980 				       const struct page_frag *pfrag,  in mptcp_frag_can_collapse_to()  argument
983 	return df && pfrag->page == df->page &&  in mptcp_frag_can_collapse_to()
984 		pfrag->size - pfrag->offset > 0 &&  in mptcp_frag_can_collapse_to()
985 		pfrag->offset == (df->offset + df->data_len) &&  in mptcp_frag_can_collapse_to()
1096 static bool mptcp_page_frag_refill(struct sock *sk, struct page_frag *pfrag)  in mptcp_page_frag_refill()  argument
1099 					pfrag, sk->sk_allocation)))  in mptcp_page_frag_refill()
1107 mptcp_carve_data_frag(const struct mptcp_sock *msk, struct page_frag *pfrag,  in mptcp_carve_data_frag()  argument
1113 	dfrag = (struct mptcp_data_frag *)(page_to_virt(pfrag->page) + offset);  in mptcp_carve_data_frag()
1119 	dfrag->page = pfrag->page;  in mptcp_carve_data_frag()
1767 	struct page_frag *pfrag;  in mptcp_sendmsg()  local
1801 	pfrag = sk_page_frag(sk);  in mptcp_sendmsg()
1813 		dfrag_collapsed = mptcp_frag_can_collapse_to(msk, pfrag, dfrag);  in mptcp_sendmsg()
1818 			if (!mptcp_page_frag_refill(sk, pfrag))  in mptcp_sendmsg()
1821 			dfrag = mptcp_carve_data_frag(msk, pfrag, pfrag->offset);  in mptcp_sendmsg()
1830 		psize = pfrag->size - offset;  in mptcp_sendmsg()
1848 		pfrag->offset += frag_truesize;  in mptcp_sendmsg()