Commit-ID: e7561f1633ac735df48c55ad09a2530e9ab9fab1 Gitweb: http://git.kernel.org/tip/e7561f1633ac735df48c55ad09a2530e9ab9fab1 Author: Thomas Gleixner <t...@linutronix.de> AuthorDate: Tue, 30 May 2017 23:15:55 +0200 Committer: Thomas Gleixner <t...@linutronix.de> CommitDate: Sun, 4 Jun 2017 15:40:30 +0200
alarmtimer: Implement forward callback Preparatory change to utilize the common posix timer mechanisms. Signed-off-by: Thomas Gleixner <t...@linutronix.de> Cc: Peter Zijlstra <pet...@infradead.org> Cc: John Stultz <john.stu...@linaro.org> Link: http://lkml.kernel.org/r/20170530211657.513694...@linutronix.de --- kernel/time/alarmtimer.c | 13 +++++++++++++ 1 file changed, 13 insertions(+) diff --git a/kernel/time/alarmtimer.c b/kernel/time/alarmtimer.c index be85e3c..6082cf1 100644 --- a/kernel/time/alarmtimer.c +++ b/kernel/time/alarmtimer.c @@ -549,6 +549,18 @@ static void alarm_timer_rearm(struct k_itimer *timr) } /** + * alarm_timer_forward - Posix timer callback for forwarding timer + * @timr: Pointer to the posixtimer data struct + * @now: Current time to forward the timer against + */ +static int alarm_timer_forward(struct k_itimer *timr, ktime_t now) +{ + struct alarm *alarm = &timr->it.alarm.alarmtimer; + + return (int) alarm_forward(alarm, timr->it_interval, now); +} + +/** * alarm_clock_getres - posix getres interface * @which_clock: clockid * @tp: timespec to fill @@ -876,6 +888,7 @@ const struct k_clock alarm_clock = { .timer_del = alarm_timer_del, .timer_get = alarm_timer_get, .timer_rearm = alarm_timer_rearm, + .timer_forward = alarm_timer_forward, .nsleep = alarm_timer_nsleep, }; #endif /* CONFIG_POSIX_TIMERS */
