4 # Test for races or FS corruption between reflink and direct 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
12 # published by the Free Software Foundation.
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.
19 # You should have received a copy of the GNU General Public License
20 # along with this program; if not, write the Free Software Foundation,
21 # Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
22 #-----------------------------------------------------------------------
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
52 echo "Format and mount"
53 _scratch_mkfs > $seqres.full 2>&1
54 _scratch_mount >> $seqres.full 2>&1
56 testdir=$SCRATCH_MNT/test-$seq
60 nr_loops=$((loops - 1))
63 echo "Initialize files"
65 _pwrite_byte 0x61 0 $((loops * blksz)) $testdir/file1 >> $seqres.full
66 _pwrite_byte 0x62 0 $((loops * blksz)) $testdir/file2 >> $seqres.full
67 _cp_reflink $testdir/file1 $testdir/file3
71 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)'
75 while [ ! -e $testdir/finished ]; do
76 _read_range $testdir/file3 0 $((loops * blksz)) -d | fbytes
80 echo "Reflink and dio reread the files!"
82 for i in `seq 1 2`; do
83 seq $nr_loops -1 0 | while read i; do
84 _reflink_range $testdir/file1 $((i * blksz)) \
85 $testdir/file3 $((i * blksz)) $blksz >> $seqres.full
88 seq $nr_loops -1 0 | while read i; do
89 _reflink_range $testdir/file2 $((i * blksz)) \
90 $testdir/file3 $((i * blksz)) $blksz >> $seqres.full
94 echo "Finished reflinking"
95 touch $testdir/finished