Re: [Qemu-devel] [PATCH v1 2/2] block/replication: Clarify 'top-id' parameter usage

[Fam Zheng <famz@redhat.com>]

On Tue, 10/11 13:39, Changlong Xie wrote:
> Replication driver only support 'top-id' parameter in secondary side,
> and it must not be supplied in primary side
> 
> Signed-off-by: Changlong Xie <xiecl.fnst@cn.fujitsu.com>
> ---
>  block/replication.c  | 5 +++++
>  qapi/block-core.json | 3 ++-
>  2 files changed, 7 insertions(+), 1 deletion(-)
> 
> diff --git a/block/replication.c b/block/replication.c
> index 5b432d9..1e8284b 100644
> --- a/block/replication.c
> +++ b/block/replication.c
> @@ -101,6 +101,11 @@ static int replication_open(BlockDriverState *bs, QDict *options,
>  
>      if (!strcmp(mode, "primary")) {
>          s->mode = REPLICATION_MODE_PRIMARY;
> +        top_id = qemu_opt_get(opts, REPLICATION_TOP_ID);
> +        if (top_id) {
> +            error_setg(&local_err, "The primary side do not support option top-id");

s/do not/does not/

> +            goto fail;
> +        }
>      } else if (!strcmp(mode, "secondary")) {
>          s->mode = REPLICATION_MODE_SECONDARY;
>          top_id = qemu_opt_get(opts, REPLICATION_TOP_ID);
> diff --git a/qapi/block-core.json b/qapi/block-core.json
> index 4badb97..ec92df4 100644
> --- a/qapi/block-core.json
> +++ b/qapi/block-core.json
> @@ -2197,7 +2197,8 @@
>  # @mode: the replication mode
>  #
>  # @top-id: #optional In secondary mode, node name or device ID of the root
> -#          node who owns the replication node chain. Ignored in primary mode.
> +#          node who owns the replication node chain. Must not be given in
> +#          primary mode.
>  #
>  # Since: 2.8
>  ##
> -- 
> 1.9.3
> 
> 
> 
>