lk 2.5.31 scsi_debug version 1.62

Here is an update for scsi_debug that utilizes driverfs support for per driver parameters added in lk 2.5.31

Tarball
http://www.torque.net/sg/p/scsi_debug_162.tgz
Patch:
http://www.torque.net/sg/p/scsi_debug_162_lk2531.diff.gz

1.62 changes:
- driverfs support for these options (more to come):
/driverfs/bus/scsi/drivers/scsi_debug/delay [rw] /driverfs/bus/scsi/drivers/scsi_debug/num_devs [r] /driverfs/bus/scsi/drivers/scsi_debug/opts [rw]
- start using some C99
- fdisk requires EINVAL from unsupported ioctls (scsi_debug previously used ENOTTY)

1.61 changes:
- simulate delayed responses, controlled by 'scsi_debug_delay'
- support REPORT LUNS
- support more MODE SENSE pages
- [following Doug Ledford's suggestion] do autosense (i.e. set Scsi_Cmnd::sense_buffer array appropriately when a status of CHECK CONDITION is set)
- minor driverfs support
- start adding error injection logic, see "scsi_debug_every_nth"

Doug Gilbert