1115 	struct gendisk *disk = get_gendisk(bdev->bd_dev, partno);  in bdev_get_gendisk()  local
1117 	if (!disk)  in bdev_get_gendisk()
1128 		put_disk_and_module(disk);  in bdev_get_gendisk()
1131 	return disk;  in bdev_get_gendisk()
1191 	struct gendisk		*disk;  member
1196 						  struct gendisk *disk)  in bd_find_holder_disk()  argument
1201 		if (holder->disk == disk)  in bd_find_holder_disk()
1244 int bd_link_disk_holder(struct block_device *bdev, struct gendisk *disk)  in bd_link_disk_holder()  argument
1254 	if (WARN_ON(!disk->slave_dir || !bdev->bd_part->holder_dir))  in bd_link_disk_holder()
1257 	holder = bd_find_holder_disk(bdev, disk);  in bd_link_disk_holder()
1270 	holder->disk = disk;  in bd_link_disk_holder()
1273 	ret = add_symlink(disk->slave_dir, &part_to_dev(bdev->bd_part)->kobj);  in bd_link_disk_holder()
1277 	ret = add_symlink(bdev->bd_part->holder_dir, &disk_to_dev(disk)->kobj);  in bd_link_disk_holder()
1290 	del_symlink(disk->slave_dir, &part_to_dev(bdev->bd_part)->kobj);  in bd_link_disk_holder()
1309 void bd_unlink_disk_holder(struct block_device *bdev, struct gendisk *disk)  in bd_unlink_disk_holder()  argument
1315 	holder = bd_find_holder_disk(bdev, disk);  in bd_unlink_disk_holder()
1318 		del_symlink(disk->slave_dir, &part_to_dev(bdev->bd_part)->kobj);  in bd_unlink_disk_holder()
1320 			    &disk_to_dev(disk)->kobj);  in bd_unlink_disk_holder()
1341 static void check_disk_size_change(struct gendisk *disk,  in check_disk_size_change()  argument
1347 	disk_size = (loff_t)get_capacity(disk) << 9;  in check_disk_size_change()
1353 			       disk->disk_name, bdev_size, disk_size);  in check_disk_size_change()
1362 				disk->disk_name);  in check_disk_size_change()
1375 void revalidate_disk_size(struct gendisk *disk, bool verbose)  in revalidate_disk_size()  argument
1383 	if (disk->flags & GENHD_FL_HIDDEN)  in revalidate_disk_size()
1386 	bdev = bdget_disk(disk, 0);  in revalidate_disk_size()
1388 		check_disk_size_change(disk, bdev, verbose);  in revalidate_disk_size()
1406 	struct gendisk *disk = bdev->bd_disk;  in bdev_disk_changed()  local
1411 	if (!(disk->flags & GENHD_FL_UP))  in bdev_disk_changed()
1419 	clear_bit(GD_NEED_PART_SCAN, &disk->state);  in bdev_disk_changed()
1430 		if (disk_part_scan_enabled(disk) ||  in bdev_disk_changed()
1431 		    !(disk->flags & GENHD_FL_REMOVABLE))  in bdev_disk_changed()
1432 			set_capacity(disk, 0);  in bdev_disk_changed()
1434 		if (disk->fops->revalidate_disk)  in bdev_disk_changed()
1435 			disk->fops->revalidate_disk(disk);  in bdev_disk_changed()
1438 	check_disk_size_change(disk, bdev, !invalidate);  in bdev_disk_changed()
1440 	if (get_capacity(disk)) {  in bdev_disk_changed()
1441 		ret = blk_add_partitions(disk, bdev);  in bdev_disk_changed()
1449 		kobject_uevent(&disk_to_dev(disk)->kobj, KOBJ_CHANGE);  in bdev_disk_changed()
1471 	struct gendisk *disk;  in __blkdev_get()  local
1479 	disk = bdev_get_gendisk(bdev, &partno);  in __blkdev_get()
1480 	if (!disk)  in __blkdev_get()
1484 		whole = bdget_disk(disk, 0);  in __blkdev_get()
1502 	disk_block_events(disk);  in __blkdev_get()
1506 		bdev->bd_disk = disk;  in __blkdev_get()
1512 			bdev->bd_part = disk_get_part(disk, partno);  in __blkdev_get()
1517 			if (disk->fops->open) {  in __blkdev_get()
1518 				ret = disk->fops->open(bdev, mode);  in __blkdev_get()
1528 				bd_set_nr_sectors(bdev, get_capacity(disk));  in __blkdev_get()
1538 			if (test_bit(GD_NEED_PART_SCAN, &disk->state) &&  in __blkdev_get()
1550 			bdev->bd_part = disk_get_part(disk, partno);  in __blkdev_get()
1551 			if (!(disk->flags & GENHD_FL_UP) ||  in __blkdev_get()
1561 			bdev->bd_bdi = bdi_get(disk->queue->backing_dev_info);  in __blkdev_get()
1568 			if (test_bit(GD_NEED_PART_SCAN, &disk->state) &&  in __blkdev_get()
1588 	    (disk->flags & GENHD_FL_BLOCK_EVENTS_ON_EXCL_WRITE)) {  in __blkdev_get()
1595 		disk_unblock_events(disk);  in __blkdev_get()
1599 		put_disk_and_module(disk);  in __blkdev_get()
1615 	disk_unblock_events(disk);  in __blkdev_get()
1620 	put_disk_and_module(disk);  in __blkdev_get()
1780 	struct gendisk *disk = bdev->bd_disk;  in __blkdev_put()  local
1805 		if (disk->fops->release)  in __blkdev_put()
1806 			disk->fops->release(disk, mode);  in __blkdev_put()
1816 		put_disk_and_module(disk);  in __blkdev_put()