From: Jason Dillaman <dillaman@redhat.com>
Date: Thu, 29 Sep 2016 12:19:52 +0000 (-0400)
Subject: journal: use reverse iterator search to find flush record
X-Git-Tag: v10.2.4~61^2~7
X-Git-Url: http://git-server-git.apps.pok.os.sepia.ceph.com/?a=commitdiff_plain;h=9f3614377043efb56c606905a4b4f5c86b3e074e;p=ceph.git

journal: use reverse iterator search to find flush record

Signed-off-by: Jason Dillaman <dillaman@redhat.com>
(cherry picked from commit a96065815558e50361af4c701c23e5248962dfe0)
---

diff --git a/src/journal/ObjectRecorder.cc b/src/journal/ObjectRecorder.cc
index 1079b0a8db787..f329c1fbed709 100644
--- a/src/journal/ObjectRecorder.cc
+++ b/src/journal/ObjectRecorder.cc
@@ -132,12 +132,16 @@ void ObjectRecorder::flush(const FutureImplPtr &future) {
     return;
   }
 
-  AppendBuffers::iterator it;
-  for (it = m_append_buffers.begin(); it != m_append_buffers.end(); ++it) {
-    if (it->first == future) {
+  AppendBuffers::reverse_iterator r_it;
+  for (r_it = m_append_buffers.rbegin(); r_it != m_append_buffers.rend();
+       ++r_it) {
+    if (r_it->first == future) {
       break;
     }
   }
+  assert(r_it != m_append_buffers.rend());
+
+  auto it = (++r_it).base();
   assert(it != m_append_buffers.end());
   ++it;