interop/dirty-bitmap.sh

   1 #!/usr/bin/env bash
   2 # nbd client library in userspace
   3 # Copyright Red Hat
   4 #
   5 # This library is free software; you can redistribute it and/or
   6 # modify it under the terms of the GNU Lesser General Public
   7 # License as published by the Free Software Foundation; either
   8 # version 2 of the License, or (at your option) any later version.
   9 #
  10 # This library is distributed in the hope that it will be useful,
  11 # but WITHOUT ANY WARRANTY; without even the implied warranty of
  12 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  13 # Lesser General Public License for more details.
  14 #
  15 # You should have received a copy of the GNU Lesser General Public
  16 # License along with this library; if not, write to the Free Software
  17 # Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
  18
  19 # Test reading qemu dirty-bitmap.
  20
  21 source ../tests/functions.sh
  22 set -e
  23 set -x
  24
  25 requires qemu-img bitmap --help
  26 requires qemu-io --version
  27 requires qemu-nbd --version
  28
  29 # This test uses the qemu-nbd -B option.
  30 if ! qemu-nbd --help | grep -sq -- -B; then
  31     echo "$0: skipping because qemu-nbd does not support the -B option"
  32     exit 77
  33 fi
  34
  35 files="dirty-bitmap.qcow2"
  36 rm -f $files
  37 cleanup_fn rm -f $files
  38
  39 # Create file with intentionally different written areas vs. dirty areas
  40 qemu-img create -f qcow2 dirty-bitmap.qcow2 1M
  41 qemu-io -f qcow2 -c 'w 0 64k' dirty-bitmap.qcow2
  42 qemu-img bitmap --add --enable -f qcow2 dirty-bitmap.qcow2 bitmap0
  43 qemu-io -f qcow2 -c 'w 64k 64k' -c 'w -z 512k 64k' dirty-bitmap.qcow2
  44
  45 # Run the test.
  46 $VG ./dirty-bitmap qemu:dirty-bitmap:bitmap0 \
  47     qemu-nbd -f qcow2 -B bitmap0 dirty-bitmap.qcow2