From e344c9e76bc6af997926171bfd90d25bbae0a2c5 Mon Sep 17 00:00:00 2001 From: Thomas Gleixner Date: Tue, 30 May 2017 23:15:57 +0200 Subject: [PATCH] alarmtimer: Implement try_to_cancel 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/20170530211657.670026824@linutronix.de --- kernel/time/alarmtimer.c | 10 ++++++++++ 1 file changed, 10 insertions(+) diff --git a/kernel/time/alarmtimer.c b/kernel/time/alarmtimer.c index 02ddc40f19fe..374bd855a488 100644 --- a/kernel/time/alarmtimer.c +++ b/kernel/time/alarmtimer.c @@ -572,6 +572,15 @@ static ktime_t alarm_timer_remaining(struct k_itimer *timr, ktime_t now) return ktime_sub(now, alarm->node.expires); } +/** + * alarm_timer_try_to_cancel - Posix timer callback to cancel a timer + * @timr: Pointer to the posixtimer data struct + */ +static int alarm_timer_try_to_cancel(struct k_itimer *timr) +{ + return alarm_try_to_cancel(&timr->it.alarm.alarmtimer); +} + /** * alarm_clock_getres - posix getres interface * @which_clock: clockid @@ -902,6 +911,7 @@ const struct k_clock alarm_clock = { .timer_rearm = alarm_timer_rearm, .timer_forward = alarm_timer_forward, .timer_remaining = alarm_timer_remaining, + .timer_try_to_cancel = alarm_timer_try_to_cancel, .nsleep = alarm_timer_nsleep, }; #endif /* CONFIG_POSIX_TIMERS */