There is no point in trying to finding the dax device if the DAX flag is
not set on the queue as none of the users of the device mapper exported
block devices could make use of the DAX capability.

Signed-off-by: Christoph Hellwig <[email protected]>
Reviewed-by: Dan Williams <[email protected]>
---
 drivers/md/dm.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/md/dm.c b/drivers/md/dm.c
index 2c5f9e585211..465714341300 100644
--- a/drivers/md/dm.c
+++ b/drivers/md/dm.c
@@ -650,7 +650,7 @@ static int open_table_device(struct table_device *td, dev_t 
dev,
        }
 
        td->dm_dev.bdev = bdev;
-       td->dm_dev.dax_dev = dax_get_by_host(bdev->bd_disk->disk_name);
+       td->dm_dev.dax_dev = fs_dax_get_by_bdev(bdev);
        return 0;
 }
 
-- 
2.30.2


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