linux-kernel - Re: [PATCH 0/9] setting the table for integration of cpuidle with the scheduler

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Date:	Mon, 27 Jan 2014 13:47:31 +0100
From:	Peter Zijlstra <peterz@...radead.org>
To:	Nicolas Pitre <nicolas.pitre@...aro.org>
Cc:	Russell King <linux@....linux.org.uk>,
	Catalin Marinas <catalin.marinas@....com>,
	Benjamin Herrenschmidt <benh@...nel.crashing.org>,
	Paul Mundt <lethal@...ux-sh.org>,
	Thomas Gleixner <tglx@...utronix.de>,
	Ingo Molnar <mingo@...hat.com>,
	"Rafael J. Wysocki" <rjw@...ysocki.net>,
	Daniel Lezcano <daniel.lezcano@...aro.org>,
	linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
	linuxppc-dev@...ts.ozlabs.org, linux-sh@...r.kernel.org,
	linux-pm@...r.kernel.org, linaro-kernel@...ts.linaro.org
Subject: Re: [PATCH 0/9] setting the table for integration of cpuidle with
 the scheduler

On Mon, Jan 27, 2014 at 01:08:15AM -0500, Nicolas Pitre wrote:
> As everyone should know by now, we want to integrate the cpuidle
> governor with the scheduler for a more efficient idling of CPUs.
> In order to help the transition, this small patch series moves the
> existing interaction with cpuidle from architecture code to generic
> core code.  No functional change should have occurred yet.
> 
> The ARM, PPC, SH and X86 architectures are concerned.  Small cleanups
> to ARM and ARM64 are also included. I don't know yet the best path for
> those patches to get into mainline, but it is probably best if they
> stay together. So ACKs from architecture maintainers would be greatly
> appreciated.
> 
> 
>  arch/arm/kernel/process.c                       | 21 +++---------
>  arch/arm/kernel/setup.c                         |  7 ++++
>  arch/arm64/kernel/process.c                     |  5 ---
>  arch/arm64/kernel/setup.c                       |  7 ++++
>  arch/powerpc/platforms/pseries/processor_idle.c |  5 +++
>  arch/powerpc/platforms/pseries/setup.c          | 34 ++++++++-----------
>  arch/sh/kernel/idle.c                           |  4 +--
>  arch/x86/kernel/process.c                       |  5 +--
>  include/linux/cpu.h                             |  1 -
>  kernel/Makefile                                 |  1 -
>  kernel/cpu/Makefile                             |  1 -
>  kernel/sched/Makefile                           |  2 +-
>  kernel/{cpu => sched}/idle.c                    |  6 ++--
>  13 files changed, 44 insertions(+), 55 deletions(-)

Thomas, any objections to this? It looks like a sensible thing to do.
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