rrw_status
return rrw_status(&VTOI(ap->a_vp)->i_lock);
return rrw_status(&VTOU(ap->a_vp)->u_lock);
return rrw_status(&VTOI(ap->a_vp)->i_lock);
return rrw_status(&VTODE(ap->a_vp)->de_lock);
return rrw_status(&VTONFS(ap->a_vp)->n_lock);
int rrw_status(struct rrwlock *);
return rrw_status(&tnp->tn_vlock);
return rrw_status(&VTOI(ap->a_vp)->i_lock);