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=-8.2 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_HELO_NONE,SPF_PASS,USER_AGENT_SANE_1 autolearn=unavailable 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 299A2C433E5 for ; Fri, 10 Jul 2020 17:52:29 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id EDF302075D for ; Fri, 10 Jul 2020 17:52:28 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=toxicpanda-com.20150623.gappssmtp.com header.i=@toxicpanda-com.20150623.gappssmtp.com header.b="Ez/bv/5D" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727065AbgGJRw2 (ORCPT ); Fri, 10 Jul 2020 13:52:28 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:47126 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726962AbgGJRw2 (ORCPT ); Fri, 10 Jul 2020 13:52:28 -0400 Received: from mail-qk1-x742.google.com (mail-qk1-x742.google.com [IPv6:2607:f8b0:4864:20::742]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 5E2F6C08C5DC for ; Fri, 10 Jul 2020 10:52:28 -0700 (PDT) Received: by mail-qk1-x742.google.com with SMTP id z63so6090688qkb.8 for ; Fri, 10 Jul 2020 10:52:28 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=toxicpanda-com.20150623.gappssmtp.com; s=20150623; h=subject:to:cc:references:from:message-id:date:user-agent :mime-version:in-reply-to:content-language:content-transfer-encoding; bh=z/EptbW5l5MlTK8iv4lqndCFmdDwMl00L4o7dddZcU0=; b=Ez/bv/5D+7tFESuhn9k7WjcLZnnwQyMLqHBllKwyW1T/oJwT33VKLBet1y6PzkPqTX +pvCDOzktxICTq/ajVhFg5U9GAXmyIhwlPN8ypMWqzfwFdxu5J1M4UpA2vMplZbf9aXa Nbqv3QsDjr4vvaFR4kSuRr1zH2VDG8+t1BoszfZ/g7TPmAFx4jz25YRzRb3dSPh/O1as 69zbh0K9XzvSFERi8oCeuriZhTg7kBSQLcJu7fq6nk5ZukHCgm5m4lxiKNBj9BuMrm++ h3nyPBcChYWVugnARelnAulwgbyKpw4MsLMo5489dkFMpasBpH2OROJU5GCn/FwnsD1v 8MXg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:subject:to:cc:references:from:message-id:date :user-agent:mime-version:in-reply-to:content-language :content-transfer-encoding; bh=z/EptbW5l5MlTK8iv4lqndCFmdDwMl00L4o7dddZcU0=; b=S7PHZT/QEo/8FU7ogAE87/g25Bh8qEGKGdj55rm8rS/bfm3DrsLfIdbxBwOLTUUuPf D5WvkPaifjzprRa38YyxB18nQYj9i622S3ctI/ZdoZKGN1ej/8rbIpDx2lPvmC5yAKmb /fxYo4oSZ5qV08dPy60blSHdgV5iV20KsgHi4ZKPZJOUMTLtEx27RVoVCciRW7lltTu8 E6AQ/dCCOZmbXyxkhZyQ0UpoWP/6mRVtCrdlChAUiKW18hz49atHUaiL/T3z2P4k1qb9 vOSm6Tyf1VvKELEHikxfL8q5Ruo7PDwNGqv1QhVVwoPln+NBTLnvjiR3Z8eyZX5MmGqJ nr8g== X-Gm-Message-State: AOAM532vPLDPHSsM42xKRbkgPzdxN/vDHzWU72I9fsyezGFbDYh9Pj5m b3gzjbEByYHZIKkQYCSLNTRTJQ== X-Google-Smtp-Source: ABdhPJy+fakZnr5H9Yi75eg6ca9yYWo4GVWxwEGvLucV1Llpwri1a+7ByKvnC6Vfo3UmuYN6zLCusg== X-Received: by 2002:a05:620a:1235:: with SMTP id v21mr52811688qkj.454.1594403547564; Fri, 10 Jul 2020 10:52:27 -0700 (PDT) Received: from [192.168.1.45] (cpe-174-109-172-136.nc.res.rr.com. [174.109.172.136]) by smtp.gmail.com with ESMTPSA id o50sm8802506qtc.64.2020.07.10.10.52.26 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Fri, 10 Jul 2020 10:52:26 -0700 (PDT) Subject: Re: [PATCH v2] generic: add a test for umount racing mount To: Boris Burkov , fstests@vger.kernel.org Cc: linux-btrfs@vger.kernel.org References: <20200710171836.127889-1-boris@bur.io> From: Josef Bacik Message-ID: <641e25ca-17bd-034a-9970-2396fe238c81@toxicpanda.com> Date: Fri, 10 Jul 2020 13:52:25 -0400 User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.14; rv:68.0) Gecko/20100101 Thunderbird/68.10.0 MIME-Version: 1.0 In-Reply-To: <20200710171836.127889-1-boris@bur.io> Content-Type: text/plain; charset=utf-8; format=flowed Content-Language: en-US Content-Transfer-Encoding: 7bit Sender: fstests-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: fstests@vger.kernel.org On 7/10/20 1:18 PM, Boris Burkov wrote: > Test if dirtying many inodes (which can delay umount) then > unmounting and quickly mounting again causes the mount to fail. > > A race, which breaks the test in btrfs, is fixed by the patch: > "btrfs: fix mount failure caused by race with umount" > > Signed-off-by: Boris Burkov Reviewed-by: Josef Bacik Thanks, Josef