partition_check
error = partition_check(cr1->cr_label, cr2->cr_label);
error = partition_check(cred->cr_label, inp->inp_cred->cr_label);
error = partition_check(cred->cr_label, p->p_ucred->cr_label);
error = partition_check(cred->cr_label, p->p_ucred->cr_label);
error = partition_check(cred->cr_label, p->p_ucred->cr_label);
error = partition_check(cred->cr_label, so->so_cred->cr_label);