From: Tianshan Qu <qutianshan@gmail.com>
Date: Thu, 28 Jan 2016 06:38:09 +0000 (+0800)
Subject: tools/rados/rados.cc: fix race condition in load-gen complete callback
X-Git-Tag: v10.0.4~104^2
X-Git-Url: http://git-server-git.apps.pok.os.sepia.ceph.com/?a=commitdiff_plain;h=refs%2Fpull%2F7392%2Fhead;p=ceph.git

tools/rados/rados.cc: fix race condition in load-gen complete callback

Fixes: #14536

Signed-off-by: Tianshan Qu <tianshan@xsky.com>
---

diff --git a/src/tools/rados/rados.cc b/src/tools/rados/rados.cc
index 36f620bc209d..a1b873842efc 100644
--- a/src/tools/rados/rados.cc
+++ b/src/tools/rados/rados.cc
@@ -598,10 +598,10 @@ public:
   void cleanup();
 
   void io_cb(completion_t c, LoadGenOp *op) {
-    total_completed += op->len;
-
     Mutex::Locker l(lock);
 
+    total_completed += op->len;
+
     double rate = (double)cur_completed_rate() / (1024 * 1024);
     std::streamsize original_precision = cout.precision();
     cout.precision(3);