cur_trans->start_time = get_seconds();
        cur_trans->dirty_bg_run = 0;
 
+       memset(&cur_trans->delayed_refs, 0, sizeof(cur_trans->delayed_refs));
+
        cur_trans->delayed_refs.href_root = RB_ROOT;
        cur_trans->delayed_refs.dirty_extent_root = RB_ROOT;
        atomic_set(&cur_trans->delayed_refs.num_entries, 0);
-       cur_trans->delayed_refs.num_heads_ready = 0;
-       cur_trans->delayed_refs.pending_csums = 0;
-       cur_trans->delayed_refs.num_heads = 0;
-       cur_trans->delayed_refs.flushing = 0;
-       cur_trans->delayed_refs.run_delayed_start = 0;
-       cur_trans->delayed_refs.qgroup_to_skip = 0;
 
        /*
         * although the tree mod log is per file system and not per transaction,