diff -ur orig/drivers/scsi/scsi.h linux-rpc/drivers/scsi/scsi.h
--- orig/drivers/scsi/scsi.h	Mon Aug  5 13:31:23 2002
+++ linux-rpc/drivers/scsi/scsi.h	Tue Sep 24 15:57:54 2002
@@ -598,6 +598,7 @@
 	unsigned changed:1;	/* Data invalid due to media change */
 	unsigned busy:1;	/* Used to prevent races */
 	unsigned lockable:1;	/* Able to prevent media removal */
+	unsigned locked:1;	/* Media removal disabled */
 	unsigned borken:1;	/* Tell the Seagate driver to be 
 				 * painfully slow on this device */
 	unsigned tagged_supported:1;	/* Supports SCSI-II tagged queuing */
diff -ur orig/drivers/scsi/scsi_ioctl.c linux-rpc/drivers/scsi/scsi_ioctl.c
--- orig/drivers/scsi/scsi_ioctl.c	Mon Aug  5 13:31:24 2002
+++ linux-rpc/drivers/scsi/scsi_ioctl.c	Tue Sep 24 16:38:24 2002
@@ -153,6 +153,29 @@
 	return result;
 }
 
+int scsi_set_medium_removal(Scsi_Device *dev, char state)
+{
+	char scsi_cmd[MAX_COMMAND_SIZE];
+	int ret;
+
+	if (!dev->removable || !dev->lockable)
+		return 0;
+
+	scsi_cmd[0] = ALLOW_MEDIUM_REMOVAL;
+	scsi_cmd[1] = (dev->scsi_level <= SCSI_2) ? (dev->lun << 5) : 0;
+	scsi_cmd[2] = 0;
+	scsi_cmd[3] = 0;
+	scsi_cmd[4] = state;
+	scsi_cmd[5] = 0;
+
+	ret = ioctl_internal_command(dev, scsi_cmd, IOCTL_NORMAL_TIMEOUT, NORMAL_RETRIES);
+
+	if (ret == 0)
+		dev->locked = state == SCSI_REMOVAL_PREVENT;
+
+	return ret;
+}
+
 /*
  * This interface is depreciated - users should use the scsi generic (sg)
  * interface instead, as this is a more flexible approach to performing
@@ -449,24 +472,9 @@
 		return scsi_ioctl_send_command((Scsi_Device *) dev,
 					     (Scsi_Ioctl_Command *) arg);
 	case SCSI_IOCTL_DOORLOCK:
-		if (!dev->removable || !dev->lockable)
-			return 0;
-		scsi_cmd[0] = ALLOW_MEDIUM_REMOVAL;
-		scsi_cmd[1] = cmd_byte1;
-		scsi_cmd[2] = scsi_cmd[3] = scsi_cmd[5] = 0;
-		scsi_cmd[4] = SCSI_REMOVAL_PREVENT;
-		return ioctl_internal_command((Scsi_Device *) dev, scsi_cmd,
-				   IOCTL_NORMAL_TIMEOUT, NORMAL_RETRIES);
-		break;
+		return scsi_set_medium_removal(dev, SCSI_REMOVAL_PREVENT);
 	case SCSI_IOCTL_DOORUNLOCK:
-		if (!dev->removable || !dev->lockable)
-			return 0;
-		scsi_cmd[0] = ALLOW_MEDIUM_REMOVAL;
-		scsi_cmd[1] = cmd_byte1;
-		scsi_cmd[2] = scsi_cmd[3] = scsi_cmd[5] = 0;
-		scsi_cmd[4] = SCSI_REMOVAL_ALLOW;
-		return ioctl_internal_command((Scsi_Device *) dev, scsi_cmd,
-				   IOCTL_NORMAL_TIMEOUT, NORMAL_RETRIES);
+		return scsi_set_medium_removal(dev, SCSI_REMOVAL_ALLOW);
 	case SCSI_IOCTL_TEST_UNIT_READY:
 		scsi_cmd[0] = TEST_UNIT_READY;
 		scsi_cmd[1] = cmd_byte1;
diff -ur orig/drivers/scsi/sd.c linux-rpc/drivers/scsi/sd.c
--- orig/drivers/scsi/sd.c	Mon Aug  5 13:31:25 2002
+++ linux-rpc/drivers/scsi/sd.c	Tue Sep 24 16:07:45 2002
@@ -524,7 +524,7 @@
 	if (SDev->removable)
 		if (SDev->access_count==1)
 			if (scsi_block_when_processing_errors(SDev))
-				scsi_ioctl(SDev, SCSI_IOCTL_DOORLOCK, NULL);
+				scsi_set_medium_removal(SDev, SCSI_REMOVAL_PREVENT);
 
 	
 	return 0;
@@ -553,7 +553,7 @@
 	if (SDev->removable) {
 		if (!SDev->access_count)
 			if (scsi_block_when_processing_errors(SDev))
-				scsi_ioctl(SDev, SCSI_IOCTL_DOORUNLOCK, NULL);
+				scsi_set_medium_removal(SDev, SCSI_REMOVAL_ALLOW);
 	}
 	if (SDev->host->hostt->module)
 		__MOD_DEC_USE_COUNT(SDev->host->hostt->module);
diff -ur orig/drivers/scsi/sr_ioctl.c linux-rpc/drivers/scsi/sr_ioctl.c
--- orig/drivers/scsi/sr_ioctl.c	Mon Aug  5 13:31:26 2002
+++ linux-rpc/drivers/scsi/sr_ioctl.c	Tue Sep 24 16:09:08 2002
@@ -216,9 +216,8 @@
 
 int sr_lock_door(struct cdrom_device_info *cdi, int lock)
 {
-	return scsi_ioctl(scsi_CDs[MINOR(cdi->dev)].device,
-		      lock ? SCSI_IOCTL_DOORLOCK : SCSI_IOCTL_DOORUNLOCK,
-			  0);
+	return scsi_set_medium_removal(scsi_CDs[MINOR(cdi->dev)].device,
+		      lock ? SCSI_REMOVAL_PREVENT : SCSI_REMOVAL_ALLOW);
 }
 
 int sr_drive_status(struct cdrom_device_info *cdi, int slot)