coda_vop_error
{ &vop_default_desc, coda_vop_error },
{ &vop_mknod_desc, coda_vop_error }, /* mknod */
{ &vop_print_desc, coda_vop_error }, /* print */
{ &vop_bwrite_desc, coda_vop_error }, /* bwrite */
int coda_vop_error(void *);