[patch 21/26] alarmtimer: Implement timer_rearm() callback

Thomas Gleixner
2017-05-30T21:42:17Z

[-- Attachment #1: alarmtimer--Implement-timer_rearm---callback.patch --]
[-- Type: text/plain, Size: 1330 bytes --]

Preparatory change to utilize the common posix timer mechanisms.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
kernel/time/alarmtimer.c | 15 ++++++++++++++-
1 file changed, 14 insertions(+), 1 deletion(-)

--- a/kernel/time/alarmtimer.c
+++ b/kernel/time/alarmtimer.c
@@ -537,6 +537,18 @@ static enum alarmtimer_restart alarm_han
}

/**
+ * 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
* @tp: timespec to fill
@@ -594,7 +606,7 @@ static int alarm_timer_create(struct k_i

/**
* 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 */