2 # SPDX-License-Identifier: GPL-2.0
3 # Copyright (c) 2018 Red Hat Inc. All Rights Reserved.
7 # Dedupe a single big file and verify integrity
10 seqres=$RESULT_DIR/$seq
11 echo "QA output created by $seq"
15 status=1 # failure is the default!
16 trap "_cleanup; exit \$status" 0 1 2 3 15
24 # get standard environment, filters and checks
29 # remove previous $seqres.full before test
32 # duperemove only supports btrfs and xfs (with reflink feature).
33 # Add other filesystems if it supports more later.
34 _supported_fs xfs btrfs
36 _require_scratch_dedupe
37 _require_command "$DUPEREMOVE_PROG" duperemove
39 fssize=$((2 * 1024 * 1024 * 1024))
40 _scratch_mkfs_sized $fssize > $seqres.full 2>&1
41 _scratch_mount >> $seqres.full 2>&1
43 # fill the fs with a big file has same contents
44 $XFS_IO_PROG -f -c "pwrite -S 0x55 0 $fssize" $SCRATCH_MNT/${seq}.file \
46 md5sum $SCRATCH_MNT/${seq}.file > ${tmp}.md5sum
48 echo "= before cycle mount ="
49 # Dedupe with 1M blocksize
50 $DUPEREMOVE_PROG -dr --dedupe-options=same -b 1048576 $SCRATCH_MNT/ >>$seqres.full 2>&1
52 md5sum -c --quiet ${tmp}.md5sum
53 # Dedupe with 64k blocksize
54 $DUPEREMOVE_PROG -dr --dedupe-options=same -b 65536 $SCRATCH_MNT/ >>$seqres.full 2>&1
55 # Verify integrity again
56 md5sum -c --quiet ${tmp}.md5sum
58 # umount and mount again, verify pagecache contents don't mutate
60 echo "= after cycle mount ="
61 md5sum -c --quiet ${tmp}.md5sum