From mboxrd@z Thu Jan 1 00:00:00 1970 From: David Miller Subject: Re: [PATCH] tcp: fix tcp_shifted_skb() adjustment of lost_cnt_hint for FACK Date: Tue, 14 Feb 2012 14:40:33 -0500 (EST) Message-ID: <20120214.144033.848861752845052421.davem@davemloft.net> References: <1329200528-19718-1-git-send-email-ncardwell@google.com> Mime-Version: 1.0 Content-Type: Text/Plain; charset=us-ascii Content-Transfer-Encoding: 7bit Cc: netdev@vger.kernel.org, ilpo.jarvinen@helsinki.fi, nanditad@google.com, ycheng@google.com, therbert@google.com, subramanian.vijay@gmail.com To: ncardwell@google.com Return-path: Received: from shards.monkeyblade.net ([198.137.202.13]:48506 "EHLO shards.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1757010Ab2BNTkr (ORCPT ); Tue, 14 Feb 2012 14:40:47 -0500 In-Reply-To: <1329200528-19718-1-git-send-email-ncardwell@google.com> Sender: netdev-owner@vger.kernel.org List-ID: From: Neal Cardwell Date: Tue, 14 Feb 2012 01:22:08 -0500 > This commit ensures that lost_cnt_hint is correctly updated in > tcp_shifted_skb() for FACK TCP senders. The lost_cnt_hint adjustment > in tcp_sacktag_one() only applies to non-FACK senders, so FACK senders > need their own adjustment. > > This applies the spirit of 1e5289e121372a3494402b1b131b41bfe1cf9b7f - > except now that the sequence range passed into tcp_sacktag_one() is > correct we need only have a special case adjustment for FACK. > > Signed-off-by: Neal Cardwell Applied, and queued up for -stable, thanks Neil.