[S390] cio async subchannel reprobe.

Changes in the DASD driver require an asynchronous implementation of the
subchannel reprobe loop. This loop was so far only used by the blacklisting
mechanism but is now available to all CCW device drivers.

Signed-off-by: Peter Oberparleiter <peter.oberparleiter@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
diff --git a/drivers/s390/cio/device.c b/drivers/s390/cio/device.c
index 8e3053c..eafde43 100644
--- a/drivers/s390/cio/device.c
+++ b/drivers/s390/cio/device.c
@@ -133,8 +133,8 @@
 
 struct workqueue_struct *ccw_device_work;
 struct workqueue_struct *ccw_device_notify_work;
-static wait_queue_head_t ccw_device_init_wq;
-static atomic_t ccw_device_init_count;
+wait_queue_head_t ccw_device_init_wq;
+atomic_t ccw_device_init_count;
 
 static int __init
 init_ccw_bus_type (void)