diff mbox series

[v2,3/3] rtmutex: remove unnecessary adjust prio

Message ID 1492783975-13633-3-git-send-email-alex.shi@linaro.org
State Superseded
Headers show
Series [v2,1/3] rtmutex: update rt-mutex-design | expand

Commit Message

Alex Shi April 21, 2017, 2:12 p.m. UTC 
We don't need to adjust prio before new pi_waiter adding. The prio
only need update after pi_waiter change or task priority change.

Signed-off-by: Alex Shi <alex.shi@linaro.org>

Cc: Steven Rostedt <rostedt@goodmis.org>
Cc: Sebastian Siewior <bigeasy@linutronix.de>
To: linux-kernel@vger.kernel.org
To: Ingo Molnar <mingo@redhat.com>
To: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
---
 kernel/locking/rtmutex.c | 1 -
 1 file changed, 1 deletion(-)

-- 
1.9.1
diff mbox series

Patch

diff --git a/kernel/locking/rtmutex.c b/kernel/locking/rtmutex.c
index b955094..b659ba0 100644
--- a/kernel/locking/rtmutex.c
+++ b/kernel/locking/rtmutex.c
@@ -963,7 +963,6 @@  static int task_blocks_on_rt_mutex(struct rt_mutex *lock,
 		return -EDEADLK;
 
 	raw_spin_lock(&task->pi_lock);
-	rt_mutex_adjust_prio(task);
 	waiter->task = task;
 	waiter->lock = lock;
 	waiter->prio = task->prio;