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Date:   Fri, 8 Sep 2017 15:13:50 -0700
From:   Cong Wang <xiyou.wangcong@...il.com>
To:     Haishuang Yan <yanhaishuang@...s.chinamobile.com>
Cc:     "David S. Miller" <davem@...emloft.net>,
        Alexey Kuznetsov <kuznet@....inr.ac.ru>,
        Hideaki YOSHIFUJI <yoshfuji@...ux-ipv6.org>,
        Eric Dumazet <edumazet@...gle.com>,
        Linux Kernel Network Developers <netdev@...r.kernel.org>,
        LKML <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] ipv4: Namespaceify tcp_max_orphans knob

On Wed, Sep 6, 2017 at 8:10 PM, Haishuang Yan
<yanhaishuang@...s.chinamobile.com> wrote:
> Different namespace application might require different maximal number
> of TCP sockets independently of the host.

So after your patch we could have N * net->ipv4.sysctl_tcp_max_orphans
in a whole system, right? This just makes OOM easier to trigger.

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