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Commit 92df7b51 authored by David S. Miller's avatar David S. Miller
Browse files

[TCP]: tcp_write_xmit() tabbing cleanup 



Put the main basic block of work at the top-level of
tabbing, and mark the TCP_CLOSE test with unlikely().

Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent a762a980

net/ipv4/tcp_output.c

+34 −34
Original line number Diff line number Diff line
@@ -842,15 +842,17 @@ static inline void tcp_cwnd_validate(struct sock *sk, struct tcp_sock *tp) 
static int tcp_write_xmit(struct sock *sk, int nonagle)

{

	struct tcp_sock *tp = tcp_sk(sk);

	struct sk_buff *skb;

	unsigned int mss_now;

	int sent_pkts;



	/* If we are closed, the bytes will have to remain here.

	 * In time closedown will finish, we empty the write queue and all

	 * will be happy.

	 */

	if (sk->sk_state != TCP_CLOSE) {

		struct sk_buff *skb;

		int sent_pkts = 0;

	if (unlikely(sk->sk_state == TCP_CLOSE))

		return 0;





	/* Account for SACKS, we may need to fragment due to this.

	 * It is just like the real MSS changing on us midstream.
@@ -858,7 +860,7 @@ static int tcp_write_xmit(struct sock *sk, int nonagle) 
	 * IP options mid-stream.  Silly to do, but cover it.

	 */

	mss_now = tcp_current_mss(sk, 1);



	sent_pkts = 0;

	while ((skb = sk->sk_send_head) &&

	       tcp_snd_test(sk, skb, mss_now,

			    tcp_skb_is_last(sk, skb) ? nonagle :
@@ -889,8 +891,6 @@ static int tcp_write_xmit(struct sock *sk, int nonagle) 


	return !tp->packets_out && sk->sk_send_head;

}

	return 0;

}



/* Push out any pending frames which were held back due to

 * TCP_CORK or attempt at coalescing tiny packets.