From mboxrd@z Thu Jan 1 00:00:00 1970 From: Eric Dumazet Subject: Re: bond: take rcu lock in bond_poll_controller Date: Fri, 28 Sep 2018 11:38:35 -0700 Message-ID: References: <20180924192317.wghbs34ld7klqpi6@codemonkey.org.uk> <20180926.201541.2129538853102457012.davem@davemloft.net> <20180928161631.3pab3m2k6zvoemnz@codemonkey.org.uk> <20180928182410.slizlkx6fiwkyb76@codemonkey.org.uk> Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 7bit To: Dave Jones , netdev@vger.kernel.org Return-path: Received: from mail-pg1-f194.google.com ([209.85.215.194]:32962 "EHLO mail-pg1-f194.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726118AbeI2BDl (ORCPT ); Fri, 28 Sep 2018 21:03:41 -0400 Received: by mail-pg1-f194.google.com with SMTP id y18-v6so5086353pge.0 for ; Fri, 28 Sep 2018 11:38:38 -0700 (PDT) In-Reply-To: <20180928182410.slizlkx6fiwkyb76@codemonkey.org.uk> Content-Language: en-US Sender: netdev-owner@vger.kernel.org List-ID: On 09/28/2018 11:24 AM, Dave Jones wrote: > Callers of bond_for_each_slave_rcu are expected to hold the rcu lock, > otherwise a trace like below is shown > > WARNING: CPU: 2 PID: 179 at net/core/dev.c:6567 netdev_lower_get_next_private_rcu+0x34/0x40 > CPU: 2 PID: 179 Comm: kworker/u16:15 Not tainted 4.19.0-rc5-backup+ #1 > > > Suggested-by: Cong Wang > Signed-off-by: Dave Jones > You forgot to change patch title.