diff options
Diffstat (limited to 'include/net/tcp.h')
| -rw-r--r-- | include/net/tcp.h | 16 |
1 files changed, 13 insertions, 3 deletions
diff --git a/include/net/tcp.h b/include/net/tcp.h index a385797f160a..a8af9ae00177 100644 --- a/include/net/tcp.h +++ b/include/net/tcp.h @@ -254,6 +254,12 @@ static inline int between(__u32 seq1, __u32 seq2, __u32 seq3) return seq3 - seq2 >= seq1 - seq2; } +static inline int tcp_too_many_orphans(struct sock *sk, int num) +{ + return (num > sysctl_tcp_max_orphans) || + (sk->sk_wmem_queued > SOCK_MIN_SNDBUF && + atomic_read(&tcp_memory_allocated) > sysctl_tcp_mem[2]); +} extern struct proto tcp_prot; @@ -736,9 +742,8 @@ static inline __u32 tcp_current_ssthresh(const struct sock *sk) static inline void tcp_sync_left_out(struct tcp_sock *tp) { - if (tp->rx_opt.sack_ok && - (tp->sacked_out >= tp->packets_out - tp->lost_out)) - tp->sacked_out = tp->packets_out - tp->lost_out; + BUG_ON(tp->rx_opt.sack_ok && + (tp->sacked_out + tp->lost_out > tp->packets_out)); tp->left_out = tp->sacked_out + tp->lost_out; } @@ -1201,9 +1206,14 @@ static inline struct sk_buff *tcp_send_head(struct sock *sk) static inline void tcp_advance_send_head(struct sock *sk, struct sk_buff *skb) { + struct tcp_sock *tp = tcp_sk(sk); + sk->sk_send_head = skb->next; if (sk->sk_send_head == (struct sk_buff *)&sk->sk_write_queue) sk->sk_send_head = NULL; + /* Don't override Nagle indefinately with F-RTO */ + if (tp->frto_counter == 2) + tp->frto_counter = 3; } static inline void tcp_check_send_head(struct sock *sk, struct sk_buff *skb_unlinked) |