+ if (lmv->lmv_master_mdt_index != lmu->lum_stripe_offset) {
+ CERROR("%s: "DFID" migrate mdt index mismatch %u != %u\n",
+ mdt_obd_name(info->mti_mdt), PFID(rr->rr_fid1),
+ lmv->lmv_master_mdt_index, lmu->lum_stripe_offset);
+ GOTO(unlock_obj, rc = -EINVAL);
+ }
+
+ if (lum_stripe_count > 1 &&
+ (lmv->lmv_hash_type & cpu_to_le32(LMV_HASH_TYPE_MASK)) !=
+ lmu->lum_hash_type) {
+ CERROR("%s: "DFID" migrate mdt hash mismatch %u != %u\n",
+ mdt_obd_name(info->mti_mdt), PFID(rr->rr_fid1),
+ lmv->lmv_hash_type, lmu->lum_hash_type);
+ GOTO(unlock_obj, rc = -EINVAL);
+ }
+
+ if (le32_to_cpu(lmu->lum_stripe_count) < 2 && !pobj) {
+ /*
+ * lock parent because dir will be shrunk to be 1 stripe, which
+ * should be converted to normal directory, but that will
+ * change dir fid and update namespace of parent.
+ */
+ lhp = &info->mti_lh[MDT_LH_PARENT];
+ mdt_lock_reg_init(lhp, LCK_PW);
+
+ /* get parent from PFID */
+ ma->ma_need |= MA_PFID;
+ ma->ma_valid = 0;
+ rc = mdt_attr_get_complex(info, obj, ma);
+ if (rc)
+ GOTO(unlock_obj, rc);
+
+ if (!(ma->ma_valid & MA_PFID))
+ GOTO(unlock_obj, rc = -ENOTSUPP);
+
+ pobj = mdt_object_find(env, mdt, &ma->ma_pfid);
+ if (IS_ERR(pobj)) {
+ rc = PTR_ERR(pobj);
+ pobj = NULL;
+ GOTO(unlock_obj, rc);
+ }
+
+ mdt_reint_striped_unlock(info, obj, lhc, einfo, 1);
+
+ if (mdt_object_remote(pobj)) {
+ rc = mdt_remote_object_lock(info, pobj, rr->rr_fid1,
+ &lhp->mlh_rreg_lh, LCK_EX,
+ MDS_INODELOCK_LOOKUP,
+ false);
+ if (rc != ELDLM_OK) {
+ mdt_object_put(env, pobj);
+ GOTO(put_obj, rc);
+ }
+ mdt_object_unlock(info, NULL, lhp, 1);
+ }
+
+ rc = mdt_reint_object_lock(info, pobj, lhp,
+ MDS_INODELOCK_UPDATE, true);
+ if (rc) {
+ mdt_object_put(env, pobj);
+ GOTO(put_obj, rc);
+ }
+
+ goto relock;
+ }
+
+ buf->lb_buf = rr->rr_eadata;
+ buf->lb_len = rr->rr_eadatalen;
+ rc = mo_xattr_set(env, mdt_object_child(obj), buf, XATTR_NAME_LMV, 0);
+ GOTO(unlock_obj, rc);
+
+unlock_obj:
+ mdt_reint_striped_unlock(info, obj, lhc, einfo, rc);
+ if (pobj)
+ mdt_object_unlock_put(info, pobj, lhp, rc);
+put_obj:
+ mdt_object_put(env, obj);
+
+ return rc;