From mboxrd@z Thu Jan 1 00:00:00 1970 From: Geert Uytterhoeven Subject: Re: [PATCH 9/24] make atomic_read() behave consistently on ia64 Date: Mon, 13 Aug 2007 09:39:55 +0200 (CEST) Message-ID: References: <20070809135107.GA15985@shell.boston.redhat.com> <617E1C2C70743745A92448908E030B2A02213B3C@scsmsx411.amr.corp.intel.com> <46BCC1AF.5050204@redhat.com> <617E1C2C70743745A92448908E030B2A0224C777@scsmsx411.amr.corp.intel.com> <617E1C2C70743745A92448908E030B2A0224C88B@scsmsx411.amr.corp.intel.com> <46BCE9F8.4060009@redhat.com> <617E1C2C70743745A92448908E030B2A0224C8D7@scsmsx411.amr.corp.intel.com> <46BCF19E.5000702@redhat.com> <18109.1084.917429.585224@cargo.ozlabs.ibm.com> <46BFFA71.4080601@redhat.com> Mime-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Cc: Paul Mackerras , Linus Torvalds , "Luck, Tony" , Andreas Schwab , linux-kernel@vger.kernel.org, linux-arch@vger.kernel.org, netdev@vger.kernel.org, akpm@linux-foundation.org, ak@suse.de, heiko.carstens@de.ibm.com, davem@davemloft.net, schwidefsky@de.ibm.com, wensong@linux-vs.org, horms@verge.net.au, wjiang@resilience.com, cfriesen@nortel.com, zlynx@acm.org, rpjday@mindspring.com, jesper.juhl@gmail.com To: Chris Snook Return-path: Received: from dike.telenet-ops.be ([195.130.132.36]:60229 "EHLO dike.telenet-ops.be" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S942650AbXHMJSl (ORCPT ); Mon, 13 Aug 2007 05:18:41 -0400 Received: from adicia.telenet-ops.be (adicia.telenet-ops.be [195.130.132.56]) by dike.telenet-ops.be (Postfix) with ESMTP id 3EFFD30105E for ; Mon, 13 Aug 2007 09:41:07 +0200 (CEST) In-Reply-To: <46BFFA71.4080601@redhat.com> Sender: netdev-owner@vger.kernel.org List-Id: netdev.vger.kernel.org On Mon, 13 Aug 2007, Chris Snook wrote: > Paul Mackerras wrote: > > Chris Snook writes: > > > I'll do this for the whole patchset. Stay tuned for the resubmit. > > > > Could you incorporate Segher's patch to turn atomic_{read,set} into > > asm on powerpc? Segher claims that using asm is really the only > > reliable way to ensure that gcc does what we want, and he seems to > > have a point. > > > > Paul. > > I haven't seen a patch yet. I'm going to resubmit with inline volatile-cast > atomic[64]_[read|set] on all architectures as a reference point, and if anyone > wants to go and implement some of them in assembly, that's between them and > the relevant arch maintainers. I have no problem with (someone else) doing it > in assembly. I just don't think it's necessary and won't let it hold up the > effort to get consistent behavior on all architectures. http://lkml.org/lkml/2007/8/10/470 Gr{oetje,eeting}s, Geert -- Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-m68k.org In personal conversations with technical people, I call myself a hacker. But when I'm talking to journalists I just say "programmer" or something like that. -- Linus Torvalds