Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S937897AbWLGBFy (ORCPT ); Wed, 6 Dec 2006 20:05:54 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S937894AbWLGBFy (ORCPT ); Wed, 6 Dec 2006 20:05:54 -0500 Received: from scrub.xs4all.nl ([194.109.195.176]:48480 "EHLO scrub.xs4all.nl" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S937863AbWLGBFx (ORCPT ); Wed, 6 Dec 2006 20:05:53 -0500 Date: Thu, 7 Dec 2006 02:05:24 +0100 (CET) From: Roman Zippel X-X-Sender: roman@scrub.home To: Linus Torvalds cc: Matthew Wilcox , Christoph Lameter , David Howells , akpm@osdl.org, linux-arm-kernel@lists.arm.linux.org.uk, 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: 804 Lines: 24 Hi, On Wed, 6 Dec 2006, Linus Torvalds wrote: > > > To be honest, it'd be much easier if we only defined these operations on > > > atomic_t's. We have all the infrastructure in place for them, and > > > they're fairly well understood. If you need different sizes, I'm OK > > > with an atomic_pointer_t, or whatever. > > > > FWIW Seconded. > > I disagree. > > Any _real_ CPU will simply never care about _anything_ else than just the > size of the datum in question. ..or alignment which a dedicated atomic type would allow to be attached. bye, Roman - 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/