diff options
| -rw-r--r-- | include/net/dst.h | 12 | ||||
| -rw-r--r-- | net/core/sock.c | 6 | ||||
| -rw-r--r-- | net/dccp/timer.c | 4 | ||||
| -rw-r--r-- | net/decnet/af_decnet.c | 2 | ||||
| -rw-r--r-- | net/ipv4/tcp_timer.c | 4 |
5 files changed, 21 insertions, 7 deletions
diff --git a/include/net/dst.h b/include/net/dst.h index 5a900ddcf10d..720d90653a8e 100644 --- a/include/net/dst.h +++ b/include/net/dst.h @@ -222,11 +222,19 @@ static inline void dst_confirm(struct dst_entry *dst) neigh_confirm(dst->neighbour); } -static inline void dst_negative_advice(struct dst_entry **dst_p) +static inline void dst_negative_advice(struct dst_entry **dst_p, + struct sock *sk) { struct dst_entry * dst = *dst_p; - if (dst && dst->ops->negative_advice) + if (dst && dst->ops->negative_advice) { *dst_p = dst->ops->negative_advice(dst); + + if (dst != *dst_p) { + extern void sk_reset_txq(struct sock *sk); + + sk_reset_txq(sk); + } + } } static inline void dst_link_failure(struct sk_buff *skb) diff --git a/net/core/sock.c b/net/core/sock.c index 934d9673f084..5a51512f638a 100644 --- a/net/core/sock.c +++ b/net/core/sock.c @@ -352,6 +352,12 @@ discard_and_relse: } EXPORT_SYMBOL(sk_receive_skb); +void sk_reset_txq(struct sock *sk) +{ + sk_tx_queue_clear(sk); +} +EXPORT_SYMBOL(sk_reset_txq); + struct dst_entry *__sk_dst_check(struct sock *sk, u32 cookie) { struct dst_entry *dst = sk->sk_dst_cache; diff --git a/net/dccp/timer.c b/net/dccp/timer.c index 162d1e683c39..bbfeb5eae46a 100644 --- a/net/dccp/timer.c +++ b/net/dccp/timer.c @@ -38,7 +38,7 @@ static int dccp_write_timeout(struct sock *sk) if (sk->sk_state == DCCP_REQUESTING || sk->sk_state == DCCP_PARTOPEN) { if (icsk->icsk_retransmits != 0) - dst_negative_advice(&sk->sk_dst_cache); + dst_negative_advice(&sk->sk_dst_cache, sk); retry_until = icsk->icsk_syn_retries ? : sysctl_dccp_request_retries; } else { @@ -63,7 +63,7 @@ static int dccp_write_timeout(struct sock *sk) Golden words :-). */ - dst_negative_advice(&sk->sk_dst_cache); + dst_negative_advice(&sk->sk_dst_cache, sk); } retry_until = sysctl_dccp_retries2; diff --git a/net/decnet/af_decnet.c b/net/decnet/af_decnet.c index 4d3060660a14..664965c87e16 100644 --- a/net/decnet/af_decnet.c +++ b/net/decnet/af_decnet.c @@ -1955,7 +1955,7 @@ static int dn_sendmsg(struct kiocb *iocb, struct socket *sock, } if ((flags & MSG_TRYHARD) && sk->sk_dst_cache) - dst_negative_advice(&sk->sk_dst_cache); + dst_negative_advice(&sk->sk_dst_cache, sk); mss = scp->segsize_rem; fctype = scp->services_rem & NSP_FC_MASK; diff --git a/net/ipv4/tcp_timer.c b/net/ipv4/tcp_timer.c index 6e8996cb79d0..8353a538cd4c 100644 --- a/net/ipv4/tcp_timer.c +++ b/net/ipv4/tcp_timer.c @@ -141,14 +141,14 @@ static int tcp_write_timeout(struct sock *sk) if ((1 << sk->sk_state) & (TCPF_SYN_SENT | TCPF_SYN_RECV)) { if (icsk->icsk_retransmits) - dst_negative_advice(&sk->sk_dst_cache); + dst_negative_advice(&sk->sk_dst_cache, sk); retry_until = icsk->icsk_syn_retries ? : sysctl_tcp_syn_retries; } else { if (retransmits_timed_out(sk, sysctl_tcp_retries1)) { /* Black hole detection */ tcp_mtu_probing(icsk, sk); - dst_negative_advice(&sk->sk_dst_cache); + dst_negative_advice(&sk->sk_dst_cache, sk); } retry_until = sysctl_tcp_retries2; |