sched: Clarify wake_up_q()'s write to task->wake_q.next

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[ Upstream commit bcc6244e13 ]

Clarify that wake_up_q() does an atomic write to task->wake_q.next, after
which a concurrent __wake_q_add() can immediately overwrite
task->wake_q.next again.

Signed-off-by: Jann Horn <jannh@google.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Link: https://lkml.kernel.org/r/20250129-sched-wakeup-prettier-v1-1-2f51f5f663fa@google.com
Signed-off-by: Sasha Levin <sashal@kernel.org>

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Jann Horn 2025-01-29 20:53:03 +01:00 • committed by Greg Kroah-Hartman

parent c39bd0df25

commit 30a40b5925

1 changed files with 3 additions and 2 deletions

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kernel/sched/core.c

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