build error introduced by commit 
b357f04a67c2aeee8
That function doesn't get extra args until a later patch.  Bother.
Reported-by: Fengguang Wu <wfg@linux.intel.com>
Reported-by: Simon Kirby <sim@hostway.ca>
Reported-by: Tobias Klausmann <tobias.johannes.klausmann@mni.thm.de>
Signed-off-by: NeilBrown <neilb@suse.de>
                bio_list_add(&conf->pending_bio_list, mbio);
                conf->pending_count++;
                spin_unlock_irqrestore(&conf->device_lock, flags);
-               if (!mddev_check_plugged(mddev, 0, 0))
+               if (!mddev_check_plugged(mddev))
                        md_wakeup_thread(mddev->thread);
 
                if (!r10_bio->devs[i].repl_bio)