RLIMIT_UMTXP
#ifdef RLIMIT_UMTXP
{ "umtx shared locks", (char *)0, RLIMIT_UMTXP, 1, 'o' },
{ "umtxp", login_getcapnum, RLIMIT_UMTXP },
case RLIMIT_UMTXP:
if (!chgumtxcnt(cred->cr_ruidinfo, 1, lim_cur(td, RLIMIT_UMTXP)))
case RLIMIT_UMTXP: