> > This patch attempts to fix a deadlock in ufs while sending SSU. > Recently, blk_queue_enter() added a check to not process requests if the > queue is suspended. That leads to a resume of the associated device which > is suspended. In ufs, that device is ufs device wlun and it's parent is > ufs_hba. This resume tries to resume ufs device wlun which in turn tries > to resume ufs_hba, which is already in the process of suspending, thus > causing a deadlock. > > This patch takes care of: > * Suspending the ufs device lun only after all other luns are suspended ufs device lun -> ufs device wlun
