Michal Hocko <mho...@kernel.org> writes: > I've had a patch to remove owner few years back. It needed some work > to finish but maybe that would be a better than try to make > non-scalable thing suck less.
I have a question. Would it be reasonable to just have a mm->memcg? That would appear to be the simplest solution to the problem. That would require failing migration between memory cgroups if you are not moving all of processes/threads that have a given mm_struct. That should not be a huge restriction as typically it is only threads that share a mm. Further the check should be straigh forward: counting the number of threads and verifying the count matches the count on the mm_struct. Eric
