2 # SPDX-License-Identifier: GPL-2.0
3 # Copyright (c) 2018 Red Hat Inc. All Rights Reserved.
7 # Iterate dedupe integrity test. Copy an original data0 several
8 # times (d0 -> d1, d1 -> d2, ... dn-1 -> dn), dedupe dataN everytime
9 # before copy. At last, verify dataN same with data0.
12 seqres=$RESULT_DIR/$seq
13 echo "QA output created by $seq"
17 status=1 # failure is the default!
18 trap "_cleanup; exit \$status" 0 1 2 3 15
26 # get standard environment, filters and checks
31 # remove previous $seqres.full before test
34 # real QA test starts here
36 # duperemove only supports btrfs and xfs (with reflink feature).
37 # Add other filesystems if it supports more later.
38 _supported_fs xfs btrfs
40 _require_scratch_dedupe
41 _require_command "$DUPEREMOVE_PROG" duperemove
43 _scratch_mkfs > $seqres.full 2>&1
44 _scratch_mount >> $seqres.full 2>&1
46 function iterate_dedup_verify()
51 for ((index = 1; index <= times; index++)); do
53 find $dest -type f -exec md5sum {} \; \
56 $FSSTRESS_PROG $fsstress_opts -d $noisedir \
57 -n 200 -p $((5 * LOAD_FACTOR)) >/dev/null 2>&1
58 # Too many output, so only save error output
59 $DUPEREMOVE_PROG -dr --dedupe-options=same $dupdir \
60 >/dev/null 2>$seqres.full
61 md5sum -c --quiet $md5file$index
63 dest=$dupdir/$((index + 1))
67 srcdir=$SCRATCH_MNT/src
68 dupdir=$SCRATCH_MNT/dup
69 noisedir=$dupdir/noise
76 # Create some files to be original data
77 $FSSTRESS_PROG $fsstress_opts -d $srcdir \
78 -n 500 -p $((5 * LOAD_FACTOR)) >/dev/null 2>&1
80 # Calculate how many test cycles will be run
81 src_size=`du -ks $srcdir | awk '{print $1}'`
82 free_size=`df -kP $SCRATCH_MNT | grep -v Filesystem | awk '{print $4}'`
83 times=$((free_size / src_size))
84 if [ $times -gt $((4 * TIME_FACTOR)) ]; then
85 times=$((4 * TIME_FACTOR))
88 echo "= Do dedup and verify ="
91 # Use the last checksum file to verify the original data
92 sed -e s#dup/$times#src#g $md5file$times > $md5file
93 echo "= Backwords verify ="
94 md5sum -c --quiet $md5file
96 # read from the disk also doesn't show mutations.
98 echo "= Verify after cycle mount ="
99 for ((index = 1; index <= times; index++)); do
100 md5sum -c --quiet $md5file$index