4 # Reflink a file, use up the rest of the space, then try to observe ENOSPC
5 # while copy-on-writing the file via direct-io.
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
53 echo "Format and mount"
54 _scratch_mkfs > $seqres.full 2>&1
55 _scratch_mount >> $seqres.full 2>&1
57 testdir=$SCRATCH_MNT/test-$seq
60 echo "Reformat with appropriate size"
61 blksz="$(get_block_size $testdir)"
64 sz_bytes=$((nr_blks * 8 * blksz))
65 if [ $sz_bytes -lt $((32 * 1048576)) ]; then
66 sz_bytes=$((32 * 1048576))
68 _scratch_mkfs_sized $sz_bytes >> $seqres.full 2>&1
69 _scratch_mount >> $seqres.full 2>&1
73 echo "Create a big file and reflink it"
74 _pwrite_byte 0x61 0 $((blksz * nr_blks)) $testdir/bigfile >> $seqres.full 2>&1
75 _cp_reflink $testdir/bigfile $testdir/clonefile
78 echo "Allocate the rest of the space"
79 nr_free=$(stat -f -c '%f' $testdir)
80 touch $testdir/file0 $testdir/file1
81 _pwrite_byte 0x61 0 $((blksz * nr_free)) $testdir/eat_my_space >> $seqres.full 2>&1
84 echo "CoW the big file"
85 out="$(_pwrite_byte 0x62 0 $((blksz * nr_blks)) $testdir/bigfile -d 2>&1 | \
86 _filter_xfs_io_error)"
87 echo ${out} | grep -q "No space left on device" || echo "CoW should have failed with ENOSPC"
88 echo ${out} >> $seqres.full 2>&1
91 echo "Remount and try CoW again"
94 out="$(_pwrite_byte 0x62 0 $((blksz * nr_blks)) $testdir/bigfile -d 2>&1 | \
95 _filter_xfs_io_error)"
96 echo ${out} | grep -q "No space left on device" || echo "CoW should have failed with ENOSPC"
97 echo ${out} >> $seqres.full 2>&1