From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754194Ab3A2Up1 (ORCPT ); Tue, 29 Jan 2013 15:45:27 -0500 Received: from shards.monkeyblade.net ([149.20.54.216]:60069 "EHLO shards.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753985Ab3A2UpY (ORCPT ); Tue, 29 Jan 2013 15:45:24 -0500 Date: Tue, 29 Jan 2013 15:45:23 -0500 (EST) Message-Id: <20130129.154523.725369676171401650.davem@davemloft.net> To: jasowang@redhat.com Cc: mst@redhat.com, netdev@vger.kernel.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH V7 0/3] handle polling errors in vhost/vhost_net From: David Miller In-Reply-To: <1359371119-10208-1-git-send-email-jasowang@redhat.com> References: <1359371119-10208-1-git-send-email-jasowang@redhat.com> X-Mailer: Mew version 6.5 on Emacs 24.1 / Mule 6.0 (HANACHIRUSATO) Mime-Version: 1.0 Content-Type: Text/Plain; charset=us-ascii Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Jason Wang Date: Mon, 28 Jan 2013 19:05:16 +0800 > This is an update version of last version to fix the handling of polling errors > in vhost/vhost_net. > > Currently, vhost and vhost_net ignore polling errors which can lead kernel > crashing when it tries to remove itself from waitqueue after the polling > failure. Fix this by: > > - examing the POLLERR when setting backend and report erros to userspace > - let tun always add to waitqueue in .poll() after the queue is created even if > it was detached. Series applied, thanks.