linux-kernel - Re: [PATCH] cgroup: Simplify code in css_set_move

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Date:   Thu, 3 Nov 2022 22:55:19 +0800
From:   Haifeng Xu <haifeng.xu@...pee.com>
To:     Tejun Heo <tj@...nel.org>
Cc:     Michal Koutný <mkoutny@...e.com>,
        lizefan.x@...edance.com, hannes@...xchg.org,
        cgroups@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] cgroup: Simplify code in css_set_move_task



On 2022/11/3 10:31, Tejun Heo wrote:
> On Thu, Nov 03, 2022 at 10:13:22AM +0800, Haifeng Xu wrote:
>> I understand your worries. Can I just check the populated state of
>> css_set in 'css_set_update_populated' and don't change the order any
>> more? I think it can also streamline 'css_set_move_task' a bit.
> 
> FWIW, I don't see much value in the proposed change. The resulting code
> isn't better in any noticeable way. Even if the change were straightforward,
> the value of the patch would seem questionable. There's no point in creating
> code churns like this. Nothing is improved in any material way while
> creating completely unnecessary risk for subtle breakages.
> 
> Thanks.
> 
Got it, thanks.