Re: [PATCH 0/4] exit: Make unlikely case in mm_update_next_owner() more scalable

From: Michal Hocko
Date: Thu Apr 26 2018 - 15:28:28 EST

On Thu 26-04-18 11:19:33, Eric W. Biederman wrote:
> Michal Hocko <mhocko@xxxxxxxxxx> 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.

I do not remember details. Have to re-read the whole thing again. Hope
to get to this soon but with the current jet lag and backlog from the
LSFMM I rather not promis anything. Going with mm->memcg would be the
most simple of course but I have a very vague recollection that it was
not possible. Maybe I misremember...

Michal Hocko