acl_type_unold
error = VOP_SETACL(vp, acl_type_unold(type), inkernelacl, l->l_cred);
error = VOP_GETACL(vp, acl_type_unold(type), inkernelacl, l->l_cred);
error = VOP_SETACL(vp, acl_type_unold(type), 0, l->l_cred);
error = VOP_ACLCHECK(vp, acl_type_unold(type), inkernelacl,