clearing_ptr       43 block/genhd.c  			      unsigned int *clearing_ptr);
clearing_ptr     1845 block/genhd.c  			      unsigned int *clearing_ptr)
clearing_ptr     1849 block/genhd.c  	unsigned int clearing = *clearing_ptr;
clearing_ptr     1862 block/genhd.c  	*clearing_ptr &= ~clearing;