From: Jason Dillaman <dillaman@redhat.com>
Date: Mon, 18 Jan 2016 22:53:00 +0000 (-0500)
Subject: librbd: missing lock on state transition
X-Git-Tag: v10.0.3~19^2^2
X-Git-Url: http://git-server-git.apps.pok.os.sepia.ceph.com/?a=commitdiff_plain;h=1aa674c27bbd8be9019a9e6d16cf1794702df376;p=ceph.git

librbd: missing lock on state transition

Signed-off-by: Jason Dillaman <dillaman@redhat.com>
---

diff --git a/src/librbd/ExclusiveLock.cc b/src/librbd/ExclusiveLock.cc
index fd362ef4a98c..cef72cceca79 100644
--- a/src/librbd/ExclusiveLock.cc
+++ b/src/librbd/ExclusiveLock.cc
@@ -339,8 +339,8 @@ void ExclusiveLock<I>::send_acquire_lock() {
 
 template <typename I>
 void ExclusiveLock<I>::handle_acquiring_lock(int r) {
-  CephContext *cct = m_image_ctx.cct;
-  ldout(cct, 10) << this << " " << __func__ << dendl;
+  Mutex::Locker locker(m_lock);
+  ldout(m_image_ctx.cct, 10) << this << " " << __func__ << dendl;
 
   assert(r == 0);
   assert(m_state == STATE_ACQUIRING);