diff options
| author | Ingo Molnar <mingo@elte.hu> | 2006-12-06 20:39:32 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@woody.osdl.org> | 2006-12-07 08:39:43 -0800 |
| commit | 2ee91f197c0bc654b24eed5831fd12aa0d566a7d (patch) | |
| tree | 85f9013d1cf17d6a947bbad723ce0cb5427a3dac /kernel/mutex-debug.c | |
| parent | 50cc670aebf4fc64afaf533fb9fa1c8570f09d74 (diff) | |
| download | lwn-2ee91f197c0bc654b24eed5831fd12aa0d566a7d.tar.gz lwn-2ee91f197c0bc654b24eed5831fd12aa0d566a7d.zip | |
[PATCH] lockdep: show more details about self-test failures
Make the locking self-test failures (of 'FAILURE' type) easier to debug by
printing more information.
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'kernel/mutex-debug.c')
| -rw-r--r-- | kernel/mutex-debug.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/kernel/mutex-debug.c b/kernel/mutex-debug.c index 18651641a7b5..841539d72c55 100644 --- a/kernel/mutex-debug.c +++ b/kernel/mutex-debug.c @@ -77,6 +77,9 @@ void mutex_remove_waiter(struct mutex *lock, struct mutex_waiter *waiter, void debug_mutex_unlock(struct mutex *lock) { + if (unlikely(!debug_locks)) + return; + DEBUG_LOCKS_WARN_ON(lock->owner != current_thread_info()); DEBUG_LOCKS_WARN_ON(lock->magic != lock); DEBUG_LOCKS_WARN_ON(!lock->wait_list.prev && !lock->wait_list.next); |