From 27761a209dcd52c73adef4e959e1fcad91a4430a Mon Sep 17 00:00:00 2001
From: Jason Dillaman <dillaman@redhat.com>
Date: Tue, 7 Apr 2020 12:13:46 -0400
Subject: [PATCH] rbd-mirror: fixed race condition with snapshot sync and
 shutdown

Signed-off-by: Jason Dillaman <dillaman@redhat.com>
(cherry picked from commit 8a18a7fc71944c55e7a5fa47e55572546b4088db)
---
 src/tools/rbd_mirror/image_replayer/snapshot/Replayer.cc | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/src/tools/rbd_mirror/image_replayer/snapshot/Replayer.cc b/src/tools/rbd_mirror/image_replayer/snapshot/Replayer.cc
index 9844f27dd327b..52ab795aaa86e 100644
--- a/src/tools/rbd_mirror/image_replayer/snapshot/Replayer.cc
+++ b/src/tools/rbd_mirror/image_replayer/snapshot/Replayer.cc
@@ -784,6 +784,10 @@ void Replayer<I>::request_sync() {
   dout(10) << dendl;
 
   std::unique_lock locker{m_lock};
+  if (is_replay_interrupted(&locker)) {
+    return;
+  }
+
   auto ctx = create_async_context_callback(
     m_threads->work_queue, create_context_callback<
       Replayer<I>, &Replayer<I>::handle_request_sync>(this));
-- 
2.39.5