From: Kotresh HR <khiremat@redhat.com>
Date: Tue, 25 Feb 2025 12:31:34 +0000 (+0530)
Subject: multi-mds/unlink: Handle rollback of referent_inodes list
X-Git-Tag: v20.3.0~377^2~20
X-Git-Url: http://git-server-git.apps.pok.os.sepia.ceph.com/?a=commitdiff_plain;h=e6c6f52e548f50a497f5177ea8af14f528c796f3;p=ceph.git

multi-mds/unlink: Handle rollback of referent_inodes list

The referent_inodes list needs to be rolled back if the
unlink operation involving multi-mds fails due to mds
going down. This patch takes care of the same.

Fixes: https://tracker.ceph.com/issues/54205
Signed-off-by: Kotresh HR <khiremat@redhat.com>
---

diff --git a/src/mds/Server.cc b/src/mds/Server.cc
index 5307cbfef390..0901f7cff2d6 100644
--- a/src/mds/Server.cc
+++ b/src/mds/Server.cc
@@ -8355,6 +8355,11 @@ void Server::do_link_rollback(bufferlist &rbl, mds_rank_t leader, const MDReques
     }
   } else {
     pi.inode->nlink++;
+    if (rollback.referent_ino) {
+      pi.inode->add_referent_ino(rollback.referent_ino);
+      dout(10) << __func__ << " referent_inodes " << std::hex << pi.inode->get_referent_inodes()
+               << " referent ino added " << rollback.referent_ino << dendl;
+    }
   }
 
   map<client_t,ref_t<MClientSnap>> splits;