Re: [PATCH 3/9] dm: use fs_dax_get_by_bdev instead of dax_get_by_host

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On Thu, Aug 26, 2021 at 6:59 AM Christoph Hellwig <hch@xxxxxx> wrote:
>
> 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 <hch@xxxxxx>
> Reviewed-by: Dan Williams <dan.j.williams@xxxxxxxxx>
> ---
>  drivers/md/dm.c | 2 +-

Mike, any objections to me taking this through a dax branch?

>  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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