Paul E. McKenney 36741bfcfb rcu-tasks: Idle tasks on offline CPUs are in quiescent states ...

commit 5c9a9ca44fda41c5e82f50efced5297a9c19760d upstream.

Any idle task corresponding to an offline CPU is in an RCU Tasks Trace
quiescent state.  This commit causes rcu_tasks_trace_postscan() to ignore
idle tasks for offline CPUs, which it can do safely due to CPU-hotplug
operations being disabled.

Signed-off-by: Paul E. McKenney <paulmck@kernel.org>
Cc: Neeraj Upadhyay <quic_neeraju@quicinc.com>
Cc: Eric Dumazet <edumazet@google.com>
Cc: Alexei Starovoitov <ast@kernel.org>
Cc: Andrii Nakryiko <andrii@kernel.org>
Cc: Martin KaFai Lau <kafai@fb.com>
Cc: KP Singh <kpsingh@kernel.org>
Signed-off-by: Krister Johansen <kjlx@templeofstupid.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>

2024-12-14 19:47:42 +01:00

..

Kconfig

rcu: Make TASKS_RUDE_RCU select IRQ_WORK

2022-06-09 10:20:51 +02:00

Kconfig.debug

Merge branch 'strictgp.2020.08.24a' into HEAD

2020-09-03 09:47:42 -07:00

Makefile

rcuperf: Change rcuperf to rcuscale

2020-08-24 18:39:24 -07:00

rcu_segcblist.c

rcu/segcblist: Prevent useless GP start if no CBs to accelerate

2020-09-03 09:39:59 -07:00

rcu_segcblist.h

rcu: Remove kfree_rcu() special casing and lazy-callback handling

2020-01-24 10:24:31 -08:00

rcu.h

srcu: Fix broken node geometry after early ssp init

2021-07-20 16:05:38 +02:00

rcuscale.c

rcuscale: Provide clear error when async specified without primitives

2024-10-17 15:08:13 +02:00

rcutorture.c

rcutorture: Fix rcu_torture_fwd_cb_cr() data race

2024-08-19 05:41:12 +02:00

refscale.c

refscale: Fix uninitalized use of wait_queue_head_t

2023-09-19 12:20:07 +02:00

srcutiny.c

srcu: Provide polling interfaces for Tiny SRCU grace periods

2021-09-03 10:09:30 +02:00

srcutree.c

srcu: Provide polling interfaces for Tree SRCU grace periods

2021-09-03 10:09:29 +02:00

sync.c

rcu/sync: Simplify the state machine

2019-05-28 09:05:23 -07:00

tasks.h

rcu-tasks: Idle tasks on offline CPUs are in quiescent states

2024-12-14 19:47:42 +01:00

tiny.c

rcu: Rename *_kfree_callback/*_kfree_rcu_offset/kfree_call_*

2020-06-29 11:59:25 -07:00

tree_exp.h

rcu: Prevent expedited GP from enabling tick on offline CPU

2023-09-02 09:18:13 +02:00

tree_plugin.h

rcu: Don't deboost before reporting expedited quiescent state

2022-03-28 09:57:10 +02:00

tree_stall.h

rcu: Fix stall-warning deadlock due to non-release of rcu_node ->lock

2021-09-15 09:50:28 +02:00

tree.c

rcu: kmemleak: Ignore kmemleak false positives when RCU-freeing objects

2023-11-28 16:54:57 +00:00

tree.h

rcu: Prevent lockdep-RCU splats on lock acquisition/release

2023-01-14 10:16:29 +01:00

update.c

rcu: Reject RCU_LOCKDEP_WARN() false positives

2021-07-20 16:05:38 +02:00