linux-kernel - Re: [PATCH 2/2] sched: Split the function show

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Date:   Fri, 4 Dec 2020 09:22:34 +0800
From:   Yunfeng Ye <yeyunfeng@...wei.com>
To:     Mel Gorman <mgorman@...e.de>
CC:     <mingo@...hat.com>, <peterz@...radead.org>,
        <juri.lelli@...hat.com>, <vincent.guittot@...aro.org>,
        <dietmar.eggemann@....com>, <rostedt@...dmis.org>,
        <bsegall@...gle.com>, <bristot@...hat.com>,
        <linux-kernel@...r.kernel.org>, Shiyuan Hu <hushiyuan@...wei.com>,
        Hewenliang <hewenliang4@...wei.com>
Subject: Re: [PATCH 2/2] sched: Split the function show_schedstat()



On 2020/12/3 17:42, Mel Gorman wrote:
> On Thu, Dec 03, 2020 at 02:47:14PM +0800, Yunfeng Ye wrote:
>> The schedstat include runqueue-specific stats and domain-specific stats,
>> so split it into two functions, show_rqstat() and show_domainstat().
>>
>> No functional changes.
>>
>> Signed-off-by: Yunfeng Ye <yeyunfeng@...wei.com>
> 
> Why?
> 
> I could understand if there was a follow-up patch that adjusted some
> subset or there was a difference in checking for schedstat_enabled,
> locking or inserting new schedstat information. This can happen in the
> general case when the end result is easier to review here it seems to be
> just moving code around.
> 
The rqstat and domainstat is independent state information. so I think
split it into two individual function is clearer.

Thanks.