay_ts;
- struct task_struct *last_wakee;
+ unsigned int wakee_flips;
+ unsigned long wakee_flip_decay_ts;
+ struct task_struct *last_wakee;
- int wake_cpu;
+ int wake_cpu;
#endif
- int on_rq;
+ int on_rq;
+
+ int prio;
+ int static_prio;
+ int normal_prio;
+ unsigned int rt_priority;
- int prio, static_prio, normal_prio;
- unsigned int rt_priority;
- const struct sched_class *sched_class;
- struct sched_entity se;
- struct sched_rt_entity rt;
+ const struct sched_class *sched_class;
+ struct sched_entity se;
+ struct sched_rt_entity rt;
#ifdef CONFIG_CGROUP_SCHED
- struct task_group *sched_task_group;
+ struct task_group *sched_task_group;
#endif
- struct sched_dl_entity dl;
+ struct sched_dl_entity dl;
#ifdef CONFIG_PREEMPT_NOTIFIERS
- /* list of struct preempt_notifier: */
- struct hlist_head preempt_notifiers;
+ /* List of struct preempt_notifier: */
+ struct hlist_head preempt_notifiers;
#endif
#ifdef CONFIG_BLK_DEV_IO_TRACE
- unsigned int btrace_seq;
+ unsigned int btrace_seq;
#endif
- unsigned int policy;
- int nr_cpus_allowed;
- cpumask_t cpus_allowed;
+ unsigned int policy;
+ int nr_cpus_allowed;
+ cpumask_t cpus_allowed;
#ifdef CONFIG_PREEMPT_RCU
- int rcu_read_lock_nesting;
- union rcu_special rcu_read_unlock_special;
- struct list_head rcu_node_entry;
- struct rcu_node *rcu_blocked_node;
+ int rcu_read_lock_nesting;
+ union rcu_special rcu_read_unlock_special;
+ struct list_head rcu_node_entry;
+ struct rcu_node *rcu_blocked_node;
#endif /* #ifdef CONFIG_PREEMPT_RCU */
+
#ifdef CONFIG_TASKS_RCU
- unsigned long rcu_tasks_nvcsw;
- bool rcu_tasks_holdout;
- struct list_head rcu_tasks_holdout_list;
- int rcu_tasks_idle_cpu;
+ unsigned long rcu_tasks_nvcsw;
+ bool rcu_tasks_holdout;
+ struct list_head rcu_tasks_holdout_list;
+ int rcu_tasks_idle_cpu;
#endif /* #ifdef CONFIG_TASKS_RCU */
- struct sched_info sched_info;
+ struct sched_info sched_info;
- struct list_head tasks;
+ struct list_head tasks;
#ifdef CONFIG_SMP
- struct plist_node pushable_tasks;
- struct rb_node pushable_dl_tasks;
+ struct plist_node pushable_tasks;
+ struct rb_node pushable_dl_tasks;
#endif
- struct mm_struct *mm, *active_mm;
+ struct mm_struct *mm;
+ struct mm_struct *active_mm;
/* Per-thread vma caching: */
- struct vmacache vmacache;
-
-#if defined(SPLIT_RSS_COUNTING)
- struct task_rss_stat rss_stat;
-#endif
-/* task state */
- int exit_state;
- int exit_code, exit_signal;
- int pdeath_signal; /* The signal sent when the parent dies */
- unsigned long jobctl; /* JOBCTL_*, siglock protected */
-
- /* Used for emulating ABI behavior of previous Linux versions */
- unsigned int personality;
-
- /* scheduler bits, serialized by scheduler locks */
- unsigned sched_reset_on_fork:1;
- unsigned sched_contributes_to_load:1;
- unsigned sched_migrated:1;
- unsigned sched_remote_wakeup:1;
- unsigned :0; /* force alignment to the next boundary */
-
- /* unserialized, strictly 'current' */
- unsigned in_execve:1; /* bit to tell LSMs we're in execve */
- unsigned in_iowait:1;
-#if !defined(TIF_RESTORE_SIGMASK)
- unsigned restore_sigmask:1;
+ struct vmacache vmacache;
+
+#ifdef SPLIT_RSS_COUNTING
+ struct task_rss_stat rss_stat;
+#endif
+ int exit_state;
+ int exit_code;
+ int exit_signal;
+ /* The signal sent when the parent dies: */
+ int pdeath_signal;
+ /* JOBCTL_*, siglock protected: */
+ unsigned long jobctl;
+
+ /* Used for emulating ABI behavior of previous Linux versions: */
+ unsigned int personality;
+
+ /* Scheduler bits, serialized by scheduler locks: */
+ unsigned sched_reset_on_fork:1;
+ unsigned sched_contributes_to_load:1;
+ unsigned sched_migrated:1;
+ unsigned sched_remote_wakeup:1;
+ /* Force alignment to the next boundary: */
+ unsigned :0;
+
+ /* Unserialized, strictly 'current' */
+
+ /* Bit to tell LSMs we're in execve(): */
+ unsigned in_execve:1;
+ unsigned in_iowait:1;
+#ifndef TIF_RESTORE_SIGMASK
+ unsigned restore_sigmask:1;
#endif
#ifdef CONFIG_MEMCG
- unsigned memcg_may_oom:1;
+ unsigned memcg_may_oom:1;
#ifndef CONFIG_SLOB
- unsigned memcg_kmem_skip_account:1;
+ unsigned memcg_kmem_skip_account:1;
#endif
#endif
#ifdef CONFIG_COMPAT_BRK
- unsigned brk_randomized:1;
+ unsigned brk_randomized:1;
#endif
- unsigned long atomic_flags; /* Flags needing atomic access. */
+ unsigned long atomic_flags; /* Flags requiring atomic access. */
- struct restart_block restart_block;
+ struct restart_block restart_block;
- pid_t pid;
- pid_t tgid;
+ pid_t pid;
+ pid_t tgid;
#ifdef CONFIG_CC_STACKPROTECTOR
- /* Canary value for the -fstack-protector gcc feature */
- unsigned long stack_canary;
+ /* Canary value for the -fstack-protector GCC feature: */
+ unsigned long stack_canary;
#endif
/*
- * pointers to (original) parent process, youngest child, younger sibling,
+ * Pointers to the (original) parent process, youngest child, younger sibling,
* older sibling, respectively. (p->father can be replaced with
* p->real_parent->pid)
*/
- struct task_struct __rcu *real_parent; /* real parent process */
- struct task_struct __rcu *parent; /* recipient of SIGCHLD, wait4() reports */
+
+ /* Real parent process: */
+ struct task_struct __rcu *real_parent;
+
+ /* Recipient of SIGCHLD, wait4() reports: */
+ struct task_struct __rcu *parent;
+
/*
- * children/sibling forms the list of my natural children
+ * Children/sibling form the list of natural children:
*/
- struct list_head children; /* list of my children */
- struct list_head sibling; /* linkage in my parent's children list */
- struct task_struct *group_leader; /* threadgroup leader */
+ struct list_head children;
+ struct list_head sibling;
+ struct task_struct *group_leader;
/*
- * ptraced is the list of tasks this task is using ptrace on.
+ * 'ptraced' is the list of tasks this task is using ptrace() on.
+ *
* This includes both natural children and PTRACE_ATTACH targets.
- * p->ptrace_entry is p's link on the p->parent->ptraced list.
+ * 'ptrace_entry' is this task's link on the p->parent->ptraced list.
*/
- struct list_head ptraced;
- struct list_head ptrace_entry;
+ struct list_head ptraced;
+ struct list_head ptrace_entry;
/* PID/PID hash table linkage. */
- struct pid_link pids[PIDTYPE_MAX];
- struct list_head thread_group;
- struct list_head thread_node;
+ struct pid_link pids[PIDTYPE_MAX];
+ struct list_head thread_group;
+ struct list_head thread_node;
+
+ struct completion *vfork_done;
- struct completion *vfork_done; /* for vfork() */
- int __user *set_child_tid; /* CLONE_CHILD_SETTID */
- int __user *clear_child_tid; /* CLONE_CHILD_CLEARTID */
+ /* CLONE_CHILD_SETTID: */
+ int __user *set_child_tid;
- u64 utime, stime;
+ /* CLONE_CHILD_CLEARTID: */
+ int __user *clear_child_tid;
+
+ u64 utime;
+ u64 stime;
#ifdef CONFIG_ARCH_HAS_SCALED_CPUTIME
- u64 utimescaled, stimescaled;
+ u64 utimescaled;
+ u64 stimescaled;
#endif
- u64 gtime;
- struct prev_cputime prev_cputime;
+ u64 gtime;
+ struct prev_cputime prev_cputime;
#ifdef CONFIG_VIRT_CPU_ACCOUNTING_GEN
- seqcount_t vtime_seqcount;
- unsigned long long vtime_snap;
+ seqcount_t vtime_seqcount;
+ unsigned long long vtime_snap;
enum {
- /* Task is sleeping or running in a CPU with VTIME inactive */
+ /* Task is sleeping or running in a CPU with VTIME inactive: */
VTIME_INACTIVE = 0,
- /* Task runs in userspace in a CPU with VTIME active */
+ /* Task runs in userspace in a CPU with VTIME active: */
VTIME_USER,
- /* Task runs in kernelspace in a CPU with VTIME active */
+ /* Task runs in kernelspace in a CPU with VTIME active: */
VTIME_SYS,
} vtime_snap_whence;
#endif
#ifdef CONFIG_NO_HZ_FULL
- atomic_t tick_dep_mask;
+ atomic_t tick_dep_mask;
#endif
- unsigned long nvcsw, nivcsw; /* context switch counts */
- u64 start_time; /* monotonic time in nsec */
- u64 real_start_time; /* boot based time in nsec */
-/* mm fault and swap info: this can arguably be seen as either mm-specific or thread-specific */
- unsigned long min_flt, maj_flt;
+ /* Context switch counts: */
+ unsigned long nvcsw;
+ unsigned long nivcsw;
+
+ /* Monotonic time in nsecs: */
+ u64 start_time;
+
+ /* Boot based time in nsecs: */
+ u64 real_start_time;
+
+ /* MM fault and swap info: this can arguably be seen as either mm-specific or thread-specific: */
+ unsigned long min_flt;
+ unsigned long maj_flt;
#ifdef CONFIG_POSIX_TIMERS
- struct task_cputime cputime_expires;
- struct list_head cpu_timers[3];
-#endif
-
-/* process credentials */
- const struct cred __rcu *ptracer_cred; /* Tracer's credentials at attach */
- const struct cred __rcu *real_cred; /* objective and real subjective task
- * credentials (COW) */
- const struct cred __rcu *cred; /* effective (overridable) subjective task
- * credentials (COW) */
- char comm[TASK_COMM_LEN]; /* executable name excluding path
- - access with [gs]et_task_comm (which lock
- it with task_lock())
- - initialized normally by setup_new_exec */
-/* file system info */
- struct nameidata *nameidata;
+ struct task_cputime cputime_expires;
+ struct list_head cpu_timers[3];
+#endif
+
+ /* Process credentials: */
+
+ /* Tracer's credentials at attach: */
+ const struct cred __rcu *ptracer_cred;
+
+ /* Objective and real subjective task credentials (COW): */
+ const struct cred __rcu *real_cred;
+
+ /* Effective (overridable) subjective task credentials (COW): */
+ const struct cred __rcu *cred;
+
+ /*
+ * executable name, excluding path.
+ *
+ * - normally initialized setup_new_exec()
+ * - access it with [gs]et_task_comm()
+ * - lock it with task_lock()
+ */
+ char comm[TASK_COMM_LEN];
+
+ struct nameidata *nameidata;
+
#ifdef CONFIG_SYSVIPC
-/* ipc stuff */
- struct sysv_sem sysvsem;
- struct sysv_shm sysvshm;
+ struct sysv_sem sysvsem;
+ struct sysv_shm sysvshm;
#endif
#ifdef CONFIG_DETECT_HUNG_TASK
-/* hung task detection */
- unsigned long last_switch_count;
-#endif
-/* filesystem information */
- struct fs_struct *fs;
-/* open file information */
- struct files_struct *files;
-/* namespaces */
- struct nsproxy *nsproxy;
-/* signal handlers */
- struct signal_struct *signal;
- struct sighand_struct *sighand;
-
- sigset_t blocked, real_blocked;
- sigset_t saved_sigmask; /* restored if set_restore_sigmask() was used */
- struct sigpending pending;
-
- unsigned long sas_ss_sp;
- size_t sas_ss_size;
- unsigned sas_ss_flags;
-
- struct callback_head *task_works;
-
- struct audit_context *audit_context;
+ unsigned long last_switch_count;
+#endif
+ /* Filesystem information: */
+ struct fs_struct *fs;
+
+ /* Open file information: */
+ struct files_struct *files;
+
+ /* Namespaces: */
+ struct nsproxy *nsproxy;
+
+ /* Signal handlers: */
+ struct signal_struct *signal;
+ struct sighand_struct *sighand;
+ sigset_t blocked;
+ sigset_t real_blocked;
+ /* Restored if set_restore_sigmask() was used: */
+ sigset_t saved_sigmask;
+ struct sigpending pending;
+ unsigned long sas_ss_sp;
+ size_t sas_ss_size;
+ unsigned int sas_ss_flags;
+
+ struct callback_head *task_works;
+
+ struct audit_context *audit_context;
#ifdef CONFIG_AUDITSYSCALL
- kuid_t loginuid;
- unsigned int sessionid;
+ kuid_t loginuid;
+ unsigned int sessionid;
#endif
- struct seccomp seccomp;
+ struct seccomp seccomp;
-/* Thread group tracking */
- u32 parent_exec_id;
- u32 self_exec_id;
-/* Protection of (de-)allocation: mm, files, fs, tty, keyrings, mems_allowed,
- * mempolicy */
- spinlock_t alloc_lock;
+ /* Thread group tracking: */
+ u32 parent_exec_id;
+ u32 self_exec_id;
+
+ /* Protection against (de-)allocation: mm, files, fs, tty, keyrings, mems_allowed, mempolicy: */
+ spinlock_t alloc_lock;
/* Protection of the PI data structures: */
- raw_spinlock_t pi_lock;
+ raw_spinlock_t pi_lock;
- void *wake_q;
+ void *wake_q;
#ifdef CONFIG_RT_MUTEXES
- /* PI waiters blocked on a rt_mutex held by this task */
- struct rb_root pi_waiters;
- struct rb_node *pi_waiters_leftmost;
- /* Deadlock detection and priority inheritance handling */
- struct rt_mutex_waiter *pi_blocked_on;
+ /* PI waiters blocked on a rt_mutex held by this task: */
+ struct rb_root pi_waiters;
+ struct rb_node *pi_waiters_leftmost;
+ /* Deadlock detection and priority inheritance handling: */
+ struct rt_mutex_waiter *pi_blocked_on;
#endif
#ifdef CONFIG_DEBUG_MUTEXES
- /* mutex deadlock detection */
- struct mutex_waiter *blocked_on;
+ /* Mutex deadlock detection: */
+ struct mutex_waiter *blocked_on;
#endif
+
#ifdef CONFIG_TRACE_IRQFLAGS
- unsigned int irq_events;
- unsigned long hardirq_enable_ip;
- unsigned long hardirq_disable_ip;
- unsigned int hardirq_enable_event;
- unsigned int hardirq_disable_event;
- int hardirqs_enabled;
- int hardirq_context;
- unsigned long softirq_disable_ip;
- unsigned long softirq_enable_ip;
- unsigned int softirq_disable_event;
- unsigned int softirq_enable_event;
- int softirqs_enabled;
- int softirq_context;
+ unsigned int irq_events;
+ unsigned long hardirq_enable_ip;
+ unsigned long hardirq_disable_ip;
+ unsigned int hardirq_enable_event;
+ unsigned int hardirq_disable_event;
+ int hardirqs_enabled;
+ int hardirq_context;
+ unsigned long softirq_disable_ip;
+ unsigned long softirq_enable_ip;
+ unsigned int softirq_disable_event;
+ unsigned int softirq_enable_event;
+ int softirqs_enabled;
+ int softirq_context;
#endif
+
#ifdef CONFIG_LOCKDEP
-# define MAX_LOCK_DEPTH 48UL
- u64 curr_chain_key;
- int lockdep_depth;
- unsigned int lockdep_recursion;
- struct held_lock held_locks[MAX_LOCK_DEPTH];
- gfp_t lockdep_reclaim_gfp;
+# define MAX_LOCK_DEPTH 48UL
+ u64 curr_chain_key;
+ int lockdep_depth;
+ unsigned int lockdep_recursion;
+ struct held_lock held_locks[MAX_LOCK_DEPTH];
+ gfp_t lockdep_reclaim_gfp;
#endif
+
#ifdef CONFIG_UBSAN
- unsigned int in_ubsan;
+ unsigned int in_ubsan;
#endif
-/* journalling filesystem info */
- void *journal_info;
+ /* Journalling filesystem info: */
+ void *journal_info;
-/* stacked block device info */
- struct bio_list *bio_list;
+ /* Stacked block device info: */
+ struct bio_list *bio_list;
#ifdef CONFIG_BLOCK
-/* stack plugging */
- struct blk_plug *plug;
+ /* Stack plugging: */
+ struct blk_plug *plug;
#endif
-/* VM state */
- struct reclaim_state *reclaim_state;
+ /* VM state: */
+ struct reclaim_state *reclaim_state;
+
+ struct backing_dev_info *backing_dev_info;
- struct backing_dev_info *backing_dev_info;
+ struct io_context *io_context;
- struct io_context *io_context;
+ /* Ptrace state: */
+ unsigned long ptrace_message;
+ siginfo_t *last_siginfo;
- unsigned long ptrace_message;
- siginfo_t *last_siginfo; /* For ptrace use. */
- struct task_io_accounting ioac;
-#if defined(CONFIG_TASK_XACCT)
- u64 acct_rss_mem1; /* accumulated rss usage */
- u64 acct_vm_mem1; /* accumulated virtual memory usage */
- u64 acct_timexpd; /* stime + utime since last update */
+ struct task_io_accounting ioac;
+#ifdef CONFIG_TASK_XACCT
+ /* Accumulated RSS usage: */
+ u64 acct_rss_mem1;
+ /* Accumulated virtual memory usage: */
+ u64 acct_vm_mem1;
+ /* stime + utime since last update: */
+ u64 acct_timexpd;
#endif
#ifdef CONFIG_CPUSETS
- nodemask_t mems_allowed; /* Protected by alloc_lock */
- seqcount_t mems_allowed_seq; /* Seqence no to catch updates */
- int cpuset_mem_spread_rotor;
- int cpuset_slab_spread_rotor;
+ /* Protected by ->alloc_lock: */
+ nodemask_t mems_allowed;
+ /* Seqence number to catch updates: */
+ seqcount_t mems_allowed_seq;
+ int cpuset_mem_spread_rotor;
+ int cpuset_slab_spread_rotor;
#endif
#ifdef CONFIG_CGROUPS
- /* Control Group info protected by css_set_lock */
- struct css_set __rcu *cgroups;
- /* cg_list protected by css_set_lock and tsk->alloc_lock */
- struct list_head cg_list;
+ /* Control Group info protected by css_set_lock: */
+ struct css_set __rcu *cgroups;
+ /* cg_list protected by css_set_lock and tsk->alloc_lock: */
+ struct list_head cg_list;
#endif
#ifdef CONFIG_INTEL_RDT_A
- int closid;
+ int closid;
#endif
#ifdef CONFIG_FUTEX
- struct robust_list_head __user *robust_list;
+ struct robust_list_head __user *robust_list;
#ifdef CONFIG_COMPAT
struct compat_robust_list_head __user *compat_robust_list;
#endif
- struct list_head pi_state_list;
- struct futex_pi_state *pi_state_cache;
+ struct list_head pi_state_list;
+ struct futex_pi_state *pi_state_cache;
#endif
#ifdef CONFIG_PERF_EVENTS
- struct perf_event_context *perf_event_ctxp[perf_nr_task_contexts];
- struct mutex perf_event_mutex;
- struct list_head perf_event_list;
+ struct perf_event_context *perf_event_ctxp[perf_nr_task_contexts];
+ struct mutex perf_event_mutex;
+ struct list_head perf_event_list;
#endif
#ifdef CONFIG_DEBUG_PREEMPT
- unsigned long preempt_disable_ip;
+ unsigned long preempt_disable_ip;
#endif
#ifdef CONFIG_NUMA
- struct mempolicy *mempolicy; /* Protected by alloc_lock */
- short il_next;
- short pref_node_fork;
+ /* Protected by alloc_lock: */
+ struct mempolicy *mempolicy;
+ short il_next;
+ short pref_node_fork;
#endif
#ifdef CONFIG_NUMA_BALANCING
- int numa_scan_seq;
- unsigned int numa_scan_period;
- unsigned int numa_scan_period_max;
- int numa_preferred_nid;
- unsigned long numa_migrate_retry;
- u64 node_stamp; /* migration stamp */
- u64 last_task_numa_placement;
- u64 last_sum_exec_runtime;
- struct callback_head numa_work;
-
- struct list_head numa_entry;
- struct numa_group *numa_group;
+ int numa_scan_seq;
+ unsigned int numa_scan_period;
+ unsigned int numa_scan_period_max;
+ int numa_preferred_nid;
+ unsigned long numa_migrate_retry;
+ /* Migration stamp: */
+ u64 node_stamp;
+ u64 last_task_numa_placement;
+ u64 last_sum_exec_runtime;
+ struct callback_head numa_work;
+
+ struct list_head numa_entry;
+ struct numa_group *numa_group;
/*
* numa_faults is an array split into four regions:
@@ -836,8 +908,8 @@ struct task_struct {
* during the current scan window. When the scan completes, the counts
* in faults_memory and faults_cpu decay and these values are copied.
*/
- unsigned long *numa_faults;
- unsigned long total_numa_faults;
+ unsigned long *numa_faults;
+ unsigned long total_numa_faults;
/*
* numa_faults_locality tracks if faults recorded during the last
@@ -845,117 +917,130 @@ struct task_struct {
* period is adapted based on the locality of the faults with different
* weights depending on whether they were shared or private faults
*/
- unsigned long numa_faults_locality[3];
+ unsigned long numa_faults_locality[3];
- unsigned long numa_pages_migrated;
+ unsigned long numa_pages_migrated;
#endif /* CONFIG_NUMA_BALANCING */
- struct tlbflush_unmap_batch tlb_ubc;
+ struct tlbflush_unmap_batch tlb_ubc;
- struct rcu_head rcu;
+ struct rcu_head rcu;
- /*
- * cache last used pipe for splice
- */
- struct pipe_inode_info *splice_pipe;
+ /* Cache last used pipe for splice(): */
+ struct pipe_inode_info *splice_pipe;
- struct page_frag task_frag;
+ struct page_frag task_frag;
- struct task_delay_info *delays;
+ struct task_delay_info *delays;
#ifdef CONFIG_FAULT_INJECTION
- int make_it_fail;
+ int make_it_fail;
#endif
/*
- * when (nr_dirtied >= nr_dirtied_pause), it's time to call
- * balance_dirty_pages() for some dirty throttling pause
+ * When (nr_dirtied >= nr_dirtied_pause), it's time to call
+ * balance_dirty_pages() for a dirty throttling pause:
*/
- int nr_dirtied;
- int nr_dirtied_pause;
- unsigned long dirty_paused_when; /* start of a write-and-pause period */
+ int nr_dirtied;
+ int nr_dirtied_pause;
+ /* Start of a write-and-pause period: */
+ unsigned long dirty_paused_when;
#ifdef CONFIG_LATENCYTOP
- int latency_record_count;
- struct latency_record latency_record[LT_SAVECOUNT];
+ int latency_record_count;
+ struct latency_record latency_record[LT_SAVECOUNT];
#endif
/*
- * time slack values; these are used to round up poll() and
+ * Time slack values; these are used to round up poll() and
* select() etc timeout values. These are in nanoseconds.
*/
- u64 timer_slack_ns;
- u64 default_timer_slack_ns;
+ u64 timer_slack_ns;
+ u64 default_timer_slack_ns;
#ifdef CONFIG_KASAN
- unsigned int kasan_depth;
+ unsigned int kasan_depth;
#endif
+
#ifdef CONFIG_FUNCTION_GRAPH_TRACER
- /* Index of current stored address in ret_stack */
- int curr_ret_stack;
- /* Stack of return addresses for return function tracing */
- struct ftrace_ret_stack *ret_stack;
- /* time stamp for last schedule */
- unsigned long long ftrace_timestamp;
+ /* Index of current stored address in ret_stack: */
+ int curr_ret_stack;
+
+ /* Stack of return addresses for return function tracing: */
+ struct ftrace_ret_stack *ret_stack;
+
+ /* Timestamp for last schedule: */
+ unsigned long long ftrace_timestamp;
+
/*
* Number of functions that haven't been traced
- * because of depth overrun.
+ * because of depth overrun:
*/
- atomic_t trace_overrun;
- /* Pause for the tracing */
- atomic_t tracing_graph_pause;
+ atomic_t trace_overrun;
+
+ /* Pause tracing: */
+ atomic_t tracing_graph_pause;
#endif
+
#ifdef CONFIG_TRACING
- /* state flags for use by tracers */
- unsigned long trace;
- /* bitmask and counter of trace recursion */
- unsigned long trace_recursion;
+ /* State flags for use by tracers: */
+ unsigned long trace;
+
+ /* Bitmask and counter of trace recursion: */
+ unsigned long trace_recursion;
#endif /* CONFIG_TRACING */
+
#ifdef CONFIG_KCOV
- /* Coverage collection mode enabled for this task (0 if disabled). */
- enum kcov_mode kcov_mode;
- /* Size of the kcov_area. */
- unsigned kcov_size;
- /* Buffer for coverage collection. */
- void *kcov_area;
- /* kcov desciptor wired with this task or NULL. */
- struct kcov *kcov;
+ /* Coverage collection mode enabled for this task (0 if disabled): */
+ enum kcov_mode kcov_mode;
+
+ /* Size of the kcov_area: */
+ unsigned int kcov_size;
+
+ /* Buffer for coverage collection: */
+ void *kcov_area;
+
+ /* KCOV descriptor wired with this task or NULL: */
+ struct kcov *kcov;
#endif
+
#ifdef CONFIG_MEMCG
- struct mem_cgroup *memcg_in_oom;
- gfp_t memcg_oom_gfp_mask;
- int memcg_oom_order;
+ struct mem_cgroup *memcg_in_oom;
+ gfp_t memcg_oom_gfp_mask;
+ int memcg_oom_order;
- /* number of pages to reclaim on returning to userland */
- unsigned int memcg_nr_pages_over_high;
+ /* Number of pages to reclaim on returning to userland: */
+ unsigned int memcg_nr_pages_over_high;
#endif
+
#ifdef CONFIG_UPROBES
- struct uprobe_task *utask;
+ struct uprobe_task *utask;
#endif
#if defined(CONFIG_BCACHE) || defined(CONFIG_BCACHE_MODULE)
- unsigned int sequential_io;
- unsigned int sequential_io_avg;
+ unsigned int sequential_io;
+ unsigned int sequential_io_avg;
#endif
#ifdef CONFIG_DEBUG_ATOMIC_SLEEP
- unsigned long task_state_change;
+ unsigned long task_state_change;
#endif
- int pagefault_disabled;
+ int pagefault_disabled;
#ifdef CONFIG_MMU
- struct task_struct *oom_reaper_list;
+ struct task_struct *oom_reaper_list;
#endif
#ifdef CONFIG_VMAP_STACK
- struct vm_struct *stack_vm_area;
+ struct vm_struct *stack_vm_area;
#endif
#ifdef CONFIG_THREAD_INFO_IN_TASK
- /* A live task holds one reference. */
- atomic_t stack_refcount;
+ /* A live task holds one reference: */
+ atomic_t stack_refcount;
#endif
-/* CPU-specific state of this task */
- struct thread_struct thread;
-/*
- * WARNING: on x86, 'thread_struct' contains a variable-sized
- * structure. It *MUST* be at the end of 'task_struct'.
- *
- * Do not put anything below here!
- */
+ /* CPU-specific state of this task: */
+ struct thread_struct thread;
+
+ /*
+ * WARNING: on x86, 'thread_struct' contains a variable-sized
+ * structure. It *MUST* be at the end of 'task_struct'.
+ *
+ * Do not put anything below here!
+ */
};
static inline struct pid *task_pid(struct task_struct *task)
@@ -969,7 +1054,7 @@ static inline struct pid *task_tgid(struct task_struct *task)
}
/*
- * Without tasklist or rcu lock it is not safe to dereference
+ * Without tasklist or RCU lock it is not safe to dereference
* the result of task_pgrp/task_session even if task == current,
* we can race with another thread doing sys_setsid/sys_setpgid.
*/
@@ -996,16 +1081,14 @@ static inline struct pid *task_session(struct task_struct *task)
*
* see also pid_nr() etc in include/linux/pid.h
*/
-pid_t __task_pid_nr_ns(struct task_struct *task, enum pid_type type,
- struct pid_namespace *ns);
+pid_t __task_pid_nr_ns(struct task_struct *task, enum pid_type type, struct pid_namespace *ns);
static inline pid_t task_pid_nr(struct task_struct *tsk)
{
return tsk->pid;
}
-static inline pid_t task_pid_nr_ns(struct task_struct *tsk,
- struct pid_namespace *ns)
+static inline pid_t task_pid_nr_ns(struct task_struct *tsk, struct pid_namespace *ns)
{
return __task_pid_nr_ns(tsk, PIDTYPE_PID, ns);
}
@@ -1021,15 +1104,28 @@ static inline pid_t task_tgid_nr(struct task_struct *tsk)
return tsk->tgid;
}
-pid_t task_tgid_nr_ns(struct task_struct *tsk, struct pid_namespace *ns);
+extern pid_t task_tgid_nr_ns(struct task_struct *tsk, struct pid_namespace *ns);
static inline pid_t task_tgid_vnr(struct task_struct *tsk)
{
return pid_vnr(task_tgid(tsk));
}
+/**
+ * pid_alive - check that a task structure is not stale
+ * @p: Task structure to be checked.
+ *
+ * Test if a process is not yet dead (at most zombie state)
+ * If pid_alive fails, then pointers within the task structure
+ * can be stale and must not be dereferenced.
+ *
+ * Return: 1 if the process is alive. 0 otherwise.
+ */
+static inline int pid_alive(const struct task_struct *p)
+{
+ return p->pids[PIDTYPE_PID].pid != NULL;
+}
-static inline int pid_alive(const struct task_struct *p);
static inline pid_t task_ppid_nr_ns(const struct task_struct *tsk, struct pid_namespace *ns)
{
pid_t pid = 0;
@@ -1047,8 +1143,7 @@ static inline pid_t task_ppid_nr(const struct task_struct *tsk)
return task_ppid_nr_ns(tsk, &init_pid_ns);
}
-static inline pid_t task_pgrp_nr_ns(struct task_struct *tsk,
- struct pid_namespace *ns)
+static inline pid_t task_pgrp_nr_ns(struct task_struct *tsk, struct pid_namespace *ns)
{
return __task_pid_nr_ns(tsk, PIDTYPE_PGID, ns);
}
@@ -1059,8 +1154,7 @@ static inline pid_t task_pgrp_vnr(struct task_struct *tsk)
}
-static inline pid_t task_session_nr_ns(struct task_struct *tsk,
- struct pid_namespace *ns)
+static inline pid_t task_session_nr_ns(struct task_struct *tsk, struct pid_namespace *ns)
{
return __task_pid_nr_ns(tsk, PIDTYPE_SID, ns);
}
@@ -1070,28 +1164,13 @@ static inline pid_t task_session_vnr(struct task_struct *tsk)
return __task_pid_nr_ns(tsk, PIDTYPE_SID, NULL);
}
-/* obsolete, do not use */
+/* Obsolete, do not use: */
static inline pid_t task_pgrp_nr(struct task_struct *tsk)
{
return task_pgrp_nr_ns(tsk, &init_pid_ns);
}
/**
- * pid_alive - check that a task structure is not stale
- * @p: Task structure to be checked.
- *
- * Test if a process is not yet dead (at most zombie state)
- * If pid_alive fails, then pointers within the task structure
- * can be stale and must not be dereferenced.
- *
- * Return: 1 if the process is alive. 0 otherwise.
- */
-static inline int pid_alive(const struct task_struct *p)
-{
- return p->pids[PIDTYPE_PID].pid != NULL;
-}
-
-/**
* is_global_init - check if a task structure is init. Since init
* is free to have sub-threads we need to check tgid.
* @tsk: Task structure to be checked.
@@ -1110,34 +1189,34 @@ extern struct pid *cad_pid;
/*
* Per process flags
*/
-#define PF_IDLE 0x00000002 /* I am an IDLE thread */
-#define PF_EXITING 0x00000004 /* getting shut down */
-#define PF_EXITPIDONE 0x00000008 /* pi exit done on shut down */
-#define PF_VCPU 0x00000010 /* I'm a virtual CPU */
-#define PF_WQ_WORKER 0x00000020 /* I'm a workqueue worker */
-#define PF_FORKNOEXEC 0x00000040 /* forked but didn't exec */
-#define PF_MCE_PROCESS 0x00000080 /* process policy on mce errors */
-#define PF_SUPERPRIV 0x00000100 /* used super-user privileges */
-#define PF_DUMPCORE 0x00000200 /* dumped core */
-#define PF_SIGNALED 0x00000400 /* killed by a signal */
-#define PF_MEMALLOC 0x00000800 /* Allocating memory */
-#define PF_NPROC_EXCEEDED 0x00001000 /* set_user noticed that RLIMIT_NPROC was exceeded */
-#define PF_USED_MATH 0x00002000 /* if unset the fpu must be initialized before use */
-#define PF_USED_ASYNC 0x00004000 /* used async_schedule*(), used by module init */
-#define PF_NOFREEZE 0x00008000 /* this thread should not be frozen */
-#define PF_FROZEN 0x00010000 /* frozen for system suspend */
-#define PF_FSTRANS 0x00020000 /* inside a filesystem transaction */
-#define PF_KSWAPD 0x00040000 /* I am kswapd */
-#define PF_MEMALLOC_NOIO 0x00080000 /* Allocating memory without IO involved */
-#define PF_LESS_THROTTLE 0x00100000 /* Throttle me less: I clean memory */
-#define PF_KTHREAD 0x00200000 /* I am a kernel thread */
-#define PF_RANDOMIZE 0x00400000 /* randomize virtual address space */
-#define PF_SWAPWRITE 0x00800000 /* Allowed to write to swap */
-#define PF_NO_SETAFFINITY 0x04000000 /* Userland is not allowed to meddle with cpus_allowed */
-#define PF_MCE_EARLY 0x08000000 /* Early kill for mce process policy */
-#define PF_MUTEX_TESTER 0x20000000 /* Thread belongs to the rt mutex tester */
-#define PF_FREEZER_SKIP 0x40000000 /* Freezer should not count it as freezable */
-#define PF_SUSPEND_TASK 0x80000000 /* this thread called freeze_processes and should not be frozen */
+#define PF_IDLE 0x00000002 /* I am an IDLE thread */
+#define PF_EXITING 0x00000004 /* Getting shut down */
+#define PF_EXITPIDONE 0x00000008 /* PI exit done on shut down */
+#define PF_VCPU 0x00000010 /* I'm a virtual CPU */
+#define PF_WQ_WORKER 0x00000020 /* I'm a workqueue worker */
+#define PF_FORKNOEXEC 0x00000040 /* Forked but didn't exec */
+#define PF_MCE_PROCESS 0x00000080 /* Process policy on mce errors */
+#define PF_SUPERPRIV 0x00000100 /* Used super-user privileges */
+#define PF_DUMPCORE 0x00000200 /* Dumped core */
+#define PF_SIGNALED 0x00000400 /* Killed by a signal */
+#define PF_MEMALLOC 0x00000800 /* Allocating memory */
+#define PF_NPROC_EXCEEDED 0x00001000 /* set_user() noticed that RLIMIT_NPROC was exceeded */
+#define PF_USED_MATH 0x00002000 /* If unset the fpu must be initialized before use */
+#define PF_USED_ASYNC 0x00004000 /* Used async_schedule*(), used by module init */
+#define PF_NOFREEZE 0x00008000 /* This thread should not be frozen */
+#define PF_FROZEN 0x00010000 /* Frozen for system suspend */
+#define PF_FSTRANS 0x00020000 /* Inside a filesystem transaction */
+#define PF_KSWAPD 0x00040000 /* I am kswapd */
+#define PF_MEMALLOC_NOIO 0x00080000 /* Allocating memory without IO involved */
+#define PF_LESS_THROTTLE 0x00100000 /* Throttle me less: I clean memory */
+#define PF_KTHREAD 0x00200000 /* I am a kernel thread */
+#define PF_RANDOMIZE 0x00400000 /* Randomize virtual address space */
+#define PF_SWAPWRITE 0x00800000 /* Allowed to write to swap */
+#define PF_NO_SETAFFINITY 0x04000000 /* Userland is not allowed to meddle with cpus_allowed */
+#define PF_MCE_EARLY 0x08000000 /* Early kill for mce process policy */
+#define PF_MUTEX_TESTER 0x20000000 /* Thread belongs to the rt mutex tester */
+#define PF_FREEZER_SKIP 0x40000000 /* Freezer should not count it as freezable */
+#define PF_SUSPEND_TASK 0x80000000 /* This thread called freeze_processes() and should not be frozen */
/*
* Only the _current_ task can read/write to tsk->flags, but other
@@ -1150,33 +1229,38 @@ extern struct pid *cad_pid;
* child is not running and in turn not changing child->flags
* at the same time the parent does it.
*/
-#define clear_stopped_child_used_math(child) do { (child)->flags &= ~PF_USED_MATH; } while (0)
-#define set_stopped_child_used_math(child) do { (child)->flags |= PF_USED_MATH; } while (0)
-#define clear_used_math() clear_stopped_child_used_math(current)
-#define set_used_math() set_stopped_child_used_math(current)
+#define clear_stopped_child_used_math(child) do { (child)->flags &= ~PF_USED_MATH; } while (0)
+#define set_stopped_child_used_math(child) do { (child)->flags |= PF_USED_MATH; } while (0)
+#define clear_used_math() clear_stopped_child_used_math(current)
+#define set_used_math() set_stopped_child_used_math(current)
+
#define conditional_stopped_child_used_math(condition, child) \
do { (child)->flags &= ~PF_USED_MATH, (child)->flags |= (condition) ? PF_USED_MATH : 0; } while (0)
-#define conditional_used_math(condition) \
- conditional_stopped_child_used_math(condition, current)
+
+#define conditional_used_math(condition) conditional_stopped_child_used_math(condition, current)
+
#define copy_to_stopped_child_used_math(child) \
do { (child)->flags &= ~PF_USED_MATH, (child)->flags |= current->flags & PF_USED_MATH; } while (0)
+
/* NOTE: this will return 0 or PF_USED_MATH, it will never return 1 */
-#define tsk_used_math(p) ((p)->flags & PF_USED_MATH)
-#define used_math() tsk_used_math(current)
+#define tsk_used_math(p) ((p)->flags & PF_USED_MATH)
+#define used_math() tsk_used_math(current)
/* Per-process atomic flags. */
-#define PFA_NO_NEW_PRIVS 0 /* May not gain new privileges. */
-#define PFA_SPREAD_PAGE 1 /* Spread page cache over cpuset */
-#define PFA_SPREAD_SLAB 2 /* Spread some slab caches over cpuset */
-#define PFA_LMK_WAITING 3 /* Lowmemorykiller is waiting */
+#define PFA_NO_NEW_PRIVS 0 /* May not gain new privileges. */
+#define PFA_SPREAD_PAGE 1 /* Spread page cache over cpuset */
+#define PFA_SPREAD_SLAB 2 /* Spread some slab caches over cpuset */
+#define PFA_LMK_WAITING 3 /* Lowmemorykiller is waiting */
#define TASK_PFA_TEST(name, func) \
static inline bool task_##func(struct task_struct *p) \
{ return test_bit(PFA_##name, &p->atomic_flags); }
+
#define TASK_PFA_SET(name, func) \
static inline void task_set_##func(struct task_struct *p) \
{ set_bit(PFA_##name, &p->atomic_flags); }
+
#define TASK_PFA_CLEAR(name, func) \
static inline void task_clear_##func(struct task_struct *p) \
{ clear_bit(PFA_##name, &p->atomic_flags); }
@@ -1195,30 +1279,23 @@ TASK_PFA_CLEAR(SPREAD_SLAB, spread_slab)
TASK_PFA_TEST(LMK_WAITING, lmk_waiting)
TASK_PFA_SET(LMK_WAITING, lmk_waiting)
-static inline void tsk_restore_flags(struct task_struct *task,
- unsigned long orig_flags, unsigned long flags)
+static inline void
+tsk_restore_flags(struct task_struct *task, unsigned long orig_flags, unsigned long flags)
{
task->flags &= ~flags;
task->flags |= orig_flags & flags;
}
-extern int cpuset_cpumask_can_shrink(const struct cpumask *cur,
- const struct cpumask *trial);
-extern int task_can_attach(struct task_struct *p,
- const struct cpumask *cs_cpus_allowed);
+extern int cpuset_cpumask_can_shrink(const struct cpumask *cur, const struct cpumask *trial);
+extern int task_can_attach(struct task_struct *p, const struct cpumask *cs_cpus_allowed);
#ifdef CONFIG_SMP
-extern void do_set_cpus_allowed(struct task_struct *p,
- const struct cpumask *new_mask);
-
-extern int set_cpus_allowed_ptr(struct task_struct *p,
- const struct cpumask *new_mask);
+extern void do_set_cpus_allowed(struct task_struct *p, const struct cpumask *new_mask);
+extern int set_cpus_allowed_ptr(struct task_struct *p, const struct cpumask *new_mask);
#else
-static inline void do_set_cpus_allowed(struct task_struct *p,
- const struct cpumask *new_mask)
+static inline void do_set_cpus_allowed(struct task_struct *p, const struct cpumask *new_mask)
{
}
-static inline int set_cpus_allowed_ptr(struct task_struct *p,
- const struct cpumask *new_mask)
+static inline int set_cpus_allowed_ptr(struct task_struct *p, const struct cpumask *new_mask)
{
if (!cpumask_test_cpu(0, new_mask))
return -EINVAL;
@@ -1233,6 +1310,7 @@ static inline int set_cpus_allowed_ptr(struct task_struct *p,
extern int yield_to(struct task_struct *p, bool preempt);
extern void set_user_nice(struct task_struct *p, long nice);
extern int task_prio(const struct task_struct *p);
+
/**
* task_nice - return the nice value of a given task.
* @p: the task in question.
@@ -1243,16 +1321,15 @@ static inline int task_nice(const struct task_struct *p)
{
return PRIO_TO_NICE((p)->static_prio);
}
+
extern int can_nice(const struct task_struct *p, const int nice);
extern int task_curr(const struct task_struct *p);
extern int idle_cpu(int cpu);
-extern int sched_setscheduler(struct task_struct *, int,
- const struct sched_param *);
-extern int sched_setscheduler_nocheck(struct task_struct *, int,
- const struct sched_param *);
-extern int sched_setattr(struct task_struct *,
- const struct sched_attr *);
+extern int sched_setscheduler(struct task_struct *, int, const struct sched_param *);
+extern int sched_setscheduler_nocheck(struct task_struct *, int, const struct sched_param *);
+extern int sched_setattr(struct task_struct *, const struct sched_attr *);
extern struct task_struct *idle_task(int cpu);
+
/**
* is_idle_task - is the specified task an idle task?
* @p: the task in question.
@@ -1263,6 +1340,7 @@ static inline bool is_idle_task(const struct task_struct *p)
{
return !!(p->flags & PF_IDLE);
}
+
extern struct task_struct *curr_task(int cpu);
extern void ia64_set_curr_task(int cpu, struct task_struct *p);
@@ -1296,23 +1374,25 @@ static inline struct thread_info *task_thread_info(struct task_struct *task)
*/
extern struct task_struct *find_task_by_vpid(pid_t nr);
-extern struct task_struct *find_task_by_pid_ns(pid_t nr,
- struct pid_namespace *ns);
+extern struct task_struct *find_task_by_pid_ns(pid_t nr, struct pid_namespace *ns);
extern int wake_up_state(struct task_struct *tsk, unsigned int state);
extern int wake_up_process(struct task_struct *tsk);
extern void wake_up_new_task(struct task_struct *tsk);
+
#ifdef CONFIG_SMP
- extern void kick_process(struct task_struct *tsk);
+extern void kick_process(struct task_struct *tsk);
#else
- static inline void kick_process(struct task_struct *tsk) { }
+static inline void kick_process(struct task_struct *tsk) { }
#endif
extern void __set_task_comm(struct task_struct *tsk, const char *from, bool exec);
+
static inline void set_task_comm(struct task_struct *tsk, const char *from)
{
__set_task_comm(tsk, from, false);
}
+
extern char *get_task_comm(char *to, struct task_struct *tsk);
#ifdef CONFIG_SMP
@@ -1320,15 +1400,15 @@ void scheduler_ipi(void);
extern unsigned long wait_task_inactive(struct task_struct *, long match_state);
#else
static inline void scheduler_ipi(void) { }
-static inline unsigned long wait_task_inactive(struct task_struct *p,
- long match_state)
+static inline unsigned long wait_task_inactive(struct task_struct *p, long match_state)
{
return 1;
}
#endif
-/* set thread flags in other task's structures
- * - see asm/thread_info.h for TIF_xxxx flags available
+/*
+ * Set thread flags in other task's structures.
+ * See asm/thread_info.h for TIF_xxxx flags available:
*/
static inline void set_tsk_thread_flag(struct task_struct *tsk, int flag)
{
--
2.7.4
^ permalink raw reply related [flat|nested] 119+ messages in thread
* Re: [PATCH 00/89] Major reorganization of <linux/sched.h>
2017-02-06 13:28 [PATCH 00/89] Major reorganization of <linux/sched.h> Ingo Molnar
` (88 preceding siblings ...)
2017-02-06 13:36 ` [PATCH 89/89] sched/headers: Clean up <linux/sched.h> Ingo Molnar
@ 2017-02-06 13:39 ` Ingo Molnar
2017-02-06 21:31 ` Linus Torvalds
90 siblings, 0 replies; 119+ messages in thread
From: Ingo Molnar @ 2017-02-06 13:39 UTC (permalink / raw)
To: linux-kernel
Cc: Andrew Morton, Linus Torvalds, Mike Galbraith, Oleg Nesterov,
Peter Zijlstra, Thomas Gleixner
* Ingo Molnar <mingo@kernel.org> wrote:
> sched/core: Clean up comments
> delayacct: Include <uapi/linux/taskstats.h>
> sched/rq_clock: Consolidate the ordering of the rq_clock methods
> sched/core: Remove unnecessary #include headers
> sched/topology: Split out scheduler topology code from core.c into topology.c
> sched/topology: Split out scheduler topology interfaces from <linux/sched.h> into <linux/sched/topology.h>
I forgot to mention that the first couple of patches also do a bit of splitting up
of kernel/sched/core.c, which got pretty large over the years as well - but
technically those changes are unrelated to the linux/sched.h splitup.
Thanks,
Ingo
^ permalink raw reply [flat|nested] 119+ messages in thread
* Re: [PATCH 18/89] sched/core: Move task->mm handling methods to <linux/sched/mm.h>
2017-02-06 13:28 ` [PATCH 18/89] sched/core: Move task->mm handling methods to <linux/sched/mm.h> Ingo Molnar
@ 2017-02-06 14:28 ` Christoph Hellwig
2017-02-06 22:43 ` Ingo Molnar
0 siblings, 1 reply; 119+ messages in thread
From: Christoph Hellwig @ 2017-02-06 14:28 UTC (permalink / raw)
To: Ingo Molnar
Cc: linux-kernel, Andrew Morton, Linus Torvalds, Mike Galbraith,
Oleg Nesterov, Peter Zijlstra, Thomas Gleixner
On Mon, Feb 06, 2017 at 02:28:21PM +0100, Ingo Molnar wrote:
> Move the following task->mm helper APIs into a new header file,
> <linux/sched/mm.h>, to further reduce the size and complexity
> of <linux/sched.h>:
Is there any good reason why they can't just go into linux/mm.h?
^ permalink raw reply [flat|nested] 119+ messages in thread
* Re: [PATCH 58/89] sched/headers: Move the 'root_task_group' declaration to <linux/sched/autogroup.h>
2017-02-06 13:29 ` [PATCH 58/89] sched/headers: Move the 'root_task_group' declaration to <linux/sched/autogroup.h> Ingo Molnar
@ 2017-02-06 14:52 ` Peter Zijlstra
0 siblings, 0 replies; 119+ messages in thread
From: Peter Zijlstra @ 2017-02-06 14:52 UTC (permalink / raw)
To: Ingo Molnar
Cc: linux-kernel, Andrew Morton, Linus Torvalds, Mike Galbraith,
Oleg Nesterov, Thomas Gleixner
On Mon, Feb 06, 2017 at 02:29:01PM +0100, Ingo Molnar wrote:
> diff --git a/include/linux/sched/autogroup.h b/include/linux/sched/autogroup.h
> index c0810fe196f4..55cd496df884 100644
> --- a/include/linux/sched/autogroup.h
> +++ b/include/linux/sched/autogroup.h
> @@ -23,4 +24,8 @@ static inline void sched_autogroup_exit(struct signal_struct *sig) { }
> static inline void sched_autogroup_exit_task(struct task_struct *p) { }
> #endif
>
> +#ifdef CONFIG_CGROUP_SCHED
> +extern struct task_group root_task_group;
> +#endif /* CONFIG_CGROUP_SCHED */
> +
> #endif /* _LINUX_SCHED_AUTOGROUP_H */
That's a bit weird. It has nothing to do with autogroup.
^ permalink raw reply [flat|nested] 119+ messages in thread
* Re: [PATCH 78/89] sched/core: Remove the tsk_cpus_allowed() wrapper
2017-02-06 13:29 ` [PATCH 78/89] sched/core: Remove the tsk_cpus_allowed() wrapper Ingo Molnar
@ 2017-02-06 14:53 ` Peter Zijlstra
2017-02-06 14:59 ` Peter Zijlstra
1 sibling, 0 replies; 119+ messages in thread
From: Peter Zijlstra @ 2017-02-06 14:53 UTC (permalink / raw)
To: Ingo Molnar
Cc: linux-kernel, Andrew Morton, Linus Torvalds, Mike Galbraith,
Oleg Nesterov, Thomas Gleixner
On Mon, Feb 06, 2017 at 02:29:21PM +0100, Ingo Molnar wrote:
> So the original intention of tsk_cpus_allowed() was to 'future-proof'
> the field - but it's pretty ineffectual at that, because half of
> the code uses ->cpus_allowed directly ...
>
> Also, the wrapper makes the code longer than the original expression!
>
> So just get rid of it. This also shrinks <linux/sched.h> a bit.
Please keep this and the tsk_nr_cpus_allowed() thing. RT uses them.
^ permalink raw reply [flat|nested] 119+ messages in thread
* Re: [PATCH 78/89] sched/core: Remove the tsk_cpus_allowed() wrapper
2017-02-06 13:29 ` [PATCH 78/89] sched/core: Remove the tsk_cpus_allowed() wrapper Ingo Molnar
2017-02-06 14:53 ` Peter Zijlstra
@ 2017-02-06 14:59 ` Peter Zijlstra
2017-02-06 22:03 ` Ingo Molnar
1 sibling, 1 reply; 119+ messages in thread
From: Peter Zijlstra @ 2017-02-06 14:59 UTC (permalink / raw)
To: Ingo Molnar
Cc: linux-kernel, Andrew Morton, Linus Torvalds, Mike Galbraith,
Oleg Nesterov, Thomas Gleixner
On Mon, Feb 06, 2017 at 02:29:21PM +0100, Ingo Molnar wrote:
> diff --git a/arch/powerpc/kernel/smp.c b/arch/powerpc/kernel/smp.c
> index 54903862cf57..f40e2a5cf044 100644
> --- a/arch/powerpc/kernel/smp.c
> +++ b/arch/powerpc/kernel/smp.c
> @@ -796,7 +796,7 @@ void __init smp_cpus_done(unsigned int max_cpus)
> * se we pin us down to CPU 0 for a short while
> */
> alloc_cpumask_var(&old_mask, GFP_NOWAIT);
> - cpumask_copy(old_mask, tsk_cpus_allowed(current));
> + cpumask_copy(old_mask, ¤t->cpus_allowed);
> set_cpus_allowed_ptr(current, cpumask_of(boot_cpuid));
>
> if (smp_ops && smp_ops->setup_cpu)
> diff --git a/arch/sparc/kernel/sysfs.c b/arch/sparc/kernel/sysfs.c
> index 4808b6d23455..d63fc613e7a9 100644
> --- a/arch/sparc/kernel/sysfs.c
> +++ b/arch/sparc/kernel/sysfs.c
> @@ -106,7 +106,7 @@ static unsigned long run_on_cpu(unsigned long cpu,
> cpumask_t old_affinity;
> unsigned long ret;
>
> - cpumask_copy(&old_affinity, tsk_cpus_allowed(current));
> + cpumask_copy(&old_affinity, ¤t->cpus_allowed);
> /* should return -EINVAL to userspace */
> if (set_cpus_allowed_ptr(current, cpumask_of(cpu)))
> return 0;
> diff --git a/drivers/cpufreq/sparc-us2e-cpufreq.c b/drivers/cpufreq/sparc-us2e-cpufreq.c
> index b73feeb666f9..35ddb6da93aa 100644
> --- a/drivers/cpufreq/sparc-us2e-cpufreq.c
> +++ b/drivers/cpufreq/sparc-us2e-cpufreq.c
> @@ -234,7 +234,7 @@ static unsigned int us2e_freq_get(unsigned int cpu)
> cpumask_t cpus_allowed;
> unsigned long clock_tick, estar;
>
> - cpumask_copy(&cpus_allowed, tsk_cpus_allowed(current));
> + cpumask_copy(&cpus_allowed, ¤t->cpus_allowed);
> set_cpus_allowed_ptr(current, cpumask_of(cpu));
>
> clock_tick = sparc64_get_clock_tick(cpu) / 1000;
> @@ -252,7 +252,7 @@ static int us2e_freq_target(struct cpufreq_policy *policy, unsigned int index)
> unsigned long clock_tick, divisor, old_divisor, estar;
> cpumask_t cpus_allowed;
>
> - cpumask_copy(&cpus_allowed, tsk_cpus_allowed(current));
> + cpumask_copy(&cpus_allowed, ¤t->cpus_allowed);
> set_cpus_allowed_ptr(current, cpumask_of(cpu));
>
> new_freq = clock_tick = sparc64_get_clock_tick(cpu) / 1000;
> diff --git a/drivers/cpufreq/sparc-us3-cpufreq.c b/drivers/cpufreq/sparc-us3-cpufreq.c
> index 9bb42ba50efa..a8d86a449ca1 100644
> --- a/drivers/cpufreq/sparc-us3-cpufreq.c
> +++ b/drivers/cpufreq/sparc-us3-cpufreq.c
> @@ -82,7 +82,7 @@ static unsigned int us3_freq_get(unsigned int cpu)
> unsigned long reg;
> unsigned int ret;
>
> - cpumask_copy(&cpus_allowed, tsk_cpus_allowed(current));
> + cpumask_copy(&cpus_allowed, ¤t->cpus_allowed);
> set_cpus_allowed_ptr(current, cpumask_of(cpu));
>
> reg = read_safari_cfg();
> @@ -99,7 +99,7 @@ static int us3_freq_target(struct cpufreq_policy *policy, unsigned int index)
> unsigned long new_bits, new_freq, reg;
> cpumask_t cpus_allowed;
>
> - cpumask_copy(&cpus_allowed, tsk_cpus_allowed(current));
> + cpumask_copy(&cpus_allowed, ¤t->cpus_allowed);
> set_cpus_allowed_ptr(current, cpumask_of(cpu));
>
> new_freq = sparc64_get_clock_tick(cpu) / 1000;
Note that all those, and this is where I stopped looking, appear broken
vs userspace changing the mask right after.
^ permalink raw reply [flat|nested] 119+ messages in thread
* Re: [PATCH 11/89] sched/headers, delayacct: Move the 'struct task_delay_info' definition from <linux/sched.h> to <linux/delayacct.h>
2017-02-06 13:28 ` [PATCH 11/89] sched/headers, delayacct: Move the 'struct task_delay_info' definition from <linux/sched.h> to <linux/delayacct.h> Ingo Molnar
@ 2017-02-06 18:16 ` Linus Torvalds
2017-02-06 21:16 ` [PATCH v2 " Ingo Molnar
0 siblings, 1 reply; 119+ messages in thread
From: Linus Torvalds @ 2017-02-06 18:16 UTC (permalink / raw)
To: Ingo Molnar
Cc: Linux Kernel Mailing List, Andrew Morton, Mike Galbraith,
Oleg Nesterov, Peter Zijlstra, Thomas Gleixner
On Mon, Feb 6, 2017 at 5:28 AM, Ingo Molnar <mingo@kernel.org> wrote:
> The 'struct task_delay_info' definition does not have to be in sched.h,
> because task_struct only has a pointer to it.
>
> So move it to <linux/delayacct.h> to reduce the size of <linux/sched.h>.
>
> As an additional improvement make the type defined but empty in the
> !CONFIG_TASK_DELAY_ACCT case - to eliminate the ugly #ifdef
> around the task_struct field as well.
No. This is completely wrong.
Even if the structure is empty, the _pointer_ to the structure is not.
So now you removed the #ifdef, and the 'struct task_struct' becomes
unconditionally (and pointlessly) larger.
So your removal if the #ifdef and making that structure empty is
completely pointless: it wastes exactly the same amount of space even
when it is empty, because that pointer stays around and is not an
empty pointer.
In general, I heartily approve of the sched.h split-up, but quite
frankly, when there are almost a hundred patches, and a lot of them
are pure code movement (so they are *big*, and essentially impossible
to actually confirm), I *really* really think that this patch series
should be re-done so that it does *not* make these kinds of "clever"
changes.
I'd be much happier if the cleanups were all completely non-semantic.
Nothing like this. At least in the big patch series.
Then you can have a separate series that does things that isn't just
about code movement.
Ok?
Because these emails aren't easy to read as-is (well, part of them are
obvious, but others are "move a hundreds of lines from one file to
another").
And having to worry about "oh, and btw, hidden in the movement is this
small semantic change that may or may not be completely and utterly
bogus" makes it much much worse.
Linus
^ permalink raw reply [flat|nested] 119+ messages in thread
* Re: [PATCH 20/89] sched/headers, signals: Separate out task_struct::signal and task_struct::sighand types and accessors into <linux/sched/signal.h>
2017-02-06 13:28 ` [PATCH 20/89] sched/headers, signals: Separate out task_struct::signal and task_struct::sighand types and accessors into <linux/sched/signal.h> Ingo Molnar
@ 2017-02-06 21:11 ` Linus Torvalds
2017-02-06 21:35 ` Ingo Molnar
0 siblings, 1 reply; 119+ messages in thread
From: Linus Torvalds @ 2017-02-06 21:11 UTC (permalink / raw)
To: Ingo Molnar
Cc: Linux Kernel Mailing List, Andrew Morton, Mike Galbraith,
Oleg Nesterov, Peter Zijlstra, Thomas Gleixner
On Mon, Feb 6, 2017 at 5:28 AM, Ingo Molnar <mingo@kernel.org> wrote:
> task_struct::signal and task_struct::sighand are pointers, which would normally make it
> straightforward to not define those types in sched.h.
>
> That is not so, because the types are accompanied by a myriad of APIs (macros and inline
> functions) that dereference them.
>
> Split the types and the APIs out of sched.h and put them into a new header, <linux/sched/signal.h>.
So I still really like the split, but I absolutely *hate* slogging
though these patches. I think the patches are really badly split up.
The actual *meat* of the patch (the part you want to look at) ends up
being almost entirely hidden by the hundreds of lines of diff that are
just this part:
> arch/alpha/kernel/osf_sys.c | 2 +-
> arch/alpha/kernel/signal.c | 2 +-
> arch/alpha/kernel/traps.c | 2 +-
> arch/alpha/mm/fault.c | 2 +-
> arch/arc/kernel/traps.c | 2 +-
> arch/arc/mm/fault.c | 2 +-
> arch/arm/kernel/ptrace.c | 2 +-
> arch/arm/kernel/traps.c | 2 +-
> arch/arm/mm/alignment.c | 2 +-
> arch/arm/mm/fault.c | 2 +-
> arch/arm/mm/init.c | 1 +
> arch/arm/mm/mmap.c | 2 +-
> arch/arm/vfp/vfpmodule.c | 2 +-
> arch/arm64/kernel/fpsimd.c | 2 +-
> arch/arm64/kernel/ptrace.c | 2 +-
> arch/arm64/kernel/traps.c | 2 +-
> arch/arm64/mm/fault.c | 2 +-
> arch/arm64/mm/mmap.c | 2 +-
> arch/avr32/kernel/traps.c | 2 +-
> arch/blackfin/kernel/trace.c | 2 +-
> arch/blackfin/kernel/traps.c | 1 +
> arch/cris/mm/fault.c | 1 +
... goes on forever - lots of stupid uninteresting one-liner patches ..
and I really think this whole split-up needs to be done differently.
What I would suggest is that it's done in two phases:
(a) split up the code into a new header file, with absolutely _zero_
semantic changes, because you leave a simple
#include <linux/sched/new.h>
in the <linux/sched.h> file.
(b) a separate patch that just removes that one line from
<linux/sched.h> and then has all this other "one-line noise" stuff.
That way, in (a) it's really easy to see that you only moved things
(and the patch won't have all that noise in it), and then in (b) it's
trivial to see that all you do is fix up the #include things, because
it will all _just_ be the one-line noise.
This mix of noise and real changes is just very frustrating to look
through. Nobody sane will do it - you inevitably start skimming,
because the one-liner noise that is only relevant for the "it still
builds correctly on all configs and architectures" is simply not
human-readable.
So this request is separate from the whole "please don't make semantic
changes at the same time" issue.
I realize that you want to do the header file fixups at the same time
(in order to find out whether you missed some issue that makes the
split not useful), but from a maintenance angle and a "encourage
people to actually read through the patches" angle this patch-series
is just horrible.
Linus
^ permalink raw reply [flat|nested] 119+ messages in thread
* [PATCH v2 11/89] sched/headers, delayacct: Move the 'struct task_delay_info' definition from <linux/sched.h> to <linux/delayacct.h>
2017-02-06 18:16 ` Linus Torvalds
@ 2017-02-06 21:16 ` Ingo Molnar
0 siblings, 0 replies; 119+ messages in thread
From: Ingo Molnar @ 2017-02-06 21:16 UTC (permalink / raw)
To: Linus Torvalds, Paul E. McKenney
Cc: Linux Kernel Mailing List, Andrew Morton, Mike Galbraith,
Oleg Nesterov, Peter Zijlstra, Thomas Gleixner
* Linus Torvalds <torvalds@linux-foundation.org> wrote:
> On Mon, Feb 6, 2017 at 5:28 AM, Ingo Molnar <mingo@kernel.org> wrote:
> > The 'struct task_delay_info' definition does not have to be in sched.h,
> > because task_struct only has a pointer to it.
> >
> > So move it to <linux/delayacct.h> to reduce the size of <linux/sched.h>.
> >
> > As an additional improvement make the type defined but empty in the
> > !CONFIG_TASK_DELAY_ACCT case - to eliminate the ugly #ifdef
> > around the task_struct field as well.
>
> No. This is completely wrong.
>
> Even if the structure is empty, the _pointer_ to the structure is not.
> So now you removed the #ifdef, and the 'struct task_struct' becomes
> unconditionally (and pointlessly) larger.
Yeah, indeed, that was a brainfart: I mixed it up with the cases where it's not
pointer-included but directly embedded in task_struct. In which case such a change
is valid, see for example:
[PATCH 88/89] sched/headers: Remove #ifdefs from <linux/sched.h>
So you are completely right, and this was a simple oversight on my part, and I've
fixed it with the patch attached below, with the fix folded back and the bogus
changelog fixed as well. The new WIP.sched/core is pushed out as of this minute,
with:
387691c93599 sched/headers, delayacct: Move the 'struct task_delay_info' definition from <linux/sched.h> to <linux/delayacct.h>
So this embarrasing episode never happened!
> So your removal if the #ifdef and making that structure empty is
> completely pointless: it wastes exactly the same amount of space even
> when it is empty, because that pointer stays around and is not an
> empty pointer.
>
> In general, I heartily approve of the sched.h split-up, but quite
> frankly, when there are almost a hundred patches, and a lot of them
> are pure code movement (so they are *big*, and essentially impossible
> to actually confirm), I *really* really think that this patch series
> should be re-done so that it does *not* make these kinds of "clever"
> changes.
>
> I'd be much happier if the cleanups were all completely non-semantic.
> Nothing like this. At least in the big patch series.
>
> Then you can have a separate series that does things that isn't just
> about code movement.
>
> Ok?
Yeah, absolutely, fully agreed!
> Because these emails aren't easy to read as-is (well, part of them are
> obvious, but others are "move a hundreds of lines from one file to
> another").
>
> And having to worry about "oh, and btw, hidden in the movement is this
> small semantic change that may or may not be completely and utterly
> bogus" makes it much much worse.
This semantic change was unintentional, an embarrasing bug in essence.
I too want to keep the series a data structure invariant for the reasons you
outlined, without any actual changes to the layout of task_struct et al.
I'll review the series once more to eliminate such changes.
There's one other very small change to generated code that was essential, the
uninlining of two RCU APIs in the RCU_TINY uniprocessor case, to be able to
decouple sched.h from completion.h:
[PATCH 82/89] rcu: Separate the rcu synchronization types and APIs into <linux/rcupdate_wait.h>
... but that has to be acked by Paul anyway.
I'll try to be very careful with all this, OK?
( I've done a fair amount of boot testing as well along the way, so I'm fairly
certain there's no harmful runtime effect - this bug caused an unintentional,
unused pointer that bloated task_struct by 8 on configs that had that option
off. Famous last words ... )
Thanks,
Ingo
=============================================================================
>From 387691c93599bc932f5c1c39b0d791d1cbca3cf7 Mon Sep 17 00:00:00 2001
From: Ingo Molnar <mingo@kernel.org>
Date: Wed, 1 Feb 2017 18:00:26 +0100
Subject: [PATCH] sched/headers, delayacct: Move the 'struct task_delay_info' definition from <linux/sched.h> to <linux/delayacct.h>
The 'struct task_delay_info' definition does not have to be in sched.h,
because task_struct only has a pointer to it.
So move it to <linux/delayacct.h> to reduce the size of <linux/sched.h>.
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
include/linux/delayacct.h | 38 ++++++++++++++++++++++++++++++++++++--
include/linux/sched.h | 39 ++++-----------------------------------
2 files changed, 40 insertions(+), 37 deletions(-)
diff --git a/include/linux/delayacct.h b/include/linux/delayacct.h
index 00e60f79a9cc..4178d2493547 100644
--- a/include/linux/delayacct.h
+++ b/include/linux/delayacct.h
@@ -18,8 +18,6 @@
#define _LINUX_DELAYACCT_H
#include <uapi/linux/taskstats.h>
-#include <linux/sched.h>
-#include <linux/slab.h>
/*
* Per-task flags relevant to delay accounting
@@ -30,7 +28,43 @@
#define DELAYACCT_PF_BLKIO 0x00000002 /* I am waiting on IO */
#ifdef CONFIG_TASK_DELAY_ACCT
+struct task_delay_info {
+ spinlock_t lock;
+ unsigned int flags; /* Private per-task flags */
+
+ /* For each stat XXX, add following, aligned appropriately
+ *
+ * struct timespec XXX_start, XXX_end;
+ * u64 XXX_delay;
+ * u32 XXX_count;
+ *
+ * Atomicity of updates to XXX_delay, XXX_count protected by
+ * single lock above (split into XXX_lock if contention is an issue).
+ */
+
+ /*
+ * XXX_count is incremented on every XXX operation, the delay
+ * associated with the operation is added to XXX_delay.
+ * XXX_delay contains the accumulated delay time in nanoseconds.
+ */
+ u64 blkio_start; /* Shared by blkio, swapin */
+ u64 blkio_delay; /* wait for sync block io completion */
+ u64 swapin_delay; /* wait for swapin block io completion */
+ u32 blkio_count; /* total count of the number of sync block */
+ /* io operations performed */
+ u32 swapin_count; /* total count of the number of swapin block */
+ /* io operations performed */
+
+ u64 freepages_start;
+ u64 freepages_delay; /* wait for memory reclaim */
+ u32 freepages_count; /* total count of memory reclaim */
+};
+#endif
+#include <linux/sched.h>
+#include <linux/slab.h>
+
+#ifdef CONFIG_TASK_DELAY_ACCT
extern int delayacct_on; /* Delay accounting turned on/off */
extern struct kmem_cache *delayacct_cache;
extern void delayacct_init(void);
diff --git a/include/linux/sched.h b/include/linux/sched.h
index 4b49d159f4d5..59d28fd8e99b 100644
--- a/include/linux/sched.h
+++ b/include/linux/sched.h
@@ -901,39 +901,7 @@ struct sched_info {
};
#endif /* CONFIG_SCHED_INFO */
-#ifdef CONFIG_TASK_DELAY_ACCT
-struct task_delay_info {
- spinlock_t lock;
- unsigned int flags; /* Private per-task flags */
-
- /* For each stat XXX, add following, aligned appropriately
- *
- * struct timespec XXX_start, XXX_end;
- * u64 XXX_delay;
- * u32 XXX_count;
- *
- * Atomicity of updates to XXX_delay, XXX_count protected by
- * single lock above (split into XXX_lock if contention is an issue).
- */
-
- /*
- * XXX_count is incremented on every XXX operation, the delay
- * associated with the operation is added to XXX_delay.
- * XXX_delay contains the accumulated delay time in nanoseconds.
- */
- u64 blkio_start; /* Shared by blkio, swapin */
- u64 blkio_delay; /* wait for sync block io completion */
- u64 swapin_delay; /* wait for swapin block io completion */
- u32 blkio_count; /* total count of the number of sync block */
- /* io operations performed */
- u32 swapin_count; /* total count of the number of swapin block */
- /* io operations performed */
-
- u64 freepages_start;
- u64 freepages_delay; /* wait for memory reclaim */
- u32 freepages_count; /* total count of memory reclaim */
-};
-#endif /* CONFIG_TASK_DELAY_ACCT */
+struct task_delay_info;
static inline int sched_info_on(void)
{
@@ -1615,9 +1583,10 @@ struct task_struct {
struct page_frag task_frag;
-#ifdef CONFIG_TASK_DELAY_ACCT
- struct task_delay_info *delays;
+#ifdef CONFIG_TASK_DELAY_ACCT
+ struct task_delay_info *delays;
#endif
+
#ifdef CONFIG_FAULT_INJECTION
int make_it_fail;
#endif
^ permalink raw reply related [flat|nested] 119+ messages in thread
* Re: [PATCH 52/89] sched/headers: Split <linux/sched/task.h> out of <linux/sched.h>
2017-02-06 13:28 ` [PATCH 52/89] sched/headers: Split <linux/sched/task.h> out of <linux/sched.h> Ingo Molnar
@ 2017-02-06 21:16 ` Linus Torvalds
2017-02-06 21:41 ` Ingo Molnar
0 siblings, 1 reply; 119+ messages in thread
From: Linus Torvalds @ 2017-02-06 21:16 UTC (permalink / raw)
To: Ingo Molnar
Cc: Linux Kernel Mailing List, Andrew Morton, Mike Galbraith,
Oleg Nesterov, Peter Zijlstra, Thomas Gleixner
On Mon, Feb 6, 2017 at 5:28 AM, Ingo Molnar <mingo@kernel.org> wrote:
> diff --git a/mm/usercopy.c b/mm/usercopy.c
> index 35685a236e34..2ce59b236d23 100644
> --- a/mm/usercopy.c
> +++ b/mm/usercopy.c
> @@ -17,6 +17,11 @@
> #include <linux/mm.h>
> #include <linux/slab.h>
> #include <linux/sched.h>
> +<<<<<<< HEAD
> +=======
> +#include <linux/sched/task.h>
> +#include <linux/sched/task_stack.h>
> +>>>>>>> 9ecfbdbd2d46... fork.h fixes
> #include <asm/sections.h>
>
> enum {
This was clearly never actually tested. It was hidden in all the silly
one-liner noise. See previous email about how nobody ever looks at
that.
Linus
^ permalink raw reply [flat|nested] 119+ messages in thread
* Re: [PATCH 57/89] sched/headers: Split <linux/sched/task_stack> out of <linux/sched.h>
2017-02-06 13:29 ` [PATCH 57/89] sched/headers: Split <linux/sched/task_stack> out of <linux/sched.h> Ingo Molnar
@ 2017-02-06 21:21 ` Linus Torvalds
2017-02-06 21:54 ` Ingo Molnar
0 siblings, 1 reply; 119+ messages in thread
From: Linus Torvalds @ 2017-02-06 21:21 UTC (permalink / raw)
To: Ingo Molnar
Cc: Linux Kernel Mailing List, Andrew Morton, Mike Galbraith,
Oleg Nesterov, Peter Zijlstra, Thomas Gleixner
So this was another of those "lots of noise, hiding the actual changes".
And in the midst of all that noise was this fixup:
On Mon, Feb 6, 2017 at 5:29 AM, Ingo Molnar <mingo@kernel.org> wrote:
>
> diff --git a/arch/tile/mm/fault.c b/arch/tile/mm/fault.c
> index 1e0509a4c8bd..f58fa06a2214 100644
> --- a/arch/tile/mm/fault.c
> +++ b/arch/tile/mm/fault.c
> @@ -17,11 +17,8 @@
> #include <linux/signal.h>
> #include <linux/sched.h>
> #include <linux/sched/debug.h>
> -<<<<<<< HEAD
> -=======
> #include <linux/sched/task.h>
> #include <linux/sched/task_stack.h>
> ->>>>>>> 9ecfbdbd2d46... fork.h fixes
> #include <linux/kernel.h>
> #include <linux/errno.h>
> #include <linux/string.h>
which obviously means that I didn't even notice this other conflict
marker earlier in the series.
Anyway, I'm finding the end result pleasing, but the steps having
small issues like this really makes me want the final series to be
cleaned-up.
Linus
^ permalink raw reply [flat|nested] 119+ messages in thread
* Re: [PATCH 88/89] sched/headers: Remove #ifdefs from <linux/sched.h>
2017-02-06 13:35 ` [PATCH 88/89] sched/headers: Remove #ifdefs from <linux/sched.h> Ingo Molnar
@ 2017-02-06 21:26 ` Linus Torvalds
0 siblings, 0 replies; 119+ messages in thread
From: Linus Torvalds @ 2017-02-06 21:26 UTC (permalink / raw)
To: Ingo Molnar
Cc: Linux Kernel Mailing List, Andrew Morton, Mike Galbraith,
Oleg Nesterov, Peter Zijlstra, Thomas Gleixner
On Mon, Feb 6, 2017 at 5:35 AM, Ingo Molnar <mingo@kernel.org> wrote:
> We can remove two pairs of #ifdefs by defining structures in a smarter way.
Ok, this time the zero-sized structure actually works and is fine.
Linus
^ permalink raw reply [flat|nested] 119+ messages in thread
* Re: [PATCH 00/89] Major reorganization of <linux/sched.h>
2017-02-06 13:28 [PATCH 00/89] Major reorganization of <linux/sched.h> Ingo Molnar
` (89 preceding siblings ...)
2017-02-06 13:39 ` [PATCH 00/89] Major reorganization of <linux/sched.h> Ingo Molnar
@ 2017-02-06 21:31 ` Linus Torvalds
2017-02-06 22:13 ` Ingo Molnar
90 siblings, 1 reply; 119+ messages in thread
From: Linus Torvalds @ 2017-02-06 21:31 UTC (permalink / raw)
To: Ingo Molnar
Cc: Linux Kernel Mailing List, Andrew Morton, Mike Galbraith,
Oleg Nesterov, Peter Zijlstra, Thomas Gleixner
On Mon, Feb 6, 2017 at 5:28 AM, Ingo Molnar <mingo@kernel.org> wrote:
> So 25+ years ago, in Linux-0.01, include/linux/sched.h was already
> the biggest core kernel header file: [...]
Ok, so having tried to look through this series I do like it, but I'd
be *really* much happier if more of it was just verifiably a semantic
no-op.
There were all those small things in there (Peter pointed out those
cpumask things I wouldn't for the life of me have noticed) that were
really subtle, and were really hidden by the fact that there was just
a lot of non-semantic changes.
Linus
^ permalink raw reply [flat|nested] 119+ messages in thread
* Re: [PATCH 20/89] sched/headers, signals: Separate out task_struct::signal and task_struct::sighand types and accessors into <linux/sched/signal.h>
2017-02-06 21:11 ` Linus Torvalds
@ 2017-02-06 21:35 ` Ingo Molnar
2017-02-06 21:57 ` Linus Torvalds
0 siblings, 1 reply; 119+ messages in thread
From: Ingo Molnar @ 2017-02-06 21:35 UTC (permalink / raw)
To: Linus Torvalds
Cc: Linux Kernel Mailing List, Andrew Morton, Mike Galbraith,
Oleg Nesterov, Peter Zijlstra, Thomas Gleixner
* Linus Torvalds <torvalds@linux-foundation.org> wrote:
> On Mon, Feb 6, 2017 at 5:28 AM, Ingo Molnar <mingo@kernel.org> wrote:
> > task_struct::signal and task_struct::sighand are pointers, which would normally make it
> > straightforward to not define those types in sched.h.
> >
> > That is not so, because the types are accompanied by a myriad of APIs (macros and inline
> > functions) that dereference them.
> >
> > Split the types and the APIs out of sched.h and put them into a new header, <linux/sched/signal.h>.
>
> So I still really like the split, but I absolutely *hate* slogging
> though these patches. I think the patches are really badly split up.
>
> The actual *meat* of the patch (the part you want to look at) ends up
> being almost entirely hidden by the hundreds of lines of diff that are
> just this part:
Yeah, in some cases I solved this problem by doing a 'preparatory patch', such as:
[PATCH 81/89] sched/headers: Remove spurious <linux/sched.h> inclusion dependencies
which are easy to review and which are then followed by the 'meat patches', such
as:
[PATCH 85/89] hrtimer: Remove the <linux/wait.h> include from <linux/hrtimer.h>
[PATCH 86/89] sched/headers: Remove the <linux/topology.h> include from <linux/sched.h>
I considered doing this for every patch but decided against it due to the high
patch count...
I was in a bit of a catch-22: the only way to demonstrate the utility of so many
intrusive changes was to achieve some true reduction in generated code size ...
:-/
Will do some more splitting up, in the fashion you suggest, I fully agree with it:
> and I really think this whole split-up needs to be done differently.
>
> What I would suggest is that it's done in two phases:
>
> (a) split up the code into a new header file, with absolutely _zero_
> semantic changes, because you leave a simple
>
> #include <linux/sched/new.h>
>
> in the <linux/sched.h> file.
>
> (b) a separate patch that just removes that one line from
> <linux/sched.h> and then has all this other "one-line noise" stuff.
Yeah.
BTW., most of the real work was in identifying and generating that "noise" - but
to reviewers it's obviously the least interesting bits.
Also note that beyond the header splitup the "noise" is actually what improves
kernel code the most all around, as changes like this:
--- a/kernel/utsname_sysctl.c
+++ b/kernel/utsname_sysctl.c
@@ -14,6 +14,7 @@
#include <linux/utsname.h>
#include <linux/sysctl.h>
#include <linux/wait.h>
+#include <linux/rwsem.h>
#ifdef CONFIG_PROC_SYSCTL
... make implicit header dependencies more explicit and decrease our existing
spaghetti.
But the repetitive header dependency fixes/extensions should be clearly identified
as such and shouldn't mix in other, more complex changes - I'll try to come up
with a patch title pattern as well to make it easier to skip through these during
review.
How about something like this:
[PATCH] sched/headers: Propagate new header dependencies after changes to <linux/sched/task.h>
[PATCH] sched/headers: Propagate new header dependencies after changes to <linux/sched/stat.h>
[PATCH] sched/headers: Propagate new header dependencies after changes to <linux/sched/signal.h>
[PATCH] sched/headers: Propagate new header dependencies before changes to <linux/sched.h>
[PATCH] sched/headers: Propagate new header dependencies before changes to <linux/timer.h>
....
That way during review you can skip over these without much effort, you only have
to check that these patches confirm to the expected 'trivial one line noise'
pattern and don't do anything else.
The postfix style title will also make these stand out visually in the series.
> That way, in (a) it's really easy to see that you only moved things (and the
> patch won't have all that noise in it), and then in (b) it's trivial to see that
> all you do is fix up the #include things, because it will all _just_ be the
> one-line noise.
>
> This mix of noise and real changes is just very frustrating to look through.
> Nobody sane will do it - you inevitably start skimming, because the one-liner
> noise that is only relevant for the "it still builds correctly on all configs
> and architectures" is simply not human-readable.
>
> So this request is separate from the whole "please don't make semantic changes
> at the same time" issue.
>
> I realize that you want to do the header file fixups at the same time (in order
> to find out whether you missed some issue that makes the split not useful), but
> from a maintenance angle and a "encourage people to actually read through the
> patches" angle this patch-series is just horrible.
No, your request is entirely fair, and I considered such techniques and did it in
a few cases, and only decided against it to keep the patch count of the series
down. Doing this will increase the patch count by at least 50%.
Will post them in 4 groups of 40 patches each or so - would that work for you?
Thanks,
Ingo
^ permalink raw reply [flat|nested] 119+ messages in thread
* Re: [PATCH 52/89] sched/headers: Split <linux/sched/task.h> out of <linux/sched.h>
2017-02-06 21:16 ` Linus Torvalds
@ 2017-02-06 21:41 ` Ingo Molnar
2017-02-06 21:45 ` Ingo Molnar
0 siblings, 1 reply; 119+ messages in thread
From: Ingo Molnar @ 2017-02-06 21:41 UTC (permalink / raw)
To: Linus Torvalds
Cc: Linux Kernel Mailing List, Andrew Morton, Mike Galbraith,
Oleg Nesterov, Peter Zijlstra, Thomas Gleixner
* Linus Torvalds <torvalds@linux-foundation.org> wrote:
> On Mon, Feb 6, 2017 at 5:28 AM, Ingo Molnar <mingo@kernel.org> wrote:
> > diff --git a/mm/usercopy.c b/mm/usercopy.c
> > index 35685a236e34..2ce59b236d23 100644
> > --- a/mm/usercopy.c
> > +++ b/mm/usercopy.c
> > @@ -17,6 +17,11 @@
> > #include <linux/mm.h>
> > #include <linux/slab.h>
> > #include <linux/sched.h>
> > +<<<<<<< HEAD
> > +=======
> > +#include <linux/sched/task.h>
> > +#include <linux/sched/task_stack.h>
> > +>>>>>>> 9ecfbdbd2d46... fork.h fixes
> > #include <asm/sections.h>
> >
> > enum {
>
> This was clearly never actually tested. It was hidden in all the silly
> one-liner noise. See previous email about how nobody ever looks at
> that.
Ouch. Note that I did test the TILE cross-build on the resulting tree:
testing sparc: -git: pass ( 0), -tip: pass ( 0)
testing tile: -git: pass ( 2), -tip: pass ( 2)
^^^^^^^^^^^^^^^^^^^
testing um: -git: pass ( 0), -tip: pass ( 0)
... but this ugliness was hidden by the fact that a later patch removed the merge
artifact:
[PATCH 57/89] sched/headers: Split <linux/sched/task_stack> out of <linux/sched.h>
diff --git a/arch/tile/mm/fault.c b/arch/tile/mm/fault.c
index 1e0509a4c8bd..f58fa06a2214 100644
--- a/arch/tile/mm/fault.c
+++ b/arch/tile/mm/fault.c
@@ -17,11 +17,8 @@
#include <linux/signal.h>
#include <linux/sched.h>
#include <linux/sched/debug.h>
-<<<<<<< HEAD
-=======
#include <linux/sched/task.h>
#include <linux/sched/task_stack.h>
->>>>>>> 9ecfbdbd2d46... fork.h fixes
#include <linux/kernel.h>
#include <linux/errno.h>
#include <linux/string.h>
... which doesn't excuse this in any way, of course. I've fixed it and I've double
checked there are no other merge artifacts.
Not sure what happened there, my workflow usually warns about merge artifacts :-/
These appear to have been the only such incidents:
triton:~/tip> git log -p 248fd141c4c1..WIP.sched/core | grep '===='
-=======
-=======
+=======
+=======
... but my confidence in this series just dropped rather significantly, will do a
full restructuring & review of it.
Thanks,
Ingo
^ permalink raw reply related [flat|nested] 119+ messages in thread
* Re: [PATCH 52/89] sched/headers: Split <linux/sched/task.h> out of <linux/sched.h>
2017-02-06 21:41 ` Ingo Molnar
@ 2017-02-06 21:45 ` Ingo Molnar
0 siblings, 0 replies; 119+ messages in thread
From: Ingo Molnar @ 2017-02-06 21:45 UTC (permalink / raw)
To: Linus Torvalds
Cc: Linux Kernel Mailing List, Andrew Morton, Mike Galbraith,
Oleg Nesterov, Peter Zijlstra, Thomas Gleixner
* Ingo Molnar <mingo@kernel.org> wrote:
>
> * Linus Torvalds <torvalds@linux-foundation.org> wrote:
>
> > On Mon, Feb 6, 2017 at 5:28 AM, Ingo Molnar <mingo@kernel.org> wrote:
> > > diff --git a/mm/usercopy.c b/mm/usercopy.c
> > > index 35685a236e34..2ce59b236d23 100644
> > > --- a/mm/usercopy.c
> > > +++ b/mm/usercopy.c
> > > @@ -17,6 +17,11 @@
> > > #include <linux/mm.h>
> > > #include <linux/slab.h>
> > > #include <linux/sched.h>
> > > +<<<<<<< HEAD
> > > +=======
> > > +#include <linux/sched/task.h>
> > > +#include <linux/sched/task_stack.h>
> > > +>>>>>>> 9ecfbdbd2d46... fork.h fixes
> > > #include <asm/sections.h>
> > >
> > > enum {
> >
> > This was clearly never actually tested. It was hidden in all the silly
> > one-liner noise. See previous email about how nobody ever looks at
> > that.
>
> Ouch. Note that I did test the TILE cross-build on the resulting tree:
>
> testing sparc: -git: pass ( 0), -tip: pass ( 0)
> testing tile: -git: pass ( 2), -tip: pass ( 2)
> ^^^^^^^^^^^^^^^^^^^
> testing um: -git: pass ( 0), -tip: pass ( 0)
>
> ... but this ugliness was hidden by the fact that a later patch removed the merge
> artifact:
>
> [PATCH 57/89] sched/headers: Split <linux/sched/task_stack> out of <linux/sched.h>
>
> diff --git a/arch/tile/mm/fault.c b/arch/tile/mm/fault.c
> index 1e0509a4c8bd..f58fa06a2214 100644
> --- a/arch/tile/mm/fault.c
> +++ b/arch/tile/mm/fault.c
> @@ -17,11 +17,8 @@
> #include <linux/signal.h>
> #include <linux/sched.h>
> #include <linux/sched/debug.h>
> -<<<<<<< HEAD
> -=======
> #include <linux/sched/task.h>
> #include <linux/sched/task_stack.h>
> ->>>>>>> 9ecfbdbd2d46... fork.h fixes
> #include <linux/kernel.h>
> #include <linux/errno.h>
> #include <linux/string.h>
>
> ... which doesn't excuse this in any way, of course. I've fixed it and I've double
> checked there are no other merge artifacts.
>
> Not sure what happened there, my workflow usually warns about merge artifacts :-/
>
> These appear to have been the only such incidents:
>
> triton:~/tip> git log -p 248fd141c4c1..WIP.sched/core | grep '===='
> -=======
> -=======
> +=======
> +=======
Actually, this was already in the fixed tree, so there was another merge
artifact...
Thanks,
Ingo
^ permalink raw reply [flat|nested] 119+ messages in thread
* Re: [PATCH 57/89] sched/headers: Split <linux/sched/task_stack> out of <linux/sched.h>
2017-02-06 21:21 ` Linus Torvalds
@ 2017-02-06 21:54 ` Ingo Molnar
2017-02-07 8:07 ` Geert Uytterhoeven
0 siblings, 1 reply; 119+ messages in thread
From: Ingo Molnar @ 2017-02-06 21:54 UTC (permalink / raw)
To: Linus Torvalds
Cc: Linux Kernel Mailing List, Andrew Morton, Mike Galbraith,
Oleg Nesterov, Peter Zijlstra, Thomas Gleixner
* Linus Torvalds <torvalds@linux-foundation.org> wrote:
> So this was another of those "lots of noise, hiding the actual changes".
>
> And in the midst of all that noise was this fixup:
>
> On Mon, Feb 6, 2017 at 5:29 AM, Ingo Molnar <mingo@kernel.org> wrote:
> >
> > diff --git a/arch/tile/mm/fault.c b/arch/tile/mm/fault.c
> > index 1e0509a4c8bd..f58fa06a2214 100644
> > --- a/arch/tile/mm/fault.c
> > +++ b/arch/tile/mm/fault.c
> > @@ -17,11 +17,8 @@
> > #include <linux/signal.h>
> > #include <linux/sched.h>
> > #include <linux/sched/debug.h>
> > -<<<<<<< HEAD
> > -=======
> > #include <linux/sched/task.h>
> > #include <linux/sched/task_stack.h>
> > ->>>>>>> 9ecfbdbd2d46... fork.h fixes
> > #include <linux/kernel.h>
> > #include <linux/errno.h>
> > #include <linux/string.h>
>
> which obviously means that I didn't even notice this other conflict
> marker earlier in the series.
>
> Anyway, I'm finding the end result pleasing, but the steps having
> small issues like this really makes me want the final series to be
> cleaned-up.
Yeah, absolutely. :-/
Wondering why Git allowed me to be so stupid with those leftover merge markers.
Git usually doesn't even allow me to commit them so I have these tuned out as a
possibility. This was just a regular git rebase -i flow, to back-merge fixes and
reorder/squash patches - nothing fancy that I remember - only the occasional
--onto option. I'm using Git 2.7.4.
Note that the title has a problem too:
[PATCH 57/89] sched/headers: Split <linux/sched/task_stack> out of <linux/sched.h>
That should say <linux/sched/task_stack.h>.
I'll do the further splitting up, will address all the other review feedback and
will go over it with a fine comb before reposting.
Thanks,
Ingo
^ permalink raw reply [flat|nested] 119+ messages in thread
* Re: [PATCH 20/89] sched/headers, signals: Separate out task_struct::signal and task_struct::sighand types and accessors into <linux/sched/signal.h>
2017-02-06 21:35 ` Ingo Molnar
@ 2017-02-06 21:57 ` Linus Torvalds
2017-02-06 22:38 ` Ingo Molnar
0 siblings, 1 reply; 119+ messages in thread
From: Linus Torvalds @ 2017-02-06 21:57 UTC (permalink / raw)
To: Ingo Molnar
Cc: Linux Kernel Mailing List, Andrew Morton, Mike Galbraith,
Oleg Nesterov, Peter Zijlstra, Thomas Gleixner
On Mon, Feb 6, 2017 at 1:35 PM, Ingo Molnar <mingo@kernel.org> wrote:
>
>
> BTW., most of the real work was in identifying and generating that "noise" - but
> to reviewers it's obviously the least interesting bits.
>
> Also note that beyond the header splitup the "noise" is actually what improves
> kernel code the most all around
Oh, absolutely agreed. The "noise" is obviously the most important
part and the most challenging to actually generate (although maybe
some automation tool could do a lot of this in a perfect world).
But the noise is also the one where verification is pretty much purely
about "does it still compile", so from a human angle, once the noise
has been generated, it's not actually all that interesting.
It's kind of like being NP complete: verification of the noise is
"trivial" and not all that interesting - once the solution has been
find.
> Will post them in 4 groups of 40 patches each or so - would that work for you?
I suspect that will be a lot easier.to look at (with at least one
series basically being "there's no point in a human even looking at
it, other than to verify that it's purely #include changes").
It would be good to make sure it also ends up bisecting nicely,
because *if* some problem happens, it would be nice if the bisect then
clearly points to either "oh, some mistake must have happened during
code movement" vs "ooh, some really subtle issue with a missed include
causing some odd fallback code".
Because we *do* end up having code in C files that does things like
#ifndef ARCH_HAS_XYZ
static inline void my_generic_xyz_implementation(...)
...
#endif
so you can end up in the situation that if some specific header file
wasn't included correctly, the code will still work, but now it will
use the generic definition rather than the specific one it was
supposed to use.
So these re-organizations do have the potential to cause odd "silent"
breakage. Most breakage by far should presumably be of the type "it
doesn't compile and it's very obvious that the header file movement
missed something", but we *could* have that kind of subtle "it
compiles, and _almost_ even works, but has a cornercase that is
broken" that could be fingered by a bisect.
That's when a good split of patches would be really nice to have too,
where a patch does either code movement or does header file
organization movement, but not both.
So it's not _just_ about actually looking at the patches and trying to
make sense of them.
Linus
^ permalink raw reply [flat|nested] 119+ messages in thread
* Re: [PATCH 78/89] sched/core: Remove the tsk_cpus_allowed() wrapper
2017-02-06 14:59 ` Peter Zijlstra
@ 2017-02-06 22:03 ` Ingo Molnar
2017-02-07 8:06 ` Peter Zijlstra
0 siblings, 1 reply; 119+ messages in thread
From: Ingo Molnar @ 2017-02-06 22:03 UTC (permalink / raw)
To: Peter Zijlstra
Cc: linux-kernel, Andrew Morton, Linus Torvalds, Mike Galbraith,
Oleg Nesterov, Thomas Gleixner
* Peter Zijlstra <peterz@infradead.org> wrote:
> > +++ b/arch/powerpc/kernel/smp.c
> > +++ b/arch/sparc/kernel/sysfs.c
> > +++ b/drivers/cpufreq/sparc-us2e-cpufreq.c
> > +++ b/drivers/cpufreq/sparc-us3-cpufreq.c
> > - cpumask_copy(&cpus_allowed, tsk_cpus_allowed(current));
> > + cpumask_copy(&cpus_allowed, ¤t->cpus_allowed);
>
> Note that all those, and this is where I stopped looking, appear broken vs
> userspace changing the mask right after.
But these are pre-existing bugs in code twidding ->cpus_allowed, not caused by my
patch, right?
I.e. my changes made you notice pre-existing bugs.
Thanks,
Ingo
^ permalink raw reply [flat|nested] 119+ messages in thread
* Re: [PATCH 00/89] Major reorganization of <linux/sched.h>
2017-02-06 21:31 ` Linus Torvalds
@ 2017-02-06 22:13 ` Ingo Molnar
2017-02-07 8:08 ` Peter Zijlstra
0 siblings, 1 reply; 119+ messages in thread
From: Ingo Molnar @ 2017-02-06 22:13 UTC (permalink / raw)
To: Linus Torvalds
Cc: Linux Kernel Mailing List, Andrew Morton, Mike Galbraith,
Oleg Nesterov, Peter Zijlstra, Thomas Gleixner
* Linus Torvalds <torvalds@linux-foundation.org> wrote:
> On Mon, Feb 6, 2017 at 5:28 AM, Ingo Molnar <mingo@kernel.org> wrote:
> > So 25+ years ago, in Linux-0.01, include/linux/sched.h was already
> > the biggest core kernel header file: [...]
>
> Ok, so having tried to look through this series I do like it, but I'd be
> *really* much happier if more of it was just verifiably a semantic no-op.
Yeah - that was the intention.
It's really hard to verify it in an automated fashion I think, in a cross arch
way. I did a sizeof(task_struct) before/after check on x86 defconfig, which did
not uncover the extra pointer on CONFIG_TASK_DELAY_ACCT=n, because defconfig has
that enabled...
On the latest tree I've done a wider test of sizeof(task_struct):
allnoconfig defconfig allmodconfig
-----------------------------------------------------------
before: 0x1400 0x19c0 0x3f00
after: 0x1400 0x19c0 0x3f00
Which seems to support my intention that the series should be an overall invariant
on 'struct task_struct' semantics.
> There were all those small things in there (Peter pointed out those cpumask
> things I wouldn't for the life of me have noticed) that were really subtle, and
> were really hidden by the fact that there was just a lot of non-semantic
> changes.
I think the ->cpus_allowed bugs Peter noticed are pre-existing - that patch
doesn't intend to make any semantic changes.
Thanks,
Ingo
^ permalink raw reply [flat|nested] 119+ messages in thread
* Re: [PATCH 20/89] sched/headers, signals: Separate out task_struct::signal and task_struct::sighand types and accessors into <linux/sched/signal.h>
2017-02-06 21:57 ` Linus Torvalds
@ 2017-02-06 22:38 ` Ingo Molnar
0 siblings, 0 replies; 119+ messages in thread
From: Ingo Molnar @ 2017-02-06 22:38 UTC (permalink / raw)
To: Linus Torvalds
Cc: Linux Kernel Mailing List, Andrew Morton, Mike Galbraith,
Oleg Nesterov, Peter Zijlstra, Thomas Gleixner
* Linus Torvalds <torvalds@linux-foundation.org> wrote:
> On Mon, Feb 6, 2017 at 1:35 PM, Ingo Molnar <mingo@kernel.org> wrote:
> >
> >
> > BTW., most of the real work was in identifying and generating that "noise" - but
> > to reviewers it's obviously the least interesting bits.
> >
> > Also note that beyond the header splitup the "noise" is actually what improves
> > kernel code the most all around
>
> Oh, absolutely agreed. The "noise" is obviously the most important
> part and the most challenging to actually generate (although maybe
> some automation tool could do a lot of this in a perfect world).
BTW., I used half-automation: an (imperfect...) script to recursively follow
header dependencies to identify the places which I then changed manually, and a
lot of testing to identify the cases the script missed (or where I made a manual
mistake).
I started out with a testing based approach alone, but that did not scale very
well and I had the feeling that it did not converge fast enough either to lead to
a palatable end result.
Didn't want to invest too much into tooling, as I'd expect this to be a one-off
effort for one of the worst header dependency problems we have in the kernel
today. Fortunately most of our other headers are in a much better shape!
> But the noise is also the one where verification is pretty much purely
> about "does it still compile", so from a human angle, once the noise
> has been generated, it's not actually all that interesting.
Yeah, and the repetitive diffs over hundreds of files are actively hindering
review.
> It's kind of like being NP complete: verification of the noise is
> "trivial" and not all that interesting - once the solution has been
> find.
>
> > Will post them in 4 groups of 40 patches each or so - would that work for you?
>
> I suspect that will be a lot easier.to look at (with at least one
> series basically being "there's no point in a human even looking at
> it, other than to verify that it's purely #include changes").
>
> It would be good to make sure it also ends up bisecting nicely,
> because *if* some problem happens, it would be nice if the bisect then
> clearly points to either "oh, some mistake must have happened during
> code movement" vs "ooh, some really subtle issue with a missed include
> causing some odd fallback code".
Yeah, so I tested it intensively as I was developing it, so barring
merge/backmerge/conflict-resolution artifacts that happen during rebase (and they
did happen ...) there shouldn't be any conceptual bisectability hickups in the
lineup. It wasn't a 'break it and make it work at the end of the series'
development flow, it was a 'make it work at every commit' approach.
I'll do some bisection validation on the final result to make sure bisectability
did not bitrot during all the restructuring. Problem is, even on a beefy 60-core
server with 256 GB RAM a full cross-build test runs for half an hour just for
defconfigs - so a 150-patch series bisectability test would run for over 3 days
...
What I can do is some more careful manual review plus the re-testing of a couple
of random points in the middle of the series - and of course the testing of the
final result. This should make it reasonably certain that the good bisectability
that was validated during earlier versions of the patch-set has a good chance of
being present in the final series as well.
> Because we *do* end up having code in C files that does things like
>
> #ifndef ARCH_HAS_XYZ
> static inline void my_generic_xyz_implementation(...)
> ...
> #endif
>
> so you can end up in the situation that if some specific header file
> wasn't included correctly, the code will still work, but now it will
> use the generic definition rather than the specific one it was
> supposed to use.
Yeah, indeed.
> So these re-organizations do have the potential to cause odd "silent"
> breakage. Most breakage by far should presumably be of the type "it
> doesn't compile and it's very obvious that the header file movement
> missed something", but we *could* have that kind of subtle "it
> compiles, and _almost_ even works, but has a cornercase that is
> broken" that could be fingered by a bisect.
>
> That's when a good split of patches would be really nice to have too,
> where a patch does either code movement or does header file
> organization movement, but not both.
>
> So it's not _just_ about actually looking at the patches and trying to
> make sense of them.
Ok, I'm sold on this! This bisectability argument makes me feel much better about
the resulting 150+ patch-count.
Thanks,
Ingo
^ permalink raw reply [flat|nested] 119+ messages in thread
* Re: [PATCH 18/89] sched/core: Move task->mm handling methods to <linux/sched/mm.h>
2017-02-06 14:28 ` Christoph Hellwig
@ 2017-02-06 22:43 ` Ingo Molnar
2017-02-07 7:30 ` Ingo Molnar
0 siblings, 1 reply; 119+ messages in thread
From: Ingo Molnar @ 2017-02-06 22:43 UTC (permalink / raw)
To: Christoph Hellwig
Cc: linux-kernel, Andrew Morton, Linus Torvalds, Mike Galbraith,
Oleg Nesterov, Peter Zijlstra, Thomas Gleixner
* Christoph Hellwig <hch@infradead.org> wrote:
> On Mon, Feb 06, 2017 at 02:28:21PM +0100, Ingo Molnar wrote:
> > Move the following task->mm helper APIs into a new header file,
> > <linux/sched/mm.h>, to further reduce the size and complexity
> > of <linux/sched.h>:
>
> Is there any good reason why they can't just go into linux/mm.h?
So mm.h is pretty large already, and I wanted to preserve the natural API and
header separation that was the result of these APIs being in sched.h. Many smaller
headers are so much easier to maintain, and they are much more readable as well in
my experience.
mm.h and mm_types.h should probably be split up some more: on a defconfig kernel
mm.i is about 18,800 lines long, with a size of 0.65 MB. There's a lot of wasted
energy building all that again and again, while drivers typically need only a
small fraction of those definitions. Not to mention that large headers typically
result in lower code quality and poorer code organization as well.
But we could move the new header to <linux/mm_task.h> or so?
Thanks,
Ingo
^ permalink raw reply [flat|nested] 119+ messages in thread
* Re: [PATCH 18/89] sched/core: Move task->mm handling methods to <linux/sched/mm.h>
2017-02-06 22:43 ` Ingo Molnar
@ 2017-02-07 7:30 ` Ingo Molnar
0 siblings, 0 replies; 119+ messages in thread
From: Ingo Molnar @ 2017-02-07 7:30 UTC (permalink / raw)
To: Christoph Hellwig
Cc: linux-kernel, Andrew Morton, Linus Torvalds, Mike Galbraith,
Oleg Nesterov, Peter Zijlstra, Thomas Gleixner
* Ingo Molnar <mingo@kernel.org> wrote:
>
> * Christoph Hellwig <hch@infradead.org> wrote:
>
> > On Mon, Feb 06, 2017 at 02:28:21PM +0100, Ingo Molnar wrote:
> > > Move the following task->mm helper APIs into a new header file,
> > > <linux/sched/mm.h>, to further reduce the size and complexity
> > > of <linux/sched.h>:
> >
> > Is there any good reason why they can't just go into linux/mm.h?
>
> So mm.h is pretty large already, and I wanted to preserve the natural API and
> header separation that was the result of these APIs being in sched.h. Many
> smaller headers are so much easier to maintain, and they are much more readable
> as well in my experience.
The other big reason is that putting these APIs (mmget()/mmput()/etc.) into mm.h
would cause mm.h to include sched.h, which would make the whole major kernel
header coupling situation I'm trying to improve with this series so much worse all
around.
The current stats are: <linux/mm.h> is included in almost as many files as
<linux/sched.h>, and about half of them don't include <linux/sched.h>. So adding
these APIs would significantly bloat the kernel in the header build space. So we
really don't want to include sched.h in mm.h.
Thanks,
Ingo
^ permalink raw reply [flat|nested] 119+ messages in thread
* Re: [PATCH 78/89] sched/core: Remove the tsk_cpus_allowed() wrapper
2017-02-06 22:03 ` Ingo Molnar
@ 2017-02-07 8:06 ` Peter Zijlstra
0 siblings, 0 replies; 119+ messages in thread
From: Peter Zijlstra @ 2017-02-07 8:06 UTC (permalink / raw)
To: Ingo Molnar
Cc: linux-kernel, Andrew Morton, Linus Torvalds, Mike Galbraith,
Oleg Nesterov, Thomas Gleixner
On Mon, Feb 06, 2017 at 11:03:08PM +0100, Ingo Molnar wrote:
>
> * Peter Zijlstra <peterz@infradead.org> wrote:
>
> > > +++ b/arch/powerpc/kernel/smp.c
> > > +++ b/arch/sparc/kernel/sysfs.c
> > > +++ b/drivers/cpufreq/sparc-us2e-cpufreq.c
> > > +++ b/drivers/cpufreq/sparc-us3-cpufreq.c
>
> > > - cpumask_copy(&cpus_allowed, tsk_cpus_allowed(current));
> > > + cpumask_copy(&cpus_allowed, ¤t->cpus_allowed);
> >
> > Note that all those, and this is where I stopped looking, appear broken vs
> > userspace changing the mask right after.
>
> But these are pre-existing bugs in code twidding ->cpus_allowed, not caused by my
> patch, right?
Yes..
> I.e. my changes made you notice pre-existing bugs.
I think I spotted them when I made the tsk_cpus_allowed() thing as well.
Just wanted to call them out again.
^ permalink raw reply [flat|nested] 119+ messages in thread
* Re: [PATCH 57/89] sched/headers: Split <linux/sched/task_stack> out of <linux/sched.h>
2017-02-06 21:54 ` Ingo Molnar
@ 2017-02-07 8:07 ` Geert Uytterhoeven
2017-02-07 8:13 ` Ingo Molnar
0 siblings, 1 reply; 119+ messages in thread
From: Geert Uytterhoeven @ 2017-02-07 8:07 UTC (permalink / raw)
To: Ingo Molnar
Cc: Linus Torvalds, Linux Kernel Mailing List, Andrew Morton,
Mike Galbraith, Oleg Nesterov, Peter Zijlstra, Thomas Gleixner
Hi Ingo,
On Mon, Feb 6, 2017 at 10:54 PM, Ingo Molnar <mingo@kernel.org> wrote:
> Wondering why Git allowed me to be so stupid with those leftover merge markers.
> Git usually doesn't even allow me to commit them so I have these tuned out as a
> possibility. This was just a regular git rebase -i flow, to back-merge fixes and
> reorder/squash patches - nothing fancy that I remember - only the occasional
> --onto option. I'm using Git 2.7.4.
Git complains about the merge conflicts, and refuses to commit the result
as long as you haven't resolved them, but it will happily commit everything
you add using "git add -u", incl. merge markers.
Gr{oetje,eeting}s,
Geert
--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-m68k.org
In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
-- Linus Torvalds
^ permalink raw reply [flat|nested] 119+ messages in thread
* Re: [PATCH 00/89] Major reorganization of <linux/sched.h>
2017-02-06 22:13 ` Ingo Molnar
@ 2017-02-07 8:08 ` Peter Zijlstra
0 siblings, 0 replies; 119+ messages in thread
From: Peter Zijlstra @ 2017-02-07 8:08 UTC (permalink / raw)
To: Ingo Molnar
Cc: Linus Torvalds, Linux Kernel Mailing List, Andrew Morton,
Mike Galbraith, Oleg Nesterov, Thomas Gleixner
On Mon, Feb 06, 2017 at 11:13:59PM +0100, Ingo Molnar wrote:
> * Linus Torvalds <torvalds@linux-foundation.org> wrote:
> > There were all those small things in there (Peter pointed out those cpumask
> > things I wouldn't for the life of me have noticed) that were really subtle, and
> > were really hidden by the fact that there was just a lot of non-semantic
> > changes.
>
> I think the ->cpus_allowed bugs Peter noticed are pre-existing - that patch
> doesn't intend to make any semantic changes.
Correct, those are pre-existing, just noticed then (again) because the
changes made me look at the code.
^ permalink raw reply [flat|nested] 119+ messages in thread
* Re: [PATCH 57/89] sched/headers: Split <linux/sched/task_stack> out of <linux/sched.h>
2017-02-07 8:07 ` Geert Uytterhoeven
@ 2017-02-07 8:13 ` Ingo Molnar
2017-02-07 8:27 ` Geert Uytterhoeven
0 siblings, 1 reply; 119+ messages in thread
From: Ingo Molnar @ 2017-02-07 8:13 UTC (permalink / raw)
To: Geert Uytterhoeven
Cc: Linus Torvalds, Linux Kernel Mailing List, Andrew Morton,
Mike Galbraith, Oleg Nesterov, Peter Zijlstra, Thomas Gleixner
* Geert Uytterhoeven <geert@linux-m68k.org> wrote:
> Hi Ingo,
>
> On Mon, Feb 6, 2017 at 10:54 PM, Ingo Molnar <mingo@kernel.org> wrote:
> > Wondering why Git allowed me to be so stupid with those leftover merge markers.
> > Git usually doesn't even allow me to commit them so I have these tuned out as a
> > possibility. This was just a regular git rebase -i flow, to back-merge fixes and
> > reorder/squash patches - nothing fancy that I remember - only the occasional
> > --onto option. I'm using Git 2.7.4.
>
> Git complains about the merge conflicts, and refuses to commit the result
> as long as you haven't resolved them, but it will happily commit everything
> you add using "git add -u", incl. merge markers.
Hm, it should really force that via 'git add -f' or such. The merge markers are
_very_ infrequent as naturally occuring source code lines even on a per line basis
- and especially the combination of them should be exceedingly unique.
I frequently use:
git add $(git ls-files -m)
... to stage edits without comitting them, probably that workflow is what caused
this bug.
Thanks,
Ingo
^ permalink raw reply [flat|nested] 119+ messages in thread
* Re: [PATCH 57/89] sched/headers: Split <linux/sched/task_stack> out of <linux/sched.h>
2017-02-07 8:13 ` Ingo Molnar
@ 2017-02-07 8:27 ` Geert Uytterhoeven
2017-02-07 9:45 ` Ingo Molnar
0 siblings, 1 reply; 119+ messages in thread
From: Geert Uytterhoeven @ 2017-02-07 8:27 UTC (permalink / raw)
To: Ingo Molnar
Cc: Linus Torvalds, Linux Kernel Mailing List, Andrew Morton,
Mike Galbraith, Oleg Nesterov, Peter Zijlstra, Thomas Gleixner
Hi Ingo,
On Tue, Feb 7, 2017 at 9:13 AM, Ingo Molnar <mingo@kernel.org> wrote:
> * Geert Uytterhoeven <geert@linux-m68k.org> wrote:
>> On Mon, Feb 6, 2017 at 10:54 PM, Ingo Molnar <mingo@kernel.org> wrote:
>> > Wondering why Git allowed me to be so stupid with those leftover merge markers.
>> > Git usually doesn't even allow me to commit them so I have these tuned out as a
>> > possibility. This was just a regular git rebase -i flow, to back-merge fixes and
>> > reorder/squash patches - nothing fancy that I remember - only the occasional
>> > --onto option. I'm using Git 2.7.4.
>>
>> Git complains about the merge conflicts, and refuses to commit the result
>> as long as you haven't resolved them, but it will happily commit everything
>> you add using "git add -u", incl. merge markers.
>
> Hm, it should really force that via 'git add -f' or such. The merge markers are
> _very_ infrequent as naturally occuring source code lines even on a per line basis
> - and especially the combination of them should be exceedingly unique.
They were very infrequent, until we switched to RST for documentation,
causing false positives when searching for "^[<=>].*" in vim...
> I frequently use:
>
> git add $(git ls-files -m)
That's identical to "git add -u", right?
> ... to stage edits without comitting them, probably that workflow is what caused
> this bug.
Gr{oetje,eeting}s,
Geert
--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-m68k.org
In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
-- Linus Torvalds
^ permalink raw reply [flat|nested] 119+ messages in thread
* Re: [PATCH 57/89] sched/headers: Split <linux/sched/task_stack> out of <linux/sched.h>
2017-02-07 8:27 ` Geert Uytterhoeven
@ 2017-02-07 9:45 ` Ingo Molnar
2017-02-07 9:54 ` Geert Uytterhoeven
0 siblings, 1 reply; 119+ messages in thread
From: Ingo Molnar @ 2017-02-07 9:45 UTC (permalink / raw)
To: Geert Uytterhoeven
Cc: Linus Torvalds, Linux Kernel Mailing List, Andrew Morton,
Mike Galbraith, Oleg Nesterov, Peter Zijlstra, Thomas Gleixner
* Geert Uytterhoeven <geert@linux-m68k.org> wrote:
> Hi Ingo,
>
> On Tue, Feb 7, 2017 at 9:13 AM, Ingo Molnar <mingo@kernel.org> wrote:
> > * Geert Uytterhoeven <geert@linux-m68k.org> wrote:
> >> On Mon, Feb 6, 2017 at 10:54 PM, Ingo Molnar <mingo@kernel.org> wrote:
> >> > Wondering why Git allowed me to be so stupid with those leftover merge markers.
> >> > Git usually doesn't even allow me to commit them so I have these tuned out as a
> >> > possibility. This was just a regular git rebase -i flow, to back-merge fixes and
> >> > reorder/squash patches - nothing fancy that I remember - only the occasional
> >> > --onto option. I'm using Git 2.7.4.
> >>
> >> Git complains about the merge conflicts, and refuses to commit the result
> >> as long as you haven't resolved them, but it will happily commit everything
> >> you add using "git add -u", incl. merge markers.
> >
> > Hm, it should really force that via 'git add -f' or such. The merge markers are
> > _very_ infrequent as naturally occuring source code lines even on a per line basis
> > - and especially the combination of them should be exceedingly unique.
>
> They were very infrequent, until we switched to RST for documentation,
> causing false positives when searching for "^[<=>].*" in vim...
But the exact merge conflict pattern is generated by Git, and it's far more
specific than the "^[<=>].*" pattern, right?
So it should be possible to disambiguate?
> > I frequently use:
> >
> > git add $(git ls-files -m)
>
> That's identical to "git add -u", right?
Indeed, I'm bad at remembering one letter shortcuts: why is what is '-m' in
git-ls-files called '-u' in git-add? ;-)
BTW., would 'git add -u' have prevented my mistake?
Thanks,
Ingo
^ permalink raw reply [flat|nested] 119+ messages in thread
* Re: [PATCH 57/89] sched/headers: Split <linux/sched/task_stack> out of <linux/sched.h>
2017-02-07 9:45 ` Ingo Molnar
@ 2017-02-07 9:54 ` Geert Uytterhoeven
0 siblings, 0 replies; 119+ messages in thread
From: Geert Uytterhoeven @ 2017-02-07 9:54 UTC (permalink / raw)
To: Ingo Molnar
Cc: Linus Torvalds, Linux Kernel Mailing List, Andrew Morton,
Mike Galbraith, Oleg Nesterov, Peter Zijlstra, Thomas Gleixner
Hi Ingo,
On Tue, Feb 7, 2017 at 10:45 AM, Ingo Molnar <mingo@kernel.org> wrote:
> * Geert Uytterhoeven <geert@linux-m68k.org> wrote:
>> On Tue, Feb 7, 2017 at 9:13 AM, Ingo Molnar <mingo@kernel.org> wrote:
>> > * Geert Uytterhoeven <geert@linux-m68k.org> wrote:
>> >> On Mon, Feb 6, 2017 at 10:54 PM, Ingo Molnar <mingo@kernel.org> wrote:
>> >> > Wondering why Git allowed me to be so stupid with those leftover merge markers.
>> >> > Git usually doesn't even allow me to commit them so I have these tuned out as a
>> >> > possibility. This was just a regular git rebase -i flow, to back-merge fixes and
>> >> > reorder/squash patches - nothing fancy that I remember - only the occasional
>> >> > --onto option. I'm using Git 2.7.4.
>> >>
>> >> Git complains about the merge conflicts, and refuses to commit the result
>> >> as long as you haven't resolved them, but it will happily commit everything
>> >> you add using "git add -u", incl. merge markers.
>> >
>> > Hm, it should really force that via 'git add -f' or such. The merge markers are
>> > _very_ infrequent as naturally occuring source code lines even on a per line basis
>> > - and especially the combination of them should be exceedingly unique.
>>
>> They were very infrequent, until we switched to RST for documentation,
>> causing false positives when searching for "^[<=>].*" in vim...
>
> But the exact merge conflict pattern is generated by Git, and it's far more
> specific than the "^[<=>].*" pattern, right?
Sure, but my fingers have memorized the above pattern ;-)
> So it should be possible to disambiguate?
Except for the cases where there are exactly 7 consecutive equals signs
at the beginning of a line in the RST sources.
>> > I frequently use:
>> >
>> > git add $(git ls-files -m)
>>
>> That's identical to "git add -u", right?
>
> Indeed, I'm bad at remembering one letter shortcuts: why is what is '-m' in
> git-ls-files called '-u' in git-add? ;-)
>
> BTW., would 'git add -u' have prevented my mistake?
No, AFAIK.
Gr{oetje,eeting}s,
Geert
--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-m68k.org
In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
-- Linus Torvalds
^ permalink raw reply [flat|nested] 119+ messages in thread
end of thread, other threads:[~2017-02-07 9:54 UTC | newest]
Thread overview: 119+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2017-02-06 13:28 [PATCH 00/89] Major reorganization of <linux/sched.h> Ingo Molnar
2017-02-06 13:28 ` [PATCH 01/89] sched/core: Clean up comments Ingo Molnar
2017-02-06 13:28 ` [PATCH 02/89] delayacct: Include <uapi/linux/taskstats.h> Ingo Molnar
2017-02-06 13:28 ` [PATCH 03/89] sched/rq_clock: Consolidate the ordering of the rq_clock methods Ingo Molnar
2017-02-06 13:28 ` [PATCH 04/89] sched/core: Remove unnecessary #include headers Ingo Molnar
2017-02-06 13:28 ` [PATCH 05/89] sched/topology: Split out scheduler topology code from core.c into topology.c Ingo Molnar
2017-02-06 13:28 ` [PATCH 06/89] sched/topology: Split out scheduler topology interfaces from <linux/sched.h> into <linux/sched/topology.h> Ingo Molnar
2017-02-06 13:28 ` [PATCH 07/89] sched/idle: Create <linux/sched/idle.h> for idle CPU related definitions Ingo Molnar
2017-02-06 13:28 ` [PATCH 08/89] sched/idle: Move wake_up_if_idle prototype to <linux/sched/idle.h> Ingo Molnar
2017-02-06 13:28 ` [PATCH 09/89] sched/wake_q: Move the wake-queue types and interfaces from sched.h into <linux/sched/wake_q.h> Ingo Molnar
2017-02-06 13:28 ` [PATCH 10/89] sched/clock: Introduce <linux/sched/clock.h> Ingo Molnar
2017-02-06 13:28 ` [PATCH 11/89] sched/headers, delayacct: Move the 'struct task_delay_info' definition from <linux/sched.h> to <linux/delayacct.h> Ingo Molnar
2017-02-06 18:16 ` Linus Torvalds
2017-02-06 21:16 ` [PATCH v2 " Ingo Molnar
2017-02-06 13:28 ` [PATCH 12/89] sched/abi: Introduce <uapi/linux/sched/types.h> Ingo Molnar
2017-02-06 13:28 ` [PATCH 13/89] sched/loadavg: Move loadavg related definitions from <linux/sched.h> to <linux/sched/loadavg.h> Ingo Molnar
2017-02-06 13:28 ` [PATCH 14/89] sched/autogroup: Collect extern APIs into <linux/sched/autogroup.h> Ingo Molnar
2017-02-06 13:28 ` [PATCH 15/89] sched/autogroup: Rename auto_group.[ch] to autogroup.[ch] Ingo Molnar
2017-02-06 13:28 ` [PATCH 16/89] sched/idle: Move polling methods to <linux/sched/idle.h> Ingo Molnar
2017-02-06 13:28 ` [PATCH 17/89] sched/idle: Remove tsk_is_polling() Ingo Molnar
2017-02-06 13:28 ` [PATCH 18/89] sched/core: Move task->mm handling methods to <linux/sched/mm.h> Ingo Molnar
2017-02-06 14:28 ` Christoph Hellwig
2017-02-06 22:43 ` Ingo Molnar
2017-02-07 7:30 ` Ingo Molnar
2017-02-06 13:28 ` [PATCH 19/89] sched/core: Move task->mm coredumping related defines and methods from <linux/sched.h> to <linux/sched/coredump.h> Ingo Molnar
2017-02-06 13:28 ` [PATCH 20/89] sched/headers, signals: Separate out task_struct::signal and task_struct::sighand types and accessors into <linux/sched/signal.h> Ingo Molnar
2017-02-06 21:11 ` Linus Torvalds
2017-02-06 21:35 ` Ingo Molnar
2017-02-06 21:57 ` Linus Torvalds
2017-02-06 22:38 ` Ingo Molnar
2017-02-06 13:28 ` [PATCH 21/89] sched/headers: Remove unused 'task_can_switch_user()' prototype Ingo Molnar
2017-02-06 13:28 ` [PATCH 22/89] sched/headers: Move 'struct user_struct' definition and APIs to the new <linux/sched/user.h> header Ingo Molnar
2017-02-06 13:28 ` [PATCH 23/89] sched/headers, softlockup: Move softlockup detector watchdog methods to <linux/nmi.h> Ingo Molnar
2017-02-06 13:28 ` [PATCH 24/89] sched/headers: Remove #include <linux/capability.h> from <linux/sched.h> Ingo Molnar
2017-02-06 13:28 ` [PATCH 25/89] sched/headers, cgroups: Remove the threadgroup_change_*() wrappery Ingo Molnar
2017-02-06 13:28 ` [PATCH 26/89] sched/headers: Remove unused <linux/cgroup-defs.h> include from <linux/sched.h> Ingo Molnar
2017-02-06 13:28 ` [PATCH 27/89] sched/headers: Move 'struct pacct_struct' and 'struct cpu_itimer' form <linux/sched.h> to <linux/sched/signal.h> Ingo Molnar
2017-02-06 13:28 ` [PATCH 28/89] sched/cpufreq: Move the cpufreq interface to <linux/sched/cpufreq.h> Ingo Molnar
2017-02-06 13:28 ` [PATCH 29/89] sched/headers: Move more mm_struct related functionality from <linux/sched.h> to <linux/sched/mm.h> Ingo Molnar
2017-02-06 13:28 ` [PATCH 30/89] sched/headers: Move the 'init_mm' declaration from <linux/sched.h> to <linux/mm_types.h> Ingo Molnar
2017-02-06 13:28 ` [PATCH 31/89] sched/headers: Move in_vfork() from <linux/sched.h> to <linux/sched/mm.h> Ingo Molnar
2017-02-06 13:28 ` [PATCH 32/89] sched/numa: Split <linux/sched/numa_balancing.h> out of <linux/sched.h> Ingo Molnar
2017-02-06 13:28 ` [PATCH 33/89] sched/headers: Move the JOBCTL_ defines and methods from <linux/sched.h> to <linux/sched/jobctl.h> Ingo Molnar
2017-02-06 13:28 ` [PATCH 34/89] sched/core: Move <asm/paravirt.h> include to kernel/sched/sched.h Ingo Molnar
2017-02-06 13:28 ` [PATCH 35/89] kasan, sched/headers: Remove <linux/sched.h> from <linux/kasan.h> and uninline kasan_enable/disable_current() Ingo Molnar
2017-02-06 13:28 ` [PATCH 36/89] sched/headers: Remove <linux/cred.h> inclusion from <linux/sched.h> Ingo Molnar
2017-02-06 13:28 ` [PATCH 37/89] sched/headers: Remove <asm/ptrace.h> " Ingo Molnar
2017-02-06 13:28 ` [PATCH 38/89] sched/headers: Remove <linux/rtmutex.h> " Ingo Molnar
2017-02-06 13:28 ` [PATCH 39/89] sched/headers: Remove various unrelated headers " Ingo Molnar
2017-02-06 13:28 ` [PATCH 40/89] sched/headers: Move CONFIG_TASK_XACCT bits out of <linux/sched.h> into <linux/sched/xacct.h> Ingo Molnar
2017-02-06 13:28 ` [PATCH 41/89] sched/headers: Move signal wakeup & sigpending methods from <linux/sched.h> into <linux/sched/signal.h> Ingo Molnar
2017-02-06 13:28 ` [PATCH 42/89] sched/headers: Move the memalloc_noio_*() APIs to <linux/sched/mm.h> Ingo Molnar
2017-02-06 13:28 ` [PATCH 43/89] sched/headers: Remove <linux/gfp.h> include from <linux/sched.h> Ingo Molnar
2017-02-06 13:28 ` [PATCH 44/89] sched/headers: Move task statistics from <linux/sched.h> to <linux/sched/stat.h> Ingo Molnar
2017-02-06 13:28 ` [PATCH 45/89] mm/vmacache, sched/headers: Introduce 'struct vmacache' and move it from <linux/sched.h> to <linux/mm_types> Ingo Molnar
2017-02-06 13:28 ` [PATCH 46/89] sched/headers: Move the NOHZ APIs from <linux/sched.h> to <linux/sched/nohz.h> Ingo Molnar
2017-02-06 13:28 ` [PATCH 47/89] sched/headers: Move debugging functions from <linux/sched.h> to <linux/sched/debug.h> Ingo Molnar
2017-02-06 13:28 ` [PATCH 48/89] sched/headers, time/timekeeping: Move the xtime_update() prototype from <linux/sched.h> to <linux/time.h> Ingo Molnar
2017-02-06 13:28 ` [PATCH 49/89] sched/headers: Move <asm/current.h> include from the middle of <linux/sched.h> to the header portion Ingo Molnar
2017-02-06 13:28 ` [PATCH 50/89] sched/core: Convert ___assert_task_state() link time assert to BUILD_BUG_ON() Ingo Molnar
2017-02-06 13:28 ` [PATCH 51/89] sched/headers: Split hotplug CPU interfaces out of <linux/sched.h> into <linux/sched/hotplug.h> Ingo Molnar
2017-02-06 13:28 ` [PATCH 52/89] sched/headers: Split <linux/sched/task.h> out of <linux/sched.h> Ingo Molnar
2017-02-06 21:16 ` Linus Torvalds
2017-02-06 21:41 ` Ingo Molnar
2017-02-06 21:45 ` Ingo Molnar
2017-02-06 13:28 ` [PATCH 53/89] sched/headers: Simplify <linux/sched/task.h> dependencies Ingo Molnar
2017-02-06 13:28 ` [PATCH 54/89] sched/headers: Make the include/linux/sched/*.h headers build standalone Ingo Molnar
2017-02-06 13:28 ` [PATCH 55/89] sched/core: Clean up <linux/sched.h> structure predeclarations and remove stale entries Ingo Molnar
2017-02-06 13:28 ` [PATCH 56/89] sched/headers: Move the PREEMPT_COUNT defines from <linux/sched.h> to <linux/preempt.h> Ingo Molnar
2017-02-06 13:29 ` [PATCH 57/89] sched/headers: Split <linux/sched/task_stack> out of <linux/sched.h> Ingo Molnar
2017-02-06 21:21 ` Linus Torvalds
2017-02-06 21:54 ` Ingo Molnar
2017-02-07 8:07 ` Geert Uytterhoeven
2017-02-07 8:13 ` Ingo Molnar
2017-02-07 8:27 ` Geert Uytterhoeven
2017-02-07 9:45 ` Ingo Molnar
2017-02-07 9:54 ` Geert Uytterhoeven
2017-02-06 13:29 ` [PATCH 58/89] sched/headers: Move the 'root_task_group' declaration to <linux/sched/autogroup.h> Ingo Molnar
2017-02-06 14:52 ` Peter Zijlstra
2017-02-06 13:29 ` [PATCH 59/89] sched/core: Move the get_preempt_disable_ip() inline to sched/core.c Ingo Molnar
2017-02-06 13:29 ` [PATCH 60/89] signals: Split out <linux/signal_types.h> from <linux/signal.h> Ingo Molnar
2017-02-06 13:29 ` [PATCH 61/89] sched/headers: Reduce <linux/sched.h> signal API dependency Ingo Molnar
2017-02-06 13:29 ` [PATCH 62/89] mm/headers, sched/headers: Split <linux/mm_types_task.h> out of <linux/mm_types.h> Ingo Molnar
2017-02-06 13:29 ` [PATCH 63/89] sched/headers: Remove the <linux/mm_types.h> dependency from <linux/sched.h> Ingo Molnar
2017-02-06 13:29 ` [PATCH 64/89] sched/headers: Remove 'init_pid_ns' prototype " Ingo Molnar
2017-02-06 13:29 ` [PATCH 65/89] sched/headers: Move 'init_task' and 'init_thread_union' from <linux/sched.h> to <linux/sched/task.h> Ingo Molnar
2017-02-06 13:29 ` [PATCH 66/89] sched/headers: Use <linux/rcuupdate.h> instead of <linux/rculist.h> in <linux/sched.h> Ingo Molnar
2017-02-06 13:29 ` [PATCH 67/89] sched/headers: Move the task_lock()/unlock() APIs to <linux/sched/task.h> Ingo Molnar
2017-02-06 13:29 ` [PATCH 68/89] sched/headers: Split cputime functionality out of <linux/sched.h>, into <linux/sched/cputime.h> Ingo Molnar
2017-02-06 13:29 ` [PATCH 69/89] sched/headers: Move sched_info_on() and force_schedstat_enabled() from <linux/sched.h> to <linux/sched/stat.h> Ingo Molnar
2017-02-06 13:29 ` [PATCH 70/89] sched/core: Remove unused prefetch_stack() Ingo Molnar
2017-02-06 13:29 ` [PATCH 71/89] sched/headers, vfs/execve: Move the do_execve*() prototypes from <linux/sched.h> to <linux/binfmts.h> Ingo Molnar
2017-02-06 13:29 ` [PATCH 72/89] sched/headers: Move kstack_end() from <linux/sched.h> to <linux/sched/task_stack.h> Ingo Molnar
2017-02-06 13:29 ` [PATCH 73/89] sched/headers: Move exit_files() and exit_itimers() from <linux/sched.h> to <linux/sched/task.h> Ingo Molnar
2017-02-06 13:29 ` [PATCH 74/89] sched/headers: Move _init() prototypes from <linux/sched.h> to <linux/sched/init.h> Ingo Molnar
2017-02-06 13:29 ` [PATCH 75/89] sched/headers, timekeeping: Consolidate the timer tick function prototypes Ingo Molnar
2017-02-06 13:29 ` [PATCH 76/89] sched/headers, mm: Move 'struct tlbflush_unmap_batch' from <linux/sched.h> to <linux/mm_types_task.h> Ingo Molnar
2017-02-06 13:29 ` [PATCH 77/89] sched/headers: Move the get_task_struct()/put_task_struct() and related APIs from <linux/sched.h> to <linux/sched/task.h> Ingo Molnar
2017-02-06 13:29 ` [PATCH 78/89] sched/core: Remove the tsk_cpus_allowed() wrapper Ingo Molnar
2017-02-06 14:53 ` Peter Zijlstra
2017-02-06 14:59 ` Peter Zijlstra
2017-02-06 22:03 ` Ingo Molnar
2017-02-07 8:06 ` Peter Zijlstra
2017-02-06 13:29 ` [PATCH 79/89] sched/core: Remove the tsk_nr_cpus_allowed() wrapper Ingo Molnar
2017-02-06 13:29 ` [PATCH 80/89] sched/headers: Move the <linux/magic.h> include to <linux/sched/task_stack.h> Ingo Molnar
2017-02-06 13:29 ` [PATCH 81/89] sched/headers: Remove spurious <linux/sched.h> inclusion dependencies Ingo Molnar
2017-02-06 13:29 ` [PATCH 82/89] rcu: Separate the rcu synchronization types and APIs into <linux/rcupdate_wait.h> Ingo Molnar
2017-02-06 13:29 ` [PATCH 83/89] timers: Remove the <linux/sysctl.h> include from <linux/timer.h> Ingo Molnar
2017-02-06 13:29 ` [PATCH 84/89] x86/apic: Remove the <linux/pm.h> header inclusion from <asm/apic.h> Ingo Molnar
2017-02-06 13:33 ` [PATCH 85/89] hrtimer: Remove the <linux/wait.h> include from <linux/hrtimer.h> Ingo Molnar
2017-02-06 13:34 ` [PATCH 86/89] sched/headers: Remove the <linux/topology.h> include from <linux/sched.h> Ingo Molnar
2017-02-06 13:34 ` [PATCH 87/89] sched/headers: Move the sched_exec() prototype to <linux/sched/task.h> Ingo Molnar
2017-02-06 13:35 ` [PATCH 88/89] sched/headers: Remove #ifdefs from <linux/sched.h> Ingo Molnar
2017-02-06 21:26 ` Linus Torvalds
2017-02-06 13:36 ` [PATCH 89/89] sched/headers: Clean up <linux/sched.h> Ingo Molnar
2017-02-06 13:39 ` [PATCH 00/89] Major reorganization of <linux/sched.h> Ingo Molnar
2017-02-06 21:31 ` Linus Torvalds
2017-02-06 22:13 ` Ingo Molnar
2017-02-07 8:08 ` Peter Zijlstra
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