net/ipv4/tcp_output.c

1815 	icsk->icsk_mtup.probe_size = 0;
2332 		icsk->icsk_mtup.probe_size = 0;
2362 			     int probe_size)
2368 	if (!sk_wmem_schedule(sk, to->truesize + probe_size))
2378 			if (len >= probe_size)
2381 				     probe_size - len);
2400 	WARN_ON_ONCE(len != probe_size);
2405 	to->truesize += probe_size;
2406 	to->len += probe_size;
2407 	to->data_len += probe_size;
2442 	int probe_size;
2454 		   icsk->icsk_mtup.probe_size ||
2460 	/* Use binary search for probe_size between tcp_mss_base,
2465 	probe_size = tcp_mtu_to_mss(sk, (icsk->icsk_mtup.search_high +
2467 	size_needed = probe_size + (tp->reordering + 1) * tp->mss_cache;
2473 	if (probe_size > tcp_mtu_to_mss(sk, icsk->icsk_mtup.search_high) ||
2499 	if (!tcp_can_coalesce_send_queue_head(sk, probe_size))
2508 	if (tcp_clone_payload(sk, nskb, probe_size)) {
2521 	TCP_SKB_CB(nskb)->end_seq = TCP_SKB_CB(skb)->seq + probe_size;
2529 		copy = min_t(int, skb->len, probe_size - len);
2543 		if (len >= probe_size)
2557 		icsk->icsk_mtup.probe_size = tcp_mss_to_mtu(sk, nskb->len);
3330 	if (icsk->icsk_mtup.probe_size)
3331 		icsk->icsk_mtup.probe_size = 0;