Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1760669AbXIRRJf (ORCPT ); Tue, 18 Sep 2007 13:09:35 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1759122AbXIRRJ2 (ORCPT ); Tue, 18 Sep 2007 13:09:28 -0400 Received: from smtp2.linux-foundation.org ([207.189.120.14]:59334 "EHLO smtp2.linux-foundation.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1758903AbXIRRJ1 (ORCPT ); Tue, 18 Sep 2007 13:09:27 -0400 Date: Tue, 18 Sep 2007 09:57:15 -0700 From: Andrew Morton To: paulmck@linux.vnet.ibm.com Cc: Peter Zijlstra , Nadia Derbey , Alexey Dobriyan , linux-kernel@vger.kernel.org, Ingo Molnar Subject: Re: 2.6.23-rc6-mm1: IPC: sleeping function called ... Message-Id: <20070918095715.05899d12.akpm@linux-foundation.org> In-Reply-To: <20070918161337.GC8665@linux.vnet.ibm.com> References: <20070918091728.GA6766@localhost.sw.ru> <20070918031723.05689e92.akpm@linux-foundation.org> <46EFA8DC.2020909@bull.net> <20070918033400.495b02dd.akpm@linux-foundation.org> <20070918142451.418b3b51@twins> <20070918161337.GC8665@linux.vnet.ibm.com> X-Mailer: Sylpheed 2.4.1 (GTK+ 2.8.17; x86_64-unknown-linux-gnu) Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 840 Lines: 23 On Tue, 18 Sep 2007 09:13:37 -0700 "Paul E. McKenney" wrote: > On Tue, Sep 18, 2007 at 02:24:51PM +0200, Peter Zijlstra wrote: > > On Tue, 18 Sep 2007 03:34:00 -0700 Andrew Morton > > wrote: > > > > > Well, it was an optimisation. spin_lock() implies rcu_read_lock(). That's > > > a bit dirty and we might choose to not do that. > > > > Not true for the preemptible-rcu work. All such sites should be fixed, > > or at the very least heavily annotated. > > What he said!!! > What he said! How are you going to find all such sites? - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/