[bisected] xfs panics when attempting to mount btrfs

[Ben Myers]

Hey Eric,

On Sat, Dec 29, 2012 at 05:29:21PM -0600, Eric Sandeen wrote:
> From: Eric Sandeen <sandeen at redhat.com>
> 
> Do not return EFSCORRUPTED when filesystem probe finds no XFS magic
> 
> 9802182 changed the return value from EWRONGFS (aka EINVAL)
> to EFSCORRUPTED which doesn't seem to be handled properly by
> the root filesystem probe.
> 
> Signed-off-by: Eric Sandeen <sandeen at redhat.com>
> - ---
> 
> diff --git a/fs/xfs/xfs_mount.c b/fs/xfs/xfs_mount.c
> index da50846..7d6df7c 100644
> - --- a/fs/xfs/xfs_mount.c
> +++ b/fs/xfs/xfs_mount.c
> @@ -658,7 +658,7 @@ xfs_sb_quiet_read_verify(
>  		return;
>  	}
>  	/* quietly fail */
> - -	xfs_buf_ioerror(bp, EFSCORRUPTED);
> +	xfs_buf_ioerror(bp, EWRONGFS);
>  }
>  
>  static void

Applied.

Thanks,
Ben