From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752478AbZDERPV (ORCPT ); Sun, 5 Apr 2009 13:15:21 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1752069AbZDERPE (ORCPT ); Sun, 5 Apr 2009 13:15:04 -0400 Received: from e2.ny.us.ibm.com ([32.97.182.142]:58596 "EHLO e2.ny.us.ibm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751748AbZDERPC (ORCPT ); Sun, 5 Apr 2009 13:15:02 -0400 Date: Sun, 5 Apr 2009 10:15:00 -0700 From: "Paul E. McKenney" To: Andi Kleen Cc: Ingo Molnar , Josh Boyer , linux-kernel@vger.kernel.org, akpm@linux-foundation.org, dipankar@in.ibm.com, niv@us.ibm.com, manfred@colorfullife.com, peterz@infradead.org, lethal@linux-sh.org, kernel@wantstofly.org, kyle@mcmartin.ca, deller@gmx.de, davem@davemloft.net, ralf@linux-mips.org, jes@sgi.com, benh@kernel.crashing.org, paulus@samba.org, anton@samba.org Subject: Re: [PATCH -tip] Convert CONFIG_SMP=y powerpc defconfigs to TREE_RCU. Message-ID: <20090405171500.GL6893@linux.vnet.ibm.com> Reply-To: paulmck@linux.vnet.ibm.com References: <3181463559098978317@unknownmsgid> <625fc13d0904040621g7b89cd2cq9681ce80635a65c4@mail.gmail.com> <20090404163149.GC6893@linux.vnet.ibm.com> <20090405101756.GA10490@elte.hu> <20090405103759.GA17934@one.firstfloor.org> <20090405164904.GJ6893@linux.vnet.ibm.com> <20090405170113.GB17934@one.firstfloor.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20090405170113.GB17934@one.firstfloor.org> User-Agent: Mutt/1.5.15+20070412 (2007-04-11) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Sun, Apr 05, 2009 at 07:01:13PM +0200, Andi Kleen wrote: > On Sun, Apr 05, 2009 at 09:49:04AM -0700, Paul E. McKenney wrote: > > On Sun, Apr 05, 2009 at 12:37:59PM +0200, Andi Kleen wrote: > > > > I'd suggest you dont do these dozens of defconfig updates at all - > > > > arch maintainers can do this themselves, once the core kernel > > > > default has been flipped. > > > > > > AFAIK they don't. There's no make updatemyconfigwithdefaultstatementsconfig > > > > My guess is that I would in fact have to send a few patches. But I > > suppose that the real question is "how long should we wait to drop > > Classic RCU once the last arch has changed its defconfig?" I have > > been assuming that we would wait one release cycle. > > I don't think you have to wait, stale entries in defconfigs happen > all the time and Kconfig just asks then. Good point! Thanx, Paul