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=-8.3 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,NICE_REPLY_A, 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 D9600C00A89 for ; Mon, 2 Nov 2020 17:05:05 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 9CA7820786 for ; Mon, 2 Nov 2020 17:05:05 +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="kGv6qQfT" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727454AbgKBRFE (ORCPT ); Mon, 2 Nov 2020 12:05:04 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:45072 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727438AbgKBRFD (ORCPT ); Mon, 2 Nov 2020 12:05:03 -0500 Received: from mail-qk1-x743.google.com (mail-qk1-x743.google.com [IPv6:2607:f8b0:4864:20::743]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 86740C061A04 for ; Mon, 2 Nov 2020 09:05:03 -0800 (PST) Received: by mail-qk1-x743.google.com with SMTP id s14so12060329qkg.11 for ; Mon, 02 Nov 2020 09:05:03 -0800 (PST) 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=Y38b4I8F8TzbnCJnqVcBeFa6DkdFk2BpIFLm4lvKtuQ=; b=kGv6qQfTyQ811LuGIIGqHI+tXnWLezncZhRnfepg3EyTd/XVYEUG6v/scvXNSkGWBG nz07ukkvu6uorOW8w/Qmf2RD1Ao7b2TOvGq6M205ibw4ugEipfNp55IPcTHJ9UUEkonZ 7vumjtOYXoIFVnUnfYAeWIrNpuqFiSELotOIua7AS0AL8PHaK3sedQvRCOowEgf6NUr/ UlwHf5GRQI5wfsm+UBNhtVDMx/Aw9sY1mjgEYrDjDjZ4bsJB/2/HY3W1iEKdhrx0p22M Qj9KPoBqn/dU6n/JYF+BKuNDYbXAkxqBnXrFYbGburXYR4o/MDSe6e4MOfIsiJ9WHBpJ EGVQ== 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=Y38b4I8F8TzbnCJnqVcBeFa6DkdFk2BpIFLm4lvKtuQ=; b=dypWrQ8HzZ1LQapulf9HsKkhZmZnsPPtGY5I65pt7mN6BbBpz2PiW/l3NJGsUZfW5F VH1M0IFOnI0lg0Fu5uREoiGSrk7R05Cd13rM0cq6JhG7EpOo3hm5D4fuAd5AvD9+phU1 NcUZLvDCuk//fPrLcPaDBIiDb8nGE7mbdf+Mig1hXCvAIjhHhwbQhz6gPtccPuTmaoDF eyw76nh5y7uHIal0bSg9lephmrXa5QTCI17TQvQr/Z5duOK5KxTvXjUqq0mBau5J+KY+ eL1jZt62uHw/MdN0mb0uqwiWN8Hs5H8DNBLSWxaJKm7pKJOerBaGOJcpuh6OQjVf+U5c ii4A== X-Gm-Message-State: AOAM531rqJTAhynaKA73xPvRj0pK5p5m2ASP+/zbX8GrdBIEKbxvptKq WGydnl65R3/qEpGF8Wu9MW2Bui3fKDyQcQ== X-Google-Smtp-Source: ABdhPJzAHrmcW4bpGc+WqnnRZtd1fbVeh5ma2CvPxT2OpHWIJlO0hr+BVcKVSk0QYjPdGKmBpYST2Q== X-Received: by 2002:a37:90c3:: with SMTP id s186mr15944818qkd.130.1604336702740; Mon, 02 Nov 2020 09:05:02 -0800 (PST) Received: from ?IPv6:2620:10d:c0a8:11d9::116a? ([2620:10d:c091:480::1:f39e]) by smtp.gmail.com with ESMTPSA id f21sm4677080qkl.131.2020.11.02.09.05.01 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Mon, 02 Nov 2020 09:05:01 -0800 (PST) Subject: Re: [PATCH v9 08/41] btrfs: disallow NODATACOW in ZONED mode To: Naohiro Aota , linux-btrfs@vger.kernel.org, dsterba@suse.com Cc: hare@suse.com, linux-fsdevel@vger.kernel.org, Johannes Thumshirn References: <4129ba21e887cff5dc707b34920fb825ca1c61a4.1604065695.git.naohiro.aota@wdc.com> From: Josef Bacik Message-ID: Date: Mon, 2 Nov 2020 12:05:00 -0500 User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:78.0) Gecko/20100101 Thunderbird/78.4.0 MIME-Version: 1.0 In-Reply-To: <4129ba21e887cff5dc707b34920fb825ca1c61a4.1604065695.git.naohiro.aota@wdc.com> Content-Type: text/plain; charset=utf-8; format=flowed Content-Language: en-US Content-Transfer-Encoding: 7bit Precedence: bulk List-ID: X-Mailing-List: linux-btrfs@vger.kernel.org On 10/30/20 9:51 AM, Naohiro Aota wrote: > NODATACOW implies overwriting the file data on a device, which is > impossible in sequential required zones. Disable NODATACOW globally with > mount option and per-file NODATACOW attribute by masking FS_NOCOW_FL. > > Signed-off-by: Johannes Thumshirn > Signed-off-by: Naohiro Aota Reviewed-by: Josef Bacik Thanks, Josef