251 	const struct block_device *part = dev_to_bdev(dev);  in part_uevent()  local
253 	add_uevent_var(env, "PARTN=%u", part->bd_partno);  in part_uevent()
254 	if (part->bd_meta_info && part->bd_meta_info->volname[0])  in part_uevent()
255 		add_uevent_var(env, "PARTNAME=%s", part->bd_meta_info->volname);  in part_uevent()
266 void drop_partition(struct block_device *part)  in drop_partition()  argument
268 	lockdep_assert_held(&part->bd_disk->open_mutex);  in drop_partition()
270 	xa_erase(&part->bd_disk->part_tbl, part->bd_partno);  in drop_partition()
271 	kobject_put(part->bd_holder_dir);  in drop_partition()
273 	device_del(&part->bd_device);  in drop_partition()
274 	put_device(&part->bd_device);  in drop_partition()
277 static void delete_partition(struct block_device *part)  in delete_partition()  argument
283 	remove_inode_hash(part->bd_inode);  in delete_partition()
284 	bdev_mark_dead(part, false);  in delete_partition()
285 	drop_partition(part);  in delete_partition()
420 	struct block_device *part;  in partition_overlaps()  local
425 	xa_for_each_start(&disk->part_tbl, idx, part, 1) {  in partition_overlaps()
426 		if (part->bd_partno != skip_partno &&  in partition_overlaps()
427 		    start < part->bd_start_sect + bdev_nr_sectors(part) &&  in partition_overlaps()
428 		    start + length > part->bd_start_sect) {  in partition_overlaps()
442 	struct block_device *part;  in bdev_add_partition()  local
466 	part = add_partition(disk, partno, start, length,  in bdev_add_partition()
468 	ret = PTR_ERR_OR_ZERO(part);  in bdev_add_partition()
476 	struct block_device *part = NULL;  in bdev_del_partition()  local
480 	part = xa_load(&disk->part_tbl, partno);  in bdev_del_partition()
481 	if (!part)  in bdev_del_partition()
485 	if (atomic_read(&part->bd_openers))  in bdev_del_partition()
488 	delete_partition(part);  in bdev_del_partition()
498 	struct block_device *part = NULL;  in bdev_resize_partition()  local
502 	part = xa_load(&disk->part_tbl, partno);  in bdev_resize_partition()
503 	if (!part)  in bdev_resize_partition()
507 	if (start != part->bd_start_sect)  in bdev_resize_partition()
514 	bdev_set_nr_sectors(part, length);  in bdev_resize_partition()
540 	struct block_device *part;  in blk_add_partition()  local
570 	part = add_partition(disk, p, from, size, state->parts[p].flags,  in blk_add_partition()
572 	if (IS_ERR(part) && PTR_ERR(part) != -ENXIO) {  in blk_add_partition()
574 		       disk->disk_name, p, -PTR_ERR(part));  in blk_add_partition()
580 		md_autodetect_dev(part->bd_dev);  in blk_add_partition()
651 	struct block_device *part;  in bdev_disk_changed()  local
666 	xa_for_each_start(&disk->part_tbl, idx, part, 1)  in bdev_disk_changed()
667 		delete_partition(part);  in bdev_disk_changed()