linux-kernel - Re: [PATCH 1/2] cgroup: Fix /proc/cgroups count for v2

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Date: Tue, 28 May 2024 12:42:32 -1000
From: Tejun Heo <tj@...nel.org>
To: "T.J. Mercier" <tjmercier@...gle.com>
Cc: Michal Koutný <mkoutny@...e.com>,
	Zefan Li <lizefan.x@...edance.com>,
	Johannes Weiner <hannes@...xchg.org>, shakeel.butt@...ux.dev,
	cgroups@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 1/2] cgroup: Fix /proc/cgroups count for v2

On Tue, May 28, 2024 at 03:38:01PM -0700, T.J. Mercier wrote:
> > > I think it would make sense to introduce something in a similar
> > > fashion. Can't think of a good name off the top of my head but add a
> > > cgroup. file which lists the controllers in the subtree along with the
> > > number of css's.
> >
> > BTW, there is the 'debug' subsys that has (almost) exactly that:
> > 'debug.csses' -- it's in v1 fashion though so it won't show hierarchical
> > sums.

Yeah, something like that but hierarchical and built into cgroup2 interface.
Would that work for your use case?

Thanks.

-- 
tejun