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authorIngo Molnar <mingo@elte.hu>2006-07-03 07:24:55 (GMT)
committerLinus Torvalds <torvalds@g5.osdl.org>2006-07-03 22:27:04 (GMT)
commitef5d4707b9065c0cf8a69fa3716893f3b75201ba (patch)
tree9ec92f31356bf404486c1b26df9fa40bd784f983 /kernel/mutex-debug.c
parent8a25d5debff2daee280e83e09d8c25d67c26a972 (diff)
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[PATCH] lockdep: prove mutex locking correctness
Use the lock validator framework to prove mutex locking correctness. Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Arjan van de Ven <arjan@linux.intel.com> 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.c6
1 files changed, 5 insertions, 1 deletions
diff --git a/kernel/mutex-debug.c b/kernel/mutex-debug.c
index 5569766..e3203c6 100644
--- a/kernel/mutex-debug.c
+++ b/kernel/mutex-debug.c
@@ -83,12 +83,16 @@ void debug_mutex_unlock(struct mutex *lock)
DEBUG_LOCKS_WARN_ON(lock->owner != current_thread_info());
}
-void debug_mutex_init(struct mutex *lock, const char *name)
+void debug_mutex_init(struct mutex *lock, const char *name,
+ struct lock_class_key *key)
{
+#ifdef CONFIG_DEBUG_LOCK_ALLOC
/*
* Make sure we are not reinitializing a held lock:
*/
debug_check_no_locks_freed((void *)lock, sizeof(*lock));
+ lockdep_init_map(&lock->dep_map, name, key);
+#endif
lock->owner = NULL;
lock->magic = lock;
}