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Date: Tue, 16 May 2017 00:33:31 +0800
From: Eryu Guan <eguan@...hat.com>
To: "Darrick J. Wong" <darrick.wong@...cle.com>
Cc: Theodore Ts'o <tytso@....edu>, fstests <fstests@...r.kernel.org>,
linux-ext4 <linux-ext4@...r.kernel.org>
Subject: Re: [PATCH] ext4: fsmap tests
On Fri, May 12, 2017 at 08:58:13PM -0700, Darrick J. Wong wrote:
> Test the GETFSMAP ioctl against ext4.
>
> Signed-off-by: Darrick J. Wong <darrick.wong@...cle.com>
> ---
> common/ext4 | 11 +++++++
> tests/ext4/700 | 86 ++++++++++++++++++++++++++++++++++++++++++++++++++++
> tests/ext4/700.out | 7 ++++
> tests/ext4/701 | 65 +++++++++++++++++++++++++++++++++++++++
> tests/ext4/701.out | 3 ++
> tests/ext4/702 | 66 ++++++++++++++++++++++++++++++++++++++++
> tests/ext4/702.out | 4 ++
> tests/ext4/group | 3 ++
> 8 files changed, 245 insertions(+)
> create mode 100644 common/ext4
> create mode 100755 tests/ext4/700
> create mode 100644 tests/ext4/700.out
> create mode 100755 tests/ext4/701
> create mode 100644 tests/ext4/701.out
> create mode 100755 tests/ext4/702
> create mode 100644 tests/ext4/702.out
>
> diff --git a/common/ext4 b/common/ext4
> new file mode 100644
> index 0000000..1528c86
> --- /dev/null
> +++ b/common/ext4
> @@ -0,0 +1,11 @@
> +#
> +# ext4 specific common functions
> +#
> +
> +_ext4_sbfield()
> +{
> + field="$1"
> + dev="$2"
> +
> + dumpe2fs -h $dev 2>/dev/null | grep "^$field" | sed -e "s/^.*$field:[[:space:]]*\(.*\)$/\1/g"
$DUMPE2FS_PROG?
> +}
> diff --git a/tests/ext4/700 b/tests/ext4/700
> new file mode 100755
> index 0000000..64c86ed
> --- /dev/null
> +++ b/tests/ext4/700
> @@ -0,0 +1,86 @@
> +#! /bin/bash
> +# FS QA Test No. 700
> +#
> +# Check that getfsmap reports the BG metadata we're expecting.
> +#
> +#-----------------------------------------------------------------------
> +# Copyright (c) 2017, Oracle and/or its affiliates. All Rights Reserved.
> +#
> +# 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"
> +
> +here=`pwd`
> +tmp=/tmp/$$
> +status=1 # failure is the default!
> +trap "_cleanup; exit \$status" 0 1 2 3 15
> +
> +_cleanup()
> +{
> + cd /
> + rm -rf "$tmp".* $TEST_DIR/fsmap $TEST_DIR/testout
rm -rf looks dangerous, there're no directories, rm -f should just work,
and 'testout' isn't used in this test.
> +}
> +
> +# get standard environment, filters and checks
> +. ./common/rc
> +. ./common/filter
> +. ./common/ext4
Hmm, I think we should source common/ext4 in common/rc, as where we
source common/{xfs,btrfs}, not in individual test.
> +
> +# real QA test starts here
> +_supported_os Linux
> +_supported_fs ext4
> +_require_scratch
> +_require_xfs_io_command "fsmap"
> +
> +rm -f "$seqres.full"
> +
> +echo "Format and mount"
> +_scratch_mkfs > "$seqres.full" 2>&1
> +blocks=$(_ext4_sbfield "Block count" $SCRATCH_DEV)
> +blocks_per_group=$(_ext4_sbfield "Blocks per group" $SCRATCH_DEV)
> +bg_per_flex=$(_ext4_sbfield "Flex block group size" $SCRATCH_DEV)
> +bgs=$(( (blocks + blocks_per_group - 1) / blocks_per_group ))
> +if [ -z "$bg_per_flex" ]; then
> + fbg=$((bgs / bg_per_flex))
> +else
> + fbg=$bgs
> +fi
I don't see how these vars are used, blocks, blocks_per_ground, bgs and
fbg, test still passes even if I comment the whole code block out.
Missed some checks on these vars?
> +_scratch_mount
> +
> +echo "Get fsmap" | tee -a $seqres.full
> +$XFS_IO_PROG -c 'fsmap' $SCRATCH_MNT > $TEST_DIR/fsmap
> +cat $TEST_DIR/fsmap >> $seqres.full
> +
> +echo "Check fs metadata" | tee -a $seqres.full
> +x=$(grep -c 'static fs metadata' $TEST_DIR/fsmap)
> +test $x -gt 0 || echo "No fs metadata?"
> +
> +echo "Check block bitmap" | tee -a $seqres.full
> +x=$(grep -c 'special 102:1' $TEST_DIR/fsmap)
> +test $x -gt 0 || echo "No block bitmaps?"
> +
> +echo "Check inode bitmap" | tee -a $seqres.full
> +x=$(grep -c 'special 102:2' $TEST_DIR/fsmap)
> +test $x -gt 0 || echo "No inode bitmaps?"
> +
> +echo "Check inodes" | tee -a $seqres.full
> +x=$(grep -c 'inodes' $TEST_DIR/fsmap)
> +test $x -gt 0 || echo "No inodes?"
> +
> +# success, all done
> +status=0
> +exit
> diff --git a/tests/ext4/700.out b/tests/ext4/700.out
> new file mode 100644
> index 0000000..3984319
> --- /dev/null
> +++ b/tests/ext4/700.out
> @@ -0,0 +1,7 @@
> +QA output created by 700
> +Format and mount
> +Get fsmap
> +Check fs metadata
> +Check block bitmap
> +Check inode bitmap
> +Check inodes
> diff --git a/tests/ext4/701 b/tests/ext4/701
> new file mode 100755
> index 0000000..c50bbf2
> --- /dev/null
> +++ b/tests/ext4/701
> @@ -0,0 +1,65 @@
> +#! /bin/bash
> +# FS QA Test No. 701
> +#
> +# Populate filesystem, check that fsmap -n10000 matches fsmap -n1.
> +#
> +#-----------------------------------------------------------------------
> +# Copyright (c) 2017, Oracle and/or its affiliates. All Rights Reserved.
> +#
> +# 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"
> +
> +here=`pwd`
> +tmp=/tmp/$$
> +status=1 # failure is the default!
> +trap "_cleanup; exit \$status" 0 1 2 3 15
> +
> +_cleanup()
> +{
> + cd /
> + rm -rf "$tmp".* $TEST_DIR/a $TEST_DIR/b
> +}
> +
> +# get standard environment, filters and checks
> +. ./common/rc
> +. ./common/filter
> +. ./common/populate
> +
> +# real QA test starts here
> +_supported_os Linux
> +_supported_fs ext4
> +_require_scratch
> +_require_populate_commands
> +_require_xfs_io_command "fsmap"
> +
> +rm -f "$seqres.full"
> +
> +echo "Format and mount"
> +_scratch_populate_cached nofill > $seqres.full 2>&1
> +
> +echo "Compare fsmap" | tee -a $seqres.full
> +_scratch_mount
> +$XFS_IO_PROG -c 'fsmap -n 65536' $SCRATCH_MNT | grep -v 'EXT:' > $TEST_DIR/a
> +$XFS_IO_PROG -c 'fsmap -n 1' $SCRATCH_MNT | grep -v 'EXT:' > $TEST_DIR/b
> +cat $TEST_DIR/a $TEST_DIR/b >> $seqres.full
> +
> +diff -uw $TEST_DIR/a $TEST_DIR/b
> +
> +# success, all done
> +status=0
> +exit
> diff --git a/tests/ext4/701.out b/tests/ext4/701.out
> new file mode 100644
> index 0000000..41ef1c6
> --- /dev/null
> +++ b/tests/ext4/701.out
> @@ -0,0 +1,3 @@
> +QA output created by 701
> +Format and mount
> +Compare fsmap
> diff --git a/tests/ext4/702 b/tests/ext4/702
> new file mode 100755
> index 0000000..d5e15ef
> --- /dev/null
> +++ b/tests/ext4/702
> @@ -0,0 +1,66 @@
> +#! /bin/bash
> +# FS QA Test No. 702
> +#
> +# Check that getfsmap reports external log devices
> +#
> +#-----------------------------------------------------------------------
> +# Copyright (c) 2017, Oracle and/or its affiliates. All Rights Reserved.
> +#
> +# 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"
> +
> +here=`pwd`
> +tmp=/tmp/$$
> +status=1 # failure is the default!
> +trap "_cleanup; exit \$status" 0 1 2 3 15
> +
> +_cleanup()
> +{
> + cd /
> + rm -rf "$tmp".* $TEST_DIR/fsmap $TEST_DIR/testout
> +}
> +
> +# get standard environment, filters and checks
> +. ./common/rc
> +. ./common/filter
> +
> +# real QA test starts here
> +_supported_os Linux
> +_supported_fs ext4
> +_require_logdev
ext4 has no SCRATCH_LOGDEV support yet. Jeff added such support to ext4
in his patchset, but I haven't looked at that patch closely yet..
> +_require_scratch
> +_require_xfs_io_command "fsmap"
> +
> +rm -f "$seqres.full"
> +
> +echo "Format and mount"
> +_scratch_mkfs > "$seqres.full" 2>&1
> +_scratch_mount
> +
> +echo "Get fsmap" | tee -a $seqres.full
> +$XFS_IO_PROG -c 'fsmap' $SCRATCH_MNT >> $seqres.full
> +$XFS_IO_PROG -c 'fsmap' $SCRATCH_MNT | tr '[]()' ' ' > $TEST_DIR/fsmap
> +
> +echo "Check device field of FS metadata and journalling log"
> +data_dev=$(grep 'static fs metadata' $TEST_DIR/fsmap | head -n 1 | awk '{print $2}')
> +journal_dev=$(grep 'journalling log' $TEST_DIR/fsmap | head -n 1 | awk '{print $2}')
> +test "${data_dev}" != "${journal_dev}" || echo "data ${data_dev} journal ${journal_dev}?"
Test passed even if there's no LOGDEV support for ext4, as long as I
have SCRATCH_LOGDEV set and USE_EXTERNAL set to yes. But journal_dev is
empty in this case, apparently "8:34" != "" :)
Thanks,
Eryu
> +
> +# success, all done
> +status=0
> +exit
> diff --git a/tests/ext4/702.out b/tests/ext4/702.out
> new file mode 100644
> index 0000000..1d3b7ef
> --- /dev/null
> +++ b/tests/ext4/702.out
> @@ -0,0 +1,4 @@
> +QA output created by 702
> +Format and mount
> +Get fsmap
> +Check device field of FS metadata and journalling log
> diff --git a/tests/ext4/group b/tests/ext4/group
> index 664c059..9007adf 100644
> --- a/tests/ext4/group
> +++ b/tests/ext4/group
> @@ -37,3 +37,6 @@
> 306 auto rw resize quick
> 307 auto ioctl rw defrag
> 308 auto ioctl rw prealloc quick defrag
> +700 auto quick fsmap
> +701 auto quick fsmap
> +702 auto quick fsmap
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