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block: factor out a bio_integrity_setup_default helper

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Add a helper to set the seed and check flag based on useful defaults
from the profile.

Note that this includes a small behavior change, as we now only set the
seed if any action is set, which is fine as nothing will look at it
otherwise.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Anuj Gupta <anuj20.g@samsung.com>
Reviewed-by: Kanchan Joshi <joshi.k@samsung.com>
Reviewed-by: Martin K. Petersen <martin.petersen@oracle.com>
Reviewed-by: Darrick J. Wong <djwong@kernel.org>
Tested-by: Anuj Gupta <anuj20.g@samsung.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
This commit is contained in:
Christoph Hellwig
2026-02-23 05:20:02 -08:00
committed by Jens Axboe
parent 7ea25eaad5
commit a936655697
3 changed files with 19 additions and 12 deletions
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14
block/bio-integrity-auto.c
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@@ -88,7 +88,6 @@ bool __bio_integrity_endio(struct bio *bio)
*/
void bio_integrity_prep(struct bio *bio, unsigned int action)
{
struct blk_integrity *bi = blk_get_integrity(bio->bi_bdev->bd_disk);
struct bio_integrity_data *bid;
bid = mempool_alloc(&bid_pool, GFP_NOIO);
@@ -96,17 +95,8 @@ void bio_integrity_prep(struct bio *bio, unsigned int action)
bid->bio = bio;
bid->bip.bip_flags |= BIP_BLOCK_INTEGRITY;
bio_integrity_alloc_buf(bio, action & BI_ACT_ZERO);
bip_set_seed(&bid->bip, bio->bi_iter.bi_sector);
if (action & BI_ACT_CHECK) {
if (bi->csum_type == BLK_INTEGRITY_CSUM_IP)
bid->bip.bip_flags |= BIP_IP_CHECKSUM;
if (bi->csum_type)
bid->bip.bip_flags |= BIP_CHECK_GUARD;
if (bi->flags & BLK_INTEGRITY_REF_TAG)
bid->bip.bip_flags |= BIP_CHECK_REFTAG;
}
if (action & BI_ACT_CHECK)
bio_integrity_setup_default(bio);
/* Auto-generate integrity metadata if this is a write */
if (bio_data_dir(bio) == WRITE && bip_should_check(&bid->bip))

16
block/bio-integrity.c
View File

@@ -101,6 +101,22 @@ void bio_integrity_free_buf(struct bio_integrity_payload *bip)
kfree(bvec_virt(bv));
}
void bio_integrity_setup_default(struct bio *bio)
{
struct blk_integrity *bi = blk_get_integrity(bio->bi_bdev->bd_disk);
struct bio_integrity_payload *bip = bio_integrity(bio);
bip_set_seed(bip, bio->bi_iter.bi_sector);
if (bi->csum_type) {
bip->bip_flags |= BIP_CHECK_GUARD;
if (bi->csum_type == BLK_INTEGRITY_CSUM_IP)
bip->bip_flags |= BIP_IP_CHECKSUM;
}
if (bi->flags & BLK_INTEGRITY_REF_TAG)
bip->bip_flags |= BIP_CHECK_REFTAG;
}
/**
* bio_integrity_free - Free bio integrity payload
* @bio: bio containing bip to be freed

1
include/linux/bio-integrity.h
View File

@@ -143,5 +143,6 @@ static inline int bio_integrity_add_page(struct bio *bio, struct page *page,
void bio_integrity_alloc_buf(struct bio *bio, bool zero_buffer);
void bio_integrity_free_buf(struct bio_integrity_payload *bip);
void bio_integrity_setup_default(struct bio *bio);
#endif /* _LINUX_BIO_INTEGRITY_H */