From: Yan, Zheng <zyan@redhat.com>
Date: Tue, 10 Jan 2017 03:16:47 +0000 (+0800)
Subject: mds: finish clientreplay requests before requesting active state
X-Git-Tag: v11.2.1~202^2
X-Git-Url: http://git-server-git.apps.pok.os.sepia.ceph.com/?a=commitdiff_plain;h=29c8c3fb861a7153a13e3f56aaa7772c9116c751;p=ceph.git

mds: finish clientreplay requests before requesting active state

All clientreplay requests' finish contexts should be executed
before MDCache::export_remaining_imported_caps(). Otherwise
MDCache::try_reconnect_cap() may fail to reconnect client caps.

Fixes: http://tracker.ceph.com/issues/18461
Signed-off-by: Yan, Zheng <zyan@redhat.com>
(cherry picked from commit 80dae314ee90e79d60e2cfee301e43a435c10801)
---

diff --git a/src/mds/MDSRank.cc b/src/mds/MDSRank.cc
index 7a51ed02ad0a4..8155b235b83e3 100644
--- a/src/mds/MDSRank.cc
+++ b/src/mds/MDSRank.cc
@@ -1253,7 +1253,7 @@ void MDSRank::clientreplay_start()
 bool MDSRank::queue_one_replay()
 {
   if (replay_queue.empty()) {
-    clientreplay_done();
+    mdlog->wait_for_safe(new C_MDS_VoidFn(this, &MDSRank::clientreplay_done));
     return false;
   }
   queue_waiter(replay_queue.front());