Re: [Qemu-devel] [RFC PATCH 08/11] qcow2: Add basic data-file infrastructure

[Eric Blake]

On 1/31/19 11:55 AM, Kevin Wolf wrote:
> This adds a .bdrv_open option to specify the external data file node.
> 
> Signed-off-by: Kevin Wolf <address@hidden>
> ---
>  qapi/block-core.json |  3 ++-
>  block/qcow2.h        |  4 +++-
>  block/qcow2.c        | 25 +++++++++++++++++++++++--
>  3 files changed, 28 insertions(+), 4 deletions(-)
> 
> diff --git a/qapi/block-core.json b/qapi/block-core.json
> index 7f6b4b3ddd..fc46396079 100644
> --- a/qapi/block-core.json
> +++ b/qapi/block-core.json
> @@ -2928,7 +2928,8 @@
>              '*l2-cache-entry-size': 'int',
>              '*refcount-cache-size': 'int',
>              '*cache-clean-interval': 'int',
> -            '*encrypt': 'BlockdevQcow2Encryption' } }
> +            '*encrypt': 'BlockdevQcow2Encryption',
> +            '*data-file': 'BlockdevRef' } }

Missing docs and a '(since 4.0)' tag. Then again, it's still RFC, so
that's understandable for this draft.

-- 
Eric Blake, Principal Software Engineer
Red Hat, Inc.           +1-919-301-3226
Virtualization:  qemu.org | libvirt.org

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