Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S937930AbWLGBhB (ORCPT ); Wed, 6 Dec 2006 20:37:01 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S937927AbWLGBhB (ORCPT ); Wed, 6 Dec 2006 20:37:01 -0500 Received: from smtp.osdl.org ([65.172.181.25]:35210 "EHLO smtp.osdl.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S937925AbWLGBhA (ORCPT ); Wed, 6 Dec 2006 20:37:00 -0500 Date: Wed, 6 Dec 2006 17:36:29 -0800 (PST) From: Linus Torvalds To: Roman Zippel cc: Matthew Wilcox , Christoph Lameter , David Howells , Andrew Morton , linux-kernel@vger.kernel.org, linux-arch@vger.kernel.org Subject: Re: [PATCH] WorkStruct: Implement generic UP cmpxchg() where an arch doesn't support it In-Reply-To: Message-ID: References: <20061206164314.19870.33519.stgit@warthog.cambridge.redhat.com> <20061206190025.GC9959@flint.arm.linux.org.uk> <20061206195820.GA15281@flint.arm.linux.org.uk> <20061206213626.GE3013@parisc-linux.org> <20061206220532.GF3013@parisc-linux.org> MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 682 Lines: 18 On Thu, 7 Dec 2006, Roman Zippel wrote: > > m68060 produces a trap for unaligned atomic access, unfortunately standard > alignment is smaller than this. Umm. on 68060, since it's 32-bit, you'd only have the 32-bit case. Are you saying that you can't do a 32-bit atomic access at any 32-bit aligned boundary? Or are you saying that gcc aligns normal 32-bit entities at 16-bit alignment? Neither of those sound very likely. Linus - 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/