path: root/tests
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authorJohn Snow <jsnow@redhat.com>2017-07-17 20:34:21 -0400
committerKevin Wolf <kwolf@redhat.com>2017-07-18 15:27:20 +0200
commit2a32c6e82ed24d837ce7af346ffc93113f0164b5 (patch)
tree7eed094eec1053c889ff149c411ccb904abb2c41 /tests
parent7c8730d45f63b76588da5ea0d4eff73a0bcae188 (diff)
blockdev: move BDRV_O_NO_BACKING option forward
For both external_snapshot_prepare and qmp_drive_mirror, we eventually append the option BDRV_O_NO_BACKING. However, we generally do so after we create the image. To accommodate image creation wanting to verify that a backing file exists or not, add this option prior to create to override checking the existence of the backing file. This prevents QEMU from trying to re-open a backing file that's already in use (thanks to qcow2 locking). Signed-off-by: John Snow <jsnow@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Diffstat (limited to 'tests')
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