On Wed, Mar 23, 2016 at 09:14:10AM -0600, Eric Blake wrote:
> On 03/23/2016 08:16 AM, Denis V. Lunev wrote:
> > From: Pavel Borzenkov
> >
> > There exist some cases when a client knows that the data it is going to
> > write is all zeroes. Such cases include mirroring or backing up a device
> > im
On 03/23/2016 08:16 AM, Denis V. Lunev wrote:
> From: Pavel Borzenkov
>
> There exist some cases when a client knows that the data it is going to
> write is all zeroes. Such cases include mirroring or backing up a device
> implemented by a sparse file.
>
> With current NBD command set, the clien
From: Pavel Borzenkov
There exist some cases when a client knows that the data it is going to
write is all zeroes. Such cases include mirroring or backing up a device
implemented by a sparse file.
With current NBD command set, the client has to issue NBD_CMD_WRITE
command with zeroed payload and
