From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mailman by lists.gnu.org with tmda-scanned (Exim 4.43) id 1N826I-0006aD-Ig for qemu-devel@nongnu.org; Tue, 10 Nov 2009 20:34:22 -0500 Received: from exim by lists.gnu.org with spam-scanned (Exim 4.43) id 1N826E-0006TA-3k for qemu-devel@nongnu.org; Tue, 10 Nov 2009 20:34:22 -0500 Received: from [199.232.76.173] (port=36833 helo=monty-python.gnu.org) by lists.gnu.org with esmtp (Exim 4.43) id 1N826D-0006Sx-NL for qemu-devel@nongnu.org; Tue, 10 Nov 2009 20:34:17 -0500 Received: from mx20.gnu.org ([199.232.41.8]:60343) by monty-python.gnu.org with esmtps (TLS-1.0:RSA_AES_256_CBC_SHA1:32) (Exim 4.60) (envelope-from ) id 1N826D-0002eb-93 for qemu-devel@nongnu.org; Tue, 10 Nov 2009 20:34:17 -0500 Received: from mail.codesourcery.com ([38.113.113.100]) by mx20.gnu.org with esmtp (Exim 4.60) (envelope-from ) id 1N826B-0004c4-JZ for qemu-devel@nongnu.org; Tue, 10 Nov 2009 20:34:15 -0500 From: Paul Brook Subject: Re: [Qemu-devel] [PATCH] qemu/virtio: make wmb compiler barrier + comments Date: Wed, 11 Nov 2009 01:34:12 +0000 References: <20091026131715.GA25271@redhat.com> In-Reply-To: <20091026131715.GA25271@redhat.com> MIME-Version: 1.0 Content-Type: Text/Plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit Message-Id: <200911110134.13064.paul@codesourcery.com> List-Id: qemu-devel.nongnu.org List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: qemu-devel@nongnu.org Cc: "Michael S. Tsirkin" On Monday 26 October 2009, Michael S. Tsirkin wrote: > wmb must be at least a compiler barrier, even without SMP. Why? Paul