From mboxrd@z Thu Jan 1 00:00:00 1970 From: Jason Wang Subject: Re: macvtap MAX_SKB_FRAGS fix... Date: Tue, 06 Aug 2013 17:34:46 +0800 Message-ID: <5200C336.20807@redhat.com> References: <20130805.205104.295403081094571911.davem@davemloft.net> <5200B626.9030006@redhat.com> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Cc: netdev@vger.kernel.org, mst@redhat.com To: David Miller Return-path: Received: from mx1.redhat.com ([209.132.183.28]:61253 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755275Ab3HFJf1 (ORCPT ); Tue, 6 Aug 2013 05:35:27 -0400 In-Reply-To: <5200B626.9030006@redhat.com> Sender: netdev-owner@vger.kernel.org List-ID: On 08/06/2013 04:39 PM, Jason Wang wrote: > On 08/06/2013 11:51 AM, David Miller wrote: >> Jason, I want to get that into v3.4.x -stable but it needs a backport >> and I'd rather someone like you who knows the code does it rather >> than I. >> >> The issue seems that be that the arguments to uarg->callback() were >> different back then. >> >> Thanks. > Sure. > > For 3.4.x we need to pick c70aa540c7a9f67add11ad3161096fb95233aa2e > (vhost: zerocopy: poll vq in zerocopy callback) first to let the > backport work. The reason of different arguments is because 3.4.x does > not track DMA failure. So we can just do uarg->callback(uarg); > > Please see the attached patches. Looks like a git send-email is better, will post them. > > Thanks >