On Tue, Dec 10, 2013 at 12:11:53PM -0800, Junho Ryu wrote:
> From: Hugh Dickins <hughd@xxxxxxxxxx>
> 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@xxxxxxxxxx>
> Signed-off-by: Theodore Ts'o <tytso@xxxxxxx>
> Signed-off-by: Junho Ryu <jayr@xxxxxxxxxx>
Reviewed-by: Christoph Hellwig <hch@xxxxxx>
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.