linux-kernel - 答复: [PATCH -next] cgroup/pids: remove pids_cancel

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Message-ID: <018226cf88194edc9cabdd947b40c9e7@huawei.com>
Date: Fri, 17 May 2024 01:56:03 +0000
From: chenridong <chenridong@...wei.com>
To: Tejun Heo <tj@...nel.org>
CC: "lizefan.x@...edance.com" <lizefan.x@...edance.com>, "hannes@...xchg.org"
	<hannes@...xchg.org>, "cgroups@...r.kernel.org" <cgroups@...r.kernel.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"cyphar@...har.com" <cyphar@...har.com>
Subject: 答复: [PATCH -next] cgroup/pids: remove pids_cancel_attach

See, thank you.

-----邮件原件-----
发件人: Tejun Heo <htejun@...il.com> 代表 Tejun Heo
发送时间: 2024年5月17日 9:46
收件人: chenridong <chenridong@...wei.com>
抄送: lizefan.x@...edance.com; hannes@...xchg.org; cgroups@...r.kernel.org; linux-kernel@...r.kernel.org; cyphar@...har.com
主题: Re: [PATCH -next] cgroup/pids: remove pids_cancel_attach

On Fri, May 17, 2024 at 01:30:01AM +0000, Chen Ridong wrote:
> In pids subsystem, pids_can_attach never returns an error.
> Therefore, pids_cancel_attach is unnecessary and is never called.
> As a result, it should be removed.

There are subsystems which can tho and if pids is being migrated together, its cancel will be called.

Thanks.

--
tejun