[Sheepdog] [PATCH] add support for protocol driver create_options

[MORITA Kazutaka]

At Fri, 21 May 2010 13:40:31 +0200,
Kevin Wolf wrote:
> 
> Am 20.05.2010 07:36, schrieb MORITA Kazutaka:
> > This patch enables protocol drivers to use their create options which
> > are not supported by the format.  For example, protcol drivers can use
> > a backing_file option with raw format.
> > 
> > Signed-off-by: MORITA Kazutaka <morita.kazutaka at lab.ntt.co.jp>
> 
> Hm, this is not stackable, right? Though I do see that making it
> stackable would require some bigger changes, so maybe we can get away
> with claiming that this approach covers everything that happens in practice.
> 
> If we accept that this is the desired behaviour, the code looks good to me.
> 
As you say, this patch isn't stackable; we must specify a image name
with at most 1 format and 1 protocol.  I cannot think of a situation
where we want to use more than one protocol to create qemu images, so
this seems to be enough to me.

Thanks,

Kazutaka