On Thu, Oct 22, 2020 at 10:25 AM Roman Gushchin <guro@xxxxxx> wrote: > [snip] > > > > Since bf4f059954dc ("mm: memcg/slab: obj_cgroup API") is in 5.9, I > > think we can take this patch for 5.9 and 5.10 but keep Roman's cleanup > > for 5.11. > > > > What does everyone think? > > I think we should use the link to the root approach both for stable backports > and for 5.11+, to keep them in sync. The cleanup (always charging the root cgroup) > is not directly related to this problem, and we can keep it for 5.11+ only. > > Thanks! Roman, can you send the signed-off patch for the root linking for use_hierarchy=0?