4 # Test DIO CoW behavior when the write temporarily fails but the userspace
5 # program writes again.
7 #-----------------------------------------------------------------------
8 # Copyright (c) 2016, Oracle and/or its affiliates. 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 #-----------------------------------------------------------------------
25 seqres=$RESULT_DIR/$seq
26 echo "QA output created by $seq"
30 status=1 # failure is the default!
31 trap "_cleanup; exit \$status" 0 1 2 3 15
40 # get standard environment, filters and checks
46 # real QA test starts here
48 _require_scratch_reflink
50 _require_dm_target error
56 echo "Format and mount"
57 _scratch_mkfs > $seqres.full 2>&1
59 _dmerror_mount >> $seqres.full 2>&1
61 testdir=$SCRATCH_MNT/test-$seq
66 filesize=$((blksz * nr))
68 bufsize=$((blksz * bufnr))
70 _require_fs_space $SCRATCH_MNT $((filesize / 1024 * 3 * 5 / 4))
72 echo "Create the original files"
73 $XFS_IO_PROG -f -c "pwrite -S 0x61 -b $bufsize 0 $filesize" $testdir/file1 >> $seqres.full
74 _cp_reflink $testdir/file1 $testdir/file2 >> $seqres.full
79 md5sum $testdir/file1 | _filter_scratch
80 md5sum $testdir/file2 | _filter_scratch
82 echo "CoW and unmount"
84 _dmerror_load_error_table
85 urk=$($XFS_IO_PROG -d -f -c "pwrite -S 0x63 -b $bufsize 0 $filesize" $testdir/file2 2>&1)
86 echo $urk >> $seqres.full
87 echo "$urk" | grep -q "error" || _fail "dio pwrite did not fail"
88 _dmerror_load_working_table
91 $XFS_IO_PROG -d -f -c "pwrite -S 0x64 -b $bufsize 0 $filesize" $testdir/file2 >> $seqres.full 2>&1
96 md5sum $testdir/file1 | _filter_scratch
98 echo "Check for damage"
101 _repair_scratch_fs >> $seqres.full