Am 24.04.2010 10:20, schrieb Stefan Hajnoczi: > This patch adds an image resize grow test to ensure that existing data > is not lost during grow and new space is zeroed. > > Signed-off-by: Stefan Hajnoczi <stefa...@linux.vnet.ibm.com> > --- > 025 | 73 > +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ > 025.out | 25 +++++++++++++++++++++ > group | 1 + > 3 files changed, 99 insertions(+), 0 deletions(-) > create mode 100755 025 > create mode 100644 025.out > > diff --git a/025 b/025 > new file mode 100755 > index 0000000..09e5b4d > --- /dev/null > +++ b/025 > @@ -0,0 +1,73 @@ > +#!/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=stefa...@linux.vnet.ibm.com > + > +seq=`basename $0` > +echo "QA output created by $seq" > + > +here=`pwd` > +tmp=/tmp/$$ > +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 > +_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 -c "truncate $big_size" $TEST_IMG > +_check_test_img
Here we could extend the test to check if the right image size is used if the image isn't re-opened. Something like this: $QEMU_IO $TEST_IMG <<EOF length truncate $big_size length EOF Otherwise the test case looks good to me. We'll probably want another one for shrinking images once this is supported by qcow2. Kevin
