4 # Reflink two large files and CoW them in big chunks.
6 # This test is dependent on the system page size, so we cannot use md5 in
7 # the golden output; we can only compare to a check file.
9 #-----------------------------------------------------------------------
10 # Copyright (c) 2015, Oracle and/or its affiliates. All Rights Reserved.
12 # This program is free software; you can redistribute it and/or
13 # modify it under the terms of the GNU General Public License as
14 # published by the Free Software Foundation.
16 # This program is distributed in the hope that it would be useful,
17 # but WITHOUT ANY WARRANTY; without even the implied warranty of
18 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
19 # GNU General Public License for more details.
21 # You should have received a copy of the GNU General Public License
22 # along with this program; if not, write the Free Software Foundation,
23 # Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
24 #-----------------------------------------------------------------------
27 seqres=$RESULT_DIR/$seq
28 echo "QA output created by $seq"
32 status=1 # failure is the default!
33 trap "_cleanup; exit \$status" 0 1 2 3 15
38 rm -rf $tmp.* $testdir
41 # get standard environment, filters and checks
46 # real QA test starts here
48 _require_scratch_reflink
54 echo "Format and mount"
55 _scratch_mkfs > $seqres.full 2>&1
56 _scratch_mount >> $seqres.full 2>&1
58 testdir=$SCRATCH_MNT/test-$seq
63 filesize=$((blksz * nr))
65 bufsize=$((blksz * bufnr))
67 free_blocks=$(stat -f -c '%a' $testdir)
68 real_blksz=$(stat -f -c '%S' $testdir)
69 space_needed=$(((filesize * 3) * 5 / 4))
70 space_avail=$((free_blocks * real_blksz))
71 test $space_needed -gt $space_avail && _notrun "Not enough space. $space_avail < $space_needed"
73 echo "Create the original files"
74 $XFS_IO_PROG -f -c "pwrite -S 0x61 -b $bufsize 0 $filesize" $testdir/file1 >> $seqres.full
75 _cp_reflink $testdir/file1 $testdir/file2 >> $seqres.full
76 $XFS_IO_PROG -f -c "pwrite -S 0x61 -b $bufsize 0 $filesize" $testdir/file2.chk >> $seqres.full
80 md5sum $testdir/file1 | _filter_scratch
81 md5sum $testdir/file2 | _filter_scratch
82 md5sum $testdir/file2.chk | _filter_scratch
84 echo "CoW and unmount"
85 $XFS_IO_PROG -f -c "pwrite -S 0x63 -b $bufsize 0 $filesize" $testdir/file2 >> $seqres.full
86 $XFS_IO_PROG -f -c "pwrite -S 0x63 -b $bufsize 0 $filesize" $testdir/file2.chk >> $seqres.full
90 md5sum $testdir/file1 | _filter_scratch
91 md5sum $testdir/file2 | _filter_scratch
92 md5sum $testdir/file2.chk | _filter_scratch