On Wed, Jun 01, 2022 at 07:34:34PM +0200, Michal Koutny wrote: > Hello. > > On Mon, May 30, 2022 at 03:49:11PM +0800, Muchun Song <songmuchun@xxxxxxxxxxxxx> wrote: > > So we also allocate an object cgroup for the root_mem_cgroup. > > This change made me wary that this patch also kmem charging in the > root_mem_cgroup. Fortunately, get_obj_cgroup_from_current won't return > this objcg so all is fine. Yes, I had the same experience here :) Overall I feel like the handling of the root memcg and objcg are begging for a cleanup, but it's really far from being trivial. Maybe starting with documenting how it works now is a good idea...
