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

[Chen Ridong]

On 2025/8/15 19:54, Hillf Danton wrote:
> 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);

Thank you for the additional clarification.

While this modification is functional, I’m concerned it might spawn a significant number of cgroup
destruction tasks—most of which would contend for cgroup_mutex. Could this waste system resources?

-- 
Best regards,
Ridong