| #!/bin/bash |
| # |
| # Resizing images |
| # |
| # Copyright (C) 2010 IBM, Corp. |
| # |
| # This program is free software; you can redistribute it and/or modify |
| # it under the terms of the GNU General Public License as published by |
| # the Free Software Foundation; either version 2 of the License, or |
| # (at your option) any later version. |
| # |
| # This program is distributed in the hope that it will be useful, |
| # but WITHOUT ANY WARRANTY; without even the implied warranty of |
| # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| # GNU General Public License for more details. |
| # |
| # You should have received a copy of the GNU General Public License |
| # along with this program. If not, see <http://www.gnu.org/licenses/>. |
| # |
| |
| # creator |
| owner=stefanha@linux.vnet.ibm.com |
| |
| seq=`basename $0` |
| echo "QA output created by $seq" |
| |
| status=1 # failure is the default! |
| |
| _cleanup() |
| { |
| _cleanup_test_img |
| } |
| trap "_cleanup; exit \$status" 0 1 2 3 15 |
| |
| # get standard environment, filters and checks |
| . ./common.rc |
| . ./common.filter |
| . ./common.pattern |
| |
| _supported_fmt raw qcow2 qed luks |
| _supported_proto file sheepdog rbd nfs |
| _supported_os Linux |
| |
| echo "=== Creating image" |
| echo |
| small_size=$((128 * 1024 * 1024)) |
| big_size=$((384 * 1024 * 1024)) |
| _make_test_img $small_size |
| |
| echo |
| echo "=== Writing whole image" |
| io_pattern write 0 $small_size 0 1 0xc5 |
| _check_test_img |
| |
| echo |
| echo "=== Resizing image" |
| $QEMU_IO "$TEST_IMG" <<EOF | _filter_qemu_io |
| length |
| truncate $big_size |
| length |
| EOF |
| _check_test_img |
| |
| # bdrv_truncate() doesn't zero the new space, so we need to do that explicitly. |
| # We still want to test automatic zeroing for other formats even though |
| # bdrv_truncate() doesn't guarantee it. |
| if [ "$IMGFMT" == "luks" ]; then |
| $QEMU_IO -c "write -z $small_size $((big_size - small_size))" "$TEST_IMG" > /dev/null |
| fi |
| |
| echo |
| echo "=== Verifying image size after reopen" |
| $QEMU_IO -c "length" "$TEST_IMG" |
| |
| echo |
| echo "=== Verifying resized image" |
| io_pattern read 0 $small_size 0 1 0xc5 |
| io_pattern read $small_size $(($big_size - $small_size)) 0 1 0 |
| |
| # success, all done |
| echo "*** done" |
| rm -f $seq.full |
| status=0 |
