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#! /bin/bash
# SPDX-License-Identifier: GPL-2.0
# Copyright (c) 2018 Red Hat Inc. All Rights Reserved.
#
# FS QA Test generic/559
#
# Dedupe a single big file and verify integrity
#
. ./common/preamble
_begin_fstest auto stress dedupe
# Import common functions.
. ./common/filter
. ./common/reflink
# real QA test starts here
_supported_fs generic
_require_scratch_duperemove
fssize=$((2 * 1024 * 1024 * 1024))
_scratch_mkfs_sized $fssize > $seqres.full 2>&1
_scratch_mount >> $seqres.full 2>&1
# fill the fs with a big file has same contents
$XFS_IO_PROG -f -c "pwrite -S 0x55 0 $fssize" $SCRATCH_MNT/${seq}.file \
>> $seqres.full 2>&1
md5sum $SCRATCH_MNT/${seq}.file > ${tmp}.md5sum
echo "= before cycle mount ="
# Dedupe with 1M blocksize
$DUPEREMOVE_PROG -dr --dedupe-options=same -b 1048576 $SCRATCH_MNT/ >>$seqres.full 2>&1
# Verify integrity
md5sum -c --quiet ${tmp}.md5sum
# Dedupe with 64k blocksize
$DUPEREMOVE_PROG -dr --dedupe-options=same -b 65536 $SCRATCH_MNT/ >>$seqres.full 2>&1
# Verify integrity again
md5sum -c --quiet ${tmp}.md5sum
# umount and mount again, verify pagecache contents don't mutate
_scratch_cycle_mount
echo "= after cycle mount ="
md5sum -c --quiet ${tmp}.md5sum
status=0
exit
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