Re: [Xen-devel] [RFC PATCH 4/6] libxl: add guest writable xenstore area for driver versions

[Ian Jackson <Ian.Jackson@xxxxxxxxxxxxx>]

Paul Durrant writes ("[RFC PATCH 4/6] libxl: add guest writable xenstore area 
for driver versions"):
> docs/misc/xenstore-paths documents a path format that can be used by
> guests to supply version information for PV drivers.
> 
> This patch creates a guest writable ~/drivers area for these paths.
> 
> Signed-off-by: Paul Durrant <paul.durrant@xxxxxxxxxx>
> Cc: Ian Jackson <ian.jackson@xxxxxxxxxxxxx>
> Cc: Stefano Stabellini <stefano.stabellini@xxxxxxxxxxxxx>
> Cc: Ian Campbell <ian.campbell@xxxxxxxxxx>
> Cc: Wei Liu <wei.liu2@xxxxxxxxxx>
> ---
>  tools/libxl/libxl_create.c | 3 +++
>  1 file changed, 3 insertions(+)
> 
> diff --git a/tools/libxl/libxl_create.c b/tools/libxl/libxl_create.c
> index cc82311..389427f 100644
> --- a/tools/libxl/libxl_create.c
> +++ b/tools/libxl/libxl_create.c
> @@ -648,6 +648,9 @@ retry_transaction:
>      libxl__xs_mkdir(gc, t,
>                      libxl__sprintf(gc, "%s/data", dom_path),
>                      rwperm, ARRAY_SIZE(rwperm));
> +    libxl__xs_mkdir(gc, t,
> +                    libxl__sprintf(gc, "%s/drivers", dom_path),
> +                    rwperm, ARRAY_SIZE(rwperm));

I see there are already many of these open-coded calls to
libxl__xs_mkdir with libxl__sprintf (rather than GCSPRINTF).  Oh well.

Ian.

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