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1 #!/usr/bin/env bash 2 # group: rw quick 3 # 4 # Test preallocated resize of raw images 5 # 6 # Copyright (C) 2017 Red Hat, Inc. 7 # 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. 12 # 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. 17 # 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/>. 20 # 21 22 # creator 23 owner=hreitz@redhat.com 24 25 seq=$(basename $0) 26 echo "QA output created by $seq" 27 28 status=1 # failure is the default! 29 30 _cleanup() 31 { 32 _cleanup_test_img 33 } 34 trap "_cleanup; exit \$status" 0 1 2 3 15 35 36 # get standard environment and filters 37 . ./common.rc 38 . ./common.filter 39 40 _supported_fmt raw 41 _supported_proto file fuse 42 _supported_os Linux 43 44 # in kB 45 CREATION_SIZE=128 46 GROWTH_SIZE=256 47 48 echo '=== Testing image growth ===' 49 50 for create_mode in off falloc full; do 51 for growth_mode in off falloc full; do 52 echo 53 echo "--- create_mode=$create_mode growth_mode=$growth_mode ---" 54 55 # Our calculation below assumes kilobytes as unit for the actual size. 56 # Disable the extent size hint because it would give us a result in 57 # megabytes. 58 _make_test_img -o "preallocation=$create_mode,extent_size_hint=0" ${CREATION_SIZE}K 59 $QEMU_IMG resize -f "$IMGFMT" --preallocation=$growth_mode "$TEST_IMG" +${GROWTH_SIZE}K 60 61 expected_size=0 62 if [ $create_mode != off ]; then 63 expected_size=$CREATION_SIZE 64 fi 65 if [ $growth_mode != off ]; then 66 expected_size=$((expected_size + $GROWTH_SIZE)) 67 fi 68 69 actual_size=$($QEMU_IMG info -f "$IMGFMT" "$TEST_IMG" | grep 'disk size') 70 actual_size=$(echo "$actual_size" | sed -e 's/^[^0-9]*\([0-9]\+\).*$/\1/') 71 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 74 # we expect. 75 if [ $actual_size -lt $expected_size ]; then 76 echo "ERROR: Image should have at least ${expected_size}K, but has ${actual_size}K" 77 fi 78 done 79 done 80 81 echo 82 echo '=== Testing image shrinking ===' 83 84 # None of this should work except for "off", because other modes cannot be used 85 # for shrinking 86 for growth_mode in falloc full off; do 87 echo 88 echo "--- growth_mode=$growth_mode ---" 89 $QEMU_IMG resize -f "$IMGFMT" --shrink --preallocation=$growth_mode "$TEST_IMG" -${GROWTH_SIZE}K 90 done 91 92 echo 93 echo '=== Testing image growth on 2G empty image ===' 94 95 for growth_mode in falloc full; do 96 echo 97 echo "--- growth_mode=$growth_mode ---" 98 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 103 # this tests we do. 104 105 _make_test_img -o "extent_size_hint=0" 2G 106 $QEMU_IMG resize -f "$IMGFMT" --preallocation=$growth_mode "$TEST_IMG" +${GROWTH_SIZE}K 107 108 actual_size=$($QEMU_IMG info -f "$IMGFMT" "$TEST_IMG" | grep 'disk size') 109 actual_size=$(echo "$actual_size" | sed -e 's/^[^0-9]*\([0-9]\+\).*$/\1/') 110 111 if [ $actual_size -lt $GROWTH_SIZE ]; then 112 echo "ERROR: Image should have at least ${GROWTH_SIZE}K, but has ${actual_size}K" 113 fi 114 done 115 116 # success, all done 117 echo '*** done' 118 rm -f $seq.full 119 status=0