Re: [PATCH 12/12] xfs use fs_holder_ops for the log and RT devices

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On Wed, Aug 02, 2023 at 05:41:31PM +0200, Christoph Hellwig wrote:
> Use the generic fs_holder_ops to shut down the file system when the
> log or RT device goes away instead of duplicating the logic.
> 
> Signed-off-by: Christoph Hellwig <hch@xxxxxx>

Nice cleanup,
Reviewed-by: Darrick J. Wong <djwong@xxxxxxxxxx>

--D

> ---
>  fs/xfs/xfs_super.c | 17 +++--------------
>  1 file changed, 3 insertions(+), 14 deletions(-)
> 
> diff --git a/fs/xfs/xfs_super.c b/fs/xfs/xfs_super.c
> index d5042419ed9997..338eba71ff8667 100644
> --- a/fs/xfs/xfs_super.c
> +++ b/fs/xfs/xfs_super.c
> @@ -377,17 +377,6 @@ xfs_setup_dax_always(
>  	return 0;
>  }
>  
> -static void
> -xfs_bdev_mark_dead(
> -	struct block_device	*bdev)
> -{
> -	xfs_force_shutdown(bdev->bd_holder, SHUTDOWN_DEVICE_REMOVED);
> -}
> -
> -static const struct blk_holder_ops xfs_holder_ops = {
> -	.mark_dead		= xfs_bdev_mark_dead,
> -};
> -
>  STATIC int
>  xfs_blkdev_get(
>  	xfs_mount_t		*mp,
> @@ -396,8 +385,8 @@ xfs_blkdev_get(
>  {
>  	int			error = 0;
>  
> -	*bdevp = blkdev_get_by_path(name, BLK_OPEN_READ | BLK_OPEN_WRITE, mp,
> -				    &xfs_holder_ops);
> +	*bdevp = blkdev_get_by_path(name, BLK_OPEN_READ | BLK_OPEN_WRITE,
> +				    mp->m_super, &fs_holder_ops);
>  	if (IS_ERR(*bdevp)) {
>  		error = PTR_ERR(*bdevp);
>  		xfs_warn(mp, "Invalid device [%s], error=%d", name, error);
> @@ -412,7 +401,7 @@ xfs_blkdev_put(
>  	struct block_device	*bdev)
>  {
>  	if (bdev)
> -		blkdev_put(bdev, mp);
> +		blkdev_put(bdev, mp->m_super);
>  }
>  
>  STATIC void
> -- 
> 2.39.2
> 



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