Re: [Qemu-devel] [PATCH v4 2/9] numa: split out NumaOptions parsing into parse_NumaOptions()

[Eduardo Habkost <ehabkost@redhat.com>]

On Mon, Mar 12, 2018 at 02:11:08PM +0100, Igor Mammedov wrote:
> it will allow to reuse parse_NumaOptions() for parsing
> configuration commands received via QMP interface
> 
> Signed-off-by: Igor Mammedov <imammedo@redhat.com>
> ---
>  include/sysemu/numa.h |  1 +
>  numa.c                | 48 +++++++++++++++++++++++++++++-------------------
>  2 files changed, 30 insertions(+), 19 deletions(-)
> 
> diff --git a/include/sysemu/numa.h b/include/sysemu/numa.h
> index 21713b7..7a0ae75 100644
> --- a/include/sysemu/numa.h
> +++ b/include/sysemu/numa.h
> @@ -22,6 +22,7 @@ struct NumaNodeMem {
>  };
>  
>  extern NodeInfo numa_info[MAX_NODES];
> +int parse_numa(void *opaque, QemuOpts *opts, Error **errp);
>  void parse_numa_opts(MachineState *ms);
>  void numa_complete_configuration(MachineState *ms);
>  void query_numa_node_mem(NumaNodeMem node_mem[]);
> diff --git a/numa.c b/numa.c
> index 126c649..2b1d292 100644
> --- a/numa.c
> +++ b/numa.c
> @@ -169,28 +169,11 @@ static void parse_numa_distance(NumaDistOptions *dist, Error **errp)
>      have_numa_distance = true;
>  }
>  
> -static int parse_numa(void *opaque, QemuOpts *opts, Error **errp)
> +static
> +void parse_NumaOptions(MachineState *ms, NumaOptions *object, Error **errp)

I wonder if we should rename the parse_numa_{node,distance}()
functions to configure_numa_{node,distance}(), and this one
configure_numa().  These functions don't parse anything, anymore.


>  {
> -    NumaOptions *object = NULL;
> -    MachineState *ms = opaque;
>      Error *err = NULL;
>  
> -    {
> -        Visitor *v = opts_visitor_new(opts);
> -        visit_type_NumaOptions(v, NULL, &object, &err);
> -        visit_free(v);
> -    }
> -
> -    if (err) {
> -        goto end;
> -    }
> -
> -    /* Fix up legacy suffix-less format */
> -    if ((object->type == NUMA_OPTIONS_TYPE_NODE) && object->u.node.has_mem) {
> -        const char *mem_str = qemu_opt_get(opts, "mem");
> -        qemu_strtosz_MiB(mem_str, NULL, &object->u.node.mem);
> -    }
> -
>      switch (object->type) {
>      case NUMA_OPTIONS_TYPE_NODE:
>          parse_numa_node(ms, &object->u.node, &err);
> @@ -224,6 +207,33 @@ static int parse_numa(void *opaque, QemuOpts *opts, Error **errp)
>      }
>  
>  end:
> +    if (err) {
> +        error_propagate(errp, err);
> +    }

"if (err)" is not necessary here.  See
scripts/coccinelle/error_propagate_null.cocci.


> +}
> +
> +int parse_numa(void *opaque, QemuOpts *opts, Error **errp)
> +{
> +    NumaOptions *object = NULL;
> +    MachineState *ms = MACHINE(opaque);
> +    Error *err = NULL;
> +    Visitor *v = opts_visitor_new(opts);
> +
> +    visit_type_NumaOptions(v, NULL, &object, &err);
> +    visit_free(v);
> +    if (err) {
> +        goto end;
> +    }
> +
> +    /* Fix up legacy suffix-less format */
> +    if ((object->type == NUMA_OPTIONS_TYPE_NODE) && object->u.node.has_mem) {
> +        const char *mem_str = qemu_opt_get(opts, "mem");
> +        qemu_strtosz_MiB(mem_str, NULL, &object->u.node.mem);
> +    }
> +
> +    parse_NumaOptions(ms, object, &err);
> +
> +end:
>      qapi_free_NumaOptions(object);
>      if (err) {
>          error_report_err(err);

We can fix this one too while at it.

The rest of the patch looks good.

-- 
Eduardo