Re: [Xen-devel] [PATCH] libxl: prefer qdisk over blktap when choosing disk backend

[Wei Liu <wei.liu2@xxxxxxxxxx>]

On Wed, Aug 28, 2013 at 11:35:50AM +0100, Ian Jackson wrote:
> Wei Liu writes ("Re: [PATCH] libxl: prefer qdisk over blktap when choosing 
> disk backend"):
> > On Tue, Aug 27, 2013 at 03:22:43PM +0100, Wei Liu wrote:
> > > There are some disk formats commonly supported by both qdisk and blktap.
> > > As qdisk is better supported and blktap is unmaintained, we choose qdisk
> > > over blktap whenever possible.
> 
> The reason for this ordering was that most kernels nowdays don't have
> blktap.  So you don't get blktap on new systems, only on old ones.
> That's good for stability I think.
> 
> Does that make any kind of sense ?
> 

What about installing newer Xen on old systems which have blktap? In
that case users can have better supported backend.

Wei.

> Ian.

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