Symbol: WITNESS_DOWNGRADE
sys/kern/kern_lock.c
1362
WITNESS_DOWNGRADE(&lk->lock_object, 0, file, line);
sys/kern/kern_rwlock.c
1397
WITNESS_DOWNGRADE(&rw->lock_object, 0, file, line);
sys/kern/kern_sx.c
490
WITNESS_DOWNGRADE(&sx->lock_object, 0, file, line);