diff options
Diffstat (limited to 'net/l2tp/l2tp_netlink.c')
| -rw-r--r-- | net/l2tp/l2tp_netlink.c | 62 |
1 files changed, 46 insertions, 16 deletions
diff --git a/net/l2tp/l2tp_netlink.c b/net/l2tp/l2tp_netlink.c index bc8c3348f83..1dbb9772fc4 100644 --- a/net/l2tp/l2tp_netlink.c +++ b/net/l2tp/l2tp_netlink.c @@ -225,6 +225,8 @@ static int l2tp_nl_tunnel_send(struct sk_buff *skb, u32 pid, u32 seq, int flags, struct nlattr *nest; struct sock *sk = NULL; struct inet_sock *inet; + struct l2tp_stats stats; + unsigned int start; hdr = genlmsg_put(skb, pid, seq, &l2tp_nl_family, flags, L2TP_CMD_TUNNEL_GET); @@ -242,16 +244,28 @@ static int l2tp_nl_tunnel_send(struct sk_buff *skb, u32 pid, u32 seq, int flags, if (nest == NULL) goto nla_put_failure; - if (nla_put_u64(skb, L2TP_ATTR_TX_PACKETS, tunnel->stats.tx_packets) || - nla_put_u64(skb, L2TP_ATTR_TX_BYTES, tunnel->stats.tx_bytes) || - nla_put_u64(skb, L2TP_ATTR_TX_ERRORS, tunnel->stats.tx_errors) || - nla_put_u64(skb, L2TP_ATTR_RX_PACKETS, tunnel->stats.rx_packets) || - nla_put_u64(skb, L2TP_ATTR_RX_BYTES, tunnel->stats.rx_bytes) || + do { + start = u64_stats_fetch_begin(&tunnel->stats.syncp); + stats.tx_packets = tunnel->stats.tx_packets; + stats.tx_bytes = tunnel->stats.tx_bytes; + stats.tx_errors = tunnel->stats.tx_errors; + stats.rx_packets = tunnel->stats.rx_packets; + stats.rx_bytes = tunnel->stats.rx_bytes; + stats.rx_errors = tunnel->stats.rx_errors; + stats.rx_seq_discards = tunnel->stats.rx_seq_discards; + stats.rx_oos_packets = tunnel->stats.rx_oos_packets; + } while (u64_stats_fetch_retry(&tunnel->stats.syncp, start)); + + if (nla_put_u64(skb, L2TP_ATTR_TX_PACKETS, stats.tx_packets) || + nla_put_u64(skb, L2TP_ATTR_TX_BYTES, stats.tx_bytes) || + nla_put_u64(skb, L2TP_ATTR_TX_ERRORS, stats.tx_errors) || + nla_put_u64(skb, L2TP_ATTR_RX_PACKETS, stats.rx_packets) || + nla_put_u64(skb, L2TP_ATTR_RX_BYTES, stats.rx_bytes) || nla_put_u64(skb, L2TP_ATTR_RX_SEQ_DISCARDS, - tunnel->stats.rx_seq_discards) || + stats.rx_seq_discards) || nla_put_u64(skb, L2TP_ATTR_RX_OOS_PACKETS, - tunnel->stats.rx_oos_packets) || - nla_put_u64(skb, L2TP_ATTR_RX_ERRORS, tunnel->stats.rx_errors)) + stats.rx_oos_packets) || + nla_put_u64(skb, L2TP_ATTR_RX_ERRORS, stats.rx_errors)) goto nla_put_failure; nla_nest_end(skb, nest); @@ -563,6 +577,8 @@ static int l2tp_nl_session_send(struct sk_buff *skb, u32 pid, u32 seq, int flags struct nlattr *nest; struct l2tp_tunnel *tunnel = session->tunnel; struct sock *sk = NULL; + struct l2tp_stats stats; + unsigned int start; sk = tunnel->sock; @@ -600,19 +616,33 @@ static int l2tp_nl_session_send(struct sk_buff *skb, u32 pid, u32 seq, int flags (session->reorder_timeout && nla_put_msecs(skb, L2TP_ATTR_RECV_TIMEOUT, session->reorder_timeout))) goto nla_put_failure; + nest = nla_nest_start(skb, L2TP_ATTR_STATS); if (nest == NULL) goto nla_put_failure; - if (nla_put_u64(skb, L2TP_ATTR_TX_PACKETS, session->stats.tx_packets) || - nla_put_u64(skb, L2TP_ATTR_TX_BYTES, session->stats.tx_bytes) || - nla_put_u64(skb, L2TP_ATTR_TX_ERRORS, session->stats.tx_errors) || - nla_put_u64(skb, L2TP_ATTR_RX_PACKETS, session->stats.rx_packets) || - nla_put_u64(skb, L2TP_ATTR_RX_BYTES, session->stats.rx_bytes) || + + do { + start = u64_stats_fetch_begin(&session->stats.syncp); + stats.tx_packets = session->stats.tx_packets; + stats.tx_bytes = session->stats.tx_bytes; + stats.tx_errors = session->stats.tx_errors; + stats.rx_packets = session->stats.rx_packets; + stats.rx_bytes = session->stats.rx_bytes; + stats.rx_errors = session->stats.rx_errors; + stats.rx_seq_discards = session->stats.rx_seq_discards; + stats.rx_oos_packets = session->stats.rx_oos_packets; + } while (u64_stats_fetch_retry(&session->stats.syncp, start)); + + if (nla_put_u64(skb, L2TP_ATTR_TX_PACKETS, stats.tx_packets) || + nla_put_u64(skb, L2TP_ATTR_TX_BYTES, stats.tx_bytes) || + nla_put_u64(skb, L2TP_ATTR_TX_ERRORS, stats.tx_errors) || + nla_put_u64(skb, L2TP_ATTR_RX_PACKETS, stats.rx_packets) || + nla_put_u64(skb, L2TP_ATTR_RX_BYTES, stats.rx_bytes) || nla_put_u64(skb, L2TP_ATTR_RX_SEQ_DISCARDS, - session->stats.rx_seq_discards) || + stats.rx_seq_discards) || nla_put_u64(skb, L2TP_ATTR_RX_OOS_PACKETS, - session->stats.rx_oos_packets) || - nla_put_u64(skb, L2TP_ATTR_RX_ERRORS, session->stats.rx_errors)) + stats.rx_oos_packets) || + nla_put_u64(skb, L2TP_ATTR_RX_ERRORS, stats.rx_errors)) goto nla_put_failure; nla_nest_end(skb, nest); |