Re: [Qemu-devel] [PATCH 5/5] vmdk: add bdrv_co_write_zeroes

[Stefan Hajnoczi]

On Fri, Apr 19, 2013 at 11:48:45AM +0800, Fam Zheng wrote:
> From: Feiran Zheng <address@hidden>
> 
> Use special offset to write zeroes efficiently, when zeroed-grain GTE is
> available. If zero-write an allocated cluster, cluster is leaked because
> its offset pointer is overwritten by "0x1".
> 
> Signed-off-by: Fam Zheng <address@hidden>
> ---
>  block/vmdk.c | 63 
> +++++++++++++++++++++++++++++++++++++++++++++++-------------
>  1 file changed, 50 insertions(+), 13 deletions(-)

Do existing qemu-iotests zero write tests cases cover this?  Do you need
to add vmdk to their list of supported formats?

Stefan