From mboxrd@z Thu Jan 1 00:00:00 1970 From: Cong Wang Subject: Re: something is wrong in commit 971f10eca1 - tcp: better TCP_SKB_CB layout to reduce cache line misses Date: Mon, 13 Oct 2014 16:59:57 -0700 Message-ID: References: <543AB655.6060603@winsoft.pl> <1413139613.9362.78.camel@edumazet-glaptop2.roam.corp.google.com> Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Cc: Krzysztof Kolasa , netdev , edumazet@gmail.com, David Miller To: Eric Dumazet Return-path: Received: from mail-qc0-f178.google.com ([209.85.216.178]:50915 "EHLO mail-qc0-f178.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752985AbaJMX76 (ORCPT ); Mon, 13 Oct 2014 19:59:58 -0400 Received: by mail-qc0-f178.google.com with SMTP id c9so5969269qcz.9 for ; Mon, 13 Oct 2014 16:59:57 -0700 (PDT) In-Reply-To: <1413139613.9362.78.camel@edumazet-glaptop2.roam.corp.google.com> Sender: netdev-owner@vger.kernel.org List-ID: Probably not related with this bug, but with regarding to the offending commit, what's the point of the memmove() in tcp_v4_rcv() since ip_rcv() already clears IPCB()?