mirror of
https://github.com/linux-apfs/apfstests.git
synced 2026-05-01 15:01:44 -07:00
ethanwu
9f0744b169
This is a regression test for the issue fixed by the kernel commit titled "btrfs: correctly calculate item size used when item key collision happens" In this case, we'll simply rename many forged filename that cause collision under a directory to see if rename failed and filesystem is forced readonly. Signed-off-by: ethanwu <ethanwu@synology.com> Reviewed-by: Filipe Manana <fdmanana@suse.com> Signed-off-by: Eryu Guan <guaneryu@gmail.com>
65 lines
1.7 KiB
Bash
Executable File
65 lines
1.7 KiB
Bash
Executable File
#! /bin/bash
|
|
# SPDX-License-Identifier: GPL-2.0
|
|
# Copyright (c) 2020 Synology. All Rights Reserved.
|
|
#
|
|
# FS QA Test No. 154
|
|
#
|
|
# Test if btrfs rename handle dir item collision correctly
|
|
# Without patch fix, rename will fail with EOVERFLOW, and filesystem
|
|
# is forced readonly.
|
|
#
|
|
# This bug is going to be fixed by a patch for kernel titled
|
|
# "btrfs: correctly calculate item size used when item key collision happens"
|
|
#
|
|
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
|
|
|
|
_supported_fs btrfs
|
|
_require_scratch
|
|
_require_command $PYTHON2_PROG python2
|
|
|
|
rm -f $seqres.full
|
|
|
|
# Currently in btrfs the node/leaf size can not be smaller than the page
|
|
# size (but it can be greater than the page size). So use the largest
|
|
# supported node/leaf size (64Kb) so that the test can run on any platform
|
|
# that Linux supports.
|
|
_scratch_mkfs "--nodesize 65536" >>$seqres.full 2>&1
|
|
_scratch_mount
|
|
|
|
#
|
|
# In the following for loop, we'll create a leaf fully occupied by
|
|
# only one dir item with many forged collision names in it.
|
|
#
|
|
# leaf 22544384 items 1 free space 0 generation 6 owner FS_TREE
|
|
# leaf 22544384 flags 0x1(WRITTEN) backref revision 1
|
|
# fs uuid 9064ba52-3d2c-4840-8e26-35db08fa17d7
|
|
# chunk uuid 9ba39317-3159-46c9-a75a-965ab1e94267
|
|
# item 0 key (256 DIR_ITEM 3737737011) itemoff 25 itemsize 65410
|
|
# ...
|
|
#
|
|
|
|
$PYTHON2_PROG $here/src/btrfs_crc32c_forged_name.py -d $SCRATCH_MNT -c 310
|
|
echo "Silence is golden"
|
|
|
|
# success, all done
|
|
status=0; exit
|