From: Andi Kleen Subject: Re: [patch 2/8] Implement always-locked bit ops, for memory shared with an SMP hypervisor. Date: Thu, 3 Aug 2006 04:45:38 +0200 Message-ID: <200608030445.38189.ak@suse.de> References: <20060803002510.634721860@xensource.com> <44D144EC.3000205@goop.org> Mime-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: Content-Disposition: inline List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Sender: xen-devel-bounces@lists.xensource.com Errors-To: xen-devel-bounces@lists.xensource.com To: virtualization@lists.osdl.org Cc: akpm@osdl.org, Jeremy Fitzhardinge , xen-devel@lists.xensource.com, linux-kernel@vger.kernel.org, Chris Wright , Ian Pratt , Christoph Lameter List-Id: xen-devel@lists.xenproject.org > Thats a good goal but what about the rest of us who have to maintain > additional forms of bit operations for all architectures. How much is this > burden? I don't think it's that big an issue because most architectures either use always locked bitops already or don't need them because they don't do SMP. So it will be fine with just a asm-generic header that defines them to the normal bitops. Not much burden. -Andi