Re: [PATCH 08/13] xfs: more rmapbt tests

On Thu, Aug 25, 2016 at 04:29:11PM -0700, Darrick J. Wong wrote:
> More tests for the reverse mapping functionality.
> 
> Signed-off-by: Darrick J. Wong <[email protected]>
> ---
>  tests/xfs/876     |   75 +++++++++++++++++++++++++++++++++++++++++++
>  tests/xfs/876.out |    4 ++
>  tests/xfs/877     |   92 +++++++++++++++++++++++++++++++++++++++++++++++++++++
>  tests/xfs/877.out |   10 ++++++
>  tests/xfs/group   |    2 +
>  5 files changed, 183 insertions(+)
>  create mode 100755 tests/xfs/876
>  create mode 100644 tests/xfs/876.out
>  create mode 100755 tests/xfs/877
>  create mode 100644 tests/xfs/877.out
> 
> 
> diff --git a/tests/xfs/876 b/tests/xfs/876
> new file mode 100755
> index 0000000..7f447c9
> --- /dev/null
> +++ b/tests/xfs/876
> @@ -0,0 +1,75 @@
> +#! /bin/bash
> +# FS QA Test No. 876
> +#
> +# Create a big enough rmapbt that we tickle a fdblocks accounting bug.
> +#
> +#-----------------------------------------------------------------------
> +# Copyright (c) 2016, 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 "$tmp".*
> +}
> +
> +# get standard environment, filters and checks
> +. ./common/rc
> +. ./common/filter
> +. ./common/reflink
> +
> +# real QA test starts here
> +_supported_os Linux
> +_supported_fs xfs
> +_require_scratch
> +_require_xfs_scratch_rmapbt
> +_require_scratch_reflink
> +_require_test_program "punch-alternating"
> +
> +rm -f "$seqres.full"
> +
> +echo "+ create scratch fs"
> +_scratch_mkfs > "$seqres.full" 2>&1
> +
> +echo "+ mount fs image"
> +_scratch_mount
> +blksz="$(stat -f $SCRATCH_MNT -c '%S')"

There's "get_block_size" helper to do this.

> +
> +bt_ptrs=$(( (blksz - 56) / 44 ))
> +bt_recs=$(( (blksz - 56) / 24 ))

It's unclear to me where do these magic numbers come from. Add some
comments?

> +
> +blocks=$((bt_ptrs * bt_recs + 1))
> +_require_fs_space $SCRATCH_MNT $(( (2 * blocks * blksz) * 5 / 4096 ))

_require_fs_space requires the last argument is represented in 1k block
size, so it should be " / 1024" here?

> +len=$((blocks * blksz))
> +
> +echo "+ make some files"
> +$XFS_IO_PROG -f -c "falloc 0 $len" -c "pwrite -S 0x68 -b 1048576 0 $len" $SCRATCH_MNT/f1 >> $seqres.full
> +$XFS_IO_PROG -f -c "falloc 0 $len" -c "pwrite -S 0x68 -b 1048576 0 $len" $SCRATCH_MNT/f2 >> $seqres.full
> +./src/punch-alternating $SCRATCH_MNT/f1 >> "$seqres.full"
> +./src/punch-alternating $SCRATCH_MNT/f2 >> "$seqres.full"
> +
> +# success, all done
> +status=0
> +exit
> diff --git a/tests/xfs/876.out b/tests/xfs/876.out
> new file mode 100644
> index 0000000..96c1970
> --- /dev/null
> +++ b/tests/xfs/876.out
> @@ -0,0 +1,4 @@
> +QA output created by 876
> ++ create scratch fs
> ++ mount fs image
> ++ make some files
> diff --git a/tests/xfs/877 b/tests/xfs/877
> new file mode 100755
> index 0000000..2ad7d30
> --- /dev/null
> +++ b/tests/xfs/877
> @@ -0,0 +1,92 @@
> +#! /bin/bash
> +# FS QA Test No. 877
> +#
> +# Make sure query_range returns -EINVAL if lowkey > highkey.
> +#
> +#-----------------------------------------------------------------------
> +# Copyright (c) 2016, 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".* $metadump_file
> +}
> +
> +# get standard environment, filters and checks
> +. ./common/rc
> +. ./common/filter
> +. ./common/attr

Seems this is not needed.

> +
> +# real QA test starts here
> +_supported_os Linux
> +_supported_fs xfs
> +_require_xfs_scratch_rmapbt
> +_require_command "$XFS_DB_PROG" "xfs_db"
> +_require_xfs_io_command "falloc"
> +_require_xfs_io_command "fpunch"
> +_require_xfs_io_command "fzero"
> +_require_xfs_io_command "fcollapse"
> +_require_xfs_io_command "finsert"
> +
> +rm -f "$seqres.full"
> +
> +echo "Format and mount"
> +_scratch_mkfs > "$seqres.full" 2>&1
> +_scratch_mount
> +blksz=65536
> +blocks=16
> +len=$((blocks * blksz))
> +
> +echo "Create some files"
> +$XFS_IO_PROG -f -c "falloc 0 $len" -c "pwrite -S 0x68 -b 1048576 0 $len" $SCRATCH_MNT/f1 >> $seqres.full
> +
> +echo "Manipulate file"
> +$XFS_IO_PROG -c "fpunch $blksz $blksz" \
> +	-c "fzero $((3 * blksz)) $blksz" \
> +	-c "pwrite -S 0x69 $((5 * blksz)) $blksz" \
> +	-c "fpunch $((7 * blksz)) $blksz" \
> +	-c "fsync" \
> +	-c "pwrite -S 0x70 $((7 * blksz)) $blksz" \
> +	-c "fcollapse $((9 * blksz)) $blksz" \
> +	-c "finsert $((10 * blksz)) $blksz" $SCRATCH_MNT/f1 >> $seqres.full
> +
> +echo "Check file"
> +md5sum $SCRATCH_MNT/f1 | _filter_scratch

I'm a bit confused by the md5sum, f1 is not checked again for
comparison, what's the purpose of this checksum?

Thanks,
Eryu

> +od -tx1 -Ad -c $SCRATCH_MNT/f1 >> $seqres.full
> +
> +echo "Unmount"
> +_scratch_unmount
> +
> +echo "Try a regular fsmap"
> +$XFS_DB_PROG -c 'fsmap' `_scratch_xfs_db_options` >> $seqres.full
> +$XFS_DB_PROG -c 'fsmap 0 5' `_scratch_xfs_db_options` >> $seqres.full
> +
> +echo "Try a bad fsmap"
> +$XFS_DB_PROG -c 'fsmap 5 4' `_scratch_xfs_db_options`
> +
> +# success, all done
> +status=0
> +exit
> diff --git a/tests/xfs/877.out b/tests/xfs/877.out
> new file mode 100644
> index 0000000..4a2242f
> --- /dev/null
> +++ b/tests/xfs/877.out
> @@ -0,0 +1,10 @@
> +QA output created by 877
> +Format and mount
> +Create some files
> +Manipulate file
> +Check file
> +e45c5707fcf6817e914ffb6ce37a0ac7  SCRATCH_MNT/f1
> +Unmount
> +Try a regular fsmap
> +Try a bad fsmap
> +Error 22 while querying fsmap btree.
> diff --git a/tests/xfs/group b/tests/xfs/group
> index 8565204..72580e9 100644
> --- a/tests/xfs/group
> +++ b/tests/xfs/group
> @@ -311,3 +311,5 @@
>  873 auto quick clone fsr
>  874 auto quick clone fsr
>  875 auto quick clone fsr quota
> +876 auto quick rmap clone
> +877 auto quick rmap clone
> 

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