4 # See what happens if we dirty a lot of pages via CoW and immediately
7 #-----------------------------------------------------------------------
8 # Copyright (c) 2015, 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 $seq"
30 status=1 # failure is the default!
31 trap "_cleanup; exit \$status" 0 1 2 3 15
36 rm -rf "$tmp".* "$TESTDIR"
39 # get standard environment, filters and checks
44 # real QA test starts here
46 _require_scratch_reflink
47 _require_xfs_io_command "falloc"
51 echo "Format and mount"
52 _scratch_mkfs > "$seqres.full" 2>&1
53 _scratch_mount >> "$seqres.full" 2>&1
55 TESTDIR="$SCRATCH_MNT/test-$seq"
59 echo "Create the original files"
62 _pwrite_byte 0x61 0 $((BLKSZ * NR)) "$TESTDIR/file1" >> "$seqres.full"
63 _pwrite_byte 0x62 0 $((BLKSZ * NR)) "$TESTDIR/file3" >> "$seqres.full"
64 _pwrite_byte 0x62 0 $((BLKSZ * NR)) "$TESTDIR/file3.chk" >> "$seqres.full"
65 seq 0 2 $((NR-1)) | while read f; do
66 _reflink_range "$TESTDIR/file1" $((BLKSZ * f)) "$TESTDIR/file3" $((BLKSZ * f)) $BLKSZ >> "$seqres.full"
67 _pwrite_byte 0x61 $((BLKSZ * f)) $BLKSZ "$TESTDIR/file3.chk" >> "$seqres.full"
72 md5sum "$TESTDIR/file1" | _filter_scratch
73 md5sum "$TESTDIR/file3" | _filter_scratch
74 md5sum "$TESTDIR/file3.chk" | _filter_scratch
76 echo "CoW and unmount"
77 "$XFS_IO_PROG" -f -c "pwrite -S 0x63 -b $((BLKSZ * NR / 2)) $((BLKSZ * NR / 4)) $((BLKSZ * NR / 2))" "$TESTDIR/file3" >> "$seqres.full"
80 echo "Check for damage"