1584 	struct page_frag *alloc_frag = &current->task_frag;  in tun_build_skb()  local
1600 	alloc_frag->offset = ALIGN((u64)alloc_frag->offset, SMP_CACHE_BYTES);  in tun_build_skb()
1601 	if (unlikely(!skb_page_frag_refill(buflen, alloc_frag, GFP_KERNEL)))  in tun_build_skb()
1604 	buf = (char *)page_address(alloc_frag->page) + alloc_frag->offset;  in tun_build_skb()
1605 	copied = copy_page_from_iter(alloc_frag->page,  in tun_build_skb()
1606 				     alloc_frag->offset + pad,  in tun_build_skb()
1638 			get_page(alloc_frag->page);  in tun_build_skb()
1639 			alloc_frag->offset += buflen;  in tun_build_skb()
1648 			get_page(alloc_frag->page);  in tun_build_skb()
1649 			alloc_frag->offset += buflen;  in tun_build_skb()
1679 	get_page(alloc_frag->page);  in tun_build_skb()
1680 	alloc_frag->offset += buflen;  in tun_build_skb()
1688 	put_page(alloc_frag->page);  in tun_build_skb()