From 17a1b8826b451c80e7999a7c68e06b70579b2b8f Mon Sep 17 00:00:00 2001 From: Thomas Gleixner Date: Tue, 13 Jul 2021 15:39:53 +0200 Subject: hrtimer: Add bases argument to clock_was_set() clock_was_set() unconditionaly invokes retrigger_next_event() on all online CPUs. This was necessary because that mechanism was also used for resume from suspend to idle which is not longer the case. The bases arguments allows the callers of clock_was_set() to hand in a mask which tells clock_was_set() which of the hrtimer clock bases are affected by the clock setting. This mask will be used in the next step to check whether a CPU base has timers queued on a clock base affected by the event and avoid the SMP function call if there are none. Add a @bases argument, provide defines for the active bases masking and fixup all callsites. Signed-off-by: Thomas Gleixner Link: https://lore.kernel.org/r/20210713135158.691083465@linutronix.de --- kernel/time/hrtimer.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'kernel/time/hrtimer.c') diff --git a/kernel/time/hrtimer.c b/kernel/time/hrtimer.c index 68e56f0ecb09..c8af165c04eb 100644 --- a/kernel/time/hrtimer.c +++ b/kernel/time/hrtimer.c @@ -880,7 +880,7 @@ static void hrtimer_reprogram(struct hrtimer *timer, bool reprogram) * in the tick, which obviously might be stopped, so this has to bring out * the remote CPU which might sleep in idle to get this sorted. */ -void clock_was_set(void) +void clock_was_set(unsigned int bases) { if (!hrtimer_hres_active() && !tick_nohz_active) goto out_timerfd; @@ -894,7 +894,7 @@ out_timerfd: static void clock_was_set_work(struct work_struct *work) { - clock_was_set(); + clock_was_set(CLOCK_SET_WALL); } static DECLARE_WORK(hrtimer_work, clock_was_set_work); -- cgit v1.2.3