From: Xinying Song <songxinying@cloudin.cn>
Date: Thu, 27 Jul 2017 07:52:54 +0000 (+0800)
Subject: common: use std::move() for better performance
X-Git-Tag: v12.1.2~16^2
X-Git-Url: http://git-server-git.apps.pok.os.sepia.ceph.com/?a=commitdiff_plain;h=e15b2b9cc8cb2db6f4033bbc06328201380821a0;p=ceph.git

common: use std::move() for better performance

use std::move() to avoid extra copy constructions in src/common/OutputDataSocket.cc.

Signed-off-by: Xinying Song <songxinying@cloudin.cn>
---

diff --git a/src/common/OutputDataSocket.cc b/src/common/OutputDataSocket.cc
index f61c9c4453a2..bbee667f329f 100644
--- a/src/common/OutputDataSocket.cc
+++ b/src/common/OutputDataSocket.cc
@@ -298,8 +298,7 @@ void OutputDataSocket::handle_connection(int fd)
 int OutputDataSocket::dump_data(int fd)
 {
   m_lock.Lock(); 
-  list<bufferlist> l;
-  l = data;
+  list<bufferlist> l = std::move(data);
   data.clear();
   data_size = 0;
   m_lock.Unlock();