| From b204c1ae83666bc29aceb615202cb8000e08f0d7 Mon Sep 17 00:00:00 2001 |
| From: Steven Rostedt <srostedt@redhat.com> |
| Date: Fri, 3 Jul 2009 08:44:20 -0500 |
| Subject: [PATCH] rtmutex: remove double xchg |
| |
| commit 4829d08644d66712666d0614d3c670304534f67e in tip. |
| |
| No reason to update current if we are running. We'll do that when we exit |
| the loop. |
| |
| Signed-off-by: Steven Rostedt <srostedt@redhat.com> |
| Signed-off-by: Ingo Molnar <mingo@elte.hu> |
| Signed-off-by: Thomas Gleixner <tglx@linutronix.de> |
| |
| diff --git a/kernel/rtmutex.c b/kernel/rtmutex.c |
| index 543e43c..1f12a75 100644 |
| --- a/kernel/rtmutex.c |
| +++ b/kernel/rtmutex.c |
| @@ -736,8 +736,6 @@ rt_spin_lock_slowlock(struct rt_mutex *lock) |
| update_current(TASK_UNINTERRUPTIBLE, &saved_state); |
| if (waiter.task) |
| schedule_rt_mutex(lock); |
| - else |
| - update_current(TASK_RUNNING_MUTEX, &saved_state); |
| |
| raw_spin_lock_irqsave(&lock->wait_lock, flags); |
| current->lock_depth = saved_lock_depth; |
| -- |
| 1.7.1.1 |
| |
