qdetach
qdetach(_RD(q), 1, flag, crp, B_FALSE);
qdetach(_RD(q), 1, flag, crp, is_remove);
qdetach(_RD(rmq), 1, flag, crp, B_FALSE);
qdetach(rq, 0, 0, crp, B_FALSE);
extern void qdetach(queue_t *, int, int, cred_t *, boolean_t);