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,NICE_REPLY_A, SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,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 F1FEBC388F2 for ; Fri, 6 Nov 2020 16:56:24 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 9E86C217A0 for ; Fri, 6 Nov 2020 16:56:24 +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="xdEJ3w3L" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726139AbgKFQ4Y (ORCPT ); Fri, 6 Nov 2020 11:56:24 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:38568 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725868AbgKFQ4Y (ORCPT ); Fri, 6 Nov 2020 11:56:24 -0500 Received: from mail-qk1-x741.google.com (mail-qk1-x741.google.com [IPv6:2607:f8b0:4864:20::741]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 9C709C0613CF for ; Fri, 6 Nov 2020 08:56:22 -0800 (PST) Received: by mail-qk1-x741.google.com with SMTP id 140so1676455qko.2 for ; Fri, 06 Nov 2020 08:56:22 -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=5DPyLTvKCkZu5/xFD6a34X8cFJzkX/jTMspZzaDlUQY=; b=xdEJ3w3LAKxJ/k6A1HSOj4ibxzb/mFf9TjV0OHVUssWPVpWT0S5+Wt0Vtjyf54jUVh fRDmilERMoxrzC1rjr9008Ou4qGDJfTeplCp3sDcEg2FYv4163//zwGIAO05sgq90sKe j+HfBY8a91ehEGfTtOo9i2l748XN0hfNyutnGDP3CA0Xo4UGF0XLHqQTJVtCZWIqWgG/ wGRQXigjLJlyY4Oq47mI5Pg8MqQQyqBGgHc1KE9NtzeQmQ8apb92ciLmokuoBqz6RW9C 2WxXcl74tFsixTVuOQkvmgIuG9AUy6lW8Ch26E1jVtIHqI5EATbCH9SAgxHYNmcTP1Dp c5UQ== 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=5DPyLTvKCkZu5/xFD6a34X8cFJzkX/jTMspZzaDlUQY=; b=d9MCO3J4P/UjM+Nl0fVo1mi/qVOZ+rUNKQjFg3SRz4A8eIxS3oLV0i+z1RCKviXyFB zAEK9S5LyUf/JBmkYOHd63smL2VpyFUZge3BcAXhrdhFiD31EjotcOcaEkImQ+rHBrHM KZSG1uv/whL0mEMIw+L8FukPlQJrj8s0SxDv7NYz6iZX1QEZDaO/OeXK8ecy33xWgTrf jU9gTBnNGw8+i+XZuLfpryA8+CkMoDwCgC25wSM1PJ+cadS6zUUQvgfmisY9n+n2XGWa Esfb8vzSLNygPCV8ke5arQj65ziMCBWoCeWGuAzM8WR1MIu130wOQcZYIhY9yueDPS0u gYCg== X-Gm-Message-State: AOAM532KGE6CAeJRlOQKuNvLCLqLEa9KmVll7rVbUf9eNJhR5us5HlOh TTNQEV7eLRypuccr0/0o8T7W/g== X-Google-Smtp-Source: ABdhPJxbmBraJRitK4KYTTO6kbkOZY/riJXgxnRTQI6jFzcjNJjdK+QcZv7cjY5nvT7omtDrVVa/OQ== X-Received: by 2002:a37:58c1:: with SMTP id m184mr2456795qkb.305.1604681781870; Fri, 06 Nov 2020 08:56:21 -0800 (PST) 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 y17sm849348qki.134.2020.11.06.08.56.20 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Fri, 06 Nov 2020 08:56:21 -0800 (PST) Subject: Re: [PATCH 2/2] generic: test for non-zero used blocks while writing into a file To: fdmanana@kernel.org, fstests@vger.kernel.org Cc: linux-btrfs@vger.kernel.org, Filipe Manana References: <97125f898446b152fd759eba2f2c5963d3daadc0.1604487838.git.fdmanana@suse.com> From: Josef Bacik Message-ID: Date: Fri, 6 Nov 2020 11:56:19 -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: <97125f898446b152fd759eba2f2c5963d3daadc0.1604487838.git.fdmanana@suse.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: fstests@vger.kernel.org On 11/4/20 6:13 AM, fdmanana@kernel.org wrote: > From: Filipe Manana > > Test that if we keep overwriting an entire file, either with buffered > writes or direct IO writes, the number of used blocks reported by stat(2) > is never zero while the writes and writeback are in progress. > > This is motivated by a bug in btrfs and currently fails on btrfs only. It > is fixed a patchset for btrfs that has the following patches: > > btrfs: fix missing delalloc new bit for new delalloc ranges > btrfs: refactor btrfs_drop_extents() to make it easier to extend > btrfs: fix race when defragging that leads to unnecessary IO > btrfs: update the number of bytes used by an inode atomically > > Signed-off-by: Filipe Manana Reviewed-by: Josef Bacik Thanks, Josef