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Date: Thu, 16 Jun 2016 13:07:34 +0200
From: Michal Hocko <mhocko@kernel.org>
To: Minchan Kim <minchan@kernel.org>
Cc: Johannes Weiner <hannes@cmpxchg.org>,
        Andrew Morton <akpm@linux-foundation.org>,
        linux-kernel@vger.kernel.org, linux-mm@kvack.org,
        Rik van Riel <riel@redhat.com>, Sangwoo Park <sangwoo2.park@lge.com>
Subject: Re: [PATCH v1 3/3] mm: per-process reclaim
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On Wed 15-06-16 09:40:27, Minchan Kim wrote:
[...]
> A question is it seems cgroup2 doesn't have per-cgroup swappiness.
> Why?

There was no strong use case for it AFAICT.
 
> I think we need it in one-cgroup-per-app model.

I wouldn't be opposed if it is really needed.
-- 
Michal Hocko
SUSE Labs