From: Sage Weil <sage@redhat.com>
Date: Thu, 17 Mar 2016 21:41:56 +0000 (-0400)
Subject: os/bluestore: only use tail if tail_offset matches
X-Git-Tag: v10.1.1~28^2~27
X-Git-Url: http://git-server-git.apps.pok.os.sepia.ceph.com/?a=commitdiff_plain;h=5a2b36f1e2cccb1d452a20659114ccdbf77b1536;p=ceph.git

os/bluestore: only use tail if tail_offset matches

Signed-off-by: Sage Weil <sage@redhat.com>
---

diff --git a/src/os/bluestore/BlueStore.cc b/src/os/bluestore/BlueStore.cc
index ca1f93d35201..8af1c6a75471 100644
--- a/src/os/bluestore/BlueStore.cc
+++ b/src/os/bluestore/BlueStore.cc
@@ -5466,6 +5466,7 @@ int BlueStore::_do_write(
     if (offset >= bp->first &&
 	offset > tail_start &&
 	offset + length >= o->onode.size &&
+	o->tail_offset == tail_start &&
 	o->tail_bl.length() &&
 	(offset / block_size == (o->onode.size - 1) / block_size)) {
       dout(20) << __func__ << " using cached tail" << dendl;