2 # SPDX-License-Identifier: GPL-2.0
3 # Copyright (c) 2015 Oracle, Inc. All Rights Reserved.
7 # Test for races or FS corruption when DIO writing to a file that's also
8 # the target of a reflink operation.
11 seqres=$RESULT_DIR/$seq
12 echo "QA output created by $seq"
16 status=1 # failure is the default!
17 trap "_cleanup; exit \$status" 0 1 2 3 7 15
22 rm -rf $tmp.* $finished_file
26 # get standard environment, filters and checks
31 # real QA test starts here
33 _require_scratch_reflink
36 echo "Format and mount"
37 _scratch_mkfs > $seqres.full 2>&1
38 _scratch_mount >> $seqres.full 2>&1
40 testdir=$SCRATCH_MNT/test-$seq
41 finished_file=/tmp/finished
46 nr_loops=$((loops - 1))
49 echo "Initialize files"
51 _pwrite_byte 0x61 0 $((loops * blksz)) $testdir/file1 >> $seqres.full
52 _pwrite_byte 0x62 0 $((loops * blksz)) $testdir/file2 >> $seqres.full
55 # Direct I/O overwriter...
57 while [ ! -e $finished_file ]; do
58 seq $nr_loops -1 0 | while read i; do
59 _pwrite_byte 0x63 $((i * blksz)) $blksz -d $testdir/file2 >> $seqres.full
64 echo "Reflink and dio write the target"
66 seq 1 10 | while read j; do
67 seq 0 $nr_loops | while read i; do
68 _reflink_range $testdir/file1 $((i * blksz)) \
69 $testdir/file2 $((i * blksz)) $blksz >> $seqres.full