2 # SPDX-License-Identifier: GPL-2.0
3 # Copyright (c) 2015, Oracle and/or its affiliates. All Rights Reserved.
7 # Ensure that xfs_fsr un-reflinks files while defragmenting
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 # real QA test starts here
32 _require_scratch_reflink
34 _require_xfs_io_command "falloc"
36 echo "Format and mount"
37 _scratch_mkfs > $seqres.full 2>&1
38 _scratch_mount >> $seqres.full 2>&1
40 testdir=$SCRATCH_MNT/test-$seq
42 free_blocks0=$(stat -f $testdir -c '%f')
44 echo "Create the original file and reflink to file2, file3"
48 real_blksz="$(_get_block_size $testdir)"
49 blksz_factor=$((blksz / real_blksz))
50 _pwrite_byte 0x61 0 $((blks * blksz)) $testdir/file1 >> $seqres.full
51 _cp_reflink $testdir/file1 $testdir/file2
52 _cp_reflink $testdir/file2 $testdir/file3
53 _cp_reflink $testdir/file3 $testdir/file4
55 free_blocks1=$(stat -f $testdir -c '%f')
57 md5sum $testdir/file1 | _filter_scratch
58 md5sum $testdir/file2 | _filter_scratch
59 md5sum $testdir/file3 | _filter_scratch
60 md5sum $testdir/file4 | _filter_scratch
62 c01=$(_md5_checksum $testdir/file1)
63 c02=$(_md5_checksum $testdir/file2)
64 c03=$(_md5_checksum $testdir/file3)
65 c04=$(_md5_checksum $testdir/file4)
67 echo "CoW the reflink copies"
68 _pwrite_byte 0x62 $blksz $blksz $testdir/file2 >> $seqres.full
69 _pwrite_byte 0x63 $(( blksz * (blks - 1) )) $blksz $testdir/file3 >> $seqres.full
71 free_blocks2=$(stat -f $testdir -c '%f')
73 md5sum $testdir/file1 | _filter_scratch
74 md5sum $testdir/file2 | _filter_scratch
75 md5sum $testdir/file3 | _filter_scratch
76 md5sum $testdir/file4 | _filter_scratch
78 c11=$(_md5_checksum $testdir/file1)
79 c12=$(_md5_checksum $testdir/file2)
80 c13=$(_md5_checksum $testdir/file3)
81 c14=$(_md5_checksum $testdir/file4)
84 lsattr -l $testdir/ | _filter_scratch | _filter_spaces
85 $XFS_FSR_PROG -v -d $testdir/file1 >> $seqres.full
86 $XFS_FSR_PROG -v -d $testdir/file2 >> $seqres.full # fsr probably breaks the link
87 $XFS_FSR_PROG -v -d $testdir/file3 >> $seqres.full # fsr probably breaks the link
88 $XFS_FSR_PROG -v -d $testdir/file4 >> $seqres.full # fsr probably ignores this file
90 free_blocks3=$(stat -f $testdir -c '%f')
92 md5sum $testdir/file1 | _filter_scratch
93 md5sum $testdir/file2 | _filter_scratch
94 md5sum $testdir/file3 | _filter_scratch
95 md5sum $testdir/file4 | _filter_scratch
97 c21=$(_md5_checksum $testdir/file1)
98 c22=$(_md5_checksum $testdir/file2)
99 c23=$(_md5_checksum $testdir/file3)
100 c24=$(_md5_checksum $testdir/file4)
103 test $c01 = $c02 || echo "Files 1-2 do not match"
104 test $c01 = $c03 || echo "Files 1-3 do not match"
105 test $c01 = $c04 || echo "Files 1-4 do not match"
106 test $c02 = $c03 || echo "Files 2-3 do not match"
107 test $c02 = $c04 || echo "Files 2-4 do not match"
108 test $c03 = $c04 || echo "Files 3-4 do not match"
110 test $c01 = $c11 || echo "File1 should not be different after CoW"
111 test $c02 != $c12 || echo "File2 should be different after CoW"
112 test $c03 != $c13 || echo "File3 should be different after CoW"
113 test $c04 = $c14 || echo "File4 should not be different after CoW"
115 test $c11 = $c21 || echo "File1 changed by defrag"
116 test $c12 = $c22 || echo "File2 changed by defrag"
117 test $c13 = $c23 || echo "File3 changed by defrag"
118 test $c14 = $c24 || echo "File4 changed by defrag"
120 #echo $free_blocks0 $free_blocks1 $free_blocks2 $free_blocks3
122 _within_tolerance "free blocks after creating some reflink copies" $free_blocks1 $((free_blocks0 - (blks * blksz_factor) )) $margin -v
123 _within_tolerance "free blocks after CoW some reflink copies" $free_blocks2 $((free_blocks1 - 2)) $margin -v
124 _within_tolerance "free blocks after defragging all reflink copies" $free_blocks3 $((free_blocks2 - (blks * 2 * blksz_factor))) $margin -v
125 _within_tolerance "free blocks after all tests" $free_blocks3 $((free_blocks0 - (blks * 3 * blksz_factor))) $margin -v