PSLOT
mtx_destroy(&PSLOT(label)->mtx);
free(PSLOT(label), M_LOMAC);
mtx_init(&PSLOT(label)->mtx, "MAC/Lomac proc lock", NULL, MTX_DEF);
struct mac_lomac_proc *subj = PSLOT(p->p_label);
subj = PSLOT(curthread->td_proc->p_label);