Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752219AbbDAJny (ORCPT ); Wed, 1 Apr 2015 05:43:54 -0400 Received: from mx1.redhat.com ([209.132.183.28]:44888 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750733AbbDAJnx (ORCPT ); Wed, 1 Apr 2015 05:43:53 -0400 Date: Wed, 1 Apr 2015 11:43:46 +0200 From: "Michael S. Tsirkin" To: Rusty Russell Cc: linux-kernel@vger.kernel.org, virtualization@lists.linux-foundation.org Subject: Re: [PATCH v2 1/6] virtio_balloon: transitional interface Message-ID: <20150401113300-mutt-send-email-mst@redhat.com> References: <1427831230-28044-1-git-send-email-mst@redhat.com> <1427831230-28044-2-git-send-email-mst@redhat.com> <87mw2sy0fo.fsf@rustcorp.com.au> <20150401094236-mutt-send-email-mst@redhat.com> <87h9t06w3h.fsf@rustcorp.com.au> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <87h9t06w3h.fsf@rustcorp.com.au> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1195 Lines: 35 On Wed, Apr 01, 2015 at 07:53:14PM +1030, Rusty Russell wrote: > "Michael S. Tsirkin" writes: > > On Wed, Apr 01, 2015 at 02:17:23PM +1030, Rusty Russell wrote: > >> I would leave the device *exactly* as is, ugly structure packing and > >> all. > > > > But why? It's going to be used for years, might as well make it clean? > > Because the only spec which currently exists says to do that. OK but the only spec which currently exists also says it's a legacy only device, so driver must not set VERSION_1. So surely, we can make minor changes when VERSION_1 is set, like we did for other devices. Let me post the latest patches I'm working on, see what you think then. > We do > need a new virtio memballoon spec, but it'll look nothing like this > anyway. > > Cheers, > Rusty. I think it's going to have significantly different semantics, too, so not much value in making that one work with current drivers, right? -- 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/