linux-kernel - Re: [PATCH 05/10] x86

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Message-ID: <20071230141829.GA28415@elte.hu>
Date:	Sun, 30 Dec 2007 15:18:29 +0100
From:	Ingo Molnar <mingo@...e.hu>
To:	Mike Travis <travis@....com>
Cc:	Andi Kleen <ak@...e.de>, Andrew Morton <akpm@...ux-foundation.org>,
	Christoph Lameter <clameter@....com>, linux-mm@...ck.org,
	linux-kernel@...r.kernel.org,
	Rusty Russell <rusty@...tcorp.com.au>, tglx@...utronix.de,
	mingo@...hat.com, "H. Peter Anvin" <hpa@...or.com>
Subject: Re: [PATCH 05/10] x86_64: Use generic percpu


* Mike Travis <travis@....com> wrote:

> > Also for such changes .text size comparisons before/after are a good 
> > idea.
> 
> x86_64-defconfig:
> 
> pre-percpu                          post-percpu
>       159373 .init.text                       +3 .init.text
>      1411137 .rodata                          +8 .rodata
>      3629056 .text                           +48 .text
>      7057383 Total                           +59 Total

ok, that looks like really minimal impact, so i'm in favor of merging 
this into arch/x86 - and the unification it does later on is nice too.

to get more test feedback: what would be the best way to get this tested 
in x86.git in a standalone way? Can i just pick up these 10 patches and 
remove all the non-x86 arch changes, and expect it to work - or are the 
other percpu preparatory/cleanup patches in -mm needed too?

	Ingo
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