473 struct block_device *bdev_alloc(struct gendisk *disk, u8 partno)  in bdev_alloc()  argument
492 	bdev->bd_queue = disk->queue;  in bdev_alloc()
493 	if (partno && bdev_test_flag(disk->part0, BD_HAS_SUBMIT_BIO))  in bdev_alloc()
500 	bdev->bd_disk = disk;  in bdev_alloc()
743 	struct gendisk *disk = bdev->bd_disk;  in blkdev_get_whole()  local
746 	if (disk->fops->open) {  in blkdev_get_whole()
747 		ret = disk->fops->open(disk, mode);  in blkdev_get_whole()
751 			     test_bit(GD_NEED_PART_SCAN, &disk->state))  in blkdev_get_whole()
752 				bdev_disk_changed(disk, true);  in blkdev_get_whole()
760 	if (test_bit(GD_NEED_PART_SCAN, &disk->state)) {  in blkdev_get_whole()
765 		ret = bdev_disk_changed(disk, false);  in blkdev_get_whole()
776 	struct gendisk *disk = part->bd_disk;  in blkdev_get_part()  local
788 		disk->open_partitions++;  in blkdev_get_part()
947 	struct gendisk *disk = bdev->bd_disk;  in bdev_open()  local
960 	disk_block_events(disk);  in bdev_open()
962 	mutex_lock(&disk->open_mutex);  in bdev_open()
964 	if (!disk_live(disk))  in bdev_open()
966 	if (!try_module_get(disk->fops->owner))  in bdev_open()
990 		    (disk->event_flags & DISK_EVENT_FLAG_BLOCK_ON_EXCL_WRITE)) {  in bdev_open()
995 	mutex_unlock(&disk->open_mutex);  in bdev_open()
998 		disk_unblock_events(disk);  in bdev_open()
1012 	module_put(disk->fops->owner);  in bdev_open()
1016 	mutex_unlock(&disk->open_mutex);  in bdev_open()
1017 	disk_unblock_events(disk);  in bdev_open()
1129 	struct gendisk *disk = bdev->bd_disk;  in bdev_release()  local
1145 	mutex_lock(&disk->open_mutex);  in bdev_release()
1156 	disk_flush_events(disk, DISK_EVENT_MEDIA_CHANGE);  in bdev_release()
1162 	mutex_unlock(&disk->open_mutex);  in bdev_release()
1164 	module_put(disk->fops->owner);  in bdev_release()
1184 		struct gendisk *disk = bdev->bd_disk;  in bdev_fput()  local
1186 		mutex_lock(&disk->open_mutex);  in bdev_fput()
1195 		mutex_unlock(&disk->open_mutex);  in bdev_fput()
1364 bool disk_live(struct gendisk *disk)  in disk_live()  argument
1366 	return !inode_unhashed(BD_INODE(disk->part0));  in disk_live()