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Commit ebc45999 authored by Horst Hummel's avatar Horst Hummel Committed by Martin Schwidefsky
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[S390] dasd set offline kernel bug. 



The request queue flush function of the dasd driver has to dequeue
the requests first and then call the end request function. Otherwise
a kernel bug in ll_rw_block.c might get triggered.

Signed-off-by: default avatarHorst Hummel <horst.hummel@de.ibm.com>
Signed-off-by: default avatarMartin Schwidefsky <schwidefsky@de.ibm.com>
parent 5cb900a3

drivers/s390/block/dasd.c

+1 −1
Original line number Diff line number Diff line
@@ -1730,8 +1730,8 @@ dasd_flush_request_queue(struct dasd_device * device) 
		req = elv_next_request(device->request_queue);

		if (req == NULL)

			break;

		dasd_end_request(req, 0);

		blkdev_dequeue_request(req);

		dasd_end_request(req, 0);

	}

	spin_unlock_irq(&device->request_queue_lock);

}