osd: Remove unneeded copy in ranged loop initializer

Signed-off-by: Adam C. Emerson <aemerson@redhat.com>

diff --git a/src/osd/PG.cc b/src/osd/PG.cc
index 3734c07699a4f144b72da353a0eae2f2f802ea28..236dee875961d94d84b9acd3edeb0002385926ff 100644 (file)
--- a/src/osd/PG.cc
+++ b/src/osd/PG.cc
@@ -3075,8 +3075,8 @@ void PG::scrub_compare_maps()
   set<hobject_t> master_set;
 
   // Construct master set
-  for (const auto map : maps) {
-    for (const auto i : map.second->objects) {
+  for (const auto& map : maps) {
+    for (const auto& i : map.second->objects) {
       master_set.insert(i.first);
     }
   }