Symbol: LK_EXCLUPGRADE
sys/kern/kern_lock.c
618
if ((flags & LK_TYPE_MASK) == LK_EXCLUPGRADE)
sys/sys/lock.h
274
case LK_EXCLUPGRADE:
sys/vm/vm_map.h
511
error = lockmgr(&map->lock, LK_EXCLUPGRADE);