From 0ccfc3ce82fbc2b2df5ab11ebfa43f894a6a4ae7 Mon Sep 17 00:00:00 2001 From: Todd Poynor Date: Wed, 8 May 2013 15:49:18 -0700 Subject: alarmtimer: add alarm_restart Analogous to hrtimer_restart, restart an alarmtimer after the expires time has already been updated (as with alarm_forward). Change-Id: Ia2613bbb467404cb2c35c11efa772bc56294963a Signed-off-by: Todd Poynor --- kernel/time/alarmtimer.c | 12 ++++++++++++ 1 file changed, 12 insertions(+) (limited to 'kernel') diff --git a/kernel/time/alarmtimer.c b/kernel/time/alarmtimer.c index f11d83b1294..059e78b1267 100644 --- a/kernel/time/alarmtimer.c +++ b/kernel/time/alarmtimer.c @@ -324,6 +324,18 @@ int alarm_start(struct alarm *alarm, ktime_t start) return ret; } +void alarm_restart(struct alarm *alarm) +{ + struct alarm_base *base = &alarm_bases[alarm->type]; + unsigned long flags; + + spin_lock_irqsave(&base->lock, flags); + hrtimer_set_expires(&alarm->timer, alarm->node.expires); + hrtimer_restart(&alarm->timer); + alarmtimer_enqueue(base, alarm); + spin_unlock_irqrestore(&base->lock, flags); +} + /** * alarm_try_to_cancel - Tries to cancel an alarm timer * @alarm: ptr to alarm to be canceled -- cgit v1.2.3