VDEV_TOP_ZAP_INDIRECT_OBSOLETE_SM
VDEV_TOP_ZAP_INDIRECT_OBSOLETE_SM, tx));
VDEV_TOP_ZAP_INDIRECT_OBSOLETE_SM,
VDEV_TOP_ZAP_INDIRECT_OBSOLETE_SM, sizeof (sm_obj), 1, &sm_obj);
VDEV_TOP_ZAP_INDIRECT_OBSOLETE_SM, tx));