55 	struct dm_target *ti;  member
161 	return v->data_start + dm_target_offset(v->ti, bi_sector);  in verity_map_sector()
203 	struct mapped_device *md = dm_table_get_md(v->ti->table);  in verity_handle_err()
351 						   v->ti->per_bio_data_size);  in verity_verify_io()
453 	struct bio *bio = dm_bio_from_per_bio_data(io, v->ti->per_bio_data_size);  in verity_finish_io()
543 static int verity_map(struct dm_target *ti, struct bio *bio)  in verity_map()  argument
545 	struct dm_verity *v = ti->private;  in verity_map()
566 	io = dm_per_bio_data(bio, ti->per_bio_data_size);  in verity_map()
587 static void verity_status(struct dm_target *ti, status_type_t type,  in verity_status()  argument
590 	struct dm_verity *v = ti->private;  in verity_status()
634 static int verity_prepare_ioctl(struct dm_target *ti,  in verity_prepare_ioctl()  argument
637 	struct dm_verity *v = ti->private;  in verity_prepare_ioctl()
642 	    ti->len != i_size_read(v->data_dev->bdev->bd_inode) >> SECTOR_SHIFT)  in verity_prepare_ioctl()
647 static int verity_iterate_devices(struct dm_target *ti,  in verity_iterate_devices()  argument
650 	struct dm_verity *v = ti->private;  in verity_iterate_devices()
652 	return fn(ti, v->data_dev, v->data_start, ti->len, data);  in verity_iterate_devices()
655 static void verity_io_hints(struct dm_target *ti, struct queue_limits *limits)  in verity_io_hints()  argument
657 	struct dm_verity *v = ti->private;  in verity_io_hints()
668 static void verity_dtr(struct dm_target *ti)  in verity_dtr()  argument
670 	struct dm_verity *v = ti->private;  in verity_dtr()
687 		dm_put_device(ti, v->hash_dev);  in verity_dtr()
690 		dm_put_device(ti, v->data_dev);  in verity_dtr()
709 static int verity_ctr(struct dm_target *ti, unsigned argc, char **argv)  in verity_ctr()  argument
727 		ti->error = "Cannot allocate verity structure";  in verity_ctr()
730 	ti->private = v;  in verity_ctr()
731 	v->ti = ti;  in verity_ctr()
733 	if ((dm_table_get_mode(ti->table) & ~FMODE_READ)) {  in verity_ctr()
734 		ti->error = "Device must be readonly";  in verity_ctr()
740 		ti->error = "Not enough arguments";  in verity_ctr()
747 		ti->error = "Invalid version";  in verity_ctr()
753 	r = dm_get_device(ti, argv[1], FMODE_READ, &v->data_dev);  in verity_ctr()
755 		ti->error = "Data device lookup failed";  in verity_ctr()
759 	r = dm_get_device(ti, argv[2], FMODE_READ, &v->hash_dev);  in verity_ctr()
761 		ti->error = "Data device lookup failed";  in verity_ctr()
769 		ti->error = "Invalid data device block size";  in verity_ctr()
779 		ti->error = "Invalid hash device block size";  in verity_ctr()
788 		ti->error = "Invalid data blocks";  in verity_ctr()
794 	if (ti->len > (v->data_blocks << (v->data_dev_block_bits - SECTOR_SHIFT))) {  in verity_ctr()
795 		ti->error = "Data device is too small";  in verity_ctr()
803 		ti->error = "Invalid hash start";  in verity_ctr()
811 		ti->error = "Cannot allocate algorithm name";  in verity_ctr()
818 		ti->error = "Cannot initialize hash function";  in verity_ctr()
825 		ti->error = "Digest size too big";  in verity_ctr()
834 		ti->error = "Cannot allocate root digest";  in verity_ctr()
840 		ti->error = "Invalid root digest";  in verity_ctr()
849 			ti->error = "Cannot allocate salt";  in verity_ctr()
855 			ti->error = "Invalid salt";  in verity_ctr()
869 		r = dm_read_arg_group(_args, &as, &opt_params, &ti->error);  in verity_ctr()
877 				ti->error = "Not enough feature arguments";  in verity_ctr()
887 				ti->error = "Invalid feature arguments";  in verity_ctr()
905 		ti->error = "Too many tree levels";  in verity_ctr()
917 			ti->error = "Hash device offset overflow";  in verity_ctr()
929 		ti->error = "Cannot initialize dm-bufio";  in verity_ctr()
936 		ti->error = "Hash device is too small";  in verity_ctr()
941 …ti->per_bio_data_size = roundup(sizeof(struct dm_verity_io) + v->shash_descsize + v->digest_size *…  in verity_ctr()
946 		ti->error = "Cannot allocate workqueue";  in verity_ctr()
954 	verity_dtr(ti);  in verity_ctr()