From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-0.0 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_SBL,URIBL_SBL_A autolearn=no autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id E4099C35280 for ; Wed, 2 Oct 2019 15:52:27 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id C2E0C21848 for ; Wed, 2 Oct 2019 15:52:27 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1729067AbfJBPw0 (ORCPT ); Wed, 2 Oct 2019 11:52:26 -0400 Received: from shards.monkeyblade.net ([23.128.96.9]:33206 "EHLO shards.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1729058AbfJBPw0 (ORCPT ); Wed, 2 Oct 2019 11:52:26 -0400 Received: from localhost (unknown [172.58.43.221]) (using TLSv1 with cipher AES256-SHA (256/256 bits)) (Client did not present a certificate) (Authenticated sender: davem-davemloft) by shards.monkeyblade.net (Postfix) with ESMTPSA id 7844914D67515; Wed, 2 Oct 2019 08:52:23 -0700 (PDT) Date: Wed, 02 Oct 2019 11:52:19 -0400 (EDT) Message-Id: <20191002.115219.1233859945590634038.davem@davemloft.net> To: jiri@resnulli.us Cc: netdev@vger.kernel.org, idosch@mellanox.com, pabeni@redhat.com, edumazet@google.com, petrm@mellanox.com, sd@queasysnail.net, f.fainelli@gmail.com, stephen@networkplumber.org, mlxsw@mellanox.com Subject: Re: [patch net-next 0/3] net: introduce per-netns netdevice notifiers and use them in mlxsw From: David Miller In-Reply-To: <20190930081511.26915-1-jiri@resnulli.us> References: <20190930081511.26915-1-jiri@resnulli.us> X-Mailer: Mew version 6.8 on Emacs 26.1 Mime-Version: 1.0 Content-Type: Text/Plain; charset=us-ascii Content-Transfer-Encoding: 7bit X-Greylist: Sender succeeded SMTP AUTH, not delayed by milter-greylist-4.5.12 (shards.monkeyblade.net [149.20.54.216]); Wed, 02 Oct 2019 08:52:26 -0700 (PDT) Sender: netdev-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org From: Jiri Pirko Date: Mon, 30 Sep 2019 10:15:08 +0200 > From: Jiri Pirko > > Some drivers, like mlxsw, are not interested in notifications coming in > for netdevices from other network namespaces. So introduce per-netns > notifiers and allow to reduce overhead by listening only for > notifications from the same netns. > > This is also a preparation for upcoming patchset "devlink: allow devlink > instances to change network namespace". This resolves deadlock during > reload mlxsw into initial netns made possible by > 328fbe747ad4 ("net: Close race between {un, }register_netdevice_notifier() and setup_net()/cleanup_net()"). Series applied.