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 <[email protected]> Acked-by: Peter Zijlstra <[email protected]> Cc: Preeti U Murthy <[email protected]> Cc: Viresh Kumar <[email protected]> Cc: Marcelo Tosatti <[email protected]> Cc: Frederic Weisbecker <[email protected]> Link: http://lkml.kernel.org/r/[email protected] Signed-off-by: Thomas Gleixner <[email protected]>
jbg · Apr 22, 2015 · ccdd92c · ccdd92c
1 parent 2e4b0d3
commit ccdd92c
Showing 1 changed file with 1 addition and 4 deletions.
diff --git 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);