linux-kernel - Re: [PATCH v2 -next] cgroup: remove offline draining in root destruction to avoid hung

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Message-ID: <20250815115512.4616-1-hdanton@sina.com>
Date: Fri, 15 Aug 2025 19:54:58 +0800
From: Hillf Danton <hdanton@...a.com>
To: Chen Ridong <chenridong@...weicloud.com>
Cc: Michal Koutny <mkoutny@...e.com>,
	tj@...nel.org,
	cgroups@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	lujialin4@...wei.com,
	chenridong@...wei.com,
	gaoyingjie@...ontech.com
Subject: Re: [PATCH v2 -next] cgroup: remove offline draining in root destruction to avoid hung_tasks

On Fri, 15 Aug 2025 18:28:53 +0800 Chen Ridong wrote:
> 
> To clarify, when you mentioned "cut max_active off", did you mean setting max_active of
> cgroup_destroy_wq to 1?
> 
	cgroup_destroy_wq = alloc_workqueue("cgroup_destroy", 0, 0);