diff -drupN a/drivers/md/dm-verity.h b/drivers/md/dm-verity.h
--- a/drivers/md/dm-verity.h	2018-08-06 17:23:04.000000000 +0300
+++ b/drivers/md/dm-verity.h	2022-06-12 05:28:14.000000000 +0300
@@ -63,6 +63,7 @@ struct dm_verity {
 	sector_t hash_level_block[DM_VERITY_MAX_LEVELS];
 
 	struct dm_verity_fec *fec;	/* forward error correction */
+	unsigned long *validated_blocks; /* bitset blocks validated */
 };
 
 struct dm_verity_io {
@@ -126,4 +127,14 @@ extern int verity_hash(struct dm_verity
 extern int verity_hash_for_block(struct dm_verity *v, struct dm_verity_io *io,
 				 sector_t block, u8 *digest, bool *is_zero);
 
+extern void verity_status(struct dm_target *ti, status_type_t type,
+			unsigned status_flags, char *result, unsigned maxlen);
+extern int verity_prepare_ioctl(struct dm_target *ti,
+                struct block_device **bdev, fmode_t *mode);
+extern int verity_iterate_devices(struct dm_target *ti,
+				iterate_devices_callout_fn fn, void *data);
+extern void verity_io_hints(struct dm_target *ti, struct queue_limits *limits);
+extern void verity_dtr(struct dm_target *ti);
+extern int verity_ctr(struct dm_target *ti, unsigned argc, char **argv);
+extern int verity_map(struct dm_target *ti, struct bio *bio);
 #endif /* DM_VERITY_H */