    OVS_REQUIRES(ct->ct_lock)
{
    conn_clean_cmn(ct, conn);
    if (conn->conn_type == CT_CONN_TYPE_DEFAULT) {
        ovs_list_remove(&conn->exp_node);
        conn->cleaned = true;
        atomic_count_dec(&ct->n_conn);
    }
    ovsrcu_postpone(delete_conn_one, conn);
}
    OVS_REQUIRES(ct->ct_lock)
{
    conn_clean_cmn(ct, conn);
    if (conn->conn_type == CT_CONN_TYPE_DEFAULT) {
        ovs_list_remove(&conn->exp_node);
        conn->cleaned = true;
        atomic_count_dec(&ct->n_conn);
    }
    ovsrcu_postpone(delete_conn_one, conn);
}