Re: [PATCHSET] libata: implement ->set_capacity()

[Tejun Heo]

Hello,

On 05/13/2010 06:38 PM, James Bottomley wrote:
> Instead of making this a block sysfs attribute, since HPA is SATA only,
> why not make it a libata attribute for the disk?
> 
> That way on unlock, you can unlock the HPA and then trigger a partition
> rescan of the block device (BLKRRPART) ... this is an ioctl, so you need
> user context, but you have it if you do it from the sysfs write routine.
> This looks to be a lot simpler than threading it up through SCSI and
> block.

This doesn't have anything to do with sysfs.  It's called from block
partition scan code when it detects a partition extends beyond the end
of the device.  No user intervention at all and the mechanism has been
there for quite some years and possibly predates sysfs.  Am I being
really slow or are you looking at something else?

Thanks.

-- 
tejun
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/