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dm-integrity: set discard_granularity to logical block size

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BugLink: https://bugs.launchpad.net/bugs/2074091

commit 69381cf88a8dfa0ab27fb801b78be813e7e8fb80 upstream.

dm-integrity could set discard_granularity lower than the logical block
size. This could result in failures when sending discard requests to
dm-integrity.

This fix is needed for kernels prior to 6.10.

Signed-off-by: Mikulas Patocka <mpatocka@redhat.com>
Reported-by: Eric Wheeler <linux-integrity@lists.ewheeler.net>
Cc: stable@vger.kernel.org # <= 6.9
Signed-off-by: Mike Snitzer <snitzer@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Portia Stephens <portia.stephens@canonical.com>
Signed-off-by: Roxana Nicolescu <roxana.nicolescu@canonical.com>
This commit is contained in:
Mikulas Patocka
2024-05-20 16:48:31 +02:00
committed by Roxana Nicolescu
parent 0a0eb631fa
commit 5a321a2de4
1 changed files with 1 additions and 0 deletions
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drivers/md/dm-integrity.c
+1
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@@ -3492,6 +3492,7 @@ static void dm_integrity_io_hints(struct dm_target *ti, struct queue_limits *lim
limits->physical_block_size = ic->sectors_per_block << SECTOR_SHIFT;
blk_limits_io_min(limits, ic->sectors_per_block << SECTOR_SHIFT);
limits->dma_alignment = limits->logical_block_size - 1;
limits->discard_granularity = ic->sectors_per_block << SECTOR_SHIFT;
}
}