From e7561f1633ac735df48c55ad09a2530e9ab9fab1 Mon Sep 17 00:00:00 2001 From: Thomas Gleixner Date: Tue, 30 May 2017 23:15:55 +0200 Subject: [PATCH] alarmtimer: Implement forward callback Preparatory change to utilize the common posix timer mechanisms. Signed-off-by: Thomas Gleixner Cc: Peter Zijlstra Cc: John Stultz Link: http://lkml.kernel.org/r/20170530211657.513694229@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 be85e3cbfe1b..6082cf1af876 100644 --- a/kernel/time/alarmtimer.c +++ b/kernel/time/alarmtimer.c @@ -548,6 +548,18 @@ static void alarm_timer_rearm(struct k_itimer *timr) alarm_start(alarm, alarm->node.expires); } +/** + * 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 @@ -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 */