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MIB: add struct net to UDP_INC_STATS_BH
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Two special cases here - one is rxrpc - I put init_net there
explicitly, since we haven't touched this part yet. The second
place is in __udp4_lib_rcv - we already have a struct net there,
but I have to move its initialization above to make it ready
at the "drop" label.

Signed-off-by: Pavel Emelyanov <xemul@openvz.org>
Acked-by: Denis V. Lunev <den@openvz.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Pavel Emelyanov authored and David S. Miller committed Jul 6, 2008
1 parent 629ca23 commit 0283328
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Showing 3 changed files with 16 additions and 13 deletions.
6 changes: 3 additions & 3 deletions include/net/udp.h
View file
Original file line number Diff line number Diff line change
Expand Up @@ -161,7 +161,7 @@ DECLARE_SNMP_STAT(struct udp_mib, udplite_stats_in6);
#define UDP_INC_STATS_USER(net, field, is_udplite) do { (void)net; \
if (is_udplite) SNMP_INC_STATS_USER(udplite_statistics, field); \
else SNMP_INC_STATS_USER(udp_statistics, field); } while(0)
#define UDP_INC_STATS_BH(field, is_udplite) do { \
#define UDP_INC_STATS_BH(net, field, is_udplite) do { (void)net; \
if (is_udplite) SNMP_INC_STATS_BH(udplite_statistics, field); \
else SNMP_INC_STATS_BH(udp_statistics, field); } while(0)

Expand All @@ -176,12 +176,12 @@ DECLARE_SNMP_STAT(struct udp_mib, udplite_stats_in6);
#define UDPX_INC_STATS_BH(sk, field) \
do { \
if ((sk)->sk_family == AF_INET) \
UDP_INC_STATS_BH(field, 0); \
UDP_INC_STATS_BH(sock_net(sk), field, 0); \
else \
UDP6_INC_STATS_BH(field, 0); \
} while (0);
#else
#define UDPX_INC_STATS_BH(sk, field) UDP_INC_STATS_BH(field, 0)
#define UDPX_INC_STATS_BH(sk, field) UDP_INC_STATS_BH(sock_net(sk), field, 0)
#endif

/* /proc */
Expand Down
18 changes: 10 additions & 8 deletions net/ipv4/udp.c
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Original file line number Diff line number Diff line change
Expand Up @@ -991,7 +991,8 @@ int udp_queue_rcv_skb(struct sock * sk, struct sk_buff *skb)

ret = (*up->encap_rcv)(sk, skb);
if (ret <= 0) {
UDP_INC_STATS_BH(UDP_MIB_INDATAGRAMS,
UDP_INC_STATS_BH(sock_net(sk),
UDP_MIB_INDATAGRAMS,
is_udplite);
return -ret;
}
Expand Down Expand Up @@ -1044,7 +1045,8 @@ int udp_queue_rcv_skb(struct sock * sk, struct sk_buff *skb)
if ((rc = sock_queue_rcv_skb(sk,skb)) < 0) {
/* Note that an ENOMEM error is charged twice */
if (rc == -ENOMEM) {
UDP_INC_STATS_BH(UDP_MIB_RCVBUFERRORS, is_udplite);
UDP_INC_STATS_BH(sock_net(sk),
UDP_MIB_RCVBUFERRORS, is_udplite);
atomic_inc(&sk->sk_drops);
}
goto drop;
Expand All @@ -1053,7 +1055,7 @@ int udp_queue_rcv_skb(struct sock * sk, struct sk_buff *skb)
return 0;

drop:
UDP_INC_STATS_BH(UDP_MIB_INERRORS, is_udplite);
UDP_INC_STATS_BH(sock_net(sk), UDP_MIB_INERRORS, is_udplite);
kfree_skb(skb);
return -1;
}
Expand Down Expand Up @@ -1161,7 +1163,7 @@ int __udp4_lib_rcv(struct sk_buff *skb, struct hlist_head udptable[],
struct rtable *rt = (struct rtable*)skb->dst;
__be32 saddr = ip_hdr(skb)->saddr;
__be32 daddr = ip_hdr(skb)->daddr;
struct net *net;
struct net *net = dev_net(skb->dev);

/*
* Validate the packet.
Expand All @@ -1183,7 +1185,6 @@ int __udp4_lib_rcv(struct sk_buff *skb, struct hlist_head udptable[],
if (udp4_csum_init(skb, uh, proto))
goto csum_error;

net = dev_net(skb->dev);
if (rt->rt_flags & (RTCF_BROADCAST|RTCF_MULTICAST))
return __udp4_lib_mcast_deliver(net, skb, uh,
saddr, daddr, udptable);
Expand Down Expand Up @@ -1217,7 +1218,7 @@ int __udp4_lib_rcv(struct sk_buff *skb, struct hlist_head udptable[],
if (udp_lib_checksum_complete(skb))
goto csum_error;

UDP_INC_STATS_BH(UDP_MIB_NOPORTS, proto == IPPROTO_UDPLITE);
UDP_INC_STATS_BH(net, UDP_MIB_NOPORTS, proto == IPPROTO_UDPLITE);
icmp_send(skb, ICMP_DEST_UNREACH, ICMP_PORT_UNREACH, 0);

/*
Expand Down Expand Up @@ -1251,7 +1252,7 @@ int __udp4_lib_rcv(struct sk_buff *skb, struct hlist_head udptable[],
ntohs(uh->dest),
ulen);
drop:
UDP_INC_STATS_BH(UDP_MIB_INERRORS, proto == IPPROTO_UDPLITE);
UDP_INC_STATS_BH(net, UDP_MIB_INERRORS, proto == IPPROTO_UDPLITE);
kfree_skb(skb);
return 0;
}
Expand Down Expand Up @@ -1458,7 +1459,8 @@ unsigned int udp_poll(struct file *file, struct socket *sock, poll_table *wait)
spin_lock_bh(&rcvq->lock);
while ((skb = skb_peek(rcvq)) != NULL &&
udp_lib_checksum_complete(skb)) {
UDP_INC_STATS_BH(UDP_MIB_INERRORS, is_lite);
UDP_INC_STATS_BH(sock_net(sk),
UDP_MIB_INERRORS, is_lite);
__skb_unlink(skb, rcvq);
kfree_skb(skb);
}
Expand Down
5 changes: 3 additions & 2 deletions net/rxrpc/ar-input.c
View file
Original file line number Diff line number Diff line change
Expand Up @@ -21,6 +21,7 @@
#include <net/af_rxrpc.h>
#include <net/ip.h>
#include <net/udp.h>
#include <net/net_namespace.h>
#include "ar-internal.h"

unsigned long rxrpc_ack_timeout = 1;
Expand Down Expand Up @@ -708,12 +709,12 @@ void rxrpc_data_ready(struct sock *sk, int count)
if (skb_checksum_complete(skb)) {
rxrpc_free_skb(skb);
rxrpc_put_local(local);
UDP_INC_STATS_BH(UDP_MIB_INERRORS, 0);
UDP_INC_STATS_BH(&init_net, UDP_MIB_INERRORS, 0);
_leave(" [CSUM failed]");
return;
}

UDP_INC_STATS_BH(UDP_MIB_INDATAGRAMS, 0);
UDP_INC_STATS_BH(&init_net, UDP_MIB_INDATAGRAMS, 0);

/* the socket buffer we have is owned by UDP, with UDP's data all over
* it, but we really want our own */
Expand Down

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