From 83406c102706620af3a3c6c733a32e0e3bff004b Mon Sep 17 00:00:00 2001
From: Bingyin Zhang <zhangbingyin@cloudin.cn>
Date: Sat, 6 Jan 2018 16:06:46 +0800
Subject: [PATCH] rgw: drop unused vector elements

Signed-off-by: Bingyin Zhang <zhangbingyin@cloudin.cn>
---
 src/rgw/rgw_rados.cc | 9 ++++++---
 1 file changed, 6 insertions(+), 3 deletions(-)

diff --git a/src/rgw/rgw_rados.cc b/src/rgw/rgw_rados.cc
index f55b9a84f68c..1025328b3878 100644
--- a/src/rgw/rgw_rados.cc
+++ b/src/rgw/rgw_rados.cc
@@ -12831,9 +12831,12 @@ int RGWRados::cls_bucket_list(RGWBucketInfo& bucket_info, int shard_id, rgw_obj_
     return r;
 
   // Create a list of iterators that are used to iterate each shard
-  vector<map<string, struct rgw_bucket_dir_entry>::iterator> vcurrents(list_results.size());
-  vector<map<string, struct rgw_bucket_dir_entry>::iterator> vends(list_results.size());
-  vector<string> vnames(list_results.size());
+  vector<map<string, struct rgw_bucket_dir_entry>::iterator> vcurrents;
+  vector<map<string, struct rgw_bucket_dir_entry>::iterator> vends;
+  vector<string> vnames;
+  vcurrents.reserve(list_results.size());
+  vends.reserve(list_results.size());
+  vnames.reserve(list_results.size());
   map<int, struct rgw_cls_list_ret>::iterator iter = list_results.begin();
   *is_truncated = false;
   for (; iter != list_results.end(); ++iter) {
-- 
2.47.3