Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1759998Ab1EOMsg (ORCPT ); Sun, 15 May 2011 08:48:36 -0400 Received: from mx1.redhat.com ([209.132.183.28]:34706 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1756208Ab1EOMsc (ORCPT ); Sun, 15 May 2011 08:48:32 -0400 Date: Sun, 15 May 2011 15:48:18 +0300 From: "Michael S. Tsirkin" To: Rusty Russell Cc: linux-kernel@vger.kernel.org, Carsten Otte , Christian Borntraeger , linux390@de.ibm.com, Martin Schwidefsky , Heiko Carstens , Shirley Ma , lguest@lists.ozlabs.org, virtualization@lists.linux-foundation.org, netdev@vger.kernel.org, linux-s390@vger.kernel.org, kvm@vger.kernel.org, Krishna Kumar , Tom Lendacky , steved@us.ibm.com, habanero@linux.vnet.ibm.com Subject: Re: [PATCH 14/18] virtio: add api for delayed callbacks Message-ID: <20110515124818.GD24932@redhat.com> References: <64d47c628b3fdc0ac156aed4be182933d8bcc0db.1304541919.git.mst@redhat.com> <871v08h0vm.fsf@rustcorp.com.au> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <871v08h0vm.fsf@rustcorp.com.au> User-Agent: Mutt/1.5.21 (2010-09-15) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1012 Lines: 30 On Mon, May 09, 2011 at 03:27:33PM +0930, Rusty Russell wrote: > On Wed, 4 May 2011 23:52:33 +0300, "Michael S. Tsirkin" wrote: > > Add an API that tells the other side that callbacks > > should be delayed until a lot of work has been done. > > Implement using the new used_event feature. > > Since you're going to add a capacity query anyway, why not add the > threshold argument here? I thought that if we keep the API kind of generic there might be more of a chance that future transports will be able to implement it. For example, with an old host we can't commit to a specific index. > > Then the caller can choose how much space it needs. Maybe net and block > will want different things... > > Cheers, > Rusty. Hmm, maybe. OK. -- MST -- 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/