Merge pull request #11382 from yuyuyu101/wip-fix-shadow

osd/PGBackend: fix collection_list shadow return value

Reviewed-by: Kefu Chai <kchai@redhat.com>
tchaikov

src/osd/PGBackend.cc

@@ -140,16 +140,18 @@ int PGBackend::objects_list_partial(
 
   while (!_next.is_max() && ls->size() < (unsigned)min) {
     vector<ghobject_t> objects;
-    int r = store->collection_list(
+    r = store->collection_list(
       ch,
       _next,
       ghobject_t::get_max(),
       parent->sort_bitwise(),
       max - ls->size(),
       &objects,
       &_next);
-    if (r != 0)
+    if (r != 0) {
+      derr << __func__ << " list collection " << ch << " got: " << cpp_strerror(r) << dendl;
       break;
+    }
     for (vector<ghobject_t>::iterator i = objects.begin();
 	 i != objects.end();
 	 ++i) {