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| author | Thomas Gleixner <tglx@linutronix.de> | 2009-01-05 11:28:19 +0100 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2009-01-05 13:14:32 +0100 |
| commit | 8bdec955b0da2ffbd10eb9b200651dd1f9e366f2 (patch) | |
| tree | 8f44e541adf7e6110f064ed70e9f0751be98be95 /kernel | |
| parent | fe0bdec68b77020281dc814805edfe594ae89e0f (diff) | |
| download | kernel_samsung_smdk4412-8bdec955b0da2ffbd10eb9b200651dd1f9e366f2.zip kernel_samsung_smdk4412-8bdec955b0da2ffbd10eb9b200651dd1f9e366f2.tar.gz kernel_samsung_smdk4412-8bdec955b0da2ffbd10eb9b200651dd1f9e366f2.tar.bz2 | |
hrtimer: splitout peek ahead functionality
Impact: cleanup
Provide a peek ahead function that assumes irqs disabled, allows for micro
optimizations.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'kernel')
| -rw-r--r-- | kernel/hrtimer.c | 24 |
1 files changed, 17 insertions, 7 deletions
diff --git a/kernel/hrtimer.c b/kernel/hrtimer.c index eb2bfef..8f7001c 100644 --- a/kernel/hrtimer.c +++ b/kernel/hrtimer.c @@ -1243,6 +1243,22 @@ void hrtimer_interrupt(struct clock_event_device *dev) } } +/* + * local version of hrtimer_peek_ahead_timers() called with interrupts + * disabled. + */ +static void __hrtimer_peek_ahead_timers(void) +{ + struct tick_device *td; + + if (!hrtimer_hres_active()) + return; + + td = &__get_cpu_var(tick_cpu_device); + if (td && td->evtdev) + hrtimer_interrupt(td->evtdev); +} + /** * hrtimer_peek_ahead_timers -- run soft-expired timers now * @@ -1254,16 +1270,10 @@ void hrtimer_interrupt(struct clock_event_device *dev) */ void hrtimer_peek_ahead_timers(void) { - struct tick_device *td; unsigned long flags; - if (!hrtimer_hres_active()) - return; - local_irq_save(flags); - td = &__get_cpu_var(tick_cpu_device); - if (td && td->evtdev) - hrtimer_interrupt(td->evtdev); + __hrtimer_peek_ahead_timers(); local_irq_restore(flags); } |