[S390] dasd: fail requests when device state is less then ready

A DASD device that is not ready or online has no defined disk layout,
so all requests that arrive in such a state need to be returned as
failed.

Signed-off-by: Stefan Weinhuber <wein@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>

diff --git a/drivers/s390/block/dasd.c b/drivers/s390/block/dasd.c
index 3f62dd5..f8445b8 100644 (file)
--- a/drivers/s390/block/dasd.c
+++ b/drivers/s390/block/dasd.c
@@ -1699,8 +1699,11 @@ static void __dasd_process_request_queue(struct dasd_block *block)
         * for that. State DASD_STATE_ONLINE is normal block device
         * operation.
         */
-       if (basedev->state < DASD_STATE_READY)
+       if (basedev->state < DASD_STATE_READY) {
+               while ((req = blk_fetch_request(block->request_queue)))
+                       __blk_end_request_all(req, -EIO);
                return;
+       }
        /* Now we try to fetch requests from the request queue */
        while (!blk_queue_plugged(queue) && (req = blk_peek_request(queue))) {
                if (basedev->features & DASD_FEATURE_READONLY &&