Messages in this thread Patch in this message | | | Date | Wed, 28 Aug 2019 11:03:33 -0000 | From | "tip-bot2 for Sebastian Andrzej Siewior" <> | Subject | [tip: timers/core] tick: Mark sched_timer to expire in hard interrupt context |
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The following commit has been merged into the timers/core branch of tip:
Commit-ID: 71fed982d63cb2bb88db6f36059e3b14a7913846 Gitweb: https://git.kernel.org/tip/71fed982d63cb2bb88db6f36059e3b14a7913846 Author: Sebastian Andrzej Siewior <bigeasy@linutronix.de> AuthorDate: Fri, 23 Aug 2019 13:38:45 +02:00 Committer: Thomas Gleixner <tglx@linutronix.de> CommitterDate: Wed, 28 Aug 2019 13:01:26 +02:00
tick: Mark sched_timer to expire in hard interrupt context
sched_timer must be initialized with the _HARD mode suffix to ensure expiry in hard interrupt context on RT.
The previous conversion to HARD expiry mode missed on one instance in tick_nohz_switch_to_nohz(). Fix it up.
Fixes: 902a9f9c50905 ("tick: Mark tick related hrtimers to expiry in hard interrupt context") Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Link: https://lkml.kernel.org/r/20190823113845.12125-3-bigeasy@linutronix.de
--- kernel/time/tick-sched.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/kernel/time/tick-sched.c b/kernel/time/tick-sched.c index 01ff32a..9558517 100644 --- a/kernel/time/tick-sched.c +++ b/kernel/time/tick-sched.c @@ -1233,7 +1233,7 @@ static void tick_nohz_switch_to_nohz(void) * Recycle the hrtimer in ts, so we can share the * hrtimer_forward with the highres code. */ - hrtimer_init(&ts->sched_timer, CLOCK_MONOTONIC, HRTIMER_MODE_ABS); + hrtimer_init(&ts->sched_timer, CLOCK_MONOTONIC, HRTIMER_MODE_ABS_HARD); /* Get the next period */ next = tick_init_jiffy_update();
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