PR_LIMITFAIL
if ((flags & PR_WAITOK) && !(flags & PR_LIMITFAIL)) {
KASSERT((flags & (PR_NOWAIT|PR_LIMITFAIL)) != 0);
KASSERT((flags & (PR_NOWAIT|PR_LIMITFAIL)) != 0);
KASSERT((flags & (PR_NOWAIT|PR_LIMITFAIL)) != 0);
KASSERT((prflags & ~(PR_LIMITFAIL | PR_WAITOK | PR_NOWAIT)) == 0);
how == M_WAIT ? PR_WAITOK|PR_LIMITFAIL : PR_NOWAIT);
how == M_WAIT ? (PR_WAITOK|PR_LIMITFAIL) : PR_NOWAIT,