On Fri, Jan 15, 2021 at 09:55:43AM +0800, chenzhou [off-list ref] wrote:

Yeah, this will select all enabled controllers, but which doesn't the behavior we want.

I see what the issue is now.

See above. Just the mount behavior isn't what we what.

I agree this a bug and your I find your approach correct

Reviewed-by: Michal Koutný <mkoutny-IBi9RG/b67k@public.gmane.org>

The behavior was changed since commit f5dfb5315d34 ("cgroup: take
options parsing into ->parse_monolithic()"), will add this as Fixes.

Thanks.

Michal