WRLOCK_NODE
err = lookup_and_lock_node(WRLOCK_NODE, nodeh, &nodep);
err = lookup_and_lock_propnode(WRLOCK_NODE, proph, &nodep, &propp);
err = lookup_and_lock_tablenode(WRLOCK_NODE, tblh, &nodep, &tbl_obj);
(void) lock_obj(WRLOCK_NODE, nodep);
err = lookup_and_lock_propnode(WRLOCK_NODE, proph, &nodep, &propp);
err = lookup_and_lock_node(WRLOCK_NODE, nodeh, &nodep); /* lock node */
else if (rw == WRLOCK_NODE)