Re: [GIT PULL rcu/next] RCU commits for 4.17

[Ingo Molnar <mingo@kernel.org>]

* Paul E. McKenney <paulmck@linux.vnet.ibm.com> wrote:

> Hello, Ingo!
> 
> This pull request contains the following changes:
> 
> 1.	Miscellaneous fixes, perhaps most notably removing obsolete
> 	code whose only purpose in life was to gather information for
> 	the now-removed RCU debugfs facility.  Other notable changes
> 	include removing NO_HZ_FULL_ALL in favor of the nohz_full kernel
> 	boot parameter, minor optimizations for expedited grace periods,
> 	some added tracing, creating an RCU-specific workqueue using Tejun's
> 	new WQ_MEM_RECLAIM flag, and several cleanups to code and comments.
> 
> 	http://lkml.kernel.org/r/20180226215219.GA27379@linux.vnet.ibm.com
> 
> 2.	SRCU cleanups and optimizations.
> 
> 	http://lkml.kernel.org/r/20180226215614.GA31616@linux.vnet.ibm.com
> 
> 3.	Torture-test updates, perhaps most notably the adding of ARMv8
> 	support, but also including numerous cleanups and usability fixes.
> 
> 	http://lkml.kernel.org/r/20180307172627.GA15805@linux.vnet.ibm.com
> 
> All of these changes have been subjected to 0day Test Robot and -next
> testing, and are available in the git repository at:
> 
>   git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu.git for-mingo
> 
> for you to fetch changes up to 338c46403f169dd76bff8ed58fd0be0d600e7aba:
> 
>   Merge branches 'fixes.2018.02.23a', 'srcu.2018.02.20a' and 'torture.2018.02.20a' into HEAD (2018-02-23 15:15:41 -0800)
> 
> ----------------------------------------------------------------
> Byungchul Park (1):
>       srcu: Remove dead code in srcu_gp_end()
> 
> Ildar Ismagilov (3):
>       rcu: Fix misprint in srcu_funnel_exp_start
>       srcu: Prevent sdp->srcu_gp_seq_needed_exp counter wrap
>       srcu: Reduce scans of srcu_data in counter wrap check
> 
> Lihao Liang (4):
>       rcu: Remove unnecessary spinlock in rcu_boot_init_percpu_data()
>       doc: Fix typo in rcutorture documentation
>       doc: Fix typo in rcu_head comments
>       rcutorture: Add basic ARM64 support to run scripts
> 
> Liu, Changcheng (1):
>       rcu: Remove redundant nxttail index macro define
> 
> Matthew Wilcox (1):
>       rcu: Use wrapper for lockdep asserts
> 
> Paul E. McKenney (27):
>       sched/isolation: Eliminate NO_HZ_FULL_ALL
>       rcu: Fix CPU offload boot message when no CPUs are offloaded
>       rcu: Remove obsolete boost statistics for debugfs
>       rcu: Remove obsolete callback-invocation statistics for debugfs
>       rcu: Remove obsolete __rcu_pending() statistics for debugfs
>       rcu: Remove obsolete force-quiescent-state statistics for debugfs
>       rcu: More clearly identify grace-period kthread stack dump
>       rcu: Consolidate rcu.h #ifdefs
>       rcu: Fix init_rcu_head() comment.
>       rcu: Add more tracing of expedited grace periods
>       rcu: Trace expedited GP delays due to transitioning CPUs
>       rcu: Make expedited RCU CPU selection avoid unnecessary stores
>       srcu: Abstract function name
>       rcu: Remove SRCU throttling
>       rcutorture: Replace multi-instance kzalloc() with kcalloc()
>       rcutorture: Abstract function and module names
>       rcutorture: Avoid fake-writer use of undefined primitives
>       rcutorture: Re-enable testing of dynamic expediting
>       rcutorture: Record which grace-period primitives are tested
>       rcutorture: Update kvm.sh header comment
>       torture: Specify qemu memory size with --memory argument
>       torture: Default jitter off when running rcuperf
>       torture: Adjust rcuperf trace processing to allow for workqueues
>       torture: Grace periods do not piggyback off of themselves
>       torture: Provide more sensible nreader/nwriter defaults for rcuperf
>       rcu: Create RCU-specific workqueues with rescuers
>       Merge branches 'fixes.2018.02.23a', 'srcu.2018.02.20a' and 'torture.2018.02.20a' into HEAD
> 
> Tejun Heo (1):
>       rcu: Call touch_nmi_watchdog() while printing stall warnings
> 
>  Documentation/timers/NO_HZ.txt                     |  7 ---
>  include/linux/rcupdate.h                           | 10 +--
>  include/linux/types.h                              |  2 +-
>  include/trace/events/rcu.h                         |  4 ++
>  kernel/rcu/rcu.h                                   | 38 ++++++++----
>  kernel/rcu/rcuperf.c                               | 21 ++++++-
>  kernel/rcu/rcutorture.c                            | 72 ++++++++++++----------
>  kernel/rcu/srcutree.c                              | 29 +++++----
>  kernel/rcu/tree.c                                  | 72 ++++++++--------------
>  kernel/rcu/tree.h                                  | 36 +----------
>  kernel/rcu/tree_exp.h                              | 36 ++++++++---
>  kernel/rcu/tree_plugin.h                           | 34 ++++++----
>  kernel/time/Kconfig                                | 10 ---
>  kernel/time/tick-sched.c                           | 22 +------
>  .../testing/selftests/rcutorture/bin/functions.sh  | 17 ++++-
>  .../rcutorture/bin/kvm-recheck-rcuperf-ftrace.sh   | 11 ++--
>  .../selftests/rcutorture/bin/kvm-test-1-run.sh     |  4 +-
>  tools/testing/selftests/rcutorture/bin/kvm.sh      | 22 +++++--
>  .../selftests/rcutorture/configs/rcu/TASKS03       |  1 -
>  .../selftests/rcutorture/configs/rcu/TASKS03.boot  |  2 +-
>  .../selftests/rcutorture/configs/rcu/TREE04        |  1 -
>  .../selftests/rcutorture/configs/rcu/TREE04.boot   |  2 +-
>  .../selftests/rcutorture/configs/rcu/TREE07        |  1 -
>  .../rcutorture/configs/rcuperf/ver_functions.sh    | 24 +-------
>  .../selftests/rcutorture/doc/rcu-test-image.txt    |  2 +-
>  25 files changed, 238 insertions(+), 242 deletions(-)

Pulled, thanks a lot Paul!

	Ingo