class_dev_iter    602 block/genhd.c  	struct class_dev_iter iter;
class_dev_iter    654 block/genhd.c  	struct class_dev_iter *iter;
class_dev_iter    686 block/genhd.c  	struct class_dev_iter *iter = seqf->private;
class_dev_iter   1030 block/genhd.c  	struct class_dev_iter iter;