scsi_debug: num_parts, ptype and (re-)scans

From: 	Douglas Gilbert <dougg@torque.net>

Changes in version 1.73:
  - 'num_parts' parameter to specify 0 to 4 partitions
  - 'ptype' to specify (or change via sysfs) SCSI
    peripheral device type
  - support ability to increase the number of targets
    and/or luns then re-scan a scsi_debug host
  - remove redundant trailing spaces

The new facilties are described at:
http://www.torque.net/sg/sdebug26.html
A tarball of driver (version 1.73) is also there.
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
(conflict resolution)

drivers/scsi/scsi_debug.h

@@ -5,7 +5,7 @@
 static int scsi_debug_slave_alloc(struct scsi_device *);
 static int scsi_debug_slave_configure(struct scsi_device *);
 static void scsi_debug_slave_destroy(struct scsi_device *);
-static int scsi_debug_queuecommand(struct scsi_cmnd *, 
+static int scsi_debug_queuecommand(struct scsi_cmnd *,
 				   void (*done) (struct scsi_cmnd *));
 static int scsi_debug_ioctl(struct scsi_device *, int, void *);
 static int scsi_debug_biosparam(struct scsi_device *, struct block_device *,
@@ -17,9 +17,6 @@ static int scsi_debug_host_reset(struct scsi_cmnd *);
 static int scsi_debug_proc_info(struct Scsi_Host *, char *, char **, off_t, int, int);
 static const char * scsi_debug_info(struct Scsi_Host *);
 
-/*
- * This driver is written for the lk 2.5 series
- */
 #define SCSI_DEBUG_CANQUEUE  255 	/* needs to be >= 1 */
 
 #define SCSI_DEBUG_MAX_CMD_LEN 16