18 	return v->fec && v->fec->dev;  in verity_fec_is_enabled()
38 	mod = do_div(offset, v->fec->rsn);  in fec_interleave()
39 	return offset + mod * (v->fec->rounds << v->data_dev_block_bits);  in fec_interleave()
57 	position = (index + rsb) * v->fec->roots;  in fec_read_parity()
58 	block = div64_u64_rem(position, v->fec->io_size, &rem);  in fec_read_parity()
61 	res = dm_bufio_read_with_ioprio(v->fec->bufio, block, buf, ioprio);  in fec_read_parity()
97 	return &fio->bufs[i][j * v->fec->rsn];  in fec_buffer_rs_block()
135 		for (j = 0; j < v->fec->roots - par_buf_offset; j++)  in fec_decode_bufs()
138 		res = decode_rs8(fio->rs, block, par_buf, v->fec->rsn,  in fec_decode_bufs()
153 		offset += (v->fec->roots - par_buf_offset);  in fec_decode_bufs()
155 		if (offset < v->fec->io_size && (offset + v->fec->roots) > v->fec->io_size) {  in fec_decode_bufs()
156 			par_buf_offset = v->fec->io_size - offset;  in fec_decode_bufs()
163 		if (offset >= v->fec->io_size) {  in fec_decode_bufs()
230 	for (i = 0; i < v->fec->rsn; i++) {  in fec_read_bufs()
231 		ileaved = fec_interleave(v, rsb * v->fec->rsn + i);  in fec_read_bufs()
241 		bufio = v->fec->data_bufio;  in fec_read_bufs()
250 			if (unlikely(block >= v->fec->hash_blocks))  in fec_read_bufs()
265 			if (neras && *neras <= v->fec->roots)  in fec_read_bufs()
272 		if (bufio == v->fec->data_bufio &&  in fec_read_bufs()
283 			if (neras && *neras <= v->fec->roots &&  in fec_read_bufs()
317 		fio->rs = mempool_alloc(&v->fec->rs_pool, GFP_NOIO);  in fec_alloc_bufs()
323 		fio->bufs[n] = mempool_alloc(&v->fec->prealloc_pool, GFP_NOWAIT);  in fec_alloc_bufs()
335 		fio->bufs[n] = mempool_alloc(&v->fec->extra_pool, GFP_NOWAIT);  in fec_alloc_bufs()
343 		fio->output = mempool_alloc(&v->fec->output_pool, GFP_NOIO);  in fec_alloc_bufs()
357 		memset(fio->bufs[n], 0, v->fec->rsn << DM_VERITY_FEC_BUF_RS_BITS);  in fec_init_bufs()
441 	res = div64_u64(offset, v->fec->rounds << v->data_dev_block_bits);  in verity_fec_decode()
447 	rsb = offset - res * (v->fec->rounds << v->data_dev_block_bits);  in verity_fec_decode()
474 	struct dm_verity_fec *f = io->v->fec;  in verity_fec_finish_io()
521 	       v->fec->dev->name,  in verity_fec_status_table()
522 	       (unsigned long long)v->fec->blocks,  in verity_fec_status_table()
523 	       (unsigned long long)v->fec->start,  in verity_fec_status_table()
524 	       v->fec->roots);  in verity_fec_status_table()
531 	struct dm_verity_fec *f = v->fec;  in verity_fec_dtr()
551 	v->fec = NULL;  in verity_fec_dtr()
558 	return init_rs_gfp(8, 0x11d, 0, 1, v->fec->roots, gfp_mask);  in fec_rs_alloc()
596 		if (v->fec->dev) {  in verity_fec_parse_opt_args()
600 		r = dm_get_device(ti, arg_value, BLK_OPEN_READ, &v->fec->dev);  in verity_fec_parse_opt_args()
613 		v->fec->blocks = num_ll;  in verity_fec_parse_opt_args()
622 		v->fec->start = num_ll;  in verity_fec_parse_opt_args()
631 		v->fec->roots = num_c;  in verity_fec_parse_opt_args()
653 	v->fec = f;  in verity_fec_ctr_alloc()
664 	struct dm_verity_fec *f = v->fec;  in verity_fec_ctr()
747 	fec_blocks = div64_u64(f->rounds * f->roots, v->fec->roots << SECTOR_SHIFT);  in verity_fec_ctr()