linux-kernel - Re: [PATCH 01/01] x86: L3 cache index disable for 2.6.26

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Date:	Mon, 21 Jul 2008 14:48:12 +0200
From:	Ingo Molnar <mingo@...e.hu>
To:	Mark Langsdorf <mark.langsdorf@....com>
Cc:	tglx@...utronix.de, mingo@...hat.com, hpa@...or.com,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH 01/01] x86: L3 cache index disable for 2.6.26


* Ingo Molnar <mingo@...e.hu> wrote:

> > This patch provides a /sysfs interface under the cache hierarchy to 
> > display which caches indices are disabled (if any) and to monitoring 
> > applications to disable a cache index.
> > 
> > This patch does not set an automatic policy to disable the L3 cache.  
> > Policy decisions would need to be made by a RAS handler.  This patch 
> > merely makes it easier to see what indices are currently disabled.
> > 
> > Signed-off-by: Mark Langsdorf <mark.langsdorf@....com>
> 
> applied to tip/x86/cpu, thanks Mark.
> 
> I've done some coding style fixes for the new functions you've 
> introduced, see that commit below.

-tip testing found the following build failure:

 arch/x86/kernel/built-in.o: In function `show_cache_disable':
 intel_cacheinfo.c:(.text+0xbbf2): undefined reference to `k8_northbridges'
 arch/x86/kernel/built-in.o: In function `store_cache_disable':
 intel_cacheinfo.c:(.text+0xbd91): undefined reference to `k8_northbridges'

please send a delta fix patch against the tip/x86/cpu branch:

  http://people.redhat.com/mingo/tip.git/README

which has your patch plus the cleanup applied.

	Ingo

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