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

[Kevin Wolf]

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.

Kevin