Commit 69381cf8 authored by Mikulas Patocka's avatar Mikulas Patocka Committed by Mike Snitzer
Browse files

dm-integrity: set discard_granularity to logical block size 



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: default avatarMikulas Patocka <mpatocka@redhat.com>
Reported-by: default avatarEric Wheeler <linux-integrity@lists.ewheeler.net>
Cc: stable@vger.kernel.org # <= 6.9
Signed-off-by: default avatarMike Snitzer <snitzer@kernel.org>
parent 8b21ac87

drivers/md/dm-integrity.c

+1 −0
Original line number Diff line number Diff line
@@ -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;

	}

	limits->max_integrity_segments = USHRT_MAX;

}