From b3db80f77a95a45dbb2136f7b2a364dc797ea914 Mon Sep 17 00:00:00 2001
From: Thomas Gleixner <tglx@linutronix.de>
Date: Tue, 30 May 2017 23:15:54 +0200
Subject: [PATCH] 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
---
kernel/time/alarmtimer.c | 15 ++++++++++++++-
1 file changed, 14 insertions(+), 1 deletion(-)
diff --git a/kernel/time/alarmtimer.c b/kernel/time/alarmtimer.c
index 5b8cf4b618543..be85e3cbfe1b0 100644
--- a/kernel/time/alarmtimer.c
+++ b/kernel/time/alarmtimer.c
@@ -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 */
--
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