1 files changed, 23 insertions, 17 deletions

diff --git a/drivers/scsi/scsi_lib.c b/drivers/scsi/scsi_lib.c
index 340c569d453..36521a0ac54 100644
--- a/drivers/scsi/scsi_lib.c
+++ b/drivers/scsi/scsi_lib.c
@@ -2444,6 +2444,7 @@ EXPORT_SYMBOL_GPL(scsi_internal_device_block);
 /**
  * scsi_internal_device_unblock - resume a device after a block request
  * @sdev:	device to resume
+ * @new_state:	state to set devices to after unblocking
  *
  * Called by scsi lld's or the midlayer to restart the device queue
  * for the previously suspended scsi device.  Called from interrupt or
@@ -2453,25 +2454,30 @@ EXPORT_SYMBOL_GPL(scsi_internal_device_block);
  *
  * Notes:       
  *	This routine transitions the device to the SDEV_RUNNING state
- *	(which must be a legal transition) allowing the midlayer to
- *	goose the queue for this device.  This routine assumes the 
- *	host_lock is held upon entry.
+ *	or to one of the offline states (which must be a legal transition)
+ *	allowing the midlayer to goose the queue for this device. This
+ *	routine assumes the host_lock is held upon entry.
  */
 int
-scsi_internal_device_unblock(struct scsi_device *sdev)
+scsi_internal_device_unblock(struct scsi_device *sdev,
+			     enum scsi_device_state new_state)
 {
 	struct request_queue *q = sdev->request_queue; 
 	unsigned long flags;
-	
-	/* 
-	 * Try to transition the scsi device to SDEV_RUNNING
-	 * and goose the device queue if successful.  
+
+	/*
+	 * Try to transition the scsi device to SDEV_RUNNING or one of the
+	 * offlined states and goose the device queue if successful.
 	 */
 	if (sdev->sdev_state == SDEV_BLOCK)
-		sdev->sdev_state = SDEV_RUNNING;
-	else if (sdev->sdev_state == SDEV_CREATED_BLOCK)
-		sdev->sdev_state = SDEV_CREATED;
-	else if (sdev->sdev_state != SDEV_CANCEL &&
+		sdev->sdev_state = new_state;
+	else if (sdev->sdev_state == SDEV_CREATED_BLOCK) {
+		if (new_state == SDEV_TRANSPORT_OFFLINE ||
+		    new_state == SDEV_OFFLINE)
+			sdev->sdev_state = new_state;
+		else
+			sdev->sdev_state = SDEV_CREATED;
+	} else if (sdev->sdev_state != SDEV_CANCEL &&
 		 sdev->sdev_state != SDEV_OFFLINE)
 		return -EINVAL;
 
@@ -2512,26 +2518,26 @@ EXPORT_SYMBOL_GPL(scsi_target_block);
 static void
 device_unblock(struct scsi_device *sdev, void *data)
 {
-	scsi_internal_device_unblock(sdev);
+	scsi_internal_device_unblock(sdev, *(enum scsi_device_state *)data);
 }
 
 static int
 target_unblock(struct device *dev, void *data)
 {
 	if (scsi_is_target_device(dev))
-		starget_for_each_device(to_scsi_target(dev), NULL,
+		starget_for_each_device(to_scsi_target(dev), data,
 					device_unblock);
 	return 0;
 }
 
 void
-scsi_target_unblock(struct device *dev)
+scsi_target_unblock(struct device *dev, enum scsi_device_state new_state)
 {
 	if (scsi_is_target_device(dev))
-		starget_for_each_device(to_scsi_target(dev), NULL,
+		starget_for_each_device(to_scsi_target(dev), &new_state,
 					device_unblock);
 	else
-		device_for_each_child(dev, NULL, target_unblock);
+		device_for_each_child(dev, &new_state, target_unblock);
 }
 EXPORT_SYMBOL_GPL(scsi_target_unblock);