On 3/11/25 22:06, Zorro Lang wrote:
> On Tue, Mar 11, 2025 at 04:04:30PM +0800, Chao Yu wrote:
>> This is a regression test to check whether fsck can handle corrupted
>> nlinks correctly, it uses inject.f2fs to inject nlinks w/ wrong value,
>> and expects fsck.f2fs can detect such corruption and do the repair.
>>
>> Cc: Jaegeuk Kim <jaeg...@kernel.org>
>> Signed-off-by: Chao Yu <c...@kernel.org>
>> ---
>> v3:
>> - check socket command
>> - add _cleanup to kill & wait background thread
>> - add commit title in _fixed_by_git_commit line
>> - clean up codes
>> tests/f2fs/009 | 145 +++++++++++++++++++++++++++++++++++++++++++++
>> tests/f2fs/009.out | 2 +
>> 2 files changed, 147 insertions(+)
>> create mode 100755 tests/f2fs/009
>> create mode 100644 tests/f2fs/009.out
>>
>> diff --git a/tests/f2fs/009 b/tests/f2fs/009
>> new file mode 100755
>> index 00000000..4f8b2079
>> --- /dev/null
>> +++ b/tests/f2fs/009
>> @@ -0,0 +1,145 @@
>> +#! /bin/bash
>> +# SPDX-License-Identifier: GPL-2.0
>> +# Copyright (c) 2025 Chao Yu. All Rights Reserved.
>> +#
>> +# FS QA Test No. f2fs/009
>> +#
>> +# This is a regression test to check whether fsck can handle corrupted
>> +# nlinks correctly, it uses inject.f2fs to inject nlinks w/ wrong value,
>> +# and expects fsck.f2fs can detect such corruption and do the repair.
>> +#
>> +. ./common/preamble
>> +_begin_fstest auto quick
>> +
>> +if [ ! -x "$(type -P socket)" ]; then
>> + _notrun "Couldn't find socket"
>> +fi
>> +
>> +_require_scratch
>> +_require_command "$F2FS_INJECT_PROG" inject.f2fs
>> +_require_command "$F2FS_FSCK_PROG" fsck.f2fs
>> +
>> +_fixed_by_git_commit f2fs-tools 958cd6e "fsck.f2fs: support to repair
>> corrupted i_links"
>
> _fixed_by_git_commit f2fs-tools 958cd6e \
> "fsck.f2fs: support to repair corrupted i_links"
>
>> +
>> +filename=$SCRATCH_MNT/foo
>> +hardlink=$SCRATCH_MNT/bar
>> +
>> +_cleanup()
>> +{
>> + if [ -n "$pid" ]; then
>> + kill $pid &> /dev/null
>> + wait
>> + fi
>
> cd /
> rm -r -f $tmp.*
>
> I don't have more review points on this test case now, f2fs list might give it
> more reviewing :)
Thanks a lot for the review. :)
Thanks,
>
> Thanks,
> Zorro
>
>> +}
>> +
>> +for ((i=0;i<14;i++)) do
>> + echo "round: " $i >> $seqres.full
>> +
>> + _scratch_mkfs >> $seqres.full
>> + _scratch_mount
>> +
>> + if [ $i == 0 ]; then
>> + touch $filename
>> + ino=`stat -c '%i' $filename`
>> + nlink=0
>> + elif [ $i == 1 ]; then
>> + mkdir $filename
>> + ino=`stat -c '%i' $filename`
>> + nlink=1
>> + elif [ $i == 2 ]; then
>> + mknod $filename c 9 0
>> + ino=`stat -c '%i' $filename`
>> + nlink=0
>> + elif [ $i == 3 ]; then
>> + mknod $filename b 8 0
>> + ino=`stat -c '%i' $filename`
>> + nlink=0
>> + elif [ $i == 4 ]; then
>> + mkfifo $filename
>> + ino=`stat -c '%i' $filename`
>> + nlink=0
>> + elif [ $i == 5 ]; then
>> + socket -s $filename >> $seqres.full 2>&1 &
>> + pid=$!
>> + sleep 2
>> + ino=`stat -c '%i' $filename`
>> + kill $pid >> $seqres.full 2>&1
>> + nlink=0
>> + elif [ $i == 6 ]; then
>> + ln -s $SCRATCH_MNT/empty $filename
>> + ino=`stat -c '%i' $filename`
>> + nlink=0
>> + elif [ $i == 7 ]; then
>> + # orphan inode
>> + touch $filename
>> + ino=`stat -c '%i' $filename`
>> + $F2FS_IO_PROG write 1 0 1 zero atomic_commit $filename 5000 >>
>> $seqres.full 2>&1 &
>> + stat $filename >> $seqres.full
>> + rm $filename
>> + $F2FS_IO_PROG shutdown 1 $SCRATCH_MNT/ >> $seqres.full
>> + sleep 6
>> + nlink=1
>> + elif [ $i == 8 ]; then
>> + # hardlink on file
>> + touch $filename
>> + ino=`stat -c '%i' $filename`
>> + ln $filename $hardlink
>> + nlink=0
>> + elif [ $i == 9 ]; then
>> + # hardlink on charactor
>> + mknod $filename c 9 0
>> + ino=`stat -c '%i' $filename`
>> + ln $filename $hardlink
>> + nlink=0
>> + elif [ $i == 10 ]; then
>> + # hardlink on blockdev
>> + mknod $filename b 8 0
>> + ino=`stat -c '%i' $filename`
>> + ln $filename $hardlink
>> + nlink=0
>> + elif [ $i == 11 ]; then
>> + # hardlink on pipe
>> + mkfifo $filename
>> + ino=`stat -c '%i' $filename`
>> + ln $filename $hardlink
>> + nlink=0
>> + elif [ $i == 12 ]; then
>> + # hardlink on socket
>> + socket -s $filename >> $seqres.full 2>&1 &
>> + pid=$!
>> + sleep 2
>> + ino=`stat -c '%i' $filename`
>> + kill $pid >> $seqres.full 2>&1
>> + ln $filename $hardlink
>> + nlink=0
>> + elif [ $i == 13 ]; then
>> + # hardlink on symlink
>> + ln -s $SCRATCH_MNT/empty $filename
>> + ino=`stat -c '%i' $filename`
>> + ln $filename $hardlink
>> + nlink=0
>> + fi
>> +
>> + if [ $i != 7 ]; then
>> + stat $SCRATCH_MNT/* >> $seqres.full
>> + fi
>> + echo "ino:"$ino >> $seqres.full
>> + echo "nlink:"$nlink >> $seqres.full
>> +
>> + _scratch_unmount
>> +
>> + $F2FS_INJECT_PROG --node --mb i_links --nid $ino --val $nlink
>> $SCRATCH_DEV \
>> + >> $seqres.full || _fail "fail to inject"
>> +
>> + _check_scratch_fs >> $seqres.full 2>&1 && _fail "can't find corruption"
>> + _repair_scratch_fs >> $seqres.full
>> + _check_scratch_fs >> $seqres.full 2>&1 || _fail "fsck can't fix
>> corruption"
>> +
>> + _scratch_mount
>> + _scratch_unmount
>> +done
>> +
>> +echo "Silence is golden"
>> +
>> +status=0
>> +exit
>> diff --git a/tests/f2fs/009.out b/tests/f2fs/009.out
>> new file mode 100644
>> index 00000000..7e977155
>> --- /dev/null
>> +++ b/tests/f2fs/009.out
>> @@ -0,0 +1,2 @@
>> +QA output created by 009
>> +Silence is golden
>> --
>> 2.48.1
>>
>
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