4 # Test preallocated resize of raw images
6 # Copyright (C) 2017 Red Hat, Inc.
8 # This program is free software; you can redistribute it and/or modify
9 # it under the terms of the GNU General Public License as published by
10 # the Free Software Foundation; either version 2 of the License, or
11 # (at your option) any later version.
13 # This program is distributed in the hope that it will be useful,
14 # but WITHOUT ANY WARRANTY; without even the implied warranty of
15 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 # GNU General Public License for more details.
18 # You should have received a copy of the GNU General Public License
19 # along with this program. If not, see <http://www.gnu.org/licenses/>.
23 owner=hreitz@redhat.com
26 echo "QA output created by $seq"
28 status=1 # failure is the default!
34 trap "_cleanup; exit \$status" 0 1 2 3 15
36 # get standard environment and filters
41 _supported_proto file fuse
48 echo '=== Testing image growth ==='
50 for create_mode in off falloc full; do
51 for growth_mode in off falloc full; do
53 echo "--- create_mode=$create_mode growth_mode=$growth_mode ---"
55 # Our calculation below assumes kilobytes as unit for the actual size.
56 # Disable the extent size hint because it would give us a result in
58 _make_test_img -o "preallocation=$create_mode,extent_size_hint=0" ${CREATION_SIZE}K
59 $QEMU_IMG resize -f "$IMGFMT" --preallocation=$growth_mode "$TEST_IMG" +${GROWTH_SIZE}K
62 if [ $create_mode != off ]; then
63 expected_size=$CREATION_SIZE
65 if [ $growth_mode != off ]; then
66 expected_size=$((expected_size + $GROWTH_SIZE))
69 actual_size=$($QEMU_IMG info -f "$IMGFMT" "$TEST_IMG" | grep 'disk size' | head -n 1)
70 actual_size=$(echo "$actual_size" | sed -e 's/^[^0-9]*\([0-9]\+\).*$/\1/')
72 # The actual size may exceed the expected size, depending on the file
73 # system. Therefore we just test that the actual size is at least what
75 if [ $actual_size -lt $expected_size ]; then
76 echo "ERROR: Image should have at least ${expected_size}K, but has ${actual_size}K"
82 echo '=== Testing image shrinking ==='
84 # None of this should work except for "off", because other modes cannot be used
86 for growth_mode in falloc full off; do
88 echo "--- growth_mode=$growth_mode ---"
89 $QEMU_IMG resize -f "$IMGFMT" --shrink --preallocation=$growth_mode "$TEST_IMG" -${GROWTH_SIZE}K
93 echo '=== Testing image growth on 2G empty image ==='
95 for growth_mode in falloc full; do
97 echo "--- growth_mode=$growth_mode ---"
99 # Maybe we want to do an lseek() to the end of the file before the
100 # preallocation; if the file has a length of 2 GB, that would
101 # return an integer that overflows to negative when put into a
102 # plain int. We should use the correct type for the result, and
105 _make_test_img -o "extent_size_hint=0" 2G
106 $QEMU_IMG resize -f "$IMGFMT" --preallocation=$growth_mode "$TEST_IMG" +${GROWTH_SIZE}K
108 actual_size=$($QEMU_IMG info -f "$IMGFMT" "$TEST_IMG" | grep 'disk size' | head -n 1)
109 actual_size=$(echo "$actual_size" | sed -e 's/^[^0-9]*\([0-9]\+\).*$/\1/')
111 if [ $actual_size -lt $GROWTH_SIZE ]; then
112 echo "ERROR: Image should have at least ${GROWTH_SIZE}K, but has ${actual_size}K"