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sched: Mark hrtimers to expire in hard interrupt context

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The scheduler related hrtimers need to expire in hard interrupt context
even on PREEMPT_RT enabled kernels. Mark then as such.

No functional change.

[ tglx: Split out from larger combo patch. Add changelog. ]

Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Link: https://lkml.kernel.org/r/20190726185753.077004842@linutronix.de
This commit is contained in:
Sebastian Andrzej Siewior
2019-07-26 20:30:52 +02:00
committed by Thomas Gleixner
parent 0ab6a3ddba
commit d5096aa65a
3 changed files with 9 additions and 8 deletions
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6
kernel/sched/core.c
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@@ -255,7 +255,7 @@ static void __hrtick_restart(struct rq *rq)
{
struct hrtimer *timer = &rq->hrtick_timer;
hrtimer_start_expires(timer, HRTIMER_MODE_ABS_PINNED);
hrtimer_start_expires(timer, HRTIMER_MODE_ABS_PINNED_HARD);
}
/*
@@ -314,7 +314,7 @@ void hrtick_start(struct rq *rq, u64 delay)
*/
delay = max_t(u64, delay, 10000LL);
hrtimer_start(&rq->hrtick_timer, ns_to_ktime(delay),
HRTIMER_MODE_REL_PINNED);
HRTIMER_MODE_REL_PINNED_HARD);
}
#endif /* CONFIG_SMP */
@@ -328,7 +328,7 @@ static void hrtick_rq_init(struct rq *rq)
rq->hrtick_csd.info = rq;
#endif
hrtimer_init(&rq->hrtick_timer, CLOCK_MONOTONIC, HRTIMER_MODE_REL);
hrtimer_init(&rq->hrtick_timer, CLOCK_MONOTONIC, HRTIMER_MODE_REL_HARD);
rq->hrtick_timer.function = hrtick;
}
#else /* CONFIG_SCHED_HRTICK */