From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mailman by lists.gnu.org with tmda-scanned (Exim 4.43) id 1L6Vp6-0002aW-8p for qemu-devel@nongnu.org; Sat, 29 Nov 2008 14:49:48 -0500 Received: from exim by lists.gnu.org with spam-scanned (Exim 4.43) id 1L6Vp5-0002aF-7V for qemu-devel@nongnu.org; Sat, 29 Nov 2008 14:49:47 -0500 Received: from [199.232.76.173] (port=42133 helo=monty-python.gnu.org) by lists.gnu.org with esmtp (Exim 4.43) id 1L6Vp4-0002aA-Rc for qemu-devel@nongnu.org; Sat, 29 Nov 2008 14:49:46 -0500 Received: from mx2.redhat.com ([66.187.237.31]:47425) by monty-python.gnu.org with esmtp (Exim 4.60) (envelope-from ) id 1L6Vp4-0008TW-EG for qemu-devel@nongnu.org; Sat, 29 Nov 2008 14:49:46 -0500 Received: from int-mx2.corp.redhat.com (int-mx2.corp.redhat.com [172.16.27.26]) by mx2.redhat.com (8.13.8/8.13.8) with ESMTP id mATJnj0p015946 for ; Sat, 29 Nov 2008 14:49:45 -0500 Message-ID: <49319CE2.3070405@redhat.com> Date: Sat, 29 Nov 2008 21:49:54 +0200 From: Avi Kivity MIME-Version: 1.0 Subject: Re: [Qemu-devel] [RFC 1/2] pci-dma-api-v1 References: <20081127123538.GC10348@random.random> <20081128015602.GA31011@random.random> <20081128185001.GD31011@random.random> <20081128191819.GA18031@shareable.org> In-Reply-To: <20081128191819.GA18031@shareable.org> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Reply-To: qemu-devel@nongnu.org List-Id: qemu-devel.nongnu.org List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: qemu-devel@nongnu.org Cc: Andrea Arcangeli Jamie Lokier wrote: > I think lio_listio is the missing aio_readv/writev. > No, it isn't. A 1MB read divided into 4k pages will have 256 completions. -- I have a truly marvellous patch that fixes the bug which this signature is too narrow to contain.