268 	struct hd_struct *part = dev_to_part(dev);  in part_uevent()  local
270 	add_uevent_var(env, "PARTN=%u", part->partno);  in part_uevent()
271 	if (part->info && part->info->volname[0])  in part_uevent()
272 		add_uevent_var(env, "PARTNAME=%s", part->info->volname);  in part_uevent()
285 	struct hd_struct *part =  in hd_struct_free_work()  local
287 	struct gendisk *disk = part_to_disk(part);  in hd_struct_free_work()
297 	part->start_sect = 0;  in hd_struct_free_work()
298 	part->nr_sects = 0;  in hd_struct_free_work()
299 	part_stat_set_all(part, 0);  in hd_struct_free_work()
300 	put_device(part_to_dev(part));  in hd_struct_free_work()
305 	struct hd_struct *part = container_of(ref, struct hd_struct, ref);  in hd_struct_free()  local
306 	struct gendisk *disk = part_to_disk(part);  in hd_struct_free()
312 	INIT_RCU_WORK(&part->rcu_work, hd_struct_free_work);  in hd_struct_free()
313 	queue_rcu_work(system_wq, &part->rcu_work);  in hd_struct_free()
316 int hd_ref_init(struct hd_struct *part)  in hd_ref_init()  argument
318 	if (percpu_ref_init(&part->ref, hd_struct_free, 0, GFP_KERNEL))  in hd_ref_init()
327 void delete_partition(struct hd_struct *part)  in delete_partition()  argument
329 	struct gendisk *disk = part_to_disk(part);  in delete_partition()
335 	 * ->part_tbl is referenced in this part's release handler, so  in delete_partition()
339 	rcu_assign_pointer(ptbl->part[part->partno], NULL);  in delete_partition()
340 	kobject_put(part->holder_dir);  in delete_partition()
341 	device_del(part_to_dev(part));  in delete_partition()
349 	blk_invalidate_devt(part_devt(part));  in delete_partition()
351 	bdev = bdget_part(part);  in delete_partition()
356 	percpu_ref_kill(&part->ref);  in delete_partition()
405 	if (ptbl->part[partno])  in add_partition()
480 	rcu_assign_pointer(ptbl->part[partno], p);  in add_partition()
508 	struct hd_struct *part;  in partition_overlaps()  local
512 	while ((part = disk_part_iter_next(&piter))) {  in partition_overlaps()
513 		if (part->partno == skip_partno ||  in partition_overlaps()
514 		    start >= part->start_sect + part->nr_sects ||  in partition_overlaps()
515 		    start + length <= part->start_sect)  in partition_overlaps()
528 	struct hd_struct *part;  in bdev_add_partition()  local
536 	part = add_partition(bdev->bd_disk, partno, start, length,  in bdev_add_partition()
539 	return PTR_ERR_OR_ZERO(part);  in bdev_add_partition()
545 	struct hd_struct *part = NULL;  in bdev_del_partition()  local
556 	part = disk_get_part(bdev->bd_disk, partno);  in bdev_del_partition()
557 	if (!part)  in bdev_del_partition()
567 	delete_partition(part);  in bdev_del_partition()
573 	if (part)  in bdev_del_partition()
574 		disk_put_part(part);  in bdev_del_partition()
582 	struct hd_struct *part;  in bdev_resize_partition()  local
585 	part = disk_get_part(bdev->bd_disk, partno);  in bdev_resize_partition()
586 	if (!part)  in bdev_resize_partition()
590 	bdevp = bdget_part(part);  in bdev_resize_partition()
598 	if (start != part->start_sect)  in bdev_resize_partition()
605 	part_nr_sects_write(part, length);  in bdev_resize_partition()
614 	disk_put_part(part);  in bdev_resize_partition()
637 	struct hd_struct *part;  in blk_drop_partitions()  local
646 	while ((part = disk_part_iter_next(&piter)))  in blk_drop_partitions()
647 		delete_partition(part);  in blk_drop_partitions()
662 	struct hd_struct *part;  in blk_add_partition()  local
692 	part = add_partition(disk, p, from, size, state->parts[p].flags,  in blk_add_partition()
694 	if (IS_ERR(part) && PTR_ERR(part) != -ENXIO) {  in blk_add_partition()
696 		       disk->disk_name, p, -PTR_ERR(part));  in blk_add_partition()
702 		md_autodetect_dev(part_to_dev(part)->devt);  in blk_add_partition()