Re: [Xen-devel] [PATCH] blkif.h: document physical-device node

[Ian Campbell <ian.campbell@xxxxxxxxxx>]

On Tue, 2015-07-07 at 16:48 +0100, Wei Liu wrote:
> This node is used by toolstack (libxl, hotplug script) and blkback.
> 
> Signed-off-by: Wei Liu <wei.liu2@xxxxxxxxxx>
> ---
> Cc: Ian Campbell <ian.campbell@xxxxxxxxxx>
> Cc: Ian Jackson <ian.jackson@xxxxxxxxxxxxx>
> Cc: Roger Pau Monne <roger.pau@xxxxxxxxxx>
> Cc: David Vrabel <david.vrabel@xxxxxxxxxx>
> Cc: Konrad Rzeszutek Wilk <konrad.wilk@xxxxxxxxxx>
> Cc: George Dunlap <george.dunlap@xxxxxxxxxxxxx>
> 
> I notice this when I was looking at George's patch series to fix hotplug
> scripts. If anyone has better idea how we can document this feel free to
> provide alternative.

It looks perfectly fine to me, maybe you might want to insert a "block"
before the device, but in any case:

Acked-by: Ian Campbell <ian.campbell@xxxxxxxxxx>

> ---
>  xen/include/public/io/blkif.h | 6 ++++++
>  1 file changed, 6 insertions(+)
> 
> diff --git a/xen/include/public/io/blkif.h b/xen/include/public/io/blkif.h
> index 6baf7fb..8f0f9a6 100644
> --- a/xen/include/public/io/blkif.h
> +++ b/xen/include/public/io/blkif.h
> @@ -92,6 +92,12 @@
>   *      backend driver to open the backing device.  (e.g. the path to the
>   *      file or block device representing the backing store.)
>   *
> + * physical-device
> + *      Values:         "MAJOR:MINOR"
> + *
> + *      MAJOR and MINOR are the major number and minor number of the
> + *      backing device respectively.
> + *
>   * type
>   *      Values:         "file", "phy", "tap"
>   *



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