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

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Date: Thu, 16 May 2024 15:46:15 -1000
From: Tejun Heo <tj@...nel.org>
To: Chen Ridong <chenridong@...wei.com>
Cc: lizefan.x@...edance.com, hannes@...xchg.org, cgroups@...r.kernel.org,
	linux-kernel@...r.kernel.org, cyphar@...har.com
Subject: 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