On Fri, May 24, 2024 at 10:36:45AM GMT, "T.J. Mercier" <tjmercier@xxxxxxxxxx> wrote: > On Fri, May 24, 2024 at 7:23 AM Michal Koutný <mkoutny@xxxxxxxx> wrote: > Sometimes? Take freezer as an example. If you don't mount it on v1 > then /proc/cgroups currently advertises the total number of v2 > cgroups. I thought that was reasonable since there exists a > cgroup.freeze in every cgroup, but does freezer really count as a > controller in this case? v1 freezer controller and freezing implementation in v2 are different things. Before v1 mounting, the freezer* entry points to the v2 hierarchy (which causes listing it as realized for each (v2) cgroup but that's not true). > There's no freezer css for each cgroup Exactly. > so I guess the better answer is just to report 1 like you suggest. It matches better the reality of alloc'd css objects. Michal *) Same for any v1-only controller.
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