linux-kernel - Re: [RFC PATCH v1 1/2] sched: unified sched

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Date:	Wed, 25 Jan 2012 16:36:28 +0100
From:	Peter Zijlstra <a.p.zijlstra@...llo.nl>
To:	Arjan van de Ven <arjan@...ux.intel.com>
Cc:	Vaidyanathan Srinivasan <svaidy@...ux.vnet.ibm.com>,
	Vincent Guittot <vincent.guittot@...aro.org>,
	Indan Zupancic <indan@....nu>,
	Youquan Song <youquan.song@...el.com>,
	Ingo Molnar <mingo@...e.hu>,
	Suresh Siddha <suresh.b.siddha@...el.com>,
	Linux Kernel <linux-kernel@...r.kernel.org>
Subject: Re: [RFC PATCH v1 1/2] sched: unified sched_powersavings sysfs
 tunable

On Wed, 2012-01-25 at 07:12 -0800, Arjan van de Ven wrote:
> On 1/25/2012 7:10 AM, Peter Zijlstra wrote:
> 
> 
> btw... any reason why this feature is a config option with tons of
> ifdefs... why not just have this available all the time?
> it shouldn't be all that much code in the first place.

I guess its because SCHED_SMT and SCHED_MC also indicate the
availability of the topology functions like cpu_coregroup_mask() etc.

The whole powersave stuff got intermixed with all that.

But yes, I agree, we should kill all that and sort the topology stuff
differently.

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