[PATCH 5.4 64/65] dm zoned: assign max_io_len correctly

From: Greg Kroah-Hartman
Date: Tue Jul 07 2020 - 11:22:22 EST


From: Hou Tao <houtao1@xxxxxxxxxx>

commit 7b2377486767503d47265e4d487a63c651f6b55d upstream.

The unit of max_io_len is sector instead of byte (spotted through
code review), so fix it.

Fixes: 3b1a94c88b79 ("dm zoned: drive-managed zoned block device target")
Cc: stable@xxxxxxxxxxxxxxx
Signed-off-by: Hou Tao <houtao1@xxxxxxxxxx>
Reviewed-by: Damien Le Moal <damien.lemoal@xxxxxxx>
Signed-off-by: Mike Snitzer <snitzer@xxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>


---
drivers/md/dm-zoned-target.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

--- a/drivers/md/dm-zoned-target.c
+++ b/drivers/md/dm-zoned-target.c
@@ -790,7 +790,7 @@ static int dmz_ctr(struct dm_target *ti,
}

/* Set target (no write same support) */
- ti->max_io_len = dev->zone_nr_sectors << 9;
+ ti->max_io_len = dev->zone_nr_sectors;
ti->num_flush_bios = 1;
ti->num_discard_bios = 1;
ti->num_write_zeroes_bios = 1;