4 # Test for races or FS corruption between reflink and buffered I/O reading the
7 #-----------------------------------------------------------------------
8 # Copyright (c) 2015 Oracle, Inc. All Rights Reserved.
10 # This program is free software; you can redistribute it and/or
11 # modify it under the terms of the GNU General Public License as
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14 # This program is distributed in the hope that it would be useful,
15 # but WITHOUT ANY WARRANTY; without even the implied warranty of
16 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 # GNU General Public License for more details.
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21 # Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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26 seqres=$RESULT_DIR/$seq
27 echo "QA output created by $seq"
31 status=1 # failure is the default!
32 trap "_cleanup; exit \$status" 0 1 2 3 7 15
41 # get standard environment, filters and checks
46 # real QA test starts here
48 _require_scratch_reflink
51 echo "Format and mount"
52 _scratch_mkfs > $seqres.full 2>&1
53 _scratch_mount >> $seqres.full 2>&1
55 testdir=$SCRATCH_MNT/test-$seq
59 nr_loops=$((loops - 1))
62 echo "Initialize files"
64 _pwrite_byte 0x61 0 $((loops * blksz)) $testdir/file1 >> $seqres.full
65 _pwrite_byte 0x62 0 $((loops * blksz)) $testdir/file2 >> $seqres.full
66 _cp_reflink $testdir/file1 $testdir/file3
70 egrep -v '(61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61|62 62 62 62 62 62 62 62 62 62 62 62 62 62 62 62)'
74 while [ ! -e $testdir/finished ]; do
75 _read_range $testdir/file3 0 $((loops * blksz)) | fbytes
79 echo "Reflink and reread the files!"
81 for i in `seq 1 2`; do
82 seq $nr_loops -1 0 | while read i; do
83 _reflink_range $testdir/file1 $((i * blksz)) \
84 $testdir/file3 $((i * blksz)) $blksz >> $seqres.full
87 seq $nr_loops -1 0 | while read i; do
88 _reflink_range $testdir/file2 $((i * blksz)) \
89 $testdir/file3 $((i * blksz)) $blksz >> $seqres.full
93 echo "Finished reflinking"
94 touch $testdir/finished