From patchwork Mon Oct 15 08:51:17 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Filipe Manana X-Patchwork-Id: 10641319 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 118DE112B for ; Mon, 15 Oct 2018 08:51:22 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id F3FAF295E8 for ; Mon, 15 Oct 2018 08:51:21 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id E69CB29601; Mon, 15 Oct 2018 08:51:21 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-8.0 required=2.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,MAILING_LIST_MULTI,RCVD_IN_DNSWL_HI autolearn=ham version=3.3.1 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 80B55295E8 for ; Mon, 15 Oct 2018 08:51:21 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726319AbeJOQfj (ORCPT ); Mon, 15 Oct 2018 12:35:39 -0400 Received: from mail.kernel.org ([198.145.29.99]:42456 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726273AbeJOQfj (ORCPT ); Mon, 15 Oct 2018 12:35:39 -0400 Received: from localhost.localdomain (bl8-197-74.dsl.telepac.pt [85.241.197.74]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 678432054F; Mon, 15 Oct 2018 08:51:19 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1539593480; bh=51hkWnWenhCMUScsU9qnouBNbmjslad9Q6/Ui1V9Sak=; h=From:To:Cc:Subject:Date:From; b=GnymZym3LRoiqnNTPm/0v/BTw5zYWIbd8BOferFzkMDlqX8mlF5ON54mX00IYEBOF cdIXzKi+zPs1v/hyJC99bnyXBVgqw3EGoKz0gSSqkba3z1lUovsC8mzqFkZKX7GvRP et9VfpYLCU+kb6d2cX2bhTI/c37Lr22wMnWqXGwI= From: fdmanana@kernel.org To: fstests@vger.kernel.org Cc: linux-btrfs@vger.kernel.org, Filipe Manana Subject: [PATCH] generic: test fsync after fallocate on a very small file Date: Mon, 15 Oct 2018 09:51:17 +0100 Message-Id: <20181015085117.5767-1-fdmanana@kernel.org> X-Mailer: git-send-email 2.11.0 Sender: fstests-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: fstests@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP From: Filipe Manana Test that if we have a very small file, with a size smaller than the block size, then fallocate a very small range within the block size but past the file's current size, fsync the file and then power fail, after mounting the filesystem all the file data is there and the file size is correct. This test is motivated by a failure in btrfs where it triggered an assertion when using the no-holes feature, that is, when running with MKFS_OPTIONS="-O no-holes". The btrfs issue is fixed by a patch for the linux kernel titled: "Btrfs: fix assertion on fsync of regular file when using no-holes feature" Signed-off-by: Filipe Manana --- tests/generic/512 | 61 +++++++++++++++++++++++++++++++++++++++++++++++++++ tests/generic/512.out | 9 ++++++++ tests/generic/group | 1 + 3 files changed, 71 insertions(+) create mode 100755 tests/generic/512 create mode 100644 tests/generic/512.out diff --git a/tests/generic/512 b/tests/generic/512 new file mode 100755 index 00000000..f4e13c68 --- /dev/null +++ b/tests/generic/512 @@ -0,0 +1,61 @@ +#! /bin/bash +# SPDX-License-Identifier: GPL-2.0 +# Copyright (C) 2018 SUSE Linux Products GmbH. All Rights Reserved. +# +# FS QA Test No. 512 +# +# Test that if we have a very small file, with a size smaller than the block +# size, then fallocate a very small range within the block size but past the +# file's current size, fsync the file and then power fail, after mounting the +# filesystem all the file data is there and the file size is correct. +# +seq=`basename $0` +seqres=$RESULT_DIR/$seq +echo "QA output created by $seq" +tmp=/tmp/$$ +status=1 # failure is the default! +trap "_cleanup; exit \$status" 0 1 2 3 15 + +_cleanup() +{ + _cleanup_flakey + cd / + rm -f $tmp.* +} + +# get standard environment, filters and checks +. ./common/rc +. ./common/filter +. ./common/dmflakey + +# real QA test starts here +_supported_fs generic +_supported_os Linux +_require_scratch +_require_xfs_io_command "falloc" +_require_dm_target flakey + +rm -f $seqres.full + +_scratch_mkfs >>$seqres.full 2>&1 +_require_metadata_journaling $SCRATCH_DEV +_init_flakey +_mount_flakey + +$XFS_IO_PROG -f \ + -c "pwrite -S 0xb6 0 21" \ + -c "falloc 40 40" \ + -c "fsync" \ + $SCRATCH_MNT/foobar | _filter_xfs_io + +# Simulate a power failure and mount the filesystem. We expect no data loss +# and a correct file size. +_flakey_drop_and_remount + +echo "File content after power failure:" +od -t x1 -A d $SCRATCH_MNT/foobar + +_unmount_flakey + +status=0 +exit diff --git a/tests/generic/512.out b/tests/generic/512.out new file mode 100644 index 00000000..19a0a1b1 --- /dev/null +++ b/tests/generic/512.out @@ -0,0 +1,9 @@ +QA output created by 512 +wrote 21/21 bytes at offset 0 +XXX Bytes, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec) +File content after power failure: +0000000 b6 b6 b6 b6 b6 b6 b6 b6 b6 b6 b6 b6 b6 b6 b6 b6 +0000016 b6 b6 b6 b6 b6 00 00 00 00 00 00 00 00 00 00 00 +0000032 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 +* +0000080 diff --git a/tests/generic/group b/tests/generic/group index 348214ac..d17a0248 100644 --- a/tests/generic/group +++ b/tests/generic/group @@ -514,3 +514,4 @@ 509 auto quick log 510 auto quick log 511 auto quick rw zero +512 auto quick log prealloc