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

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Message-ID: <20090228072055.GC9351@elte.hu>
Date:	Sat, 28 Feb 2009 08:20:55 +0100
From:	Ingo Molnar <mingo@...e.hu>
To:	Jeremy Fitzhardinge <jeremy@...p.org>
Cc:	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


* Jeremy Fitzhardinge <jeremy@...p.org> wrote:

> [...] 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.
>
>> 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?

I wish the upstream kernel was able to do such magic, but i'm 
afraid it is not.

	Ingo
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