[sheepdog] [RFC PATCH] farm: don't check of the existing object before slice_write

[Liu Yuan]

On Fri, Jul 19, 2013 at 01:33:16PM +0900, MORITA Kazutaka wrote:
> Currently, we stores sliced objects for the farm store, so
> sha1_file_exist() fails always.
> 
> Signed-off-by: MORITA Kazutaka <morita.kazutaka at lab.ntt.co.jp>
> ---
> 
> Other approaches are:
> 
>  - Calculate the sha1 digest before slicing objects and store the
>    value to the farm store so that sha1_file_exist() can check it.
> 
>  - Make sheep return the hash value of the sliced data.
> 
> Any suggestions?

I don't understand this patch. Does it solve any exsiting problem?
Why sha1_file_exist() will fail? Every object will have a unquie sha1 as
before after stored into farm.

Thanks
Yuan