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]>
diff --git a/include/linux/hrtimer.h b/include/linux/hrtimer.h
index f79dcba..3fed27c 100644
--- a/include/linux/hrtimer.h
+++ b/include/linux/hrtimer.h
@@ -304,6 +304,13 @@
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,
