From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1758122AbZFYKAb (ORCPT ); Thu, 25 Jun 2009 06:00:31 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1752210AbZFYKAT (ORCPT ); Thu, 25 Jun 2009 06:00:19 -0400 Received: from mx2.mail.elte.hu ([157.181.151.9]:55419 "EHLO mx2.mail.elte.hu" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751994AbZFYKAS (ORCPT ); Thu, 25 Jun 2009 06:00:18 -0400 Date: Thu, 25 Jun 2009 11:59:53 +0200 From: Ingo Molnar To: "Paul E. McKenney" Cc: linux-kernel@vger.kernel.org, netdev@vger.kernel.org, netfilter-devel@vger.kernel.org, akpm@linux-foundation.org, torvalds@linux-foundation.org, davem@davemloft.net, dada1@cosmosbay.com, zbr@ioremap.net, jeff.chua.linux@gmail.com, paulus@samba.org, laijs@cn.fujitsu.com, jengelh@medozas.de, r000n@r000n.net, benh@kernel.crashing.org, mathieu.desnoyers@polymtl.ca Subject: Re: [PATCH -tip 0/3] expedited "big hammer" RCU grace periods Message-ID: <20090625095953.GC29980@elte.hu> References: <20090624164535.GA13334@linux.vnet.ibm.com> <20090624180303.GE7576@elte.hu> <20090624184423.GK6779@linux.vnet.ibm.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20090624184423.GK6779@linux.vnet.ibm.com> User-Agent: Mutt/1.5.18 (2008-05-17) X-ELTE-SpamScore: -1.5 X-ELTE-SpamLevel: X-ELTE-SpamCheck: no X-ELTE-SpamVersion: ELTE 2.0 X-ELTE-SpamCheck-Details: score=-1.5 required=5.9 tests=BAYES_00 autolearn=no SpamAssassin version=3.2.5 -1.5 BAYES_00 BODY: Bayesian spam probability is 0 to 1% [score: 0.0000] Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org * Paul E. McKenney wrote: > On Wed, Jun 24, 2009 at 08:03:03PM +0200, Ingo Molnar wrote: > > > > * Paul E. McKenney wrote: > > > > > include/linux/rcuclassic.h | 15 ++- > > > > heh, we dont have this file anymore ... as of today, right? :) > > Ah, I was assuming that expedited RCU would happen before removal > of Classic RCU. Our general preference is to zap code. /me stares at: $ git diff --stat -M v2.6.30..v2.6.31-rc1 | tail -1 7743 files changed, 782278 insertions(+), 403162 deletions(-) /me corrects himself: Okay, so the zapping of code is the divine guiding principle we've been following for 15 years. Ending up with a kernel that is 11 million lines of code is a small imperfection of mankind and is to be fixed. Ingo