[Sheepdog] [PATCH v3] sheep: change snapshot/clone flow

[Christoph Hellwig]

On Fri, Apr 20, 2012 at 09:25:52AM +0000, Huxinwei wrote:
> What if the old code from qemu connects to the latest sheepdog with basic data structure changed ?
> Will it destroy our precious data ?
> 
> Btw: It seems that we don't have version defined for client-server communication. Is that right ?

Seems like it doesn't exist, but really should.  But even with
versioning changing the middle of an on the wire data structure is
someting that should generaly be avoided, as it makes the code dealing
with the on the write structure much harder.