[dm-devel] Re: [PATCHSET] block,scsi,libata: implement alt_size
Tejun Heo
tj at kernel.org
Thu Apr 30 01:13:23 UTC 2009
Tejun Heo wrote:
> Hello,
>
> This patchset implements alt_size, which is a size hint to the users
> of a block device. It's primarily to communicate the BIOS (HPA) size
> on ATA devices to userland, so that dmraid can consider it when trying
> to figure out BIOS raid layout. This is critical as dmraid can be
> tricked into assemblying the wrong raid when fed with the unlocked
> size and if the disk content is right (or, rather, wrong) and good
> number of distros are shipping with ignore_hpa=1 as default.
PING.
--
tejun
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