[sheepdog] [PATCH v1, RFC] sheep: writeback cache semantics in backend store

[Liu Yuan]

On 08/30/2012 12:14 PM, MORITA Kazutaka wrote:
> On second thought, we don't need to modify QEMU and protocol at all.
> When writeback is enabled, QEMU sends I/O requests with a
> SD_FLAG_CMD_CACHE flag.

So all other request means writethrough? But how does qemu to disable
all cache then?

Thanks,
Yuan