[dm-devel] Re: [PATCHSET] block,scsi,libata: implement alt_size
Jeff Garzik
jeff at garzik.org
Thu Apr 30 20:00:09 UTC 2009
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 :)
More information about the dm-devel
mailing list