From: Yan, Zheng <zyan@redhat.com>
Date: Thu, 25 Jan 2018 02:25:25 +0000 (+0800)
Subject: osdc/ObjectCacher: fix off-by-one error in bh_write_commit()
X-Git-Tag: v12.2.3~12^2~1
X-Git-Url: http://git-server-git.apps.pok.os.sepia.ceph.com/?a=commitdiff_plain;h=43b37b83df897b57c10cea2ae307897f1f7fb96c;p=ceph.git

osdc/ObjectCacher: fix off-by-one error in bh_write_commit()

Fixes: https://tracker.ceph.com/issues/22741
Signed-off-by: "Yan, Zheng" <zyan@redhat.com>
(cherry picked from commit cc4c6dcc2ffdc482f1915db569949e674691c372)
---

diff --git a/src/osdc/ObjectCacher.cc b/src/osdc/ObjectCacher.cc
index 4afd1de9b6fc..7139318b9f2e 100644
--- a/src/osdc/ObjectCacher.cc
+++ b/src/osdc/ObjectCacher.cc
@@ -1149,7 +1149,7 @@ void ObjectCacher::bh_write_commit(int64_t poolid, sobject_t oid,
 	 ++p) {
       BufferHead *bh = p->second;
 
-      if (bh->start() > start+(loff_t)length)
+      if (bh->start() >= start+(loff_t)length)
 	break;
 
       if (bh->start() < start &&