From mboxrd@z Thu Jan 1 00:00:00 1970 From: Eric Dumazet Subject: Re: [PATCH] tcp: reduce SYN-ACK retrans for TCP_DEFER_ACCEPT Date: Mon, 19 Oct 2009 22:11:43 +0200 Message-ID: <4ADCC7FF.8030309@gmail.com> References: Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: QUOTED-PRINTABLE Cc: "David S. Miller" , netdev@vger.kernel.org To: Julian Anastasov Return-path: Received: from gw1.cosmosbay.com ([212.99.114.194]:39529 "EHLO gw1.cosmosbay.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1757416AbZJSULp (ORCPT ); Mon, 19 Oct 2009 16:11:45 -0400 In-Reply-To: Sender: netdev-owner@vger.kernel.org List-ID: Julian Anastasov a =E9crit : > Change SYN-ACK retransmitting code for the TCP_DEFER_ACCEPT > users to not retransmit SYN-ACKs during the deferring period if > ACK from client was received. The goal is to reduce traffic > during the deferring period. When the period is finished > we continue with sending SYN-ACKs (at least one) but this time > any traffic from client will change the request to established > socket allowing application to terminate it properly. > Also, do not drop acked request if sending of SYN-ACK fails. >=20 > Signed-off-by: Julian Anastasov > --- >=20 Acked-by: Eric Dumazet