Re: [Qemu-devel] [PATCH v4 0/3] backup: Use copy offloading

[Jeff Cody]

On Tue, Jul 03, 2018 at 10:37:55AM +0800, Fam Zheng wrote:
> v4: Rebase to master.
>     Pick up Stefan's rev-bys.
>     Include a block/io.c fix to fix a new issue caused by recent block/io.c
>     change - our drive-backup cases in iotests exposes the bug loudly.
> 
> This enhances the backup job to make use of the copy offloading API. It
> eliminates the necessity to use the bounce buffer as well as speeding up the
> copy operation when the backend supports it.
> 
> v3: Don't forget coroutine_fn. [Stefan]
>     Don't reset job->use_copy_range redundantly. [Stefan]
> 
> v2: Use helper functions. [Stefan]
> 
> Fam Zheng (3):
>   block: Fix parameter checking in bdrv_co_copy_range_internal
>   block: Honour BDRV_REQ_NO_SERIALISING in copy range
>   backup: Use copy offloading
> 
>  block/backup.c        | 150 ++++++++++++++++++++++++++++++------------
>  block/io.c            |  35 +++++-----
>  block/trace-events    |   1 +
>  include/block/block.h |   5 +-
>  4 files changed, 132 insertions(+), 59 deletions(-)
> 
> -- 
> 2.17.1
> 

Thanks,

Applied to my block branch:

git://github.com/codyprime/qemu-kvm-jtc block

-Jeff