timerfd: introduce a new hrtimer_forward_now() function

I think that advancing the timer against the timer's current "now" can be a pretty common usage, so, w/out exposing hrtimer's internals, we add a new hrtimer_forward_now() function. Signed-off-by: Davide Libenzi <[email protected]> Cc: Michael Kerrisk <[email protected]> Cc: Thomas Gleixner <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
tdeneau · Feb 5, 2008 · 5e05ad7 · 5e05ad7
1 parent ed5d2ca
commit 5e05ad7
Showing 1 changed file with 7 additions and 0 deletions.
diff --git a/include/linux/hrtimer.h b/include/linux/hrtimer.h
@@ -304,6 +304,13 @@ static inline int hrtimer_is_queued(struct hrtimer *timer)
 extern unsigned long
 hrtimer_forward(struct hrtimer *timer, ktime_t now, ktime_t interval);
 
+/* Forward a hrtimer so it expires after the hrtimer's current now */
+static inline unsigned long hrtimer_forward_now(struct hrtimer *timer,
+						ktime_t interval)
+{
+	return hrtimer_forward(timer, timer->base->get_time(), interval);
+}
+
 /* Precise sleep: */
 extern long hrtimer_nanosleep(struct timespec *rqtp,
 			      struct timespec *rmtp,