From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755893Ab2A0HHn (ORCPT ); Fri, 27 Jan 2012 02:07:43 -0500 Received: from mail-we0-f174.google.com ([74.125.82.174]:34436 "EHLO mail-we0-f174.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753010Ab2A0HHl (ORCPT ); Fri, 27 Jan 2012 02:07:41 -0500 Message-ID: <1327648054.2919.28.camel@edumazet-laptop> Subject: Re: [PATCH] netns: fix net_alloc_generic() From: Eric Dumazet To: "Eric W. Biederman" Cc: Pavel Emelyanov , Sjur =?ISO-8859-1?Q?Br=E6ndeland?= , "levinsasha928@gmail.com" , "netdev@vger.kernel.org" , "davem@davemloft.net" , "linux-kernel@vger.kernel.org" , "davej@redhat.com" , "sjurbren@gmail.com" Date: Fri, 27 Jan 2012 08:07:34 +0100 In-Reply-To: References: <1327523631-3480-1-git-send-email-sjur.brandeland@stericsson.com> <1327574498.2500.22.camel@edumazet-HP-Compaq-6005-Pro-SFF-PC> <4F212E7E.2040801@parallels.com> <1327575108.2500.24.camel@edumazet-HP-Compaq-6005-Pro-SFF-PC> <1327644547.2919.11.camel@edumazet-laptop> Content-Type: text/plain; charset="UTF-8" X-Mailer: Evolution 3.2.2- Content-Transfer-Encoding: 8bit Mime-Version: 1.0 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Le jeudi 26 janvier 2012 à 22:54 -0800, Eric W. Biederman a écrit : > Now the common plumbing in net/core/net_namespace.c does count as > complex. The fact we missed such an obvious optimization opportunity > for so long seems to confirm that. This was probably masked by the 13 pointers initial value. I find hard to believe some real setups need more than that !