linux-kernel - [patch 1/4] new timerfd API v2 - introduce a new hrtimer_forward

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Date:	Mon, 24 Sep 2007 13:22:37 -0700
From:	Davide Libenzi <davidel@...ilserver.org>
To:	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Cc:	Michael Kerrisk <mtk-manpages@....net>,
	Thomas Gleixner <tglx@...utronix.de>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Linus Torvalds <torvalds@...ux-foundation.org>
Subject: [patch 1/4] new timerfd API v2 - 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 <davidel@...ilserver.org>


- Davide


---
 include/linux/hrtimer.h |    7 +++++++
 1 file changed, 7 insertions(+)

Index: linux-2.6.mod/include/linux/hrtimer.h
===================================================================
--- linux-2.6.mod.orig/include/linux/hrtimer.h	2007-09-24 12:27:20.000000000 -0700
+++ linux-2.6.mod/include/linux/hrtimer.h	2007-09-24 12:29:39.000000000 -0700
@@ -298,6 +298,13 @@
 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 __user *rmtp,

-
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