Re: [PATCH v2] mm: memcg: update memcg OOM messages on cgroup2

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On Mon, Aug 06, 2018 at 11:19:26AM -0700, Tejun Heo wrote:
> On Mon, Aug 06, 2018 at 11:08:45AM -0700, Andrew Morton wrote:
> > On Mon, 6 Aug 2018 09:15:29 -0700 Tejun Heo <tj@xxxxxxxxxx> wrote:
> > 
> > > mem_cgroup_print_oom_info() currently prints the same info for cgroup1
> > > and cgroup2 OOMs.  It doesn't make much sense on cgroup2, which
> > > doesn't use memsw or separate kmem accounting - the information
> > > reported is both superflous and insufficient.  This patch updates the
> > > memcg OOM messages on cgroup2 so that
> > > 
> > > * It prints memory and swap usages and limits used on cgroup2.
> > > 
> > > * It shows the same information as memory.stat.
> > > 
> > > I took out the recursive printing for cgroup2 because the amount of
> > > output could be a lot and the benefits aren't clear.  An example dump
> > > follows.
> > 
> > This conflicts rather severely with Shakeel's "memcg: reduce memcg tree
> > traversals for stats collection".  Can we please park this until after
> > 4.19-rc1?
> 
> Sure, or I can refresh the patch on top of -mm too.

Now that 4.19 is released, do you mind refreshing this for 4.20?



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