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 destination 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 _weave_reflink_rainbow $blksz $nr $testdir/file1 $testdir/file3 >> $seqres.full
63 md5sum $testdir/file1 | _filter_scratch
64 md5sum $testdir/file2 | _filter_scratch
65 md5sum $testdir/file3 | _filter_scratch
66 md5sum $testdir/file3.chk | _filter_scratch
68 echo "reflink across the transition"
69 roff=$((filesize / 4))
71 _weave_reflink_rainbow_delalloc $blksz $nr $testdir/file3 >> $seqres.full
73 # now reflink into the rainbow
74 echo "before reflink" >> $seqres.full
75 $FILEFRAG_PROG -v $testdir/file2 >> $seqres.full 2>&1
76 $FILEFRAG_PROG -v $testdir/file3 >> $seqres.full 2>&1
77 $XFS_IO_PROG -f -c "reflink $testdir/file2 $roff $roff $rsz" $testdir/file3 >> $seqres.full
78 _pwrite_byte 0x64 $roff $rsz $testdir/file3.chk >> $seqres.full
82 echo "after reflink" >> $seqres.full
83 $FILEFRAG_PROG -v $testdir/file2 >> $seqres.full 2>&1
84 $FILEFRAG_PROG -v $testdir/file3 >> $seqres.full 2>&1
85 md5sum $testdir/file1 | _filter_scratch
86 md5sum $testdir/file2 | _filter_scratch
87 md5sum $testdir/file3 | _filter_scratch
88 md5sum $testdir/file3.chk | _filter_scratch