acl: Avoid extra open() on a directory for default acl.

diff --git a/src/plugins/acl/acl-backend-vfile.c b/src/plugins/acl/acl-backend-vfile.c
index 9c5b2cd56041a37431dda66b2bf4a2d1e79bb22f..447ec6b92eb196a8a9f80a57bc701563c1d36bf0 100644 (file)
--- a/src/plugins/acl/acl-backend-vfile.c
+++ b/src/plugins/acl/acl-backend-vfile.c
@@ -173,8 +173,11 @@ acl_backend_vfile_object_init(struct acl_backend *_backend,
 
                vname = t_str_new(128);
                mail_namespace_get_vname(ns, vname, name);
-               aclobj->global_path = i_strconcat(backend->global_dir, "/",
-                                                 str_c(vname), NULL);
+               if (str_len(vname) > 0) {
+                       aclobj->global_path =
+                               i_strconcat(backend->global_dir, "/",
+                                           str_c(vname), NULL);
+               }
        } T_END;
 
        dir = acl_backend_vfile_get_local_dir(_backend, name);