linux-kernel - Re: [PATCH 00/18] Make common x86 arch area for i386 and x86_64

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Date:	Wed, 14 Mar 2007 08:54:08 -0700 (PDT)
From:	Linus Torvalds <torvalds@...ux-foundation.org>
To:	Ingo Molnar <mingo@...e.hu>
cc:	Andi Kleen <andi@...stfloor.org>,
	Steven Rostedt <rostedt@...dmis.org>,
	linux-kernel@...r.kernel.org,
	Andrew Morton <akpm@...ux-foundation.org>,
	Chris Wright <chrisw@...s-sol.org>,
	Rusty Russell <rusty@...tcorp.com.au>,
	Glauber de Oliveira Costa <glommer@...il.com>
Subject: Re: [PATCH 00/18] Make common x86 arch area for i386 and x86_64 -
 Take 2

On Wed, 14 Mar 2007, Ingo Molnar wrote:
>
> and that's how i think unification of architectures should be done: move 
> code into kernel/* and drivers/*, _not_ into another architecture. That 
> way all architectures benefit.

Don't be silly.

Did you even *look* at the patches?

We're talking about things like

	b/arch/x86/kernel/cpu/cpufreq/powernow-k8.h

so please tell me what drugs you are on that say that we should move this 
into kernel/* and drivers/* and make all architectures benefit. It's 
*x86* specific, it's just that k8 exists both in 32-bit and 64-bit land.

The file is *already* shared, it's just that right now it is not in a 
shared location. Right now it is in arch/i386/ (as if it was 
i386-specific) and then x86-64 includes it with:

arch/x86_64/kernel/cpufreq/Makefile:

	#
	# Reuse the i386 cpufreq drivers
	#

	SRCDIR := ../../../i386/kernel/cpu/cpufreq

and anybody who thinks this is "nice" simply has no taste at all.

		Linus
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