rgw: optimize out ctor-copy in RGWListBuckets_ObjStore_SWIFT.

Signed-off-by: Radoslaw Zarzynski <rzarzynski@mirantis.com>

diff --git a/src/rgw/rgw_rest_swift.cc b/src/rgw/rgw_rest_swift.cc
index 2d94e481b20baffe1aa587307b5dd32fc8d42a59..40cfda218a8d7daf867e78f8d34185726e439996 100644 (file)
--- a/src/rgw/rgw_rest_swift.cc
+++ b/src/rgw/rgw_rest_swift.cc
@@ -177,7 +177,7 @@ 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) {