270 void delete_partition(struct gendisk *disk, int partno)  in delete_partition()  argument
273 		rcu_dereference_protected(disk->part_tbl, 1);  in delete_partition()
309 struct hd_struct *add_partition(struct gendisk *disk, int partno,  in add_partition()  argument
315 	struct device *ddev = disk_to_dev(disk);  in add_partition()
321 	err = disk_expand_part_tbl(disk, partno);  in add_partition()
324 	ptbl = rcu_dereference_protected(disk->part_tbl, 1);  in add_partition()
343 		queue_limit_alignment_offset(&disk->queue->limits, start);  in add_partition()
345 		queue_limit_discard_alignment(&disk->queue->limits, start);  in add_partition()
348 	p->policy = get_disk_ro(disk);  in add_partition()
351 		struct partition_meta_info *pinfo = alloc_part_info(disk);  in add_partition()
426 static bool disk_unlock_native_capacity(struct gendisk *disk)  in disk_unlock_native_capacity()  argument
428 	const struct block_device_operations *bdops = disk->fops;  in disk_unlock_native_capacity()
431 	    !(disk->flags & GENHD_FL_NATIVE_CAPACITY)) {  in disk_unlock_native_capacity()
433 		bdops->unlock_native_capacity(disk);  in disk_unlock_native_capacity()
434 		disk->flags |= GENHD_FL_NATIVE_CAPACITY;  in disk_unlock_native_capacity()
442 static int drop_partitions(struct gendisk *disk, struct block_device *bdev)  in drop_partitions()  argument
450 	res = invalidate_partition(disk, 0);  in drop_partitions()
454 	disk_part_iter_init(&piter, disk, DISK_PITER_INCL_EMPTY);  in drop_partitions()
456 		delete_partition(disk, part->partno);  in drop_partitions()
462 static bool part_zone_aligned(struct gendisk *disk,  in part_zone_aligned()  argument
493 		if ((from + size) < get_capacity(disk)) {  in part_zone_aligned()
503 		if ((from + size) < get_capacity(disk) &&  in part_zone_aligned()
512 int rescan_partitions(struct gendisk *disk, struct block_device *bdev)  in rescan_partitions()  argument
523 	res = drop_partitions(disk, bdev);  in rescan_partitions()
527 	if (disk->fops->revalidate_disk)  in rescan_partitions()
528 		disk->fops->revalidate_disk(disk);  in rescan_partitions()
529 	check_disk_size_change(disk, bdev, true);  in rescan_partitions()
531 	if (!get_capacity(disk) || !(state = check_partition(disk, bdev)))  in rescan_partitions()
541 			       disk->disk_name);  in rescan_partitions()
542 			if (disk_unlock_native_capacity(disk))  in rescan_partitions()
555 		       disk->disk_name);  in rescan_partitions()
556 		if (disk_unlock_native_capacity(disk))  in rescan_partitions()
561 	kobject_uevent(&disk_to_dev(disk)->kobj, KOBJ_CHANGE);  in rescan_partitions()
571 	disk_expand_part_tbl(disk, highest);  in rescan_partitions()
582 		if (from >= get_capacity(disk)) {  in rescan_partitions()
585 			       disk->disk_name, p, (unsigned long long) from);  in rescan_partitions()
586 			if (disk_unlock_native_capacity(disk))  in rescan_partitions()
591 		if (from + size > get_capacity(disk)) {  in rescan_partitions()
594 			       disk->disk_name, p, (unsigned long long) size);  in rescan_partitions()
596 			if (disk_unlock_native_capacity(disk)) {  in rescan_partitions()
606 				size = get_capacity(disk) - from;  in rescan_partitions()
617 		    !part_zone_aligned(disk, bdev, from, size)) {  in rescan_partitions()
620 			       disk->disk_name, p, (unsigned long long) from,  in rescan_partitions()
625 		part = add_partition(disk, p, from, size,  in rescan_partitions()
630 			       disk->disk_name, p, -PTR_ERR(part));  in rescan_partitions()
642 int invalidate_partitions(struct gendisk *disk, struct block_device *bdev)  in invalidate_partitions()  argument
649 	res = drop_partitions(disk, bdev);  in invalidate_partitions()
653 	set_capacity(disk, 0);  in invalidate_partitions()
654 	check_disk_size_change(disk, bdev, false);  in invalidate_partitions()
657 	kobject_uevent(&disk_to_dev(disk)->kobj, KOBJ_CHANGE);  in invalidate_partitions()