Date: Tue, 3 Jun 2014 13:09:59 +0200
From: Michal Hocko <mhocko@suse.cz>
To: Greg Thelen <gthelen@google.com>
Cc: Johannes Weiner <hannes@cmpxchg.org>,
        Andrew Morton <akpm@linux-foundation.org>,
        KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>,
        KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>,
        Michel Lespinasse <walken@google.com>, Tejun Heo <tj@kernel.org>,
        Hugh Dickins <hughd@google.com>, Roman Gushchin <klamm@yandex-team.ru>,
        LKML <linux-kernel@vger.kernel.org>, linux-mm@kvack.org,
        Rik van Riel <riel@redhat.com>
Subject: Re: [PATCH v2 0/4] memcg: Low-limit reclaim
Message-ID: <20140603110959.GE1321@dhcp22.suse.cz>
References: <1398688005-26207-1-git-send-email-mhocko@suse.cz>
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 <20140528134905.GF2878@cmpxchg.org>
 <20140528142144.GL9895@dhcp22.suse.cz>
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On Wed 28-05-14 09:17:13, Greg Thelen wrote:
[...]
> My 2c...  The following works for my use cases:
> 1) introduce memory.low_limit_in_bytes (default=0 thus no default change
>    from older kernels)
> 2) interested users will set low_limit_in_bytes to non-zero value.
>    Memory protected by low limit should be as migratable/reclaimable as
>    mlock memory.  If a zone full of mlock memory causes oom kills, then
>    so should the low limit.

Would fallback mode in overcommit or the corner case situation break
your usecase?

-- 
Michal Hocko
SUSE Labs
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