diff --git a/include/linux/lockdep.h b/include/linux/lockdep.h
index 12aabfc..a6d5e5e 100644
--- a/include/linux/lockdep.h
+++ b/include/linux/lockdep.h
@@ -296,6 +296,10 @@
 extern void lock_release(struct lockdep_map *lock, int nested,
 			 unsigned long ip);
 
+#define lockdep_is_held(lock)	lock_is_held(&(lock)->dep_map)
+
+extern int lock_is_held(struct lockdep_map *lock);
+
 extern void lock_set_class(struct lockdep_map *lock, const char *name,
 			   struct lock_class_key *key, unsigned int subclass,
 			   unsigned long ip);
@@ -314,6 +318,8 @@
 
 #define lockdep_depth(tsk)	(debug_locks ? (tsk)->lockdep_depth : 0)
 
+#define lockdep_assert_held(l)	WARN_ON(debug_locks && !lockdep_is_held(l))
+
 #else /* !LOCKDEP */
 
 static inline void lockdep_off(void)
@@ -358,6 +364,8 @@
 
 #define lockdep_depth(tsk)	(0)
 
+#define lockdep_assert_held(l)			do { } while (0)
+
 #endif /* !LOCKDEP */
 
 #ifdef CONFIG_LOCK_STAT