2 # SPDX-License-Identifier: GPL-2.0+
3 # Copyright (c) 2019, Oracle and/or its affiliates. All Rights Reserved.
7 # Ensuring that reflinking works when the source range covers multiple
8 # extents, some unwritten, some not:
10 # - Create a file with the following repeating sequence of blocks:
16 # - reflink across the halfway mark, starting with the unwritten extent.
17 # - Check that the files are now different where we say they're different.
20 seqres=$RESULT_DIR/$seq
21 echo "QA output created by $seq"
25 status=1 # failure is the default!
26 trap "_cleanup; exit \$status" 0 1 2 3 15
34 # get standard environment, filters and checks
39 # real QA test starts here
42 _require_scratch_reflink
43 _require_xfs_io_command "falloc"
47 echo "Format and mount"
48 _scratch_mkfs > $seqres.full 2>&1
49 _scratch_mount >> $seqres.full 2>&1
51 testdir=$SCRATCH_MNT/test-$seq
54 echo "Create the original files"
57 filesize=$((blksz * nr))
58 _pwrite_byte 0x64 0 $((blksz * nr)) $testdir/file2 >> $seqres.full
59 _pwrite_byte 0x64 0 $((blksz * nr)) $testdir/file2.chk >> $seqres.full
60 _weave_reflink_rainbow $blksz $nr $testdir/file1 $testdir/file3 >> $seqres.full
64 md5sum $testdir/file1 | _filter_scratch
65 md5sum $testdir/file2 | _filter_scratch
66 md5sum $testdir/file2.chk | _filter_scratch
67 md5sum $testdir/file3 | _filter_scratch
68 md5sum $testdir/file3.chk | _filter_scratch
70 echo "reflink across the transition"
71 soff=$((filesize / 4))
72 doff=$((filesize / 2))
74 _weave_reflink_rainbow_delalloc $blksz $nr $testdir/file3 >> $seqres.full
76 # now reflink the rainbow
77 echo "before reflink" >> $seqres.full
78 $FILEFRAG_PROG -v $testdir/file2 >> $seqres.full 2>&1
79 $FILEFRAG_PROG -v $testdir/file3 >> $seqres.full 2>&1
80 $XFS_IO_PROG -f -c "reflink $testdir/file3 $soff $doff $rsz" $testdir/file2 >> $seqres.full
81 $XFS_IO_PROG -c "truncate $doff" $testdir/file2.chk
82 dd if=$testdir/file3.chk skip=$((soff / blksz)) count=$((rsz / blksz)) bs=$blksz >> $testdir/file2.chk 2> /dev/null
86 echo "after reflink" >> $seqres.full
87 $FILEFRAG_PROG -v $testdir/file2 >> $seqres.full 2>&1
88 $FILEFRAG_PROG -v $testdir/file3 >> $seqres.full 2>&1
89 md5sum $testdir/file1 | _filter_scratch
90 md5sum $testdir/file2 | _filter_scratch
91 md5sum $testdir/file2.chk | _filter_scratch
92 md5sum $testdir/file3 | _filter_scratch
93 md5sum $testdir/file3.chk | _filter_scratch