X-Git-Url: https://git.openpandora.org/cgi-bin/gitweb.cgi?p=pandora-kernel.git;a=blobdiff_plain;f=include%2Fnet%2Ftcp.h;h=0ede804b16d4f4559cec5cebd6c254023b28ec33;hp=92049e681258a4d43c1e3bd7ccee8ac8af8dab2d;hb=a47e5a988a57;hpb=547307420931344a868275bd7ea7a30f117a15a9

diff --git a/include/net/tcp.h b/include/net/tcp.h
index 92049e681258..0ede804b16d4 100644
--- a/include/net/tcp.h
+++ b/include/net/tcp.h
@@ -309,6 +309,9 @@ extern int			tcp_twsk_unique(struct sock *sk,
 
 extern void			tcp_twsk_destructor(struct sock *sk);
 
+extern ssize_t			tcp_splice_read(struct socket *sk, loff_t *ppos,
+					        struct pipe_inode_info *pipe, size_t len, unsigned int flags);
+
 static inline void tcp_dec_quickack_mode(struct sock *sk,
 					 const unsigned int pkts)
 {
@@ -803,7 +806,7 @@ static inline int tcp_is_cwnd_limited(const struct sock *sk, u32 in_flight)
 		return left <= tcp_max_burst(tp);
 }
 
-static inline void tcp_minshall_update(struct tcp_sock *tp, int mss,
+static inline void tcp_minshall_update(struct tcp_sock *tp, unsigned int mss,
 				       const struct sk_buff *skb)
 {
 	if (skb->len < mss)
@@ -1288,6 +1291,9 @@ static inline void tcp_insert_write_queue_before(struct sk_buff *new,
 						  struct sock *sk)
 {
 	__skb_insert(new, skb->prev, skb, &sk->sk_write_queue);
+
+	if (sk->sk_send_head == skb)
+		sk->sk_send_head = new;
 }
 
 static inline void tcp_unlink_write_queue(struct sk_buff *skb, struct sock *sk)
@@ -1306,6 +1312,16 @@ static inline int tcp_write_queue_empty(struct sock *sk)
 	return skb_queue_empty(&sk->sk_write_queue);
 }
 
+/* Start sequence of the highest skb with SACKed bit, valid only if
+ * sacked > 0 or when the caller has ensured validity by itself.
+ */
+static inline u32 tcp_highest_sack_seq(struct tcp_sock *tp)
+{
+	if (!tp->sacked_out)
+		return tp->snd_una;
+	return TCP_SKB_CB(tp->highest_sack)->seq;
+}
+
 /* /proc */
 enum tcp_seq_states {
 	TCP_SEQ_STATE_LISTENING,