Re: [PATCH v2 1/2] qapi: add filter-node-name option to drive-mirror

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On Fri, Nov 08, 2019 at 13:16:54 +0300, Vladimir Sementsov-Ogievskiy wrote:
> To correspond to blockdev-mirror command and make it possible to
> deprecate implicit filters in the next commit.
> 
> Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@xxxxxxxxxxxxx>
> ---
>  qapi/block-core.json | 7 +++++++
>  blockdev.c           | 2 +-
>  2 files changed, 8 insertions(+), 1 deletion(-)
> 
> diff --git a/qapi/block-core.json b/qapi/block-core.json
> index aa97ee2641..93530d3a13 100644
> --- a/qapi/block-core.json
> +++ b/qapi/block-core.json
> @@ -1992,6 +1992,12 @@
>  # @on-target-error: the action to take on an error on the target,
>  #                   default 'report' (no limitations, since this applies to
>  #                   a different block device than @device).
> +#
> +# @filter-node-name: the node name that should be assigned to the
> +#                    filter driver that the mirror job inserts into the graph
> +#                    above @device. If this option is not given, a node name is
> +#                    autogenerated. (Since: 4.2)
> +#

Speaking for libvirt and based on what I've responded to patch 2 there's
no value in adding this parameter for libvirt's use.

This also kind of means that drive-mirror can be deprecated together
with deprecating -drive.

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