netdev - Re: [PATCH 1/1] net: Add SO_REUSEPORT_LISTEN

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Message-ID: <1447290541.22599.11.camel@edumazet-glaptop2.roam.corp.google.com>
Date:	Wed, 11 Nov 2015 17:09:01 -0800
From:	Eric Dumazet <eric.dumazet@...il.com>
To:	Tom Herbert <tom@...bertland.com>
Cc:	Tolga Ceylan <tolga.ceylan@...il.com>,
	Aaron Conole <aconole@...heb.org>,
	"David S. Miller" <davem@...emloft.net>,
	Linux Kernel Network Developers <netdev@...r.kernel.org>
Subject: Re: [PATCH 1/1] net: Add SO_REUSEPORT_LISTEN_OFF socket option as
 drain mode

On Wed, 2015-11-11 at 10:43 -0800, Eric Dumazet wrote:
> On Wed, 2015-11-11 at 10:23 -0800, Tom Herbert wrote:
> 
> > How about doing this in shutdown called for a listener?
> 
> Seems a good idea, I will try it, thanks !
> 

Arg, I forgot about this shutdown() discussion we had recently
with Oracle guys.

It is currently used in linux to unblock potential threads in accept()
system call.

This would prevent syn_recv sockets to be finally accepted.


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