From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751751Ab0C2NQj (ORCPT ); Mon, 29 Mar 2010 09:16:39 -0400 Received: from mail.openrapids.net ([64.15.138.104]:33891 "EHLO blackscsi.openrapids.net" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1751477Ab0C2NQg (ORCPT ); Mon, 29 Mar 2010 09:16:36 -0400 Date: Mon, 29 Mar 2010 09:16:34 -0400 From: Mathieu Desnoyers To: Peter Zijlstra , Tejun Heo Cc: Lai Jiangshan , "Paul E. McKenney" , akpm@linux-foundation.org, Ingo Molnar , linux-kernel@vger.kernel.org, dipankar@in.ibm.com, josh@joshtriplett.org, dvhltc@us.ibm.com, niv@us.ibm.com, tglx@linutronix.de, rostedt@goodmis.org, Valdis.Kletnieks@vt.edu, dhowells@redhat.com, eric.dumazet@gmail.com, adobriyan@gmail.com Subject: Re: [RFC patch] extable and module add object is static Message-ID: <20100329131633.GA22730@Krystal> References: <20100327153233.993367557@efficios.com> <20100327224606.GK2343@linux.vnet.ibm.com> <20100327231421.GA4685@Krystal> <20100327232024.GB4685@Krystal> <20100327234314.GL2343@linux.vnet.ibm.com> <20100328000234.GA4924@Krystal> <4BB004ED.5060106@cn.fujitsu.com> <1269852814.12097.167.camel@laptop> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1269852814.12097.167.camel@laptop> X-Editor: vi X-Info: http://www.efficios.com X-Operating-System: Linux/2.6.26-2-686 (i686) X-Uptime: 09:14:52 up 65 days, 15:52, 7 users, load average: 0.04, 0.05, 0.07 User-Agent: Mutt/1.5.18 (2008-05-17) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org * Peter Zijlstra (peterz@infradead.org) wrote: > On Mon, 2010-03-29 at 09:39 +0800, Lai Jiangshan wrote: > > Mathieu Desnoyers wrote: > > > +static int core_object_is_static(void *obj) > > > +{ > > [...] > > > + if (addr >= (unsigned long)__per_cpu_start && > > > + addr <= (unsigned long)__per_cpu_end) > > > + return 1; > > > > This may only correct for UP. > > You may need arch-special codes for SMP. > > > > Tejun has patches for this. > That's great! Tejun, can you point me out to an update version of these patches ? I am particularly interested in being able to know the range of statically defined per-cpu data. Thanks, Mathieu -- Mathieu Desnoyers Operating System Efficiency R&D Consultant EfficiOS Inc. http://www.efficios.com