[sheepdog] [PATCH] sheep: do COW at local node for just one time

[Christoph Hellwig]

On Mon, Jun 25, 2012 at 12:08:40PM +0800, Liu Yuan wrote:
> If we do an early COW object reading at gateway node, it seems we don't
> need the COW code in store_create_and_write().

We don't as long as all nodes do it in the gateway.  But now that we
have the 0.4.0 release out we still need to support it in the backend
nodes for older gateways.  The reason why we keep that code should be
clearly documented in the code, though.