[PATCH 02/10] xfstests: use mount point instead of device name

[Christoph Hellwig]

On Tue, Dec 10, 2013 at 12:11:53PM -0800, Junho Ryu wrote:
> From: Hugh Dickins <hughd at google.com>
> 
> A tmpfs mount does not involve any block device, its $SCRATCH_DEV is
> nothing but a place-holder, so apply 'df' or 'stat' to its mount point
> $SCRATCH_MNT instead of to $SCRATCH_DEV.
> 
> It also fixes a bug in generic/256: "stat -f $SCRATCH_DEV" returning the
> block size of the root file system, but not the test file system.
> 
> $ df | grep sda
> /dev/sda1    233191    62959    157791    29%    /boot
> 
> $ sudo dumpe2fs -h /dev/sda1 | grep "Block size"
> Block size:               1024
> 
> $ stat -f /dev/sda1 | grep "Block size"
> Block size: 4096       Fundamental block size: 4096
> 
> $ stat -f /boot | grep "Block size"
> Block size: 1024       Fundamental block size: 1024
> 
> Signed-off-by: Hugh Dickins <hughd at google.com>
> Signed-off-by: Theodore Ts'o <tytso at mit.edu>
> Signed-off-by: Junho Ryu <jayr at google.com>

Looks good,

Reviewed-by: Christoph Hellwig <hch at lst.de>


Although I have to wonder how you got these tests to run, as it seems
like you didn't implement _scratch_mkfs_sized for tmpfs.