[PATCH AUTOSEL 4.19 08/11] dm-integrity: set dma_alignment limit in io_hints

From: Sasha Levin
Date: Wed Nov 23 2022 - 07:55:34 EST


From: Keith Busch <kbusch@xxxxxxxxxx>

[ Upstream commit 29aa778bb66795e6a78b1c99beadc83887827868 ]

This device mapper needs bio vectors to be sized and memory aligned to
the logical block size. Set the minimum required queue limit
accordingly.

Signed-off-by: Keith Busch <kbusch@xxxxxxxxxx>
Reviewed-by: Mike Snitzer <snitzer@xxxxxxxxxx>
Link: https://lore.kernel.org/r/20221110184501.2451620-5-kbusch@xxxxxxxx
Signed-off-by: Jens Axboe <axboe@xxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
drivers/md/dm-integrity.c | 1 +
1 file changed, 1 insertion(+)

diff --git a/drivers/md/dm-integrity.c b/drivers/md/dm-integrity.c
index 8456e82409e2..7492e6abb5a5 100644
--- a/drivers/md/dm-integrity.c
+++ b/drivers/md/dm-integrity.c
@@ -2564,6 +2564,7 @@ static void dm_integrity_io_hints(struct dm_target *ti, struct queue_limits *lim
limits->logical_block_size = ic->sectors_per_block << SECTOR_SHIFT;
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;
}
}

--
2.35.1