linux-kernel - Re: [RFC patch 2/4] sched/tg: use 'unsigned long' for load variable in task group

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Date:	Mon, 17 Jun 2013 23:26:59 +0800
From:	Alex Shi <alex.shi@...el.com>
To:	Paul Turner <pjt@...gle.com>
CC:	Ingo Molnar <mingo@...hat.com>,
	Peter Zijlstra <peterz@...radead.org>,
	Thomas Gleixner <tglx@...utronix.de>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Borislav Petkov <bp@...en8.de>,
	Namhyung Kim <namhyung@...nel.org>,
	Mike Galbraith <efault@....de>,
	Morten Rasmussen <morten.rasmussen@....com>,
	Vincent Guittot <vincent.guittot@...aro.org>,
	Preeti U Murthy <preeti@...ux.vnet.ibm.com>,
	Viresh Kumar <viresh.kumar@...aro.org>,
	LKML <linux-kernel@...r.kernel.org>,
	Mel Gorman <mgorman@...e.de>, Rik van Riel <riel@...hat.com>,
	Michael Wang <wangyun@...ux.vnet.ibm.com>,
	Jason Low <jason.low2@...com>
Subject: Re: [RFC patch 2/4] sched/tg: use 'unsigned long' for load variable
 in task group

On 06/17/2013 08:25 PM, Paul Turner wrote:
> On Fri, Jun 7, 2013 at 12:29 AM, Alex Shi <alex.shi@...el.com> wrote:
>> > Since tg->load_avg is smaller than tg->load_weight, we don't need a
>> > atomic64_t variable for load_avg in 32 bit machine.
>> > The same reason for cfs_rq->tg_load_contrib.
> This description is incorrect, another patch removes tg->load_weight
> for being unused.

You can say this, but tg->load_weight was designed for the same meaning
as load_avg before. :)
> 
> Rest seems fine.

thanks for review.

-- 
Thanks
    Alex
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