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| author | Peter Zijlstra <a.p.zijlstra@chello.nl> | 2011-04-05 17:23:41 +0200 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2011-04-14 08:52:33 +0200 |
| commit | c6eb3dda25892f1f974f5420f63e6721aab02f6f (patch) | |
| tree | b9be3e193dcfeda3589832be10189085cde496c5 /kernel/mutex-debug.c | |
| parent | 3ca7a440da394808571dad32d33d3bc0389982e6 (diff) | |
| download | lwn-c6eb3dda25892f1f974f5420f63e6721aab02f6f.tar.gz lwn-c6eb3dda25892f1f974f5420f63e6721aab02f6f.zip | |
mutex: Use p->on_cpu for the adaptive spin
Since we now have p->on_cpu unconditionally available, use it to
re-implement mutex_spin_on_owner.
Requested-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Frank Rowand <frank.rowand@am.sony.com>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Nick Piggin <npiggin@kernel.dk>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/r/20110405152728.826338173@chello.nl
Diffstat (limited to 'kernel/mutex-debug.c')
| -rw-r--r-- | kernel/mutex-debug.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/kernel/mutex-debug.c b/kernel/mutex-debug.c index ec815a960b5d..73da83aff418 100644 --- a/kernel/mutex-debug.c +++ b/kernel/mutex-debug.c @@ -75,7 +75,7 @@ void debug_mutex_unlock(struct mutex *lock) return; DEBUG_LOCKS_WARN_ON(lock->magic != lock); - DEBUG_LOCKS_WARN_ON(lock->owner != current_thread_info()); + DEBUG_LOCKS_WARN_ON(lock->owner != current); DEBUG_LOCKS_WARN_ON(!lock->wait_list.prev && !lock->wait_list.next); mutex_clear_owner(lock); } |