On Thu, Sep 15, 2016 at 12:49:35PM +0200, Wouter Verhelst wrote: > A while back, we spent quite some time defining the semantics of the > various commands in the face of the NBD_CMD_FLUSH and NBD_CMD_FLAG_FUA > write barriers. At the time, we decided that it would be unreasonable > to expect servers to make these write barriers effective across > different connections. Do you have a nbd protocol specification? treating a flush or fua as any sort of barrier is incredibly stupid. Is it really documented that way, and if yes, why? -- To unsubscribe from this list: send the line "unsubscribe linux-block" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html