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Date:	Thu, 19 Nov 2015 16:15:39 -0800
From:	Tom Herbert <>
To:	Lorenzo Colitti <>
Cc:	Eric Dumazet <>,
	David Miller <>,
	zenczykowski <>,
	Hannes Frederic Sowa <>,
	Stephen Hemminger <>,
	Linux Kernel Network Developers <>,
	Eric Dumazet <>, Erik Kline <>,
	Dmitry Torokhov <>
Subject: Re: Add a SOCK_DESTROY operation to close sockets from userspace

On Thu, Nov 19, 2015 at 4:09 PM, Lorenzo Colitti <> wrote:
> On Fri, Nov 20, 2015 at 9:04 AM, Tom Herbert <> wrote:
>> or to start killing connections based on some arbitrary policy when
>> under memory pressure.
> You mean like the OOM killer starts killing entire processes based on
> some arbitrary policy when under memory pressure? :-)

No, I mean something that kills connections where previously this did
not happen. The fact that this is done at the process level does not
justify that it is a right to at do connections. Besides, if you
really intend to do this then provide a privileged process a means to
close *any* open file descriptor in the system (why stop at TCP
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