kern_clock_nanosleep
error = kern_clock_nanosleep(td, clock_id, flags, &rqt, &rmt);
return (kern_clock_nanosleep(td, clockid, flags, rqtp, rmtp));
return (kern_clock_nanosleep(td, CLOCK_REALTIME, TIMER_RELTIME, rqt,
error = kern_clock_nanosleep(td, clock_id, flags, &rqt, &rmt);
int kern_clock_nanosleep(struct thread *td, clockid_t clock_id, int flags,