2197 bool skb_page_frag_refill(unsigned int sz, struct page_frag *pfrag, gfp_t gfp)  in skb_page_frag_refill()  argument
2199 	if (pfrag->page) {  in skb_page_frag_refill()
2200 		if (page_ref_count(pfrag->page) == 1) {  in skb_page_frag_refill()
2201 			pfrag->offset = 0;  in skb_page_frag_refill()
2204 		if (pfrag->offset + sz <= pfrag->size)  in skb_page_frag_refill()
2206 		put_page(pfrag->page);  in skb_page_frag_refill()
2209 	pfrag->offset = 0;  in skb_page_frag_refill()
2212 		pfrag->page = alloc_pages((gfp & ~__GFP_DIRECT_RECLAIM) |  in skb_page_frag_refill()
2216 		if (likely(pfrag->page)) {  in skb_page_frag_refill()
2217 			pfrag->size = PAGE_SIZE << SKB_FRAG_PAGE_ORDER;  in skb_page_frag_refill()
2221 	pfrag->page = alloc_page(gfp);  in skb_page_frag_refill()
2222 	if (likely(pfrag->page)) {  in skb_page_frag_refill()
2223 		pfrag->size = PAGE_SIZE;  in skb_page_frag_refill()
2230 bool sk_page_frag_refill(struct sock *sk, struct page_frag *pfrag)  in sk_page_frag_refill()  argument
2232 	if (likely(skb_page_frag_refill(32U, pfrag, sk->sk_allocation)))  in sk_page_frag_refill()
2247 	struct page_frag *pfrag;  in sk_alloc_sg()  local
2251 	pfrag = sk_page_frag(sk);  in sk_alloc_sg()
2256 		if (!sk_page_frag_refill(sk, pfrag)) {  in sk_alloc_sg()
2261 		use = min_t(int, len, pfrag->size - pfrag->offset);  in sk_alloc_sg()
2270 		orig_offset = pfrag->offset;  in sk_alloc_sg()
2271 		pfrag->offset += use;  in sk_alloc_sg()
2274 		if (sg_curr > first_coalesce && sg_page(sge) == pfrag->page &&  in sk_alloc_sg()
2280 			sg_set_page(sge, pfrag->page, use, orig_offset);  in sk_alloc_sg()
2281 			get_page(pfrag->page);  in sk_alloc_sg()