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=-5.5 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_HELO_NONE, SPF_PASS,USER_AGENT_SANE_1 autolearn=ham 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 34A6DC5B57D for ; Tue, 2 Jul 2019 05:36:56 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id E845B20881 for ; Tue, 2 Jul 2019 05:36:55 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=mojatatu-com.20150623.gappssmtp.com header.i=@mojatatu-com.20150623.gappssmtp.com header.b="xCU4smhi" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726541AbfGBFgz (ORCPT ); Tue, 2 Jul 2019 01:36:55 -0400 Received: from mail-io1-f67.google.com ([209.85.166.67]:44557 "EHLO mail-io1-f67.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725775AbfGBFgy (ORCPT ); Tue, 2 Jul 2019 01:36:54 -0400 Received: by mail-io1-f67.google.com with SMTP id s7so34173046iob.11 for ; Mon, 01 Jul 2019 22:36:54 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=mojatatu-com.20150623.gappssmtp.com; s=20150623; h=date:from:to:cc:subject:message-id:references:mime-version :content-disposition:in-reply-to:user-agent; bh=TMu7+m+EMtKVDQlNqYQt4TIJXdlcb/bp1RTy7lrABAo=; b=xCU4smhi8YkwW1IUC7cTxNJHgXgDo7cm2L5NdlfY3XmLIUFgVzU2szS6ENhCxJAD12 Dx9NSTYZUDC7eD8eFlAP+O6dsYZ8wzR6QMOe0XJR3ixozMAWtY6Kv8VuqmkGbB5PTGGY ZqCJ0PQK+mbAC1M8ZoZrNmckVic00JGsv3sEgWbkCOomeLI66nUtOIGR/bU9+auh4g3h MU7LgteVAB9p/tXR8zN+2sUq8OrbqdO+sXC6nua7lAMctPqo2MTKygcJPCgELLlXSFwN PULdi3jKVTzqINSTKxmqfebgfw7qv7zGP6QcUd32KvOXkLXbwgdoCpJeg/O6wpQsRSA2 p3MA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:date:from:to:cc:subject:message-id:references :mime-version:content-disposition:in-reply-to:user-agent; bh=TMu7+m+EMtKVDQlNqYQt4TIJXdlcb/bp1RTy7lrABAo=; b=ntU9gTuQrLAjzgcTJuBvrsNhEFi1CXPYz7hRq44rpMxEE9bRER0f120sHQL6jmrG/5 G0A5LvkRcQ6OzYGwYcSQqWcEd2UmTBJAnjgI3RbKTw2usyWff3kwfyxjSzLMOqgOswD9 4qh+QgZDazwRlG8mhpNzsLY+Anmsf0LZw3t3I84BsNlZQcbZp6M2yj+E6GyyIGp4Pinx QDv0i82I3fTtitXLRT1L0FDbDyZd4C1+ZhxDQx3b4oW0012YYeTYooShnCnY9+H3/xj/ SR/aqt0HsGgBQuqKW1kykZ7Ds5mgzBugKyrRhO7K1hKAXo4ftTqvUDf9++1vl+DsLJXm PENw== X-Gm-Message-State: APjAAAU1f+frN5h1kffU+9zA6+s2mKoa4VU8DG90UwFpHXQCcOkyiAx9 6rDEcA8vIWAZ6aeBFgLuOrC+Ng== X-Google-Smtp-Source: APXvYqxklCOsDdV1MV/DUmyJXW0OI6wPEgfwL5w2LWGA/7Ext3ku1cz65ETbe/3ANhe7bFewp78sEg== X-Received: by 2002:a6b:d809:: with SMTP id y9mr26093434iob.301.1562045814232; Mon, 01 Jul 2019 22:36:54 -0700 (PDT) Received: from x220t ([45.72.223.197]) by smtp.gmail.com with ESMTPSA id x22sm10246314ioh.87.2019.07.01.22.36.53 (version=TLS1_2 cipher=ECDHE-RSA-CHACHA20-POLY1305 bits=256/256); Mon, 01 Jul 2019 22:36:53 -0700 (PDT) Date: Tue, 2 Jul 2019 01:36:47 -0400 From: Alexander Aring To: Matteo Croce Cc: netdev@vger.kernel.org, Nicolas Dichtel Subject: Re: [RFC iproute2] netns: add mounting state file for each netns Message-ID: <20190702053620.b7phijsgrhouoxxn@x220t> References: <20190630192933.30743-1-mcroce@redhat.com> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline In-Reply-To: <20190630192933.30743-1-mcroce@redhat.com> User-Agent: NeoMutt/20170113 (1.7.2) Sender: netdev-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org Hi Matteo, On Sun, Jun 30, 2019 at 09:29:33PM +0200, Matteo Croce wrote: > When ip creates a netns, there is a small time interval between the > placeholder file creation in NETNS_RUN_DIR and the bind mount from /proc. > > Add a temporary file named .mounting-$netns which gets deleted after the > bind mount, so watching for delete event matching the .mounting-* name > will notify watchers only after the bind mount has been done. > > Signed-off-by: Matteo Croce thanks for working on it and making my mess better! Would be nice to have it upstream. - Alex