Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S262368AbTFBOfb (ORCPT ); Mon, 2 Jun 2003 10:35:31 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S262369AbTFBOfb (ORCPT ); Mon, 2 Jun 2003 10:35:31 -0400 Received: from pc2-cwma1-4-cust86.swan.cable.ntl.com ([213.105.254.86]:28646 "EHLO lxorguk.ukuu.org.uk") by vger.kernel.org with ESMTP id S262368AbTFBOfa (ORCPT ); Mon, 2 Jun 2003 10:35:30 -0400 Subject: Re: [PATCH][ATM] assorted he driver cleanup From: Alan Cox To: chas williams Cc: "David S. Miller" , acme@conectiva.com.br, Linux Kernel Mailing List In-Reply-To: <200306020236.h522a8sG024853@ginger.cmf.nrl.navy.mil> References: <200306020236.h522a8sG024853@ginger.cmf.nrl.navy.mil> Content-Type: text/plain Content-Transfer-Encoding: 7bit Organization: Message-Id: <1054561831.7494.8.camel@dhcp22.swansea.linux.org.uk> Mime-Version: 1.0 X-Mailer: Ximian Evolution 1.2.2 (1.2.2-5) Date: 02 Jun 2003 14:50:32 +0100 Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 779 Lines: 17 On Llu, 2003-06-02 at 03:34, chas williams wrote: > smp machines either. i dont believe the i386 will reorder > read/writes from multiple cpus so in theory it would be safe to > do away with this lock on smp i386's. the only arch that > can reorder (and actually has posted read/writes) is the ia64/sn2. The only i386 platforms that will re-order writes I know of are the Natsemi Geode (which will do magic so that the write order seen by PCI is always ordered), Pentium Pro (fence bug) and IDT Winchip (but only to main memory) - 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/