diff options
| author | John Stultz <john.stultz@linaro.org> | 2011-08-10 11:08:07 -0700 |
|---|---|---|
| committer | John Stultz <john.stultz@linaro.org> | 2011-08-10 14:55:22 -0700 |
| commit | 54da23b720d5d612f8f1669f9ed3744008fb7382 (patch) | |
| tree | 52bfd90a34c4ad9de858ecb30d212104d0176845 /kernel | |
| parent | 4b41308d2d0398409620613c7eaaaf52c738b042 (diff) | |
| download | linux-54da23b720d5d612f8f1669f9ed3744008fb7382.tar.bz2 | |
alarmtimers: Push rearming peroidic timers down into alamrtimer handler
This patch pushes the periodic alarmtimer re-arming down into the alarmtimer
handler, mimicking how hrtimers handle this.
CC: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: John Stultz <john.stultz@linaro.org>
Diffstat (limited to 'kernel')
| -rw-r--r-- | kernel/time/alarmtimer.c | 20 |
1 files changed, 13 insertions, 7 deletions
diff --git a/kernel/time/alarmtimer.c b/kernel/time/alarmtimer.c index 9e786053ffa2..55e634ea6054 100644 --- a/kernel/time/alarmtimer.c +++ b/kernel/time/alarmtimer.c @@ -174,6 +174,7 @@ static enum hrtimer_restart alarmtimer_fired(struct hrtimer *timer) unsigned long flags; ktime_t now; int ret = HRTIMER_NORESTART; + int restart = ALARMTIMER_NORESTART; spin_lock_irqsave(&base->lock, flags); now = base->gettime(); @@ -188,16 +189,16 @@ static enum hrtimer_restart alarmtimer_fired(struct hrtimer *timer) timerqueue_del(&base->timerqueue, &alarm->node); alarm->enabled = 0; - /* Re-add periodic timers */ - if (alarm->period.tv64) { - alarm->node.expires = ktime_add(expired, alarm->period); - timerqueue_add(&base->timerqueue, &alarm->node); - alarm->enabled = 1; - } + spin_unlock_irqrestore(&base->lock, flags); if (alarm->function) - alarm->function(alarm, now); + restart = alarm->function(alarm, now); spin_lock_irqsave(&base->lock, flags); + + if (restart != ALARMTIMER_NORESTART) { + timerqueue_add(&base->timerqueue, &alarm->node); + alarm->enabled = 1; + } } if (next) { @@ -373,6 +374,11 @@ static enum alarmtimer_restart alarm_handle_timer(struct alarm *alarm, if (posix_timer_event(ptr, 0) != 0) ptr->it_overrun++; + /* Re-add periodic timers */ + if (alarm->period.tv64) { + alarm->node.expires = ktime_add(now, alarm->period); + return ALARMTIMER_RESTART; + } return ALARMTIMER_NORESTART; } |