block: bio-integrity: Advance seed correctly for larger interval sizes
authorMartin K. Petersen <martin.petersen@oracle.com>
Fri, 4 Feb 2022 03:42:09 +0000 (22:42 -0500)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Tue, 8 Feb 2022 17:34:05 +0000 (18:34 +0100)
commitf576721152fdf9c919cc2f16784f5caa6bba91ff
treebc2601cdf65bf7399fbfed956ff6717238af53cd
parenta5389c80992f0001ee505838fe6a8b20897ce96e
block: bio-integrity: Advance seed correctly for larger interval sizes

commit b13e0c71856817fca67159b11abac350e41289f5 upstream.

Commit 309a62fa3a9e ("bio-integrity: bio_integrity_advance must update
integrity seed") added code to update the integrity seed value when
advancing a bio. However, it failed to take into account that the
integrity interval might be larger than the 512-byte block layer
sector size. This broke bio splitting on PI devices with 4KB logical
blocks.

The seed value should be advanced by bio_integrity_intervals() and not
the number of sectors.

Cc: Dmitry Monakhov <dmonakhov@openvz.org>
Cc: stable@vger.kernel.org
Fixes: 309a62fa3a9e ("bio-integrity: bio_integrity_advance must update integrity seed")
Tested-by: Dmitry Ivanov <dmitry.ivanov2@hpe.com>
Reported-by: Alexey Lyashkov <alexey.lyashkov@hpe.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Link: https://lore.kernel.org/r/20220204034209.4193-1-martin.petersen@oracle.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
block/bio-integrity.c