OBJ_COLLAPSING
(OBJ_COLLAPSING | OBJ_DEAD)) == 0,
KASSERT((object->flags & (OBJ_COLLAPSING | OBJ_DEAD)) == 0,
vm_object_set_flag(object, OBJ_COLLAPSING);
vm_object_clear_flag(object, OBJ_COLLAPSING);
if ((object->flags & (OBJ_DEAD | OBJ_COLLAPSING)) != 0 ||
KASSERT((object->flags & OBJ_COLLAPSING) == 0,
while ((object->flags & OBJ_COLLAPSING) != 0) {
if ((backing_object->flags & (OBJ_DEAD | OBJ_COLLAPSING)) == 0)
KASSERT((object->flags & OBJ_COLLAPSING) == 0,