sched/core: Check for rcu_read_lock_any_held() in idle_get_state()

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Similar to commit 71fedc41c2 ("sched/fair: Switch to
rcu_dereference_all()"), switch to checking for rcu_read_lock_any_held()
in idle_get_state() to allow removing superfluous rcu_read_lock()
regions in the fair task's wakeup path where the pi_lock is held and
IRQs are disabled.

Signed-off-by: K Prateek Nayak <kprateek.nayak@amd.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Reviewed-by: Dietmar Eggemann <dietmar.eggemann@arm.com>
Tested-by: Dietmar Eggemann <dietmar.eggemann@arm.com>
Link: https://patch.msgid.link/20260312044434.1974-7-kprateek.nayak@amd.com

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K Prateek Nayak 2026-03-12 04:44:31 +00:00 • committed by Peter Zijlstra

parent 10febd3975

commit f494bfb046

1 changed files with 1 additions and 1 deletions

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kernel/sched/sched.h

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