1512 				       struct page_frag *alloc_frag, char *buf,  in __tun_build_skb()  argument
1524 	get_page(alloc_frag->page);  in __tun_build_skb()
1525 	alloc_frag->offset += buflen;  in __tun_build_skb()
1568 	struct page_frag *alloc_frag = &current->task_frag;  in tun_build_skb()  local
1583 	alloc_frag->offset = ALIGN((u64)alloc_frag->offset, SMP_CACHE_BYTES);  in tun_build_skb()
1584 	if (unlikely(!skb_page_frag_refill(buflen, alloc_frag, GFP_KERNEL)))  in tun_build_skb()
1587 	buf = (char *)page_address(alloc_frag->page) + alloc_frag->offset;  in tun_build_skb()
1588 	copied = copy_page_from_iter(alloc_frag->page,  in tun_build_skb()
1589 				     alloc_frag->offset + pad,  in tun_build_skb()
1600 		return __tun_build_skb(tfile, alloc_frag, buf, buflen, len,  in tun_build_skb()
1618 			get_page(alloc_frag->page);  in tun_build_skb()
1619 			alloc_frag->offset += buflen;  in tun_build_skb()
1624 				put_page(alloc_frag->page);  in tun_build_skb()
1639 	return __tun_build_skb(tfile, alloc_frag, buf, buflen, len, pad);  in tun_build_skb()