[PATCH] dm-verity: switch to bio_advance_iter_single()

Eric Biggers posted 1 patch 3 weeks, 5 days ago
drivers/md/dm-verity-target.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
[PATCH] dm-verity: switch to bio_advance_iter_single()
Posted by Eric Biggers 3 weeks, 5 days ago
dm-verity doesn't support data blocks that span pages, and it sets
dma_alignment accordingly.  As such, instead of using
bio_advance_iter(), it can use the more lightweight function
bio_advance_iter_single() to get the same result.

Signed-off-by: Eric Biggers <ebiggers@kernel.org>
---
 drivers/md/dm-verity-target.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/md/dm-verity-target.c b/drivers/md/dm-verity-target.c
index 777a0ebe8536..4b86f7faffd0 100644
--- a/drivers/md/dm-verity-target.c
+++ b/drivers/md/dm-verity-target.c
@@ -526,11 +526,11 @@ static int verity_verify_io(struct dm_verity_io *io)
 		iter = &iter_copy;
 	} else
 		iter = &io->iter;
 
 	for (b = 0; b < io->n_blocks;
-	     b++, bio_advance_iter(bio, iter, block_size)) {
+	     b++, bio_advance_iter_single(bio, iter, block_size)) {
 		sector_t blkno = io->block + b;
 		struct pending_block *block;
 		bool is_zero;
 		struct bio_vec bv;
 		void *data;

base-commit: 8fbb8fe75d4cf92eaa7b21828ec39c1bf79a262f
-- 
2.52.0
Re: [PATCH] dm-verity: switch to bio_advance_iter_single()
Posted by Sami Tolvanen 2 weeks ago
On Sun, Jan 11, 2026 at 12:28 PM Eric Biggers <ebiggers@kernel.org> wrote:
>
> dm-verity doesn't support data blocks that span pages, and it sets
> dma_alignment accordingly.  As such, instead of using
> bio_advance_iter(), it can use the more lightweight function
> bio_advance_iter_single() to get the same result.
>
> Signed-off-by: Eric Biggers <ebiggers@kernel.org>

Reviewed-by: Sami Tolvanen <samitolvanen@google.com>

Sami