[sheepdog] [PATCH] md: don't use xattr for calculating path space

[Liu Yuan]

On 05/23/2013 05:54 PM, Kai Zhang wrote:
> 
> But collie is using it as free space.
> 
> I will fix it also.

Oops, you are right, we should return free size. Without xattr, we need
a method to store the total size we assigned to this 'vdisk'.

Thanks,
Yuan