From: "Paul E. McKenney" <paulmck@linux.vnet.ibm.com>
To: Sasha Levin <levinsasha928@gmail.com>
Cc: "linux-kernel@vger.kernel.org List"
<linux-kernel@vger.kernel.org>, "Ingo Molnar" <mingo@kernel.org>,
jiangshanlai@gmail.com, dipankar@in.ibm.com,
"Andrew Morton" <akpm@linux-foundation.org>,
"Mathieu Desnoyers" <mathieu.desnoyers@efficios.com>,
"Josh Triplett" <josh@joshtriplett.org>,
"Thomas Gleixner" <tglx@linutronix.de>,
"Peter Zijlstra" <peterz@infradead.org>,
"Steven Rostedt" <rostedt@goodmis.org>,
dhowells@redhat.com, "Eric Dumazet" <edumazet@google.com>,
"Frédéric Weisbecker" <fweisbec@gmail.com>,
"Oleg Nesterov" <oleg@redhat.com>,
bobby.prani@gmail.com, alexander.levin@verizon.com
Subject: Re: [PATCH v3 tip/core/rcu 40/40] rcu: Make non-preemptive schedule be Tasks RCU quiescent state
Date: Thu, 28 Sep 2017 05:30:55 -0700 [thread overview]
Message-ID: <20170928123055.GI3521@linux.vnet.ibm.com> (raw)
In-Reply-To: <CA+1xoqdDCuQ5pz61aHn3Y-VdP5g2GvYfXmTdpHsWJG0dsM3DKg@mail.gmail.com>
On Thu, Sep 28, 2017 at 02:37:20AM -0700, Sasha Levin wrote:
> On Wed, Apr 19, 2017 at 9:58 AM, Paul E. McKenney
> <paulmck@linux.vnet.ibm.com> wrote:
> > Currently, a call to schedule() acts as a Tasks RCU quiescent state
> > only if a context switch actually takes place. However, just the
> > call to schedule() guarantees that the calling task has moved off of
> > whatever tracing trampoline that it might have been one previously.
> > This commit therefore plumbs schedule()'s "preempt" parameter into
> > rcu_note_context_switch(), which then records the Tasks RCU quiescent
> > state, but only if this call to schedule() was -not- due to a preemption.
> >
> > To avoid adding overhead to the common-case context-switch path,
> > this commit hides the rcu_note_context_switch() check under an existing
> > non-common-case check.
> >
> > Suggested-by: Steven Rostedt <rostedt@goodmis.org>
> > Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
>
> Hey Paul,
>
> I'm seeing the following on the latest -next kernel, and suspect it's
> caused bit this patch:
Hmmm... kernel/rcu/tree_plugin.h:329 thinks that someone slept (as opposed
to was preempted) in an RCU read-side critical section.
If this is reproducible, could you please enable lockdep if you are not
already doing so?
Thanx, Paul
> ------------[ cut here ]------------
> WARNING: CPU: 0 PID: 6974 at kernel/rcu/tree_plugin.h:329
> rcu_preempt_note_context_switch kernel/rcu/tree_plugin.h:329 [inline]
> WARNING: CPU: 0 PID: 6974 at kernel/rcu/tree_plugin.h:329
> rcu_note_context_switch+0x16c/0x2210 kernel/rcu/tree.c:458
> Kernel panic - not syncing: panic_on_warn set ...
>
> CPU: 0 PID: 6974 Comm: syz-fuzzer Not tainted 4.13.0-next-20170908+ #246
> Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS
> 1.10.1-1ubuntu1 04/01/2014
> Call Trace:
> __dump_stack lib/dump_stack.c:16 [inline]
> dump_stack+0x11d/0x1e5 lib/dump_stack.c:52
> panic+0x1bc/0x3b7 kernel/panic.c:181
> __warn+0x1c4/0x1d9 kernel/panic.c:542
> report_bug+0x211/0x2d0 lib/bug.c:183
> fixup_bug+0x3f/0x90 arch/x86/kernel/traps.c:178
> do_trap_no_signal arch/x86/kernel/traps.c:212 [inline]
> do_trap+0x260/0x390 arch/x86/kernel/traps.c:261
> do_error_trap+0x133/0x380 arch/x86/kernel/traps.c:298
> do_invalid_op+0x1b/0x20 arch/x86/kernel/traps.c:311
> invalid_op+0x18/0x20 arch/x86/entry/entry_64.S:905
> RIP: 0010:rcu_preempt_note_context_switch kernel/rcu/tree_plugin.h:329 [inline]
> RIP: 0010:rcu_note_context_switch+0x16c/0x2210 kernel/rcu/tree.c:458
> RSP: 0018:ffff88003b2debc8 EFLAGS: 00010002
> RAX: 0000000000000001 RBX: 1ffff1000765bd85 RCX: 0000000000000000
> RDX: 1ffff100075d7882 RSI: ffffffffb5c7da20 RDI: ffff88003aebc410
> RBP: ffff88003b2def30 R08: dffffc0000000000 R09: 0000000000000001
> R10: 0000000000000000 R11: 0000000000000000 R12: ffff88003b2def08
> R13: 0000000000000000 R14: ffff88003aebc040 R15: ffff88003aebc040
> __schedule+0x201/0x2240 kernel/sched/core.c:3292
> schedule+0x113/0x460 kernel/sched/core.c:3421
> kvm_async_pf_task_wait+0x43f/0x940 arch/x86/kernel/kvm.c:158
> do_async_page_fault+0x72/0x90 arch/x86/kernel/kvm.c:271
> async_page_fault+0x22/0x30 arch/x86/entry/entry_64.S:1069
> RIP: 0010:format_decode+0x240/0x830 lib/vsprintf.c:1996
> RSP: 0018:ffff88003b2df520 EFLAGS: 00010283
> RAX: 000000000000003f RBX: ffffffffb5d1e141 RCX: ffff88003b2df670
> RDX: 0000000000000001 RSI: dffffc0000000000 RDI: ffffffffb5d1e140
> RBP: ffff88003b2df560 R08: dffffc0000000000 R09: 0000000000000000
> R10: ffff88003b2df718 R11: 0000000000000000 R12: ffff88003b2df5d8
> R13: 0000000000000064 R14: ffffffffb5d1e140 R15: 0000000000000000
> vsnprintf+0x173/0x1700 lib/vsprintf.c:2136
> sprintf+0xbe/0xf0 lib/vsprintf.c:2386
> proc_self_get_link+0xfb/0x1c0 fs/proc/self.c:23
> get_link fs/namei.c:1047 [inline]
> link_path_walk+0x1041/0x1490 fs/namei.c:2127
> path_openat+0x2d0/0x3600 fs/namei.c:3527
> do_filp_open+0x263/0x3c0 fs/namei.c:3562
> do_sys_open+0x515/0x6f0 fs/open.c:1059
> SYSC_openat fs/open.c:1086 [inline]
> SyS_openat+0x30/0x40 fs/open.c:1080
> do_syscall_64+0x26a/0x800 arch/x86/entry/common.c:287
> entry_SYSCALL64_slow_path+0x25/0x25
> RIP: 0033:0x4889da
> RSP: 002b:000000c4261eb8f0 EFLAGS: 00000206 ORIG_RAX: 0000000000000101
> RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00000000004889da
> RDX: 0000000000000002 RSI: 000000c42338d2c0 RDI: ffffffffffffff9c
> RBP: 000000c4261eb980 R08: 0000000000000000 R09: 0000000000000000
> R10: 0000000000000000 R11: 0000000000000206 R12: 0000000000000000
> R13: 00000000ffffffee R14: 00000000000012c0 R15: 0000000000000100
> Dumping ftrace buffer:
> (ftrace buffer empty)
> Kernel Offset: 0x30000000 from 0xffffffff81000000 (relocation range:
> 0xffffffff80000000-0xffffffffbfffffff)
> Rebooting in 86400 seconds..
>
next prev parent reply other threads:[~2017-09-28 12:31 UTC|newest]
Thread overview: 176+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-04-12 17:40 [PATCH tip/core/rcu 0/40] SRCU callback parallelization for 4.12 Paul E. McKenney
2017-04-12 17:39 ` [PATCH tip/core/rcu 01/40] rcu: Maintain special bits at bottom of ->dynticks counter Paul E. McKenney
2017-04-13 9:20 ` Peter Zijlstra
2017-04-13 16:15 ` Paul E. McKenney
2017-04-12 17:39 ` [PATCH tip/core/rcu 02/40] rcu: Make arch select smp_mb__after_unlock_lock() strength Paul E. McKenney
2017-04-13 9:21 ` Peter Zijlstra
2017-04-13 16:17 ` Paul E. McKenney
2017-04-13 9:24 ` Peter Zijlstra
2017-04-13 16:26 ` Paul E. McKenney
2017-04-13 16:37 ` Peter Zijlstra
2017-04-13 17:03 ` Paul E. McKenney
2017-04-19 13:38 ` Michael Ellerman
2017-04-19 15:09 ` Paul E. McKenney
2017-04-12 17:39 ` [PATCH tip/core/rcu 03/40] srcu: Consolidate batch checking into rcu_all_batches_empty() Paul E. McKenney
2017-04-12 17:39 ` [PATCH tip/core/rcu 04/40] srcu: Check for tardy grace-period activity in cleanup_srcu_struct() Paul E. McKenney
2017-04-12 17:39 ` [PATCH tip/core/rcu 05/40] rcu: Semicolon inside RCU_TRACE() for rcu.h Paul E. McKenney
2017-04-12 17:39 ` [PATCH tip/core/rcu 06/40] rcu: Semicolon inside RCU_TRACE() for Tiny RCU Paul E. McKenney
2017-04-12 17:39 ` [PATCH tip/core/rcu 07/40] rcu: Semicolon inside RCU_TRACE() for tree.c Paul E. McKenney
2017-04-12 17:39 ` [PATCH tip/core/rcu 08/40] rcu: Make call_rcu() do deferred NOCB wakeups Paul E. McKenney
2017-04-12 17:39 ` [PATCH tip/core/rcu 09/40] rcu: Make rcu_all_qs() " Paul E. McKenney
2017-04-12 17:39 ` [PATCH tip/core/rcu 10/40] rcu: Make rcu_note_context_switch() " Paul E. McKenney
2017-04-12 17:39 ` [PATCH tip/core/rcu 11/40] rcu: Pull rcu_sched_qs_mask into rcu_dynticks structure Paul E. McKenney
2017-04-12 17:39 ` [PATCH tip/core/rcu 12/40] rcu: Pull rcu_qs_ctr " Paul E. McKenney
2017-04-12 17:39 ` [PATCH tip/core/rcu 13/40] rcu: Eliminate flavor scan in rcu_momentary_dyntick_idle() Paul E. McKenney
2017-04-12 17:39 ` [PATCH tip/core/rcu 14/40] rcu: Place guard on rcu_all_qs() and rcu_note_context_switch() actions Paul E. McKenney
2017-04-12 17:40 ` [PATCH tip/core/rcu 15/40] rcu: Default RCU_FANOUT_LEAF to 16 unless explicitly changed Paul E. McKenney
2017-04-12 17:40 ` [PATCH tip/core/rcu 16/40] srcu: Abstract multi-tail callback list handling Paul E. McKenney
2017-04-12 17:40 ` [PATCH tip/core/rcu 17/40] srcu: Allow SRCU to access rcu_scheduler_active Paul E. McKenney
2017-04-12 17:40 ` [PATCH tip/core/rcu 18/40] srcu: Allow early boot use of synchronize_srcu() Paul E. McKenney
2017-04-12 17:40 ` [PATCH tip/core/rcu 19/40] rcu: Add single-element dequeue functions to rcu_segcblist Paul E. McKenney
2017-04-12 17:40 ` [PATCH tip/core/rcu 20/40] srcu: Move rcu_seq_start() and friends to rcu.h Paul E. McKenney
2017-04-12 17:40 ` [PATCH tip/core/rcu 21/40] rcu: Expedited wakeups need to be fully ordered Paul E. McKenney
2017-04-12 17:40 ` [PATCH tip/core/rcu 22/40] rcu: Fix warning in rcu_seq_end() Paul E. McKenney
2017-04-12 17:40 ` [PATCH tip/core/rcu 23/40] srcu: Push srcu_advance_batches() fastpath into common case Paul E. McKenney
2017-04-12 17:40 ` [PATCH tip/core/rcu 24/40] srcu: Move to state-based grace-period sequencing Paul E. McKenney
2017-04-12 17:40 ` [PATCH tip/core/rcu 25/40] srcu: Add grace-period sequence numbers Paul E. McKenney
2017-04-12 17:40 ` [PATCH tip/core/rcu 26/40] srcu: Use rcu_segcblist to track SRCU callbacks Paul E. McKenney
2017-04-12 17:40 ` [PATCH tip/core/rcu 27/40] srcu: Move combining-tree definitions for SRCU's benefit Paul E. McKenney
2017-04-12 17:40 ` [PATCH tip/core/rcu 28/40] srcu: Move rcu_init_levelspread() to rcu_tree_node.h Paul E. McKenney
2017-04-12 17:40 ` [PATCH tip/core/rcu 29/40] rcu: Remove redundant levelcnt[] array from rcu_init_one() Paul E. McKenney
2017-04-12 17:40 ` [PATCH tip/core/rcu 30/40] srcu: Move rcu_node traversal macros to rcu.h Paul E. McKenney
2017-04-12 17:40 ` [PATCH tip/core/rcu 31/40] srcu: Make num_rcu_lvl[] array be external Paul E. McKenney
2017-04-12 17:40 ` [PATCH tip/core/rcu 32/40] srcu: Fix bogus try_check_zero() comment Paul E. McKenney
2017-04-12 17:40 ` [PATCH tip/core/rcu 33/40] srcu: Improve rcu_seq grace-period-counter abstraction Paul E. McKenney
2017-04-12 17:40 ` [PATCH tip/core/rcu 34/40] srcu: Allow a second bit in rcu_seq for SRCU state Paul E. McKenney
2017-04-12 17:40 ` [PATCH tip/core/rcu 35/40] srcu: Merge ->srcu_state into ->srcu_gp_seq Paul E. McKenney
2017-04-12 17:40 ` [PATCH tip/core/rcu 36/40] srcu: Crude control of expedited grace periods Paul E. McKenney
2017-04-12 17:40 ` [PATCH tip/core/rcu 37/40] srcu: Create a tiny SRCU Paul E. McKenney
2017-04-13 9:48 ` Peter Zijlstra
2017-04-13 16:30 ` Paul E. McKenney
2017-04-12 17:40 ` [PATCH tip/core/rcu 38/40] srcutorture: Print Tiny SRCU reader statistics Paul E. McKenney
2017-04-12 17:40 ` [PATCH tip/core/rcu 39/40] srcu: Introduce CLASSIC_SRCU Kconfig option Paul E. McKenney
2017-04-12 17:40 ` [PATCH tip/core/rcu 40/40] srcu: Parallelize callback handling Paul E. McKenney
2017-04-13 9:50 ` Peter Zijlstra
2017-04-13 16:37 ` Paul E. McKenney
2017-04-13 17:42 ` Paul E. McKenney
2017-04-13 9:54 ` Peter Zijlstra
2017-04-13 16:50 ` Paul E. McKenney
2017-04-20 3:40 ` powerpc KVM build break in linux-next (was Re: [PATCH tip/core/rcu 40/40] srcu: Parallelize callback handling) Michael Ellerman
2017-04-20 14:19 ` Paul E. McKenney
2017-04-20 15:28 ` Paolo Bonzini
2017-04-21 0:38 ` Paul E. McKenney
2017-04-21 1:42 ` Michael Ellerman
2017-04-21 4:17 ` Paul E. McKenney
2017-04-21 7:27 ` Paolo Bonzini
2017-04-21 12:51 ` Paul E. McKenney
2017-04-22 6:09 ` Michael Ellerman
2017-04-21 2:13 ` Michael Ellerman
2017-04-17 23:44 ` [PATCH v2 tip/core/rcu 0/40] SRCU callback parallelization for 4.12 Paul E. McKenney
2017-04-17 23:44 ` [PATCH v2 tip/core/rcu 01/39] rcu: Maintain special bits at bottom of ->dynticks counter Paul E. McKenney
2017-04-18 0:07 ` Josh Triplett
2017-04-18 18:19 ` Paul E. McKenney
2017-04-17 23:44 ` [PATCH v2 tip/core/rcu 02/39] rcu: Make arch select smp_mb__after_unlock_lock() strength Paul E. McKenney
2017-04-18 0:19 ` Josh Triplett
2017-04-17 23:44 ` [PATCH v2 tip/core/rcu 03/39] srcu: Consolidate batch checking into rcu_all_batches_empty() Paul E. McKenney
2017-04-18 0:30 ` Josh Triplett
2017-04-17 23:44 ` [PATCH v2 tip/core/rcu 04/39] srcu: Check for tardy grace-period activity in cleanup_srcu_struct() Paul E. McKenney
2017-04-18 0:33 ` Josh Triplett
2017-04-18 0:34 ` Josh Triplett
2017-04-18 18:34 ` Paul E. McKenney
2017-04-18 19:44 ` Josh Triplett
2017-04-17 23:44 ` [PATCH v2 tip/core/rcu 05/39] rcu: Semicolon inside RCU_TRACE() for rcu.h Paul E. McKenney
2017-04-17 23:44 ` [PATCH v2 tip/core/rcu 06/39] rcu: Semicolon inside RCU_TRACE() for Tiny RCU Paul E. McKenney
2017-04-17 23:44 ` [PATCH v2 tip/core/rcu 07/39] rcu: Semicolon inside RCU_TRACE() for tree.c Paul E. McKenney
2017-04-17 23:44 ` [PATCH v2 tip/core/rcu 08/39] rcu: Pull rcu_sched_qs_mask into rcu_dynticks structure Paul E. McKenney
2017-04-17 23:44 ` [PATCH v2 tip/core/rcu 09/39] rcu: Pull rcu_qs_ctr " Paul E. McKenney
2017-04-17 23:44 ` [PATCH v2 tip/core/rcu 10/39] rcu: Eliminate flavor scan in rcu_momentary_dyntick_idle() Paul E. McKenney
2017-04-17 23:44 ` [PATCH v2 tip/core/rcu 11/39] rcu: Place guard on rcu_all_qs() and rcu_note_context_switch() actions Paul E. McKenney
2017-04-17 23:44 ` [PATCH v2 tip/core/rcu 12/39] rcu: Default RCU_FANOUT_LEAF to 16 unless explicitly changed Paul E. McKenney
2017-04-17 23:45 ` [PATCH v2 tip/core/rcu 13/39] srcu: Abstract multi-tail callback list handling Paul E. McKenney
2017-04-17 23:45 ` [PATCH v2 tip/core/rcu 14/39] srcu: Allow SRCU to access rcu_scheduler_active Paul E. McKenney
2017-04-17 23:45 ` [PATCH v2 tip/core/rcu 15/39] srcu: Allow early boot use of synchronize_srcu() Paul E. McKenney
2017-04-17 23:45 ` [PATCH v2 tip/core/rcu 16/39] rcu: Add single-element dequeue functions to rcu_segcblist Paul E. McKenney
2017-04-17 23:45 ` [PATCH v2 tip/core/rcu 17/39] srcu: Move rcu_seq_start() and friends to rcu.h Paul E. McKenney
2017-04-17 23:45 ` [PATCH v2 tip/core/rcu 18/39] rcu: Expedited wakeups need to be fully ordered Paul E. McKenney
2017-04-17 23:45 ` [PATCH v2 tip/core/rcu 19/39] rcu: Fix warning in rcu_seq_end() Paul E. McKenney
2017-04-17 23:45 ` [PATCH v2 tip/core/rcu 20/39] srcu: Push srcu_advance_batches() fastpath into common case Paul E. McKenney
2017-04-17 23:45 ` [PATCH v2 tip/core/rcu 21/39] srcu: Move to state-based grace-period sequencing Paul E. McKenney
2017-04-17 23:45 ` [PATCH v2 tip/core/rcu 22/39] srcu: Add grace-period sequence numbers Paul E. McKenney
2017-04-17 23:45 ` [PATCH v2 tip/core/rcu 23/39] srcu: Use rcu_segcblist to track SRCU callbacks Paul E. McKenney
2017-04-17 23:45 ` [PATCH v2 tip/core/rcu 24/39] srcu: Move combining-tree definitions for SRCU's benefit Paul E. McKenney
2017-04-17 23:45 ` [PATCH v2 tip/core/rcu 25/39] srcu: Move rcu_init_levelspread() to rcu_tree_node.h Paul E. McKenney
2017-04-17 23:45 ` [PATCH v2 tip/core/rcu 26/39] rcu: Remove redundant levelcnt[] array from rcu_init_one() Paul E. McKenney
2017-04-17 23:45 ` [PATCH v2 tip/core/rcu 27/39] srcu: Move rcu_node traversal macros to rcu.h Paul E. McKenney
2017-04-17 23:45 ` [PATCH v2 tip/core/rcu 28/39] srcu: Make num_rcu_lvl[] array be external Paul E. McKenney
2017-04-17 23:45 ` [PATCH v2 tip/core/rcu 29/39] srcu: Fix bogus try_check_zero() comment Paul E. McKenney
2017-04-17 23:45 ` [PATCH v2 tip/core/rcu 30/39] srcu: Improve rcu_seq grace-period-counter abstraction Paul E. McKenney
2017-04-17 23:45 ` [PATCH v2 tip/core/rcu 31/39] srcu: Allow a second bit in rcu_seq for SRCU state Paul E. McKenney
2017-04-17 23:45 ` [PATCH v2 tip/core/rcu 32/39] srcu: Merge ->srcu_state into ->srcu_gp_seq Paul E. McKenney
2017-04-17 23:45 ` [PATCH v2 tip/core/rcu 33/39] srcu: Crude control of expedited grace periods Paul E. McKenney
2017-04-17 23:45 ` [PATCH v2 tip/core/rcu 34/39] mm: Use static initialization for "srcu" Paul E. McKenney
2017-04-17 23:45 ` [PATCH v2 tip/core/rcu 35/39] srcu: Create a tiny SRCU Paul E. McKenney
2017-04-17 23:45 ` [PATCH v2 tip/core/rcu 36/39] srcutorture: Print Tiny SRCU reader statistics Paul E. McKenney
2017-04-17 23:45 ` [PATCH v2 tip/core/rcu 37/39] srcu: Introduce CLASSIC_SRCU Kconfig option Paul E. McKenney
2017-04-17 23:45 ` [PATCH v2 tip/core/rcu 38/39] srcu: Parallelize callback handling Paul E. McKenney
2017-04-17 23:45 ` [PATCH v2 tip/core/rcu 39/39] rcu: Make non-preemptive schedule be Tasks RCU quiescent state Paul E. McKenney
2017-04-19 16:58 ` [PATCH v3 tip/core/rcu 0/40] SRCU callback parallelization for 4.12 Paul E. McKenney
2017-04-19 16:57 ` [PATCH v3 tip/core/rcu 01/40] rcu: Maintain special bits at bottom of ->dynticks counter Paul E. McKenney
2017-04-19 16:57 ` [PATCH v3 tip/core/rcu 02/40] rcu: Make arch select smp_mb__after_unlock_lock() strength Paul E. McKenney
2017-04-19 16:58 ` [PATCH v3 tip/core/rcu 03/40] srcu: Consolidate batch checking into rcu_all_batches_empty() Paul E. McKenney
2017-04-19 16:58 ` [PATCH v3 tip/core/rcu 04/40] srcu: Check for tardy grace-period activity in cleanup_srcu_struct() Paul E. McKenney
2017-04-19 16:58 ` [PATCH v3 tip/core/rcu 05/40] rcu: Semicolon inside RCU_TRACE() for rcu.h Paul E. McKenney
2017-04-19 17:41 ` Joe Perches
2017-04-25 21:00 ` Paul E. McKenney
2017-04-25 21:13 ` Steven Rostedt
2017-04-25 21:27 ` Paul E. McKenney
2017-04-19 16:58 ` [PATCH v3 tip/core/rcu 06/40] rcu: Semicolon inside RCU_TRACE() for Tiny RCU Paul E. McKenney
2017-04-19 16:58 ` [PATCH v3 tip/core/rcu 07/40] rcu: Semicolon inside RCU_TRACE() for tree.c Paul E. McKenney
2017-04-19 16:58 ` [PATCH v3 tip/core/rcu 08/40] rcu: Pull rcu_sched_qs_mask into rcu_dynticks structure Paul E. McKenney
2017-04-19 16:58 ` [PATCH v3 tip/core/rcu 09/40] rcu: Pull rcu_qs_ctr " Paul E. McKenney
2017-04-19 16:58 ` [PATCH v3 tip/core/rcu 10/40] rcu: Eliminate flavor scan in rcu_momentary_dyntick_idle() Paul E. McKenney
2017-04-19 16:58 ` [PATCH v3 tip/core/rcu 11/40] rcu: Place guard on rcu_all_qs() and rcu_note_context_switch() actions Paul E. McKenney
2017-04-19 16:58 ` [PATCH v3 tip/core/rcu 12/40] rcu: Default RCU_FANOUT_LEAF to 16 unless explicitly changed Paul E. McKenney
2017-04-19 16:58 ` [PATCH v3 tip/core/rcu 13/40] srcu: Abstract multi-tail callback list handling Paul E. McKenney
2017-04-19 16:58 ` [PATCH v3 tip/core/rcu 14/40] srcu: Allow SRCU to access rcu_scheduler_active Paul E. McKenney
2017-04-19 16:58 ` [PATCH v3 tip/core/rcu 15/40] srcu: Allow early boot use of synchronize_srcu() Paul E. McKenney
2017-04-19 16:58 ` [PATCH v3 tip/core/rcu 16/40] rcu: Add single-element dequeue functions to rcu_segcblist Paul E. McKenney
2017-04-19 16:58 ` [PATCH v3 tip/core/rcu 17/40] srcu: Move rcu_seq_start() and friends to rcu.h Paul E. McKenney
2017-04-19 16:58 ` [PATCH v3 tip/core/rcu 18/40] rcu: Expedited wakeups need to be fully ordered Paul E. McKenney
2017-04-19 16:58 ` [PATCH v3 tip/core/rcu 19/40] rcu: Fix warning in rcu_seq_end() Paul E. McKenney
2017-04-19 16:58 ` [PATCH v3 tip/core/rcu 20/40] srcu: Push srcu_advance_batches() fastpath into common case Paul E. McKenney
2017-04-19 16:58 ` [PATCH v3 tip/core/rcu 21/40] srcu: Move to state-based grace-period sequencing Paul E. McKenney
2017-04-19 16:58 ` [PATCH v3 tip/core/rcu 22/40] srcu: Add grace-period sequence numbers Paul E. McKenney
2017-04-19 16:58 ` [PATCH v3 tip/core/rcu 23/40] srcu: Use rcu_segcblist to track SRCU callbacks Paul E. McKenney
2017-04-19 16:58 ` [PATCH v3 tip/core/rcu 24/40] srcu: Move combining-tree definitions for SRCU's benefit Paul E. McKenney
2017-04-19 16:58 ` [PATCH v3 tip/core/rcu 25/40] srcu: Move rcu_init_levelspread() to rcu_tree_node.h Paul E. McKenney
2017-04-19 16:58 ` [PATCH v3 tip/core/rcu 26/40] rcu: Remove redundant levelcnt[] array from rcu_init_one() Paul E. McKenney
2017-04-19 16:58 ` [PATCH v3 tip/core/rcu 27/40] srcu: Move rcu_node traversal macros to rcu.h Paul E. McKenney
2017-04-19 16:58 ` [PATCH v3 tip/core/rcu 28/40] srcu: Make num_rcu_lvl[] array be external Paul E. McKenney
2017-04-19 16:58 ` [PATCH v3 tip/core/rcu 29/40] srcu: Fix bogus try_check_zero() comment Paul E. McKenney
2017-04-19 16:58 ` [PATCH v3 tip/core/rcu 30/40] srcu: Improve rcu_seq grace-period-counter abstraction Paul E. McKenney
2017-04-19 16:58 ` [PATCH v3 tip/core/rcu 31/40] srcu: Allow a second bit in rcu_seq for SRCU state Paul E. McKenney
2017-04-19 16:58 ` [PATCH v3 tip/core/rcu 32/40] srcu: Merge ->srcu_state into ->srcu_gp_seq Paul E. McKenney
2017-04-19 16:58 ` [PATCH v3 tip/core/rcu 33/40] srcu: Crude control of expedited grace periods Paul E. McKenney
2017-04-19 16:58 ` [PATCH v3 tip/core/rcu 34/40] mm: Use static initialization for "srcu" Paul E. McKenney
2017-04-19 16:58 ` [PATCH v3 tip/core/rcu 35/40] srcu: Create a tiny SRCU Paul E. McKenney
2017-04-19 16:58 ` [PATCH v3 tip/core/rcu 36/40] srcutorture: Print Tiny SRCU reader statistics Paul E. McKenney
2017-04-19 16:58 ` [PATCH v3 tip/core/rcu 37/40] srcu: Introduce CLASSIC_SRCU Kconfig option Paul E. McKenney
2017-04-19 16:58 ` [PATCH v3 tip/core/rcu 38/40] srcu: Parallelize callback handling Paul E. McKenney
2017-04-19 16:58 ` [PATCH v3 tip/core/rcu 39/40] srcu: Expedite srcu_schedule_cbs_snp() callback invocation Paul E. McKenney
2017-04-19 16:58 ` [PATCH v3 tip/core/rcu 40/40] rcu: Make non-preemptive schedule be Tasks RCU quiescent state Paul E. McKenney
2017-09-28 9:37 ` Sasha Levin
2017-09-28 12:30 ` Paul E. McKenney [this message]
2017-09-28 15:38 ` Levin, Alexander (Sasha Levin)
2017-09-28 16:05 ` Paul E. McKenney
2017-09-28 16:18 ` Peter Zijlstra
2017-09-28 16:30 ` Paul E. McKenney
2017-09-29 9:30 ` Boqun Feng
2017-09-29 10:01 ` Paolo Bonzini
2017-09-29 10:25 ` Boqun Feng
2017-09-29 10:34 ` Peter Zijlstra
2017-09-29 11:44 ` Paolo Bonzini
2017-09-29 16:38 ` Paul E. McKenney
2017-09-29 16:36 ` Paul E. McKenney
2017-09-28 16:08 ` Peter Zijlstra
2017-09-28 16:23 ` Levin, Alexander (Sasha Levin)
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