1537 				       struct page_frag *alloc_frag, char *buf,  in __tun_build_skb()  argument
1552 	get_page(alloc_frag->page);  in __tun_build_skb()
1553 	alloc_frag->offset += buflen;  in __tun_build_skb()
1602 	struct page_frag *alloc_frag = &current->task_frag;  in tun_build_skb()  local
1619 	alloc_frag->offset = ALIGN((u64)alloc_frag->offset, SMP_CACHE_BYTES);  in tun_build_skb()
1620 	if (unlikely(!skb_page_frag_refill(buflen, alloc_frag, GFP_KERNEL)))  in tun_build_skb()
1623 	buf = (char *)page_address(alloc_frag->page) + alloc_frag->offset;  in tun_build_skb()
1624 	copied = copy_page_from_iter(alloc_frag->page,  in tun_build_skb()
1625 				     alloc_frag->offset + pad,  in tun_build_skb()
1636 		return __tun_build_skb(tfile, alloc_frag, buf, buflen, len,  in tun_build_skb()
1655 			get_page(alloc_frag->page);  in tun_build_skb()
1656 			alloc_frag->offset += buflen;  in tun_build_skb()
1661 				put_page(alloc_frag->page);  in tun_build_skb()
1682 	return __tun_build_skb(tfile, alloc_frag, buf, buflen, len, pad,  in tun_build_skb()