025 (2062B)
1 #!/usr/bin/env bash 2 # group: rw auto quick 3 # 4 # Resizing images 5 # 6 # Copyright (C) 2010 IBM, Corp. 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=stefanha@redhat.com 24 25 seq=`basename $0` 26 echo "QA output created by $seq" 27 28 status=1 # failure is the default! 29 30 _cleanup() 31 { 32 _cleanup_test_img 33 } 34 trap "_cleanup; exit \$status" 0 1 2 3 15 35 36 # get standard environment, filters and checks 37 . ./common.rc 38 . ./common.filter 39 . ./common.pattern 40 41 _supported_fmt raw qcow2 qed luks 42 _supported_proto file rbd nfs fuse 43 44 echo "=== Creating image" 45 echo 46 small_size=$((128 * 1024 * 1024)) 47 big_size=$((384 * 1024 * 1024)) 48 _make_test_img $small_size 49 50 echo 51 echo "=== Writing whole image" 52 io_pattern write 0 $small_size 0 1 0xc5 53 _check_test_img 54 55 echo 56 echo "=== Resizing image" 57 $QEMU_IO "$TEST_IMG" <<EOF | _filter_qemu_io 58 length 59 truncate $big_size 60 length 61 EOF 62 _check_test_img 63 64 # bdrv_truncate() doesn't zero the new space, so we need to do that explicitly. 65 # We still want to test automatic zeroing for other formats even though 66 # bdrv_truncate() doesn't guarantee it. 67 if [ "$IMGFMT" == "luks" ]; then 68 $QEMU_IO -c "write -z $small_size $((big_size - small_size))" "$TEST_IMG" > /dev/null 69 fi 70 71 echo 72 echo "=== Verifying image size after reopen" 73 $QEMU_IO -c "length" "$TEST_IMG" 74 75 echo 76 echo "=== Verifying resized image" 77 io_pattern read 0 $small_size 0 1 0xc5 78 io_pattern read $small_size $(($big_size - $small_size)) 0 1 0 79 80 # success, all done 81 echo "*** done" 82 rm -f $seq.full 83 status=0