linux-kernel - Re: [v9 PATCH 0/9]: cpuidle: Cleanup cpuidle/ Introduce cpuidle to POWER.

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Message-ID: <20091116103649.GA23142@linux.vnet.ibm.com>
Date:	Mon, 16 Nov 2009 16:06:49 +0530
From:	Arun R Bharadwaj <arun@...ux.vnet.ibm.com>
To:	Peter Zijlstra <a.p.zijlstra@...llo.nl>,
	Benjamin Herrenschmidt <benh@...nel.crashing.org>,
	Ingo Molnar <mingo@...e.hu>,
	Vaidyanathan Srinivasan <svaidy@...ux.vnet.ibm.com>,
	Dipankar Sarma <dipankar@...ibm.com>,
	Balbir Singh <balbir@...ibm.com>,
	Andi Kleen <andi@...stfloor.org>,
	Arun Bharadwaj <arun@...ux.vnet.ibm.com>
Cc:	linux-kernel@...r.kernel.org, linuxppc-dev@...ts.ozlabs.org,
	linux-arch@...r.kernel.org, linux-acpi@...r.kernel.org
Subject: Re: [v9 PATCH 0/9]: cpuidle: Cleanup cpuidle/ Introduce cpuidle to
 POWER.

* Arun R Bharadwaj <arun@...ux.vnet.ibm.com> [2009-10-16 15:08:50]:

> Hi,
> 
> This patchset introduces cpuidle infrastructure to POWER, prototyping
> for pSeries, and also does a major refactoring of current x86 idle
> power management and a cleanup of cpuidle infrastructure.
> 
> This patch series has been in discussion for quite a while now and
> below are the links to the previous discussions.
> 
> Hopefully, this is ready to be included in the -tip tree.
> 
> v8 --> http://lkml.org/lkml/2009/10/8/82
> v7 --> http://lkml.org/lkml/2009/10/6/278
> v6 --> http://lkml.org/lkml/2009/9/22/180
> v5 --> http://lkml.org/lkml/2009/9/22/26
> v4 --> http://lkml.org/lkml/2009/9/1/133
> v3 --> http://lkml.org/lkml/2009/8/27/124
> v2 --> http://lkml.org/lkml/2009/8/26/233
> v1 --> http://lkml.org/lkml/2009/8/19/150
> 
> 
> Changes in this version:
> ----------------------------------------
>         *Added documentation for the new design regarding registration
>         of idle routines in Documentation/cpuidle/core.txt
> 
>         *Platforms which do not want the code bloat of cpuidle can
>         disable CONFIG_CPU_IDLE. Alternate definition of
>         cpuidle_idle_call is provided which would call the appropriate
>         idle routine provided by the arch without the overhead of
>         registration and governors.
>         (Thanks to Andi for raising this isuue)
> 
>         *I had missed a cpuidle_kick_cpus() in
>         cpuidle_pause_and_lock() which is called from the hotplug
>         path. So added that and tested this patchset by subjecting it
>         to cpuhotplug torture.
>         (Thanks to Balbir for noticing this)
> 
> 

Hi Peter,

Did you get time to look at this series?
Please let me know if we need any changes to this version to get it
merged.

thanks
> --arun
> 
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