Am 08.09.2011 17:24, schrieb Paolo Bonzini:
> The server can use it to issue a flush automatically after a
> write. The client can also use it to mimic a write-through
> cache.
>
> Signed-off-by: Paolo Bonzini <pbonz...@redhat.com>
> ---
> block/nbd.c | 8 ++++++++
> nbd.c | 13 +++++++++++--
> 2 files changed, 19 insertions(+), 2 deletions(-)
> @@ -674,6 +675,14 @@ int nbd_trip(BlockDriverState *bs, int csock, off_t
> size, uint64_t dev_offset,
> }
>
> *offset += request.len;
> +
> + if (request.type & NBD_CMD_FLAG_FUA) {
> + if (bdrv_flush(bs) == -1) {
Need to check for < 0 here as well.
Kevin
