Re: [PATCH 2/2] Add BLKPG_GET_PARTITION operation

[Karel Zak]

On Wed, Nov 30, 2011 at 10:23:44PM -0500, Phillip Susi wrote:
> -----BEGIN PGP SIGNED MESSAGE-----
> Hash: SHA1
> 
> Add a new operation to the BLKPG ioctl to read the partition.
> This allows user space to find the current start and length
> of a partition without having to open the partition and use
> the long depreciated HDIO_GETGEO ioctl.

 $ cat /sys/block/sda/sda1/{size,start}
 4096000
 2048

 ...is probably the best way if you want to avoid problems with
 permissions and deprecated (or all) ioctls :-)

    Karel

-- 
 Karel Zak  <kzak@xxxxxxxxxx>
 http://karelzak.blogspot.com
--
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/