2 # SPDX-License-Identifier: GPL-2.0
3 # Copyright (c) 2015, Oracle and/or its affiliates. All Rights Reserved.
7 # See what happens if we dirty a lot of pages via CoW and immediately
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 15
22 rm -rf $tmp.* $testdir
25 # get standard environment, filters and checks
30 # real QA test starts here
31 _require_scratch_reflink
32 _require_xfs_io_command "falloc"
36 echo "Format and mount"
37 _scratch_mkfs > $seqres.full 2>&1
38 _scratch_mount >> $seqres.full 2>&1
40 testdir=$SCRATCH_MNT/test-$seq
43 echo "Create the original files"
46 filesize=$((blksz * nr))
47 _pwrite_byte 0x61 0 $filesize $testdir/file1 >> $seqres.full
48 _pwrite_byte 0x62 0 $filesize $testdir/file3 >> $seqres.full
49 _pwrite_byte 0x62 0 $filesize $testdir/file3.chk >> $seqres.full
50 seq 0 2 $((nr-1)) | while read f; do
51 _reflink_range $testdir/file1 $((blksz * f)) $testdir/file3 $((blksz * f)) $blksz >> $seqres.full
52 _pwrite_byte 0x61 $((blksz * f)) $blksz $testdir/file3.chk >> $seqres.full
57 md5sum $testdir/file1 | _filter_scratch
58 md5sum $testdir/file3 | _filter_scratch
59 md5sum $testdir/file3.chk | _filter_scratch
61 echo "CoW and unmount"
62 cowoff=$((filesize / 4))
63 cowsz=$((filesize / 2))
64 $XFS_IO_PROG -f -c "pwrite -S 0x63 -b $cowsz $cowoff $cowsz" $testdir/file3 >> $seqres.full