linux-kernel - [PATCH V2 17/36] hrtimer: don't check if timer is queued in __remove

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Date:	Fri,  4 Apr 2014 12:06:00 +0530
From:	Viresh Kumar <viresh.kumar@...aro.org>
To:	tglx@...utronix.de
Cc:	linaro-kernel@...ts.linaro.org, fweisbec@...il.com,
	linaro-networking@...aro.org, Arvind.Chauhan@....com,
	linux-kernel@...r.kernel.org,
	Viresh Kumar <viresh.kumar@...aro.org>
Subject: [PATCH V2 17/36] hrtimer: don't check if timer is queued in __remove_hrtimer()

__remove_hrtimer() is called from three locations: remove_hrtimer(),
__run_hrtimer() and migrate_hrtimer_list(). And all these guarantee that timer
was queued earlier. And so there is no need to check if the timer is queued or
not in __remove_hrtimer().

Signed-off-by: Viresh Kumar <viresh.kumar@...aro.org>
---
 kernel/hrtimer.c | 5 +----
 1 file changed, 1 insertion(+), 4 deletions(-)

diff --git a/kernel/hrtimer.c b/kernel/hrtimer.c
index 1a1fdc0..58b5e3f 100644
--- a/kernel/hrtimer.c
+++ b/kernel/hrtimer.c
@@ -886,8 +886,6 @@ static void __remove_hrtimer(struct hrtimer *timer,
 			     unsigned long newstate, int reprogram)
 {
 	struct timerqueue_node *next_timer;
-	if (!(timer->state & HRTIMER_STATE_ENQUEUED))
-		goto out;
 
 	next_timer = timerqueue_getnext(&base->active);
 	timerqueue_del(&base->active, &timer->node);
@@ -903,10 +901,9 @@ static void __remove_hrtimer(struct hrtimer *timer,
 			hrtimer_force_reprogram(base->cpu_base, 1);
 	}
 #endif
+	timer->state = newstate;
 	if (!timerqueue_getnext(&base->active))
 		base->cpu_base->active_bases &= ~(1 << base->index);
-out:
-	timer->state = newstate;
 }
 
 /*
-- 
1.7.12.rc2.18.g61b472e

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