oplmsu_wcmn_through_hndl
if (oplmsu_wcmn_through_hndl(uwq, mp, MSU_HIGH, RW_READER) ==
rval = oplmsu_wcmn_through_hndl(uwq, mp,
rval = oplmsu_wcmn_through_hndl(uwq, mp, MSU_NORM,
if (oplmsu_wcmn_through_hndl(q, mp, MSU_HIGH, rw) == FAILURE) {
int oplmsu_wcmn_through_hndl(queue_t *, mblk_t *, int, krw_t);