4 # Reflink a file that uses more than half of the space, then try to observe
5 # ENOSPC while copy-on-writing the file via the page cache.
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.* $testdir1
39 # get standard environment, filters and checks
45 # real QA test starts here
47 _require_scratch_reflink
52 echo "Format and mount"
53 _scratch_mkfs > $seqres.full 2>&1
54 _scratch_mount >> $seqres.full 2>&1
56 testdir=$SCRATCH_MNT/test-$seq
59 echo "Reformat with appropriate size"
62 file_size=$((168 * 1024 * 1024))
63 fs_size=$((256 * 1024 * 1024))
64 _scratch_mkfs_sized $fs_size >> $seqres.full 2>&1
65 _scratch_mount >> $seqres.full 2>&1
69 echo "Create a big file and reflink it"
70 _pwrite_byte 0x61 0 $file_size $testdir/bigfile >> $seqres.full 2>&1
71 _cp_reflink $testdir/bigfile $testdir/clonefile
74 echo "Allocate the rest of the space"
75 touch $testdir/file0 $testdir/file1
76 _pwrite_byte 0x61 0 $fs_size $testdir/eat_my_space >> $seqres.full 2>&1
79 echo "CoW the big file"
80 out="$(_pwrite_byte 0x62 0 $file_size $testdir/bigfile 2>&1)"
81 echo ${out} | grep -q "No space left on device" || echo "CoW should have failed with ENOSPC"
82 echo ${out} >> $seqres.full 2>&1
85 echo "Remount and try CoW again"
88 out="$(_pwrite_byte 0x62 0 $file_size $testdir/bigfile 2>&1)"
89 echo ${out} | grep -q "No space left on device" || echo "CoW should have failed with ENOSPC"
90 echo ${out} >> $seqres.full 2>&1