+ /*
+ * Note: do not enqueue rename lock for replay request, because
+ * if other MDT holds rename lock, but being blocked to wait for
+ * this MDT to finish its recovery, and the failover MDT can not
+ * get rename lock, which will cause deadlock.
+ */
+ if (!req_is_replay(req)) {
+ /*
+ * Normally rename RPC is handled on the MDT with the target
+ * directory (if target exists, it's on the MDT with the
+ * target), if the source directory is remote, it's a hint that
+ * source is remote too (this may not be true, but it won't
+ * cause any issue), return -EXDEV early to avoid taking
+ * rename_lock.
+ */
+ if (!mdt->mdt_enable_remote_rename &&
+ mdt_object_remote(msrcdir))
+ GOTO(out_put_tgtdir, rc = -EXDEV);
+
+ rc = mdt_rename_lock(info, &rename_lh);
+ if (rc != 0) {
+ CERROR("%s: can't lock FS for rename: rc = %d\n",
+ mdt_obd_name(mdt), rc);
+ GOTO(out_put_tgtdir, rc);
+ }
+ }
+