From mboxrd@z Thu Jan 1 00:00:00 1970 From: David Miller Subject: Re: [PATCH net] xen-netback: correctly schedule rate-limited queues Date: Thu, 27 Jul 2017 09:35:44 -0700 (PDT) Message-ID: <20170727.093544.904406679221141579.davem@davemloft.net> References: <20170621092122.694-1-wei.liu2@citrix.com> <20170622.111648.301858879592718577.davem@davemloft.net> Mime-Version: 1.0 Content-Type: Text/Plain; charset=us-ascii Content-Transfer-Encoding: 7bit Cc: wei.liu2@citrix.com, netdev@vger.kernel.org, xen-devel@lists.xenproject.org, Paul.Durrant@citrix.com To: jean-louis@dupond.be Return-path: Received: from shards.monkeyblade.net ([184.105.139.130]:42650 "EHLO shards.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750981AbdG0Qfr (ORCPT ); Thu, 27 Jul 2017 12:35:47 -0400 In-Reply-To: Sender: netdev-owner@vger.kernel.org List-ID: From: Jean-Louis Dupond Date: Thu, 27 Jul 2017 10:21:56 +0200 > Op 2017-06-22 17:16, schreef David Miller: >> From: Wei Liu >> Date: Wed, 21 Jun 2017 10:21:22 +0100 >> >>> Add a flag to indicate if a queue is rate-limited. Test the flag in >>> NAPI poll handler and avoid rescheduling the queue if true, otherwise >>> we risk locking up the host. The rescheduling will be done in the >>> timer callback function. >>> Reported-by: Jean-Louis Dupond >>> Signed-off-by: Wei Liu >>> Tested-by: Jean-Louis Dupond >> Applied. > > Could this get applied to stable & LTS kernels also? > Seems important enough in my opinion. Sure, queued up.