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#! /bin/bash
# SPDX-License-Identifier: GPL-2.0
# Copyright (c) 2015, Oracle and/or its affiliates. All Rights Reserved.
#
# FS QA Test No. 179
#
# Ensure that unaligned punch-hole steps around reflinked ranges:
# - Create a reflink clone of a file
# - Perform an unaligned punch in the middle of the file.
# - Check that the reflinked areas are still there.
#
. ./common/preamble
_begin_fstest auto quick clone punch
# Override the default cleanup function.
_cleanup()
{
cd /
rm -rf $tmp.* $testdir
}
# Import common functions.
. ./common/filter
. ./common/reflink
# real QA test starts here
_require_test_reflink
_require_cp_reflink
_require_xfs_io_command "fpunch"
testdir=$TEST_DIR/test-$seq
rm -rf $testdir
mkdir $testdir
echo "Create the original files"
blksz=65536
_pwrite_byte 0x61 0 $((blksz * 3)) $testdir/file1 >> $seqres.full
_cp_reflink $testdir/file1 $testdir/file2
_pwrite_byte 0x61 0 $((blksz * 3)) $testdir/file2.chk >> $seqres.full
_pwrite_byte 0x00 $((blksz - 17)) $((blksz + 17)) $testdir/file2.chk >> $seqres.full
_test_cycle_mount
md5sum $testdir/file1 | _filter_test_dir
md5sum $testdir/file2 | _filter_test_dir
md5sum $testdir/file2.chk | _filter_test_dir
c1=$(_md5_checksum $testdir/file1)
c2=$(_md5_checksum $testdir/file2)
test ${c1} = ${c2} || echo "file1 and file2 should match"
echo "fpunch files"
$XFS_IO_PROG -f -c "fpunch $((blksz - 17)) $((blksz + 17))" $testdir/file2
_test_cycle_mount
echo "Compare files"
md5sum $testdir/file1 | _filter_test_dir
md5sum $testdir/file2 | _filter_test_dir
md5sum $testdir/file2.chk | _filter_test_dir
c1=$(_md5_checksum $testdir/file1)
c2=$(_md5_checksum $testdir/file2)
test ${c1} != ${c2} || echo "file1 and file2 should not match"
echo "Compare against check files"
cmp -s $testdir/file2 $testdir/file2.chk || echo "file2 and file2.chk do not match"
# success, all done
status=0
exit
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