]> git.ipfire.org Git - thirdparty/kernel/stable.git/commit
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 17:16:28 +0000 (18:16 +0100)
commitc237216a64908a086a8f4b2a8016d7291dc26bad
treeff39d7d3195525ca02d7b59eb46481047a0e0a96
parent909d3ec1bf9f0ec534bfc081b77c0836fea7b0e2
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