[SCSI] modify change_queue_depth to take in reason why it is being called

[safe/jmp/linux-2.6] / drivers / scsi / ibmvscsi / ibmvfc.c

diff --git a/drivers/scsi/ibmvscsi/ibmvfc.c b/drivers/scsi/ibmvscsi/ibmvfc.c
index bc9beb8..87b536a 100644 (file)
--- a/drivers/scsi/ibmvscsi/ibmvfc.c
+++ b/drivers/scsi/ibmvscsi/ibmvfc.c
@@ -2764,12 +2764,17 @@ static int ibmvfc_slave_configure(struct scsi_device *sdev)
  * ibmvfc_change_queue_depth - Change the device's queue depth
  * @sdev:      scsi device struct
  * @qdepth:    depth to set
+ * @reason:    calling context
  *
  * Return value:
  *     actual depth set
  **/
-static int ibmvfc_change_queue_depth(struct scsi_device *sdev, int qdepth)
+static int ibmvfc_change_queue_depth(struct scsi_device *sdev, int qdepth,
+                                    int reason)
 {
+       if (reason != SCSI_QDEPTH_DEFAULT)
+               return -EOPNOTSUPP;
+
        if (qdepth > IBMVFC_MAX_CMDS_PER_LUN)
                qdepth = IBMVFC_MAX_CMDS_PER_LUN;