linux-kernel - Re: [PATCH] cgroup: Remove unnecessary call to strstrip()

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Date:   Fri, 15 Jan 2021 15:31:48 -0500
From:   Tejun Heo <tj@...nel.org>
To:     Michal Koutný <mkoutny@...e.com>
Cc:     Hao Lee <haolee.swjtu@...il.com>, lizefan@...wei.com,
        hannes@...xchg.org, cgroups@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH] cgroup: Remove unnecessary call to strstrip()

On Thu, Jan 14, 2021 at 01:44:27PM +0100, Michal Koutný wrote:
> Hello.
> 
> On Sun, Jan 03, 2021 at 02:50:01AM +0000, Hao Lee <haolee.swjtu@...il.com> wrote:
> > The string buf will be stripped in cgroup_procs_write_start() before it
> > is converted to int, so remove this unnecessary call to strstrip().
> Good catch, Hao.
> 
> Perhaps the code be then simplified a bit
> 
> -- >8 --
> From: =?UTF-8?q?Michal=20Koutn=C3=BD?= <mkoutny@...e.com>
> Date: Thu, 14 Jan 2021 13:23:39 +0100
> Subject: [PATCH] cgroup: cgroup.{procs,threads} factor out common parts
> MIME-Version: 1.0
> Content-Type: text/plain; charset=UTF-8
> Content-Transfer-Encoding: 8bit
> 
> The functions cgroup_threads_start and cgroup_procs_start are almost
> identical. In order to reduce duplication, factor out the common code in
> similar fashion we already do for other threadgroup/task functions. No
> functional changes are intended.
> 
> Suggested-by: Hao Lee <haolee.swjtu@...il.com>
> Signed-off-by: Michal Koutný <mkoutny@...e.com>

Applied to cgroup/for-5.12 w/ minor description update suggested by Daniel.

Thanks.

-- 
tejun