1872 	struct sk_buff *skb, *nskb, *next;  in tcp_mtu_probe()  local
1932 	nskb = sk_stream_alloc_skb(sk, probe_size, GFP_ATOMIC, false);  in tcp_mtu_probe()
1933 	if (!nskb)  in tcp_mtu_probe()
1935 	sk->sk_wmem_queued += nskb->truesize;  in tcp_mtu_probe()
1936 	sk_mem_charge(sk, nskb->truesize);  in tcp_mtu_probe()
1940 	TCP_SKB_CB(nskb)->seq = TCP_SKB_CB(skb)->seq;  in tcp_mtu_probe()
1941 	TCP_SKB_CB(nskb)->end_seq = TCP_SKB_CB(skb)->seq + probe_size;  in tcp_mtu_probe()
1942 	TCP_SKB_CB(nskb)->tcp_flags = TCPHDR_ACK;  in tcp_mtu_probe()
1943 	TCP_SKB_CB(nskb)->sacked = 0;  in tcp_mtu_probe()
1944 	nskb->csum = 0;  in tcp_mtu_probe()
1945 	nskb->ip_summed = skb->ip_summed;  in tcp_mtu_probe()
1947 	tcp_insert_write_queue_before(nskb, skb, sk);  in tcp_mtu_probe()
1952 		if (nskb->ip_summed)  in tcp_mtu_probe()
1953 			skb_copy_bits(skb, 0, skb_put(nskb, copy), copy);  in tcp_mtu_probe()
1955 			nskb->csum = skb_copy_and_csum_bits(skb, 0,  in tcp_mtu_probe()
1956 							    skb_put(nskb, copy),  in tcp_mtu_probe()
1957 							    copy, nskb->csum);  in tcp_mtu_probe()
1962 			TCP_SKB_CB(nskb)->tcp_flags |= TCP_SKB_CB(skb)->tcp_flags;  in tcp_mtu_probe()
1966 			TCP_SKB_CB(nskb)->tcp_flags |= TCP_SKB_CB(skb)->tcp_flags &  in tcp_mtu_probe()
1985 	tcp_init_tso_segs(nskb, nskb->len);  in tcp_mtu_probe()
1990 	if (!tcp_transmit_skb(sk, nskb, 1, GFP_ATOMIC)) {  in tcp_mtu_probe()
1994 		tcp_event_new_data_sent(sk, nskb);  in tcp_mtu_probe()
1996 		icsk->icsk_mtup.probe_size = tcp_mss_to_mtu(sk, nskb->len);  in tcp_mtu_probe()
1997 		tp->mtu_probe.probe_seq_start = TCP_SKB_CB(nskb)->seq;  in tcp_mtu_probe()
1998 		tp->mtu_probe.probe_seq_end = TCP_SKB_CB(nskb)->end_seq;  in tcp_mtu_probe()
2628 		struct sk_buff *nskb;  in __tcp_retransmit_skb()  local
2631 		nskb = __pskb_copy(skb, MAX_TCP_HEADER, GFP_ATOMIC);  in __tcp_retransmit_skb()
2632 		err = nskb ? tcp_transmit_skb(sk, nskb, 0, GFP_ATOMIC) :  in __tcp_retransmit_skb()
2917 			struct sk_buff *nskb = skb_copy(skb, GFP_ATOMIC);  in tcp_send_synack()  local
2918 			if (!nskb)  in tcp_send_synack()
2921 			__skb_header_release(nskb);  in tcp_send_synack()
2922 			__tcp_add_write_queue_head(sk, nskb);  in tcp_send_synack()
2924 			sk->sk_wmem_queued += nskb->truesize;  in tcp_send_synack()
2925 			sk_mem_charge(sk, nskb->truesize);  in tcp_send_synack()
2926 			skb = nskb;  in tcp_send_synack()