linux-kernel - Re: [PATCH 1/7] mm: memcontrol: charge swap to cgroup2

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Message-ID: <20151216110912.GA29816@cmpxchg.org>
Date:	Wed, 16 Dec 2015 06:09:12 -0500
From:	Johannes Weiner <hannes@...xchg.org>
To:	Kamezawa Hiroyuki <kamezawa.hiroyu@...fujitsu.com>
Cc:	Vladimir Davydov <vdavydov@...tuozzo.com>,
	Michal Hocko <mhocko@...nel.org>,
	Andrew Morton <akpm@...ux-foundation.org>, linux-mm@...ck.org,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH 1/7] mm: memcontrol: charge swap to cgroup2

On Wed, Dec 16, 2015 at 12:18:30PM +0900, Kamezawa Hiroyuki wrote:
> Hmm, my requests are
>  - set the same capabilities as mlock() to set swap.limit=0

Setting swap.max is already privileged operation.

>  - swap-full notification via vmpressure or something mechanism.

Why?

>  - OOM-Killer's available memory calculation may be corrupted, please check.

Vladimir updated mem_cgroup_get_limit().

>  - force swap-in at reducing swap.limit

Why?
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