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authorKeith Busch <kbusch@kernel.org>2022-11-10 21:44:58 +0300
committerJens Axboe <axboe@kernel.dk>2022-11-17 01:58:11 +0300
commit86e4d3e8d1838ca88fb9267e669c36f6c8f7c6cd (patch)
tree3295393cfa41c74798d8bc0230ff8858f38c5f21 /drivers/md
parentc964d62f5cab7b43dd0534f22a96eab386c6ec5d (diff)
downloadlinux-86e4d3e8d1838ca88fb9267e669c36f6c8f7c6cd.tar.xz
dm-crypt: provide dma_alignment limit in io_hints
This device mapper needs bio vectors to be sized and memory aligned to the logical block size. Set the minimum required queue limit accordingly. Link: https://lore.kernel.org/linux-block/20221101001558.648ee024@xps.demsh.org/ Fixes: b1a000d3b8ec5 ("block: relax direct io memory alignment") Reportred-by: Eric Biggers <ebiggers@kernel.org> Reported-by: Dmitrii Tcvetkov <me@demsh.org> Signed-off-by: Keith Busch <kbusch@kernel.org> Reviewed-by: Mike Snitzer <snitzer@kernel.org> Link: https://lore.kernel.org/r/20221110184501.2451620-3-kbusch@meta.com Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'drivers/md')
-rw-r--r--drivers/md/dm-crypt.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/md/dm-crypt.c b/drivers/md/dm-crypt.c
index 159c6806c19b..2653516bcdef 100644
--- a/drivers/md/dm-crypt.c
+++ b/drivers/md/dm-crypt.c
@@ -3630,6 +3630,7 @@ static void crypt_io_hints(struct dm_target *ti, struct queue_limits *limits)
limits->physical_block_size =
max_t(unsigned, limits->physical_block_size, cc->sector_size);
limits->io_min = max_t(unsigned, limits->io_min, cc->sector_size);
+ limits->dma_alignment = limits->logical_block_size - 1;
}
static struct target_type crypt_target = {