On Wed, Nov 16, 2011 at 02:07:07PM +0900, MORITA Kazutaka wrote: > At Tue, 15 Nov 2011 17:06:52 -0500, > Christoph Hellwig wrote: > > > > This patch implement support for writeback-style cache in the sheepdog > > protocol. The SD_OP_FLUSH_VDI command will flush all data for the > > referenced VDI to stable storage. > > > > XXX: we'll need to figure out if the sheep server actually support this > > command somehow. > > If we increment SD_PROTO_VER, the sheep daemon should return > SD_RES_VER_MISMATCH error when opening the VDI. And then revert to trying the old protocol revision if it fails? Sounds like that would be worth a try. |