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alarmtimer: Implement timer_rearm() callback 

Preparatory change to utilize the common posix timer mechanisms.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: John Stultz <john.stultz@linaro.org>
Link: http://lkml.kernel.org/r/20170530211657.434598989@linutronix.de
This commit is contained in:
Thomas Gleixner 2017-05-30 23:15:54 +02:00
parent eae1c4ae27
commit b3db80f77a
1 changed files with 14 additions and 1 deletions
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15
kernel/time/alarmtimer.c
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@ -536,6 +536,18 @@ static enum alarmtimer_restart alarm_handle_timer(struct alarm *alarm,
return result;
}
/**
* alarm_timer_rearm - Posix timer callback for rearming timer
* @timr: Pointer to the posixtimer data struct
*/
static void alarm_timer_rearm(struct k_itimer *timr)
{
struct alarm *alarm = &timr->it.alarm.alarmtimer;
timr->it_overrun += alarm_forward_now(alarm, timr->it_interval);
alarm_start(alarm, alarm->node.expires);
}
/**
* alarm_clock_getres - posix getres interface
* @which_clock: clockid
@ -594,7 +606,7 @@ static int alarm_timer_create(struct k_itimer *new_timer)
/**
* alarm_timer_get - posix timer_get interface
* @new_timer: k_itimer pointer
* @timr: k_itimer pointer
* @cur_setting: itimerspec data to fill
*
* Copies out the current itimerspec data
@ -863,6 +875,7 @@ const struct k_clock alarm_clock = {
.timer_set = alarm_timer_set,
.timer_del = alarm_timer_del,
.timer_get = alarm_timer_get,
.timer_rearm = alarm_timer_rearm,
.nsleep = alarm_timer_nsleep,
};
#endif /* CONFIG_POSIX_TIMERS */