From 8edf19c2fe028563fc6ea9cb1995b8ee4172d4b6 Mon Sep 17 00:00:00 2001 From: Eric Dumazet Date: Thu, 15 Oct 2009 00:12:40 +0000 Subject: [PATCH] net: sk_drops consolidation part 2 - skb_kill_datagram() can increment sk->sk_drops itself, not callers. - UDP on IPV4 & IPV6 dropped frames (because of bad checksum or policy checks) increment sk_drops Signed-off-by: Eric Dumazet Signed-off-by: David S. Miller --- net/core/datagram.c | 1 + net/ipv4/udp.c | 2 ++ net/ipv6/raw.c | 1 - net/ipv6/udp.c | 4 +++- 4 files changed, 6 insertions(+), 2 deletions(-) diff --git a/net/core/datagram.c b/net/core/datagram.c index 1c6cf3a1a4f..4d57f5e12b0 100644 --- a/net/core/datagram.c +++ b/net/core/datagram.c @@ -262,6 +262,7 @@ int skb_kill_datagram(struct sock *sk, struct sk_buff *skb, unsigned int flags) } kfree_skb(skb); + atomic_inc(&sk->sk_drops); sk_mem_reclaim_partial(sk); return err; diff --git a/net/ipv4/udp.c b/net/ipv4/udp.c index ec5c7a720c0..4274c1cc78f 100644 --- a/net/ipv4/udp.c +++ b/net/ipv4/udp.c @@ -867,6 +867,7 @@ static unsigned int first_packet_length(struct sock *sk) udp_lib_checksum_complete(skb)) { UDP_INC_STATS_BH(sock_net(sk), UDP_MIB_INERRORS, IS_UDPLITE(sk)); + atomic_inc(&sk->sk_drops); __skb_unlink(skb, rcvq); __skb_queue_tail(&list_kill, skb); } @@ -1186,6 +1187,7 @@ int udp_queue_rcv_skb(struct sock *sk, struct sk_buff *skb) drop: UDP_INC_STATS_BH(sock_net(sk), UDP_MIB_INERRORS, is_udplite); + atomic_inc(&sk->sk_drops); kfree_skb(skb); return -1; } diff --git a/net/ipv6/raw.c b/net/ipv6/raw.c index 52ed7d7f9da..cb834ab7f07 100644 --- a/net/ipv6/raw.c +++ b/net/ipv6/raw.c @@ -517,7 +517,6 @@ csum_copy_err: as some normal condition. */ err = (flags&MSG_DONTWAIT) ? -EAGAIN : -EHOSTUNREACH; - atomic_inc(&sk->sk_drops); goto out; } diff --git a/net/ipv6/udp.c b/net/ipv6/udp.c index 829d300a6f3..d3b59d73f50 100644 --- a/net/ipv6/udp.c +++ b/net/ipv6/udp.c @@ -390,11 +390,13 @@ int udpv6_queue_rcv_skb(struct sock * sk, struct sk_buff *skb) if (rc == -ENOMEM) UDP6_INC_STATS_BH(sock_net(sk), UDP_MIB_RCVBUFERRORS, is_udplite); - goto drop; + goto drop_no_sk_drops_inc; } return 0; drop: + atomic_inc(&sk->sk_drops); +drop_no_sk_drops_inc: UDP6_INC_STATS_BH(sock_net(sk), UDP_MIB_INERRORS, is_udplite); kfree_skb(skb); return -1; -- 2.41.0