int tcp_v4_early_demux(struct sk_buff *skb);
int tcp_v4_rcv(struct sk_buff *skb);
+void tcp_remove_empty_skb(struct sock *sk, struct sk_buff *skb);
int tcp_v4_tw_remember_stamp(struct inet_timewait_sock *tw);
int tcp_sendmsg(struct sock *sk, struct msghdr *msg, size_t size);
int tcp_sendmsg_locked(struct sock *sk, struct msghdr *msg, size_t size);
int flags);
int tcp_sendpage_locked(struct sock *sk, struct page *page, int offset,
size_t size, int flags);
+struct sk_buff *tcp_build_frag(struct sock *sk, int size_goal, int flags,
+ struct page *page, int offset, size_t *size);
ssize_t do_tcp_sendpages(struct sock *sk, struct page *page, int offset,
size_t size, int flags);
int tcp_send_mss(struct sock *sk, int *size_goal, int flags);
int tcp_child_process(struct sock *parent, struct sock *child,
struct sk_buff *skb);
void tcp_enter_loss(struct sock *sk);
-void tcp_cwnd_reduction(struct sock *sk, int newly_acked_sacked, int flag);
+void tcp_cwnd_reduction(struct sock *sk, int newly_acked_sacked, int newly_lost, int flag);
void tcp_clear_retrans(struct tcp_sock *tp);
void tcp_update_metrics(struct sock *sk);
void tcp_init_metrics(struct sock *sk);
void tcp_metrics_init(void);
bool tcp_peer_is_proven(struct request_sock *req, struct dst_entry *dst);
+void __tcp_close(struct sock *sk, long timeout);
void tcp_close(struct sock *sk, long timeout);
void tcp_init_sock(struct sock *sk);
void tcp_init_transfer(struct sock *sk, int bpf_op, struct sk_buff *skb);
return tp->notsent_lowat ?: net->ipv4.sysctl_tcp_notsent_lowat;
}
-/* @wake is one when sk_stream_write_space() calls us.
- * This sends EPOLLOUT only if notsent_bytes is half the limit.
- * This mimics the strategy used in sock_def_write_space().
- */
-static inline bool tcp_stream_memory_free(const struct sock *sk, int wake)
-{
- const struct tcp_sock *tp = tcp_sk(sk);
- u32 notsent_bytes = READ_ONCE(tp->write_seq) -
- READ_ONCE(tp->snd_nxt);
-
- return (notsent_bytes << wake) < tcp_notsent_lowat(tp);
-}
+bool tcp_stream_memory_free(const struct sock *sk, int wake);
#ifdef CONFIG_PROC_FS
int tcp4_proc_init(void);