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To: Andreas Mohr <andi@rhlx01.fht-esslingen.de>
Cc: Ingo Molnar <mingo@redhat.com>, linux-kernel@vger.kernel.org
Subject: Re: [PATCH -mm] x86_64 apic.h cpu_relax() (was: [RFC -mm] more cpu_relax() places?)
References: <20060612183743.GA28610@rhlx01.fht-esslingen.de>
	<20060613195430.GC24167@rhlx01.fht-esslingen.de>
From: Andi Kleen <ak@suse.de>
Date: 14 Jun 2006 07:34:07 +0200
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Andreas Mohr <andi@rhlx01.fht-esslingen.de> writes:

> Hi all,
> 
> On Mon, Jun 12, 2006 at 08:37:43PM +0200, Andreas Mohr wrote:
> > Hi all,
> > 
> > while reviewing 2.6.17-rc6-mm1, I found some places that might
> > want to make use of cpu_relax() in order to not block secondary
> > pipelines while busy-polling (probably especially useful on SMT CPUs):
> 
> Patch no. 3 of 3.
> 
> This one is adding a cpu_relax() that already existed in the i386 version.
> Any reason this wasn't there, too?
> 
> Signed-off-by: Andreas Mohr <andi@lisas.de>

I merged the patch thanks.

-Andi