Messages in this thread Patch in this message | | | From | Gregory Haskins <> | Subject | [PATCH 5/5] remove the extra call to try_to_take_lock | Date | Tue, 20 May 2008 10:49:36 -0400 |
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From: Peter W. Morreale <pmorreale@novell.com>
Remove the redundant attempt to get the lock. While it is true that the exit path with this patch adds an un-necessary xchg (in the event the lock is granted without further traversal in the loop) experimentation shows that we almost never encounter this situation.
Signed-off-by: Peter W. Morreale <pmorreale@novell.com> Signed-off-by: Gregory Haskins <ghaskins@novell.com> ---
kernel/rtmutex.c | 6 ------ 1 files changed, 0 insertions(+), 6 deletions(-)
diff --git a/kernel/rtmutex.c b/kernel/rtmutex.c index ec1f7d4..1da7813 100644 --- a/kernel/rtmutex.c +++ b/kernel/rtmutex.c @@ -785,12 +785,6 @@ rt_spin_lock_slowlock(struct rt_mutex *lock) spin_lock_irqsave(&lock->wait_lock, flags); init_lists(lock); - /* Try to acquire the lock again: */ - if (do_try_to_take_rt_mutex(lock, STEAL_LATERAL)) { - spin_unlock_irqrestore(&lock->wait_lock, flags); - return; - } - BUG_ON(rt_mutex_owner(lock) == current); /*
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