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

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Cc: Waiman Long <longman@redhat.com>
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
This commit is contained in:
Kent Overstreet 2024-07-18 17:17:10 -04:00
parent 6f719cbe0c
commit a97b43fac5
1 changed files with 15 additions and 0 deletions
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15
include/linux/lockdep.h
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@ -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)