On 01/26/2017 04:18 AM, Daniel P. Berrange wrote:
> Instead of requiring separate input/output buffers for
> encrypting data, change encrypt_sectors() to assume
> use of a single buffer, encrypting in place. One current
> caller uses the same buffer for input/output already
> and the other two callers are easily converted to do so.
> 
> Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
> ---
>  block/qcow.c | 44 +++++++++++++++-----------------------------
>  1 file changed, 15 insertions(+), 29 deletions(-)

Reviewed-by: Eric Blake <eblake@redhat.com>

-- 
Eric Blake   eblake redhat com    +1-919-301-3266
Libvirt virtualization library http://libvirt.org