r11: - Support HDIO_GETGEO and HDIO_GET_IDENTITY.  Works, but probably is incorrect.  Needs exhaustive testing. - Restructure ioctl()
r11: - Support HDIO_GETGEO and HDIO_GET_IDENTITY.  Works, but probably is
incorrect.  Needs exhaustive testing.
- Restructure ioctl()

cmusatyalab/openisr,cmusatyalab/openisr,cmusatyalab/openisr,cmusatyalab/openisr,cmusatyalab/openisr