linux-kernel - Re: [PATCH v3 1/1] cgroup: fix deadlock caused by cgroup_mutex and cpu_hotplug

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Message-ID: <ZuKDVMTvy5Q8evSx@slm.duckdns.org>
Date: Wed, 11 Sep 2024 19:59:48 -1000
From: Tejun Heo <tj@...nel.org>
To: Chen Ridong <chenridong@...weicloud.com>
Cc: Roman Gushchin <roman.gushchin@...ux.dev>,
	Michal Koutný <mkoutny@...e.com>,
	Chen Ridong <chenridong@...wei.com>, martin.lau@...ux.dev,
	ast@...nel.org, daniel@...earbox.net, andrii@...nel.org,
	eddyz87@...il.com, song@...nel.org, yonghong.song@...ux.dev,
	john.fastabend@...il.com, kpsingh@...nel.org, sdf@...gle.com,
	haoluo@...gle.com, jolsa@...nel.org, lizefan.x@...edance.com,
	hannes@...xchg.org, bpf@...r.kernel.org, cgroups@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH v3 1/1] cgroup: fix deadlock caused by cgroup_mutex and
 cpu_hotplug_lock

On Thu, Sep 12, 2024 at 09:33:23AM +0800, Chen Ridong wrote:
> I will add a patch do document that.
> Should we modify WQ_DFL_ACTIVE(256 now)? Maybe 1024 is acceptable?

Yeah, let's bump it.

Thanks.

-- 
tejun