Re: [v3 5/6] mm, oom: don't mark all oom victims tasks with TIF_MEMDIE

Roman Gushchin
2017-06-29T18:45:13Z

On Thu, Jun 29, 2017 at 10:53:57AM +0200, Michal Hocko wrote:
> On Wed 21-06-17 22:19:15, Roman Gushchin wrote:
> > We want to limit the number of tasks which are having an access
> > to the memory reserves. To ensure the progress it's enough
> > to have one such process at the time.
> >
> > If we need to kill the whole cgroup, let's give an access to the
> > memory reserves only to the first process in the list, which is
> > (usually) the biggest process.
> > This will give us good chances that all other processes will be able
> > to quit without an access to the memory reserves.
>
> I don't like this to be honest. Is there any reason to go the reduced
> memory reserves access to oom victims I was suggesting earlier [1]?
>
> [1] http://lkml.kernel.org/r/http://lkml.kernel.org/r/1472723464-22866-2-git-send-email-mhocko@kernel.org

I've nothing against your approach. What's the state of this patchset?
Do you plan to bring it upstream?

Roman