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

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Message-ID: <1443320655.3273.7.camel@edumazet-glaptop2.roam.corp.google.com>
Date:	Sat, 26 Sep 2015 19:24:15 -0700
From:	Eric Dumazet <eric.dumazet@...il.com>
To:	Tolga Ceylan <tolga.ceylan@...il.com>
Cc:	Aaron Conole <aconole@...heb.org>,
	"David S. Miller" <davem@...emloft.net>, netdev@...r.kernel.org
Subject: Re: [PATCH 1/1] net: Add SO_REUSEPORT_LISTEN_OFF socket option as
 drain mode

On Sat, 2015-09-26 at 19:02 -0700, Tolga Ceylan wrote:
> By keeping hiscore/matches as is, I'm trying to keep the hashing consistent.
> Otherwise, this would behave similar to removing a listener which
> drops connections.

Right, this problem will soon disappear when listener rewrite is
complete.

Only SYN packet will have to select a listener.

Then when ACK packet comes, the SYN_RECV will be found in ehash table,
and req->rsk_listener will be used to get the listener that was chosen
at SYN time.


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