Commit a97b43fa authored by Kent Overstreet's avatar Kent Overstreet
Browse files

lockdep: Add comments for lockdep_set_no{validate,track}_class() 



Cc: Waiman Long <longman@redhat.com>
Signed-off-by: default avatarKent Overstreet <kent.overstreet@linux.dev>
parent 6f719cbe

include/linux/lockdep.h

+15 −0
Original line number Diff line number Diff line
@@ -178,9 +178,24 @@ static inline void lockdep_init_map(struct lockdep_map *lock, const char *name, 
			      (lock)->dep_map.wait_type_outer,		\

			      (lock)->dep_map.lock_type)



/**

 * lockdep_set_novalidate_class: disable checking of lock ordering on a given

 * lock

 * @lock: Lock to mark

 *

 * Lockdep will still record that this lock has been taken, and print held

 * instances when dumping locks

 */

#define lockdep_set_novalidate_class(lock) \

	lockdep_set_class_and_name(lock, &__lockdep_no_validate__, #lock)



/**

 * lockdep_set_notrack_class: disable lockdep tracking of a given lock entirely

 * @lock: Lock to mark

 *

 * Bigger hammer than lockdep_set_novalidate_class: so far just for bcachefs,

 * which takes more locks than lockdep is able to track (48).

 */

#define lockdep_set_notrack_class(lock) \

	lockdep_set_class_and_name(lock, &__lockdep_no_track__, #lock)