On 07.09.2015 15:26, Kevin Wolf wrote:
> On return, either all new options should be applied to BDRVQcowState (on
> success), or all of the old settings should be preserved (on failure).
> 
> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
> ---
>  block/qcow2.c | 57 +++++++++++++++++++++++++++++++++++----------------------
>  1 file changed, 35 insertions(+), 22 deletions(-)

Reviewed-by: Max Reitz <mreitz@redhat.com>