mirror of
https://github.com/linux-apfs/apfstests.git
synced 2026-05-01 15:01:44 -07:00
Chandan Babu R
3ab311f592
This test verifies that XFS does not cause inode fork's extent count to overflow when remapping extents from one file's inode fork to another. Reviewed-by: Darrick J. Wong <djwong@kernel.org> Reviewed-by: Allison Henderson <allison.henderson@oracle.com> Signed-off-by: Chandan Babu R <chandanrlinux@gmail.com>
82 lines
1.9 KiB
Bash
Executable File
82 lines
1.9 KiB
Bash
Executable File
#! /bin/bash
|
|
# SPDX-License-Identifier: GPL-2.0
|
|
# Copyright (c) 2021 Chandan Babu R. All Rights Reserved.
|
|
#
|
|
# FS QA Test 536
|
|
#
|
|
# Verify that XFS does not cause inode fork's extent count to overflow when
|
|
# remapping extents from one file's inode fork to another.
|
|
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
|
|
. ./common/reflink
|
|
. ./common/inject
|
|
|
|
# remove previous $seqres.full before test
|
|
rm -f $seqres.full
|
|
|
|
# real QA test starts here
|
|
|
|
_supported_fs xfs
|
|
_require_scratch
|
|
_require_scratch_reflink
|
|
_require_xfs_debug
|
|
_require_xfs_io_command "reflink"
|
|
_require_xfs_io_error_injection "reduce_max_iextents"
|
|
|
|
echo "* Reflink remap extents"
|
|
|
|
echo "Format and mount fs"
|
|
_scratch_mkfs >> $seqres.full
|
|
_scratch_mount >> $seqres.full
|
|
|
|
bsize=$(_get_block_size $SCRATCH_MNT)
|
|
|
|
srcfile=${SCRATCH_MNT}/srcfile
|
|
dstfile=${SCRATCH_MNT}/dstfile
|
|
|
|
nr_blks=15
|
|
|
|
echo "Create \$srcfile having an extent of length $nr_blks blocks"
|
|
$XFS_IO_PROG -f -c "pwrite -b $((nr_blks * bsize)) 0 $((nr_blks * bsize))" \
|
|
-c fsync $srcfile >> $seqres.full
|
|
|
|
echo "Create \$dstfile having an extent of length $nr_blks blocks"
|
|
$XFS_IO_PROG -f -c "pwrite -b $((nr_blks * bsize)) 0 $((nr_blks * bsize))" \
|
|
-c fsync $dstfile >> $seqres.full
|
|
|
|
echo "Inject reduce_max_iextents error tag"
|
|
_scratch_inject_error reduce_max_iextents 1
|
|
|
|
echo "Reflink every other block from \$srcfile into \$dstfile"
|
|
for i in $(seq 1 2 $((nr_blks - 1))); do
|
|
_reflink_range $srcfile $((i * bsize)) $dstfile $((i * bsize)) $bsize \
|
|
>> $seqres.full 2>&1
|
|
done
|
|
|
|
echo "Verify \$dstfile's extent count"
|
|
nextents=$(_xfs_get_fsxattr nextents $dstfile)
|
|
if (( $nextents > 10 )); then
|
|
echo "Extent count overflow check failed: nextents = $nextents"
|
|
exit 1
|
|
fi
|
|
|
|
# success, all done
|
|
status=0
|
|
exit
|