ntfs_attr_set_initialized_size
int ntfs_attr_set_initialized_size(struct ntfs_inode *ni, loff_t new_size);
ntfs_attr_set_initialized_size(ni, old_init_size);
err = ntfs_attr_set_initialized_size(ni, new_size);
err = ntfs_attr_set_initialized_size(ni, iomap->offset +