Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S966757AbXHIRKg (ORCPT ); Thu, 9 Aug 2007 13:10:36 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S934268AbXHIRKW (ORCPT ); Thu, 9 Aug 2007 13:10:22 -0400 Received: from moutng.kundenserver.de ([212.227.126.188]:57266 "EHLO moutng.kundenserver.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932890AbXHIRKU (ORCPT ); Thu, 9 Aug 2007 13:10:20 -0400 From: Arnd Bergmann To: Chris Snook Subject: Re: [PATCH 0/24] make atomic_read() behave consistently across all architectures Date: Thu, 9 Aug 2007 17:30:16 +0200 User-Agent: KMail/1.9.6 Cc: linux-kernel@vger.kernel.org, linux-arch@vger.kernel.org, torvalds@linux-foundation.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 References: <20070809131423.GA9927@shell.boston.redhat.com> <200708091441.28511.arnd@arndb.de> <46BB24CB.1040405@redhat.com> In-Reply-To: <46BB24CB.1040405@redhat.com> X-Face: >j"dOR3XO=^3iw?0`(E1wZ/&le9!.ok[JrI=S~VlsF~}"P\+jx.GT@=?utf-8?q?=0A=09-oaEG?=,9Ba>v;3>:kcw#yO5?B:l{(Ln.2)=?utf-8?q?=27=7Dfw07+4-=26=5E=7CScOpE=3F=5D=5EXdv=5B/zWkA7=60=25M!DxZ=0A=09?= =?utf-8?q?8MJ=2EU5?="hi+2yT(k`PF~Zt;tfT,i,JXf=x@eLP{7B:"GyA\=UnN) =?utf-8?q?=26=26qdaA=3A=7D-Y*=7D=3A3YvzV9=0A=09=7E=273a=7E7I=7CWQ=5D?=<50*%U-6Ewmxfzdn/CK_E/ouMU(r?FAQG/ev^JyuX.%(By`" =?utf-8?q?L=5F=0A=09H=3Dbj?=)"y7*XOqz|SS"mrZ$`Q_syCd MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit Content-Disposition: inline Message-Id: <200708091730.19024.arnd@arndb.de> X-Provags-ID: V01U2FsdGVkX1+Q1VB0bDVGM2wcIceumY9+3fBfhH/KIqH/Ylm R0oMxpRr9BiriBjDj8k9lA2XsLpwA2aGBx/wsxI9wHAUX4jQWf 4PAwN7R6RuYtDgtbJUuIw== Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 973 Lines: 23 On Thursday 09 August 2007, Chris Snook wrote: > a) chicken and egg: asm-generic/atomic.h depends on definitions in asm/atomic.h Ok, I see. > If you can find a way to reshuffle the code and make it simpler, I personally am > all for it. I'm skeptical that you'll get much to show for the effort. I guess it could be done using more macros or new headers, but I don't see a way that would actually improve the situation. > b) The definitions aren't precisely identical between all architectures, so it > would be a mess of special cases, which gets us right back to where we are now. Why are they not identical? Anything beyond the 32/64 bit difference should be the same afaics, or it might cause more bugs. Arnd <>< - 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/