Re: [Xen-devel] xl block-attach vs block-detach

[Stefano Stabellini <stefano.stabellini@xxxxxxxxxxxxx>]

On Fri, 2 Mar 2012, Stefano Stabellini wrote:
> On Fri, 2 Mar 2012, Jan Beulich wrote:
> > > What would be the rationale behind using blkback+loop for "file:"?
> > > Backward compatibility?
> > 
> > Yes.
> > 
> > > Do you think it might break something for users if we change the backend
> > > from xend to xl?
> > 
> > This cannot be excluded, particularly because (just like me here)
> > users tend to do things you didn't expect them to when you write
> > the code.
> 
> I see your point but actually that is quite an obvious bug, not a very
> subtle one that only happens in strange user configs.
> 

Scratch that: I have just tried on Linux 3.3 and the performance of
blkback with loopback is very good. We should use it whenever we can.

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