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| author | John Stultz <john.stultz@linaro.org> | 2011-08-10 11:31:03 -0700 |
|---|---|---|
| committer | John Stultz <john.stultz@linaro.org> | 2011-08-10 14:55:23 -0700 |
| commit | dce75a8c71819ed4c7efdcd53c9b6f6356dc8cb5 (patch) | |
| tree | 76d25888bb83814fc1f9d5f8838483730ca59882 /include/linux/alarmtimer.h | |
| parent | 54da23b720d5d612f8f1669f9ed3744008fb7382 (diff) | |
| download | lwn-dce75a8c71819ed4c7efdcd53c9b6f6356dc8cb5.tar.gz lwn-dce75a8c71819ed4c7efdcd53c9b6f6356dc8cb5.zip | |
alarmtimers: Add alarm_forward functionality
In order to avoid wasting time expiring and re-adding very high freq
periodic alarmtimers, introduce alarm_forward() which is similar to
hrtimer_forward and moves the timer to the next future expiration time
and returns the number of overruns.
CC: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: John Stultz <john.stultz@linaro.org>
Diffstat (limited to 'include/linux/alarmtimer.h')
| -rw-r--r-- | include/linux/alarmtimer.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/include/linux/alarmtimer.h b/include/linux/alarmtimer.h index 0289eb29e794..17535963b274 100644 --- a/include/linux/alarmtimer.h +++ b/include/linux/alarmtimer.h @@ -42,4 +42,6 @@ void alarm_init(struct alarm *alarm, enum alarmtimer_type type, void alarm_start(struct alarm *alarm, ktime_t start, ktime_t period); void alarm_cancel(struct alarm *alarm); +u64 alarm_forward(struct alarm *alarm, ktime_t now, ktime_t interval); + #endif |