Hello Chen. On Fri, Dec 18, 2020 at 02:17:55PM +0800, Chen Zhou <chenzhou10@xxxxxxxxxx> wrote: > When mounting a cgroup hierarchy with disabled controller in cgroup v1, > all available controllers will be attached. Not sure if I understand the situation -- have you observed a v1 controller attached to a hierarchy while specifying cgroup_no_v1= kernel cmdline arg? AFAICS, the disabled controllers are honored thanks to check_cgroupfs_options(). Michal
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