diff mbox series

[v2,02/10] block: set bip_vcnt correctly

Message ID 20240626100700.3629-3-anuj20.g@samsung.com (mailing list archive)
State New
Headers show
Series Read/Write with meta/integrity | expand

Commit Message

Anuj Gupta June 26, 2024, 10:06 a.m. UTC 
Set the bip_vcnt correctly in bio_integrity_init_user and
bio_integrity_copy_user. If the bio gets split at a later point,
this value is required to set the right bip_vcnt in the cloned bio.

Signed-off-by: Anuj Gupta <anuj20.g@samsung.com>
Signed-off-by: Kanchan Joshi <joshi.k@samsung.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
---
 block/bio-integrity.c | 2 ++
 1 file changed, 2 insertions(+)

Comments

Christoph Hellwig June 28, 2024, 6:04 a.m. UTC | #1 
Jens, can you pick this one up for 6.11?  We can't really trigger
it as-is, but it would be good to get it out of the way and avoid
someone else triggering the issue (e.g. Mikulas with his dm-integrity
work).
Jens Axboe June 28, 2024, 8:35 p.m. UTC | #2 
On 6/28/24 12:04 AM, Christoph Hellwig wrote:
> Jens, can you pick this one up for 6.11?  We can't really trigger
> it as-is, but it would be good to get it out of the way and avoid
> someone else triggering the issue (e.g. Mikulas with his dm-integrity
> work).

Yeah done - worth noting that patch 1 in this series is already in
my tree as well.
diff mbox series

Patch

diff --git a/block/bio-integrity.c b/block/bio-integrity.c
index dab70370b2c7..af79d9fbf413 100644
--- a/block/bio-integrity.c
+++ b/block/bio-integrity.c
@@ -276,6 +276,7 @@  static int bio_integrity_copy_user(struct bio *bio, struct bio_vec *bvec,
 
 	bip->bip_flags |= BIP_INTEGRITY_USER | BIP_COPY_USER;
 	bip->bip_iter.bi_sector = seed;
+	bip->bip_vcnt = nr_vecs;
 	return 0;
 free_bip:
 	bio_integrity_free(bio);
@@ -297,6 +298,7 @@  static int bio_integrity_init_user(struct bio *bio, struct bio_vec *bvec,
 	bip->bip_flags |= BIP_INTEGRITY_USER;
 	bip->bip_iter.bi_sector = seed;
 	bip->bip_iter.bi_size = len;
+	bip->bip_vcnt = nr_vecs;
 	return 0;
 }