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

[safe/jmp/linux-2.6] / drivers / scsi / libsas / sas_scsi_host.c

diff --git a/drivers/scsi/libsas/sas_scsi_host.c b/drivers/scsi/libsas/sas_scsi_host.c
index 1c558d3..14b1319 100644 (file)
--- a/drivers/scsi/libsas/sas_scsi_host.c
+++ b/drivers/scsi/libsas/sas_scsi_host.c
@@ -820,10 +820,14 @@ void sas_slave_destroy(struct scsi_device *scsi_dev)
                ata_port_disable(dev->sata_dev.ap);
 }
 
-int sas_change_queue_depth(struct scsi_device *scsi_dev, int new_depth)
+int sas_change_queue_depth(struct scsi_device *scsi_dev, int new_depth,
+                          int reason)
 {
        int res = min(new_depth, SAS_MAX_QD);
 
+       if (reason != SCSI_QDEPTH_DEFAULT)
+               return -EOPNOTSUPP;
+
        if (scsi_dev->tagged_supported)
                scsi_adjust_queue_depth(scsi_dev, scsi_get_tag_type(scsi_dev),
                                        res);