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lockdep: Fix lockdep_set_notrack_class() for CONFIG_LOCK_STAT

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We won't find a contended lock if it's not being tracked.

Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
This commit is contained in:
Kent Overstreet 2024-07-30 21:14:08 -04:00
parent e61dd67860
commit ff9bf4b341
1 changed files with 6 additions and 0 deletions
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6
kernel/locking/lockdep.c
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@ -5936,6 +5936,9 @@ __lock_contended(struct lockdep_map *lock, unsigned long ip)
if (DEBUG_LOCKS_WARN_ON(!depth))
return;
if (unlikely(lock->key == &__lockdep_no_track__))
return;
hlock = find_held_lock(curr, lock, depth, &i);
if (!hlock) {
print_lock_contention_bug(curr, lock, ip);
@ -5978,6 +5981,9 @@ __lock_acquired(struct lockdep_map *lock, unsigned long ip)
if (DEBUG_LOCKS_WARN_ON(!depth))
return;
if (unlikely(lock->key == &__lockdep_no_track__))
return;
hlock = find_held_lock(curr, lock, depth, &i);
if (!hlock) {
print_lock_contention_bug(curr, lock, _RET_IP_);