Re: [PATCHSET] block,scsi,libata: implement alt_size

[Jeff Garzik]

Tejun Heo wrote:
> Hello,
>
> Jeff Garzik wrote:
> > <shrug>  I suppose...
> >
> > It just seems like a nasty hack, but unfortunately I don't see
> > anyone stepping up to do it properly -- with a DM device
> > automatically layered on top that splits the device into separate
> > regions: one block device for the 'regular' area, and one for the
> > HPA.
>
> Isn't that more hacky?  I don't know.  All that dm needs to know is
> the location of the metadata which is located w.r.t. the end of the
> device which might be at a different location if BIOS tried to pull
> silly stunts.  So, exporting the size BIOS might have used seems like
> a straight forward solution to me.

"<shrug> I suppose" is basically a reluctant ack, in the absence of 
other solutions :)


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