4 # Test for races or FS corruption when DIO writing to a file that's also
5 # the source of a reflink operation.
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 $seq"
31 status=1 # failure is the default!
32 trap "_cleanup; exit \$status" 0 1 2 3 7 15
41 # get standard environment, filters and checks
46 # real QA test starts here
48 _require_scratch_reflink
51 echo "Format and mount"
52 _scratch_mkfs > "$seqres.full" 2>&1
53 _scratch_mount >> "$seqres.full" 2>&1
55 TESTDIR="$SCRATCH_MNT/test-$seq"
60 nr_loops=$((loops - 1))
63 echo "Initialize file"
65 _pwrite_byte 0x61 0 $((loops * BLKSZ)) "$TESTDIR/file1" >> "$seqres.full"
71 while [ ! -e "$TESTDIR/finished" ]; do
72 _cp_reflink "$TESTDIR/file1" "$TESTDIR/snap_$n" || break
77 echo "Snapshot a file undergoing directio rewrite"
79 seq $nr_loops -1 0 | while read i; do
80 _pwrite_byte 0x63 $((i * BLKSZ)) $BLKSZ -d "$TESTDIR/file1" >> "$seqres.full"
82 touch $TESTDIR/finished
85 echo "Check for damage"