On Wed, Dec 17, 2014 at 11:51:08AM +0800, Liu Bo wrote:
> This is a regression test of
> 'commit fcebe4562dec ("Btrfs: rework qgroup accounting")'
>
> It can produce qgroup related warnings.
The commit is in kernel since May 13, but I still saw warnings on
3.18+ kernel and test fails too. Is this expected?
>
> Signed-off-by: Liu Bo <bo.li.liu@xxxxxxxxxx>
> ---
> v2: - use new seq number 017 instead 080
> - use 'cloner' to get shared extents
> - use XFS_IO_PROG instead
>
> tests/btrfs/017 | 74 +++++++++++++++++++++++++++++++++++++++++++++++++++++
> tests/btrfs/017.out | 3 +++
> tests/btrfs/group | 1 +
> 3 files changed, 78 insertions(+)
> create mode 100755 tests/btrfs/017
> create mode 100644 tests/btrfs/017.out
>
> diff --git a/tests/btrfs/017 b/tests/btrfs/017
> new file mode 100755
> index 0000000..fc0e671
> --- /dev/null
> +++ b/tests/btrfs/017
> @@ -0,0 +1,74 @@
> +#! /bin/bash
> +# FS QA Test No. 017
> +#
> +# Regression of 'commit fcebe4562dec ("Btrfs: rework qgroup accounting")',
> +# this will throw a warning into dmesg.
> +#
> +#-----------------------------------------------------------------------
> +# Copyright (c) 2014 Liu Bo. 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 -f $tmp.*
> +}
> +
> +# get standard environment, filters and checks
> +. ./common/rc
> +. ./common/filter
> +
> +# real QA test starts here
> +
> +_need_to_be_root
> +_supported_fs btrfs
> +_supported_os Linux
> +_require_scratch
> +_require_cloner
> +
Trailing whitespace here.
> +run_check _scratch_mkfs "-b 1g --nodesize 4096"
Usually this can be done by _scratch_mkfs_sized, but it doesn't accept
additional mkfs options, given that usually scratch dev is bigger than
1G, so I think using _scratch_mkfs is fine here.
> +run_check _scratch_mount
> +
> +run_check $XFS_IO_PROG -f -d -c "pwrite 0 8K" $SCRATCH_MNT/foo
> +
> +_run_btrfs_util_prog subvolume snapshot $SCRATCH_MNT $SCRATCH_MNT/snap
> +
> +run_check $CLONER_PROG -s 0 -d 0 -l 8192 $SCRATCH_MNT/foo $SCRATCH_MNT/foo-reflink
> +run_check $CLONER_PROG -s 0 -d 0 -l 8192 $SCRATCH_MNT/foo $SCRATCH_MNT/snap/foo-reflink
> +run_check $CLONER_PROG -s 0 -d 0 -l 8192 $SCRATCH_MNT/foo $SCRATCH_MNT/snap/foo-reflink2
> +
> +_run_btrfs_util_prog quota enable $SCRATCH_MNT
> +_run_btrfs_util_prog quota rescan -w $SCRATCH_MNT
> +
> +rm -fr $SCRATCH_MNT/* >/dev/null 2>&1
> +
> +_run_btrfs_util_prog filesystem sync $SCRATCH_MNT
> +
> +$BTRFS_UTIL_PROG qgroup show $SCRATCH_MNT | $SED_PROG -n '/[0-9]/p' | $AWK_PROG '{print $2" "$3}'
It'd be better to add some comments to explain the test steps, the
kernel commit is big and it's not obvious to me why these magic
steps could trigger kernel warning :)
Anyway,
Reviewed-by: Eryu Guan <eguan@xxxxxxxxxx>
Thanks,
Eryu
> +
> +# success, all done
> +status=0
> +exit
> diff --git a/tests/btrfs/017.out b/tests/btrfs/017.out
> new file mode 100644
> index 0000000..e25e631
> --- /dev/null
> +++ b/tests/btrfs/017.out
> @@ -0,0 +1,3 @@
> +QA output created by 017
> +4096 4096
> +4096 4096
> diff --git a/tests/btrfs/group b/tests/btrfs/group
> index abb2fe4..e29999b 100644
> --- a/tests/btrfs/group
> +++ b/tests/btrfs/group
> @@ -19,6 +19,7 @@
> 014 auto balance
> 015 auto quick snapshot
> 016 auto quick send
> +017 auto quick qgroup
> 018 auto quick subvol
> 019 auto quick send
> 020 auto quick replace
> --
> 1.8.2.1
>
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