Re: [PATCH 2/2] genhd, efi: add efi partition metadata to hd_structs

[Kay Sievers]

On Tue, Aug 3, 2010 at 23:35, Will Drewry <wad@xxxxxxxxxxxx> wrote:
> This change extends the partition_meta_info structure to
> support EFI GPT-specific metadata and ensures that data
> is copied in on partition scanning.
>
> Adding this information would make it possible to identify a
> partition by GUID using something like disk_part_iter_*(),
> calls that make hd_struct accessible, or even class_find_device.

Wow, you are fast. :) Sounds and looks good to me.

I guess we should assign the meta structure only after all values are
filled in? Otherwise we could get partial reads from a possible user?

Did you already test to put a lookup-call to the in-kernel mounter, if
we use some special partition table uuid identifier for root=? That
would be nice to see, if all that works as expected, and we can get to
the data we collect.

Kay
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