From 1dd597b1587b57a4e72edc258639db356818b8fa Mon Sep 17 00:00:00 2001
From: songweibin <song.weibin@zte.com.cn>
Date: Mon, 28 Aug 2017 16:50:58 +0800
Subject: [PATCH] librbd: cannot set self as remote peer

Signed-off-by: songweibin <song.weibin@zte.com.cn>
---
 src/librbd/api/Mirror.cc | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/src/librbd/api/Mirror.cc b/src/librbd/api/Mirror.cc
index 8661e7a73a3..5b63e0f83c0 100644
--- a/src/librbd/api/Mirror.cc
+++ b/src/librbd/api/Mirror.cc
@@ -765,6 +765,11 @@ int Mirror<I>::peer_set_cluster(librados::IoCtx& io_ctx,
   ldout(cct, 20) << "uuid=" << uuid << ", "
                  << "cluster=" << cluster_name << dendl;
 
+  if (cct->_conf->cluster == cluster_name) {
+    lderr(cct) << "cannot set self as remote peer" << dendl;
+    return -EINVAL;
+  }
+
   int r = cls_client::mirror_peer_set_cluster(&io_ctx, uuid, cluster_name);
   if (r < 0) {
     lderr(cct) << "failed to update cluster '" << uuid << "': "
-- 
2.47.3