linux-kernel - Re: [PATCH] xen: core dom0 support

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Message-ID: <20090302120445.GA29015@elte.hu>
Date:	Mon, 2 Mar 2009 13:04:45 +0100
From:	Ingo Molnar <mingo@...e.hu>
To:	Gerd Hoffmann <kraxel@...hat.com>
Cc:	Jeremy Fitzhardinge <jeremy@...p.org>,
	Andrew Morton <akpm@...ux-foundation.org>,
	"H. Peter Anvin" <hpa@...or.com>,
	the arch/x86 maintainers <x86@...nel.org>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	Xen-devel <xen-devel@...ts.xensource.com>
Subject: Re: [PATCH] xen: core dom0 support


* Gerd Hoffmann <kraxel@...hat.com> wrote:

> Ingo Molnar wrote:
> >>> In three years time, will we regret having merged this?
> >> Its a pretty minor amount of extra stuff on top of what's been 
> >> added over the last 3 years, so I don't think it's going to 
> >> tip the scales on its own.  I wouldn't be comfortable in 
> >> trying to merge something that's very intrusive.
> > 
> > Hm, how can the same code that you call "massive out-of-tree 
> > patches which doesn't make anyone happy" in an out of tree 
> > context suddenly become non-intrusive "minor amount of extra 
> > stuff" in an upstream context?
> 
> The current, out-of-tree xen kernel stuff is based on 2.6.18. 
> [...]

Sure, but what i'm pointing out is the following aspect of 
communication:

>>> [...] At the moment its all running on massive out-of-tree 
>>> patches, which doesn't make anyone happy.  It's best that it 
>>> be in the mainline kernel.  You know, like we argue for 
>>> everything else.

Comparing it to a 2.6.18 base is simply misleading when it comes 
to upstreaming something. Enterprise distros will rebase, and 
their out-of-tree pile of patches will shrink.

	Ingo
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