[SCSI] Remove host_active

It isn't used anywhere anymore

drivers/scsi/hosts.c

@@ -392,7 +392,6 @@ struct Scsi_Host * scsi_register(Scsi_Host_Template *shost_tp, int xtr_bytes)
 
 	spin_lock_init(&shost->default_lock);
 	scsi_assign_lock(shost, &shost->default_lock);
-	atomic_set(&shost->host_active,0);
 	INIT_LIST_HEAD(&shost->my_devices);
 
 	init_waitqueue_head(&shost->host_wait);

drivers/scsi/hosts.h

@@ -396,7 +396,6 @@ struct Scsi_Host
     unsigned int            eh_kill:1; /* set when killing the eh thread */
     wait_queue_head_t       host_wait;
     Scsi_Host_Template    * hostt;
-    atomic_t                host_active; /* commands checked out */
     volatile unsigned short host_busy;   /* commands actually active on low-level */
     volatile unsigned short host_failed; /* commands that failed. */
     

drivers/scsi/scsi.c

@@ -994,11 +994,11 @@ static void scsi_softirq(struct softirq_action *h)
 				 * Here we have a fatal error of some sort.
 				 * Turn it over to the error handler.
 				 */
-				SCSI_LOG_MLCOMPLETE(3, printk("Command failed %p %x active=%d busy=%d failed=%d\n",
-						    SCpnt, SCpnt->result,
-				  atomic_read(&SCpnt->device->host->host_active),
-						  SCpnt->device->host->host_busy,
-					      SCpnt->device->host->host_failed));
+				SCSI_LOG_MLCOMPLETE(3,
+					printk("Command failed %p %x busy=%d failed=%d\n",
+						SCpnt, SCpnt->result,
+						SCpnt->device->host->host_busy,
+						SCpnt->device->host->host_failed));
 
 				/*
 				 * Dump the sense information too.

drivers/scsi/scsi_error.c

@@ -131,23 +131,22 @@ int scsi_delete_timer(Scsi_Cmnd *scmd)
  **/
 void scsi_times_out(Scsi_Cmnd *scmd)
 {
+	struct Scsi_Host *shost = scmd->device->host;
+
 	/* Set the serial_number_at_timeout to the current serial_number */
 	scmd->serial_number_at_timeout = scmd->serial_number;
 
 	scsi_eh_eflags_set(scmd, SCSI_EH_CMD_TIMEOUT | SCSI_EH_CMD_ERR);
 
-	if( scmd->device->host->eh_wait == NULL ) {
+	if (unlikely(shost->eh_wait == NULL)) {
 		panic("Error handler thread not present at %p %p %s %d",
-		      scmd, scmd->device->host, __FILE__, __LINE__);
+		      scmd, shost, __FILE__, __LINE__);
 	}
 
-	scsi_host_failed_inc_and_test(scmd->device->host);
+	scsi_host_failed_inc_and_test(shost);
 
-	SCSI_LOG_TIMEOUT(3, printk("Command timed out active=%d busy=%d "
-				   " failed=%d\n",
-				   atomic_read(&scmd->device->host->host_active),
-				   scmd->device->host->host_busy,
-				   scmd->device->host->host_failed));
+	SCSI_LOG_TIMEOUT(3, printk("Command timed out busy=%d failed=%d\n",
+				   shost->host_busy, shost->host_failed));
 }
 
 /**

drivers/scsi/scsi_proc.c

@@ -345,10 +345,9 @@ static void scsi_dump_status(int level)
 	i = 0;
 	for (shpnt = scsi_host_get_next(NULL); shpnt;
 	     shpnt = scsi_host_get_next(shpnt)) {
-		printk(KERN_INFO " %d %d %d : %d %d\n",
+		printk(KERN_INFO " %d %d : %d %d\n",
 		       shpnt->host_failed,
 		       shpnt->host_busy,
-		       atomic_read(&shpnt->host_active),
 		       shpnt->host_blocked,
 		       shpnt->host_self_blocked);
 	}