diff options
| author |   Sebastian Andrzej Siewior <bigeasy@linutronix.de> | 2019-07-26 20:30:52 +0200 |
|---|---|---|
| committer |   Thomas Gleixner <tglx@linutronix.de> | 2019-08-01 20:51:19 +0200 |
| commit | d5096aa65acd0ef2d18ac8247260ab4481ade399 (patch) | |
| tree | 7fc314c38314a2af2aa5e436fcca0c304086df81 /kernel/sched/rt.c | |
| parent | hrtimer: Make enqueue mode check work on RT (diff) | |
| download | linux-dev-d5096aa65acd0ef2d18ac8247260ab4481ade399.tar.xz linux-dev-d5096aa65acd0ef2d18ac8247260ab4481ade399.zip | |
sched: Mark hrtimers to expire in hard interrupt context
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
Diffstat (limited to 'kernel/sched/rt.c')
| -rw-r--r-- | kernel/sched/rt.c | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/kernel/sched/rt.c b/kernel/sched/rt.c index a532558a5176..da3e85e61013 100644 --- a/kernel/sched/rt.c +++ b/kernel/sched/rt.c @@ -45,8 +45,8 @@ void init_rt_bandwidth(struct rt_bandwidth *rt_b, u64 period, u64 runtime) raw_spin_lock_init(&rt_b->rt_runtime_lock); - hrtimer_init(&rt_b->rt_period_timer, - CLOCK_MONOTONIC, HRTIMER_MODE_REL); + hrtimer_init(&rt_b->rt_period_timer, CLOCK_MONOTONIC, + HRTIMER_MODE_REL_HARD); rt_b->rt_period_timer.function = sched_rt_period_timer; } @@ -67,7 +67,8 @@ static void start_rt_bandwidth(struct rt_bandwidth *rt_b) * to update the period. */ hrtimer_forward_now(&rt_b->rt_period_timer, ns_to_ktime(0)); - hrtimer_start_expires(&rt_b->rt_period_timer, HRTIMER_MODE_ABS_PINNED); + hrtimer_start_expires(&rt_b->rt_period_timer, + HRTIMER_MODE_ABS_PINNED_HARD); } raw_spin_unlock(&rt_b->rt_runtime_lock); } |