linux-kernel - Re: [PATCH tip:x86/mm 3/3] acpi throttling: Use this_cpu

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Message-ID: <alpine.DEB.2.00.1103300918240.25965@router.home>
Date:	Wed, 30 Mar 2011 09:20:08 -0500 (CDT)
From:	Christoph Lameter <cl@...ux.com>
To:	Tejun Heo <tj@...nel.org>
cc:	Ingo Molnar <mingo@...e.hu>, Thomas Gleixner <tglx@...utronix.de>,
	"H. Peter Anvin" <hpa@...or.com>, x86@...nel.org,
	linux-kernel@...r.kernel.org,
	Andrew Morton <akpm@...ux-foundation.org>,
	Pekka Enberg <penberg@...nel.org>
Subject: Re: [PATCH tip:x86/mm 3/3] acpi throttling: Use this_cpu_has and
 simplify code current cpu

On Mon, 28 Mar 2011, Tejun Heo wrote:

> On Sat, Mar 12, 2011 at 12:51:12PM +0100, Tejun Heo wrote:
> > From: Christoph Lameter <cl@...ux.com>
> >
> > With the this_cpu_xx we no longer need to pass an acpi
> > structure to the msr management code. Simplifies code and improves
> > performance.
> >
> > NOTE: This code is x86 specific (see #ifdef CONFIG_X86) but not under
> >       arch/x86.
> >
> > Signed-off-by: Christoph Lameter <cl@...ux.com>
> > Acked-by: Tejun Heo <tj@...nel.org>
> > ---
>
> Ingo, are you planning on picking these up?

Guess the patches missed the merge period. There could be more
optimizations of arch code if the infrastructure for this_cpu_has() would
be in but I guess I better hold off for awhile.

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