Re: [Xen-devel] [RFC Patch v3 15/18] support blktap remus in xl

[Ian Campbell <Ian.Campbell@xxxxxxxxxx>]

On Wed, 2014-09-10 at 15:19 +0800, Wen Congyang wrote:
> At 09/08/2014 07:39 PM, Ian Campbell Write:
> > NB, this series was presented as "Some bugfix patches". I think we are
> > way out of that territory and into feature land.
> > 
> > On Fri, 2014-09-05 at 17:10 +0800, Wen Congyang wrote:
> >> With this patch, we can use blktap remus like this:
> >> disk = [ 
> >> 'format=remus,devtype=disk,access=w,vdev=hda,backendtype=tap,target=192.168.3.1:9000|aio:filename'
> >>  ]
> > 
> > I don't think it makes sense to wedge remus in as a kind of pseudo
> > format as you've done here, but I'm not really sure what the actual
> > right answer is. I suspect some sort of remus specific field or cfg file
> > option. Perhaps ",remus=192.168...,target=filename".
> 
> What about this: "format=raw,backendtype=tap,filter=remus, 
> filter-params=192.168...,target=filename"?

I don't know, because you've not defined what a "filter" is as an
abstract concept i.e. what else might it be used for, so I don't know
why we would prefer it to just remus= as a toplevel thing.

Ian.


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