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Commit ce6cf9a1 authored by Frederic Weisbecker's avatar Frederic Weisbecker Committed by Ingo Molnar
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nohz: Add hrtimer sanity check 



Signed-off-by: default avatarFrederic Weisbecker <fweisbec@gmail.com>
Signed-off-by: default avatarIngo Molnar <mingo@kernel.org>
parent b23afd38

kernel/time/tick-sched.c

+7 −2
Original line number Diff line number Diff line
@@ -771,8 +771,13 @@ static ktime_t tick_nohz_stop_sched_tick(struct tick_sched *ts, 
	tick = expires;



	/* Skip reprogram of event if its not changed */

	if (ts->tick_stopped && (expires == dev->next_event))

	if (ts->tick_stopped) {

		if (hrtimer_active(&ts->sched_timer))

			WARN_ON_ONCE(hrtimer_get_expires(&ts->sched_timer) < dev->next_event);



		if (expires == dev->next_event)

			goto out;

	}



	/*

	 * nohz_stop_sched_tick can be called several times before