linux-kernel - Re: [PATCH] percpu: avoid extra NOP in percpu_cmpxchg16b

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Message-ID: <alpine.DEB.2.00.1103280845480.7590@router.home>
Date:	Mon, 28 Mar 2011 08:46:05 -0500 (CDT)
From:	Christoph Lameter <cl@...ux.com>
To:	Eric Dumazet <eric.dumazet@...il.com>
cc:	Linus Torvalds <torvalds@...ux-foundation.org>,
	Ingo Molnar <mingo@...e.hu>, Pekka Enberg <penberg@...nel.org>,
	Thomas Gleixner <tglx@...utronix.de>,
	akpm@...ux-foundation.org, tj@...nel.org, npiggin@...nel.dk,
	rientjes@...gle.com, linux-kernel@...r.kernel.org,
	linux-mm@...ck.org
Subject: Re: [PATCH] percpu: avoid extra NOP in percpu_cmpxchg16b_double

On Mon, 28 Mar 2011, Eric Dumazet wrote:

> Therefore, NOPX should be :
>
> P6_NOP3 on SMP
> P6_NOP2 on !SMP

Acked-by: Christoph Lameter <cl@...ux.com>
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