DS_FIELD_RESUME_FROMGUID
DS_FIELD_RESUME_FROMGUID, tx);
VERIFY0(zap_add(mos, dsobj, DS_FIELD_RESUME_FROMGUID,
DS_FIELD_RESUME_FROMGUID, sizeof (val), 1, &val);
DS_FIELD_RESUME_FROMGUID, sizeof (val), 1, &val) == 0) {