linux-kernel - [PATCH 3/4] timerfd: Factor out timer-type unspecific timerfd

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Date:	Sat,  1 Sep 2012 22:45:21 -0700
From:	Anton Vorontsov <anton.vorontsov@...aro.org>
To:	Thomas Gleixner <tglx@...utronix.de>
Cc:	Pekka Enberg <penberg@...nel.org>,
	Leonid Moiseichuk <leonid.moiseichuk@...ia.com>,
	Bartlomiej Zolnierkiewicz <b.zolnierkie@...sung.com>,
	Colin Cross <ccross@...roid.com>,
	Arve Hjønnevåg <arve@...roid.com>,
	Davide Libenzi <davidel@...ilserver.org>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Ingo Molnar <mingo@...e.hu>,
	John Stultz <john.stultz@...aro.org>, linux-pm@...r.kernel.org,
	linux-kernel@...r.kernel.org, linaro-kernel@...ts.linaro.org,
	patches@...aro.org, kernel-team@...roid.com
Subject: [PATCH 3/4] timerfd: Factor out timer-type unspecific timerfd_expire()

There is nothing hrtimer-specific inside the timerfd_tmrproc(), except
the function prototype. We're about to add other timer types, so factor
out generic timerfd_expire() helper from timerfd_tmrproc().

Signed-off-by: Anton Vorontsov <anton.vorontsov@...aro.org>
---
 fs/timerfd.c | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/fs/timerfd.c b/fs/timerfd.c
index ecfb3f3..222db32 100644
--- a/fs/timerfd.c
+++ b/fs/timerfd.c
@@ -45,9 +45,8 @@ static DEFINE_SPINLOCK(cancel_lock);
  * flag, but we do not re-arm the timer (in case it's necessary,
  * tintv.tv64 != 0) until the timer is accessed.
  */
-static enum hrtimer_restart timerfd_tmrproc(struct hrtimer *htmr)
+static void timerfd_expire(struct timerfd_ctx *ctx)
 {
-	struct timerfd_ctx *ctx = container_of(htmr, struct timerfd_ctx, tmr);
 	unsigned long flags;
 
 	spin_lock_irqsave(&ctx->wqh.lock, flags);
@@ -56,6 +55,11 @@ static enum hrtimer_restart timerfd_tmrproc(struct hrtimer *htmr)
 	wake_up_locked(&ctx->wqh);
 	spin_unlock_irqrestore(&ctx->wqh.lock, flags);
 
+}
+
+static enum hrtimer_restart timerfd_tmrproc(struct hrtimer *htmr)
+{
+	timerfd_expire(container_of(htmr, struct timerfd_ctx, tmr));
 	return HRTIMER_NORESTART;
 }
 
-- 
1.7.11.5

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