rgw: optimize out ctor-copy in RGWListBuckets_ObjStore_SWIFT.

This commit has been backported to Jewel as a dependency for
0e0a14a70f688e29c1993b723d64ec99a55f3677.

Signed-off-by: Radoslaw Zarzynski <rzarzynski@mirantis.com>
(cherry picked from commit d68e625b010a4e22afe44439017338e87a11b3b7)

diff --git a/src/rgw/rgw_rest_swift.cc b/src/rgw/rgw_rest_swift.cc
index a6d362363f1acde39229a009022517cfe8acc6ee..e824447d9981aec7050beeb10b41042ae743b9e0 100644 (file)
--- a/src/rgw/rgw_rest_swift.cc
+++ b/src/rgw/rgw_rest_swift.cc
@@ -151,7 +151,7 @@ void RGWListBuckets_ObjStore_SWIFT::send_response_data(RGWUserBuckets& buckets)
     return;
 
   for (iter = m.begin(); iter != m.end(); ++iter) {
-    RGWBucketEnt obj = iter->second;
+    const RGWBucketEnt& obj = iter->second;
     s->formatter->open_object_section("container");
     s->formatter->dump_string("name", obj.bucket.name);
     if (need_stats) {