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block: handle nogenerate/noverify properly in fs-integrity

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Check the BIP_CHECK flags before generating or verifying PI information,
otherwise this can be incorrectly called for non-PI metadata and
cause generation of incorrect metadata and crashed in the verification
handler.

The new behavior matches that of the block layer auto-generated
metadata.

Fixes: 0bde8a12b5 ("block: add fs_bio_integrity helpers")
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Kanchan Joshi <joshi.k@samsung.com>
Reviewed-by: Anuj Gupta <anuj20.g@samsung.com>
Link: https://patch.msgid.link/20260804123928.736596-4-hch@lst.de
Signed-off-by: Jens Axboe <axboe@kernel.dk>
This commit is contained in:
Christoph Hellwig 2026-08-04 05:39:25 -07:00 committed by Jens Axboe
parent 738f01912a
commit 3bf9a21e7b
1 changed files with 5 additions and 1 deletions
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6
block/bio-integrity-fs.c
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@ -46,7 +46,8 @@ void fs_bio_integrity_free(struct bio *bio)
void fs_bio_integrity_generate(struct bio *bio)
{
if (fs_bio_integrity_alloc(bio))
if (fs_bio_integrity_alloc(bio) &&
(bio_integrity(bio)->bip_flags & BIP_CHECK_FLAGS))
bio_integrity_generate(bio);
}
EXPORT_SYMBOL_GPL(fs_bio_integrity_generate);
@ -60,6 +61,9 @@ int fs_bio_integrity_verify(struct bio *bio, sector_t sector, unsigned int size)
.bi_size = size,
};
if (!bip || !(bip->bip_flags & BIP_CHECK_FLAGS))
return 0;
/*
* Reinitialize bip->bip_iter.
*