rack_check_reorder_ack
(void)rack_check_reorder_ack(tp, rack, rsm, rsm->r_end, cts, 1, __LINE__);
rack_check_reorder_ack(tp, rack, rsm, th_ack, cts, 1, __LINE__);
prohibit_marking = rack_check_reorder_ack(tp, rack, nrsm, nrsm->r_end, cts, 0, __LINE__);
prohibit_marking = rack_check_reorder_ack(tp, rack, nrsm, nrsm->r_end, cts, 0, __LINE__);
prohibit_marking = rack_check_reorder_ack(tp, rack, rsm, rsm->r_end, cts, 0, __LINE__);
prohibit_marking = rack_check_reorder_ack(tp, rack, nrsm, nrsm->r_end, cts, 0, __LINE__);
prohibit_marking = rack_check_reorder_ack(tp, rack, nrsm, nrsm->r_end, cts, 0, __LINE__);