On Wed, Oct 23, 2024 at 04:16:02PM +0800, Chao Yu wrote:
> metadata of compressed inode should always be consistent after file
> compression, reservation, releasement and decompression, let's add
> a testcase to check it.
>
> Cc: Jaegeuk Kim <jaegeuk@xxxxxxxxxx>
> Cc: Qi Han <hanqi@xxxxxxxx>
> Signed-off-by: Chao Yu <chao@xxxxxxxxxx>
> ---
> v2:
> - add _fixed_by_kernel_commit()
> - code cleanup
> - add error handling for _scratch_mkfs()
> tests/f2fs/007 | 116 +++++++++++++++++++++++++++++++++++++++++++++
> tests/f2fs/007.out | 4 ++
> 2 files changed, 120 insertions(+)
> create mode 100755 tests/f2fs/007
> create mode 100644 tests/f2fs/007.out
>
> diff --git a/tests/f2fs/007 b/tests/f2fs/007
> new file mode 100755
> index 00000000..8979c21c
> --- /dev/null
> +++ b/tests/f2fs/007
> @@ -0,0 +1,116 @@
> +#! /bin/bash
> +# SPDX-License-Identifier: GPL-2.0
> +# Copyright (c) 2024 Oppo. All Rights Reserved.
> +#
> +# FS QA Test No. f2fs/007
> +#
> +# This is a regression test to check whether compressed metadata
> +# can become inconsistent after file compression, reservation
> +# releasement, and decompression.
> +#
> +. ./common/preamble
> +_begin_fstest auto quick rw compress
> +
> +_fixed_by_kernel_commit xxxxxxxxxxxx \
> + "f2fs: compress: fix inconsistent update of i_blocks in release_compress_blocks and reserve_compress_blocks"
> +
> +testfile_prefix=$SCRATCH_MNT/testfile
> +fio_config=$tmp.fio
> +
> +cat >$fio_config <<EOF
> +[write_compressed_data_30]
> +name=mytest
> +ioengine=psync
> +rw=write
> +direct=0
> +bs=1M
> +filesize=1M
> +numjobs=1
> +filename=${testfile_prefix}30
> +buffer_compress_percentage=30
> +
> +[write_compressed_data_60]
> +name=mytest
> +ioengine=psync
> +rw=write
> +direct=0
> +bs=1M
> +filesize=1M
> +numjobs=1
> +filename=${testfile_prefix}60
> +buffer_compress_percentage=60
> +
> +[write_compressed_data_90]
> +name=mytest
> +ioengine=psync
> +rw=write
> +direct=0
> +bs=1M
> +filesize=1M
> +numjobs=1
> +filename=${testfile_prefix}90
> +buffer_compress_percentage=90
> +EOF
> +
> +_require_scratch
Better to move _require_scratch before "testfile_prefix=$SCRATCH_MNT/testfile".
Due to we'd better to make sure there's $SCRATCH_MNT, before using it.
> +_require_fio $fio_config
> +_scratch_mkfs "-f -O extra_attr,compression" >> $seqres.full || _fail "mkfs failed"
> +_scratch_mount "-o compress_mode=user,compress_extension=*" >> $seqres.full
> +
> +echo -e "Run fio to initialize file w/ specified compress ratio" >> $seqres.full
> +cat $fio_config >> $seqres.full
> +$FIO_PROG $fio_config >> $seqres.full
> +_scratch_unmount
> +
> +# force to repaire if filesystem is corrupted
> +export FSCK_OPTIONS="-f $FSCK_OPTIONS"
> +
> +for i in 30 60 90; do
> + testfile=$testfile_prefix$i
> +
> + _scratch_mount "-o compress_mode=user" >> $seqres.full
> + $F2FS_IO_PROG compress $testfile >> $seqres.full
> + cblocks=`$F2FS_IO_PROG get_cblocks $testfile`
> + echo "compression ratio is: "$cblocks" / 256"
> +
> + _scratch_unmount
> +
> + # 1. check after compression
> + _check_scratch_fs
> + if [ $? -ne 0 ]; then
> + _fail "filesystem becomes corrupted after compress"
> + fi
> +
> + _scratch_mount >> $seqres.full
> + $F2FS_IO_PROG release_cblocks $testfile >> $seqres.full
> + _scratch_unmount
> +
> + # 2. check after releasement
> + _check_scratch_fs
> + if [ $? -ne 0 ]; then
> + _fail "filesystem becomes corrupted after release_cblocks"
The _fail is not necessary, due to _check_scratch_fs will do "exit 1"
if it find a corruption. If you need some message, maybe echo it before
calling _check_scratch_fs?
> + fi
> +
> + _scratch_mount >> $seqres.full
> + $F2FS_IO_PROG reserve_cblocks $testfile >> $seqres.full
> + _scratch_unmount
> +
> + # 3. check after rservation
> + _check_scratch_fs
> + if [ $? -ne 0 ]; then
> + _fail "filesystem becomes corrupted after reserve_cblocks"
> + fi
Same as above
> +
> + _scratch_mount "-o compress_mode=user" >> $seqres.full
> + $F2FS_IO_PROG decompress $testfile >> $seqres.full
> + _scratch_unmount
> +
> + # 4. check after decompression
> + _check_scratch_fs
> + if [ $? -ne 0 ]; then
> + _fail "filesystem becomes corrupted after decompress"
> + fi
Same as above.
Thanks,
Zorro
> +done
> +
> +status=0
> +exit
> diff --git a/tests/f2fs/007.out b/tests/f2fs/007.out
> new file mode 100644
> index 00000000..2ea71c18
> --- /dev/null
> +++ b/tests/f2fs/007.out
> @@ -0,0 +1,4 @@
> +QA output created by 007
> +compression ratio is: 64 / 256
> +compression ratio is: 128 / 256
> +compression ratio is: 192 / 256
> --
> 2.40.1
>
