From patchwork Tue Apr 4 02:23:35 2017 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Filipe Manana X-Patchwork-Id: 9661829 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork.web.codeaurora.org (Postfix) with ESMTP id E5F84602B9 for ; Tue, 4 Apr 2017 14:13:51 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id CCBFC28504 for ; Tue, 4 Apr 2017 14:13:51 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id C18572850E; Tue, 4 Apr 2017 14:13:51 +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=-5.4 required=2.0 tests=BAYES_00, DATE_IN_PAST_06_12, RCVD_IN_DNSWL_HI autolearn=unavailable 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 425A428504 for ; Tue, 4 Apr 2017 14:13:51 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753743AbdDDONs (ORCPT ); Tue, 4 Apr 2017 10:13:48 -0400 Received: from mail.kernel.org ([198.145.29.136]:48600 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752205AbdDDONr (ORCPT ); Tue, 4 Apr 2017 10:13:47 -0400 Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id 0E57920122; Tue, 4 Apr 2017 14:13:46 +0000 (UTC) Received: from debian3.lan (bl12-226-64.dsl.telepac.pt [85.245.226.64]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-SHA256 (128/128 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id E0CC120121; Tue, 4 Apr 2017 14:13:43 +0000 (UTC) From: fdmanana@kernel.org To: fstests@vger.kernel.org Cc: linux-btrfs@vger.kernel.org, Filipe Manana Subject: [PATCH] generic: test for number of bytes used by files after buffered writes Date: Tue, 4 Apr 2017 03:23:35 +0100 Message-Id: <1491272615-3795-1-git-send-email-fdmanana@kernel.org> X-Mailer: git-send-email 2.7.0.rc3 X-Virus-Scanned: ClamAV using ClamSMTP Sender: linux-btrfs-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-btrfs@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP From: Filipe Manana Test that a filesystem's implementation of the stat(2) system call reports correct values for the number of blocks allocated for a file when there are delayed allocations. This test is motivated by a bug in btrfs which is fixed by the following path for the linux kernel: "Btrfs: fix reported number of inode blocks" Signed-off-by: Filipe Manana --- tests/generic/422 | 126 ++++++++++++++++++++++++++++++++++++++++++++++++++ tests/generic/422.out | 41 ++++++++++++++++ tests/generic/group | 1 + 3 files changed, 168 insertions(+) create mode 100755 tests/generic/422 create mode 100644 tests/generic/422.out diff --git a/tests/generic/422 b/tests/generic/422 new file mode 100755 index 0000000..20cd54a --- /dev/null +++ b/tests/generic/422 @@ -0,0 +1,126 @@ +#! /bin/bash +# FS QA Test No. generic/422 +# +# Test that a filesystem's implementation of the stat(2) system call reports +# correct values for the number of blocks allocated for a file when there are +# delayed allocations. +# +#----------------------------------------------------------------------- +# +# Copyright (C) 2017 SUSE Linux Products GmbH. All Rights Reserved. +# Author: Filipe Manana +# +# This program is free software; you can redistribute it and/or +# modify it under the terms of the GNU General Public License as +# published by the Free Software Foundation. +# +# This program is distributed in the hope that it would be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with this program; if not, write the Free Software Foundation, +# Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA +#----------------------------------------------------------------------- +# + +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() +{ + cd / + rm -f $tmp.* +} + +# get standard environment, filters and checks +. ./common/rc +. ./common/filter + +# real QA test starts here +_supported_fs generic +_supported_os Linux +_require_test +_require_scratch +_require_xfs_io_command "falloc" + +rm -f $seqres.full + +_scratch_mkfs >>$seqres.full 2>&1 +_scratch_mount + +$XFS_IO_PROG -f -c "pwrite -S 0xaa 0 64K" $SCRATCH_MNT/foo1 | _filter_xfs_io +$XFS_IO_PROG -f \ + -c "pwrite -S 0xaa 0 64K" \ + -c "truncate 128K" \ + $SCRATCH_MNT/foo2 | _filter_xfs_io +$XFS_IO_PROG -f \ + -c "falloc -k 0 128K" \ + -c "pwrite -S 0xaa 0 64K" \ + $SCRATCH_MNT/foo3 | _filter_xfs_io +touch $SCRATCH_MNT/foo4 + +# Make sure everything done so far is durably persisted. +sync + +# Now overwrite the extent of the first file. +$XFS_IO_PROG -c "pwrite -S 0xff 0 64K" $SCRATCH_MNT/foo1 | _filter_xfs_io + +# Write to a hole of the second file. +$XFS_IO_PROG -c "pwrite -S 0xff 64K 64K" $SCRATCH_MNT/foo2 | _filter_xfs_io +# Write again to the same location, just to test that the fs will not account +# the same write twice. +$XFS_IO_PROG -c "pwrite -S 0x20 64K 64K" $SCRATCH_MNT/foo2 | _filter_xfs_io + +# Write beyond eof of the third file into the pre-allocated extent. +$XFS_IO_PROG -c "pwrite -S 0xff 64K 64K" $SCRATCH_MNT/foo3 | _filter_xfs_io + +# Do a buffered write immediately followed by a direct IO write, without a +# fsync in between, just to test that page invalidation does not lead to an +# incorrect number of file blocks reported. +$XFS_IO_PROG -c "pwrite -S 0xab 0 64K" $SCRATCH_MNT/foo4 | _filter_xfs_io +$XFS_IO_PROG -d -c "pwrite -S 0xef 0 64K" $SCRATCH_MNT/foo4 | _filter_xfs_io + +echo +echo "Before writeback" +echo + +echo "Space used by file foo1:" +du -h $SCRATCH_MNT/foo1 | _filter_scratch + +echo "Space used by file foo2:" +du -h $SCRATCH_MNT/foo2 | _filter_scratch + +echo "Space used by file foo3:" +du -h $SCRATCH_MNT/foo3 | _filter_scratch + +echo "Space used by file foo4:" +du -h $SCRATCH_MNT/foo4 | _filter_scratch + +sync + +# We expect the same file sizes reported by 'du' after writeback finishes. +echo +echo "After writeback" +echo + +echo "Space used by file foo1:" +du -h $SCRATCH_MNT/foo1 | _filter_scratch + +echo "Space used by file foo2:" +du -h $SCRATCH_MNT/foo2 | _filter_scratch + +echo "Space used by file foo3:" +du -h $SCRATCH_MNT/foo3 | _filter_scratch + +echo "Space used by file foo4:" +du -h $SCRATCH_MNT/foo4 | _filter_scratch + +status=0 +exit diff --git a/tests/generic/422.out b/tests/generic/422.out new file mode 100644 index 0000000..3696088 --- /dev/null +++ b/tests/generic/422.out @@ -0,0 +1,41 @@ +QA output created by 422 +wrote 65536/65536 bytes at offset 0 +XXX Bytes, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec) +wrote 65536/65536 bytes at offset 0 +XXX Bytes, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec) +wrote 65536/65536 bytes at offset 0 +XXX Bytes, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec) +wrote 65536/65536 bytes at offset 0 +XXX Bytes, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec) +wrote 65536/65536 bytes at offset 65536 +XXX Bytes, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec) +wrote 65536/65536 bytes at offset 65536 +XXX Bytes, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec) +wrote 65536/65536 bytes at offset 65536 +XXX Bytes, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec) +wrote 65536/65536 bytes at offset 0 +XXX Bytes, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec) +wrote 65536/65536 bytes at offset 0 +XXX Bytes, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec) + +Before writeback + +Space used by file foo1: +64K SCRATCH_MNT/foo1 +Space used by file foo2: +128K SCRATCH_MNT/foo2 +Space used by file foo3: +128K SCRATCH_MNT/foo3 +Space used by file foo4: +64K SCRATCH_MNT/foo4 + +After writeback + +Space used by file foo1: +64K SCRATCH_MNT/foo1 +Space used by file foo2: +128K SCRATCH_MNT/foo2 +Space used by file foo3: +128K SCRATCH_MNT/foo3 +Space used by file foo4: +64K SCRATCH_MNT/foo4 diff --git a/tests/generic/group b/tests/generic/group index 3c7c5e4..d747385 100644 --- a/tests/generic/group +++ b/tests/generic/group @@ -424,3 +424,4 @@ 419 auto quick encrypt 420 auto quick punch 421 auto quick encrypt dangerous +422 auto quick