From: Xiubo Li <xiubli@redhat.com>
Date: Wed, 17 May 2023 13:06:16 +0000 (+0800)
Subject: mds: do not send split_realms for CEPH_SNAP_OP_UPDATE msg
X-Git-Tag: v17.2.7~90^2
X-Git-Url: http://git-server-git.apps.pok.os.sepia.ceph.com/?a=commitdiff_plain;h=4f42a58835796e61034b8dfe2ab4ad6674e9af6c;p=ceph.git

mds: do not send split_realms for CEPH_SNAP_OP_UPDATE msg

The clients won't care about the split_realms and the kclient will
treat this as a corrupted snaptrace.

Fixes commit 93e7267757508520dfc22cff1ab20558bd4a44d4 ("mds: send snap
	related messages centrally during mds recovery")
Fixes: https://tracker.ceph.com/issues/61217
Signed-off-by: Xiubo Li <xiubli@redhat.com>
(cherry picked from commit 3be9c9796246eab96f672218d9e45f118f6cdf12)

Conflicts:
 - Misses a dependent commit 7a4c509f7289ff4
---

diff --git a/src/mds/MDCache.cc b/src/mds/MDCache.cc
index eba2265242b3..e76a96b2a53a 100644
--- a/src/mds/MDCache.cc
+++ b/src/mds/MDCache.cc
@@ -6034,8 +6034,6 @@ void MDCache::finish_snaprealm_reconnect(client_t client, SnapRealm *realm, snap
 	     << realm->get_newest_seq() << " on " << *realm << dendl;
     auto snap = make_message<MClientSnap>(CEPH_SNAP_OP_UPDATE);
     snap->bl = realm->get_snap_trace();
-    for (const auto& child : realm->open_children)
-      snap->split_realms.push_back(child->inode->ino());
     updates.emplace(std::piecewise_construct, std::forward_as_tuple(client), std::forward_as_tuple(snap));
   } else {
     dout(10) << "finish_snaprealm_reconnect client." << client << " up to date"