Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1750837AbWC2TLM (ORCPT ); Wed, 29 Mar 2006 14:11:12 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1750836AbWC2TLM (ORCPT ); Wed, 29 Mar 2006 14:11:12 -0500 Received: from palrel10.hp.com ([156.153.255.245]:52418 "EHLO palrel10.hp.com") by vger.kernel.org with ESMTP id S1750831AbWC2TLK (ORCPT ); Wed, 29 Mar 2006 14:11:10 -0500 Date: Wed, 29 Mar 2006 11:11:32 -0800 From: Grant Grundler To: "Boehm, Hans" Cc: Christoph Lameter , "Chen, Kenneth W" , Nick Piggin , Zoltan Menyhart , akpm@osdl.org, linux-kernel@vger.kernel.org, linux-ia64@vger.kernel.org Subject: Re: Fix unlock_buffer() to work the same way as bit_unlock() Message-ID: <20060329191132.GD31225@esmail.cup.hp.com> References: <65953E8166311641A685BDF71D865826A23CF1@cacexc12.americas.cpqcorp.net> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <65953E8166311641A685BDF71D865826A23CF1@cacexc12.americas.cpqcorp.net> User-Agent: Mutt/1.5.11+cvs20060126 Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 993 Lines: 23 On Wed, Mar 29, 2006 at 10:33:57AM -0800, Boehm, Hans wrote: ... > - At user level, the ordering semantics required for something like > pthread_mutex_lock() are unfortunately unclear. If you try to interpret > the current standard, you arrive at the conclusion that > pthread_mutex_lock() basically needs a full barrier, though > pthread_mutex_unlock() doesn't. (See > http://www.hpl.hp.com/techreports/2005/HPL-2005-217.html .) Was the talk you presented at the May 2005 Gelato meeting in Cupertino based on an earlier version of this paper? That was a very good presentation that exposed the deficiencies in the programming models and languages. If the slides and/or a recording are available, that might be helpful here too. thanks, grant - 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/