From: Hongyu Jin <[email protected]>

The original submitting bio->bi_ioprio setting can be retained by
struct dm_crypt_io::base_bio, we set the original bio's ioprio to
the cloned bio for write.

Signed-off-by: Hongyu Jin <[email protected]>
---
 drivers/md/dm-crypt.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/md/dm-crypt.c b/drivers/md/dm-crypt.c
index 6de107aff331..b67fec865f00 100644
--- a/drivers/md/dm-crypt.c
+++ b/drivers/md/dm-crypt.c
@@ -1683,6 +1683,7 @@ static struct bio *crypt_alloc_buffer(struct dm_crypt_io 
*io, unsigned int size)
                                 GFP_NOIO, &cc->bs);
        clone->bi_private = io;
        clone->bi_end_io = crypt_endio;
+       clone->bi_ioprio = bio_prio(io->base_bio);
 
        remaining_size = size;
 
-- 
2.34.1


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