[Xen-devel] Re: consolidated xencomm

[Hollis Blanchard <hollisb@xxxxxxxxxx>]

On Thu, 2006-11-16 at 21:44 +0100, Tristan Gingold wrote:
> On Thu, Nov 16, 2006 at 11:08:19AM -0700, Alex Williamson wrote:
> > On Thu, 2006-11-16 at 09:55 -0600, Hollis Blanchard wrote:
> > > 
> > > I think I'm missing something. Why did IA64 fork xencomm?
> > > 
> > > I distinctly remember having conversations about sharing the code, which
> > > is obviously the right thing to do.
> > 
> >    Because Tristan believed the resulting amount of shared code would
> > actually be very small (1 file) and we wanted to get his work into the
> > tree before he left Bull.  We can still work to share as much as
> > possible even with the code split.  Thanks,
> Indeed.  Only asm/guest_access.h can be easily shared.  Feel free to do it.
>
> For the other files, sharing can't be easily done.  We have slightly changed
> the interface (we now have 3 ways: inline, mini and area).  Furthermore
> the translators are not very stable: bugs have been fixed recently.

Sharing can't easily be done *because* you've changed the interface, not
the other way around.

The patch I cited earlier today is a bug fix that applies to PowerPC as
well, but the code is not shared, and the patch did not fix both
architectures.

-- 
Hollis Blanchard
IBM Linux Technology Center


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