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authorThomas Gleixner <tglx@linutronix.de>2015-04-14 21:09:15 +0000
committerThomas Gleixner <tglx@linutronix.de>2015-04-22 17:06:51 +0200
commitccdd92c17e144c8494f4c94ab85b48d297545cec (patch)
treedd3064ecb353c4ef961f06b88a18df99e81f0709 /kernel/locking/rtmutex.c
parent2e4b0d3fe88bc2618fd5d081ace338a70f8c23da (diff)
rtmutex: Remove bogus hrtimer_active() check
The check for hrtimer_active() after starting the timer is pointless. If the timer is inactive it has expired already and therefor the task pointer is already NULL. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Acked-by: Peter Zijlstra <peterz@infradead.org> Cc: Preeti U Murthy <preeti@linux.vnet.ibm.com> Cc: Viresh Kumar <viresh.kumar@linaro.org> Cc: Marcelo Tosatti <mtosatti@redhat.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Link: http://lkml.kernel.org/r/20150414203503.081830481@linutronix.de Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Diffstat (limited to 'kernel/locking/rtmutex.c')
-rw-r--r--kernel/locking/rtmutex.c5
1 files changed, 1 insertions, 4 deletions
diff --git a/kernel/locking/rtmutex.c b/kernel/locking/rtmutex.c
index b73279367087..8626437acf0c 100644
--- a/kernel/locking/rtmutex.c
+++ b/kernel/locking/rtmutex.c
@@ -1180,11 +1180,8 @@ rt_mutex_slowlock(struct rt_mutex *lock, int state,
set_current_state(state);
/* Setup the timer, when timeout != NULL */
- if (unlikely(timeout)) {
+ if (unlikely(timeout))
hrtimer_start_expires(&timeout->timer, HRTIMER_MODE_ABS);
- if (!hrtimer_active(&timeout->timer))
- timeout->task = NULL;
- }
ret = task_blocks_on_rt_mutex(lock, &waiter, current, chwalk);