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[PATCH] lockdep: prove mutex locking correctness

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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>
This commit is contained in:
Ingo Molnar 2006-07-03 00:24:55 -07:00 • committed by Linus Torvalds
parent 8a25d5debf
commit ef5d4707b9
5 changed files with 63 additions and 12 deletions
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6
kernel/mutex-debug.c
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@ -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;
}