posix-timers: Add cond_resched() to posix_timer_add() search loop

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[ Upstream commit 5f2909c6cd ]

With a large number of POSIX timers the search for a valid ID might cause a
soft lockup on PREEMPT_NONE/VOLUNTARY kernels.

Add cond_resched() to the loop to prevent that.

[ tglx: Split out from Eric's series ]

Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Frederic Weisbecker <frederic@kernel.org>
Link: https://lore.kernel.org/all/20250214135911.2037402-2-edumazet@google.com
Link: https://lore.kernel.org/all/20250308155623.635612865@linutronix.de
Signed-off-by: Sasha Levin <sashal@kernel.org>

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Eric Dumazet 2025-03-08 17:48:17 +01:00 • committed by Greg Kroah-Hartman

parent 135dde13b9

commit d0dc233fe2

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kernel/time/posix-timers.c

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