mib: put udp statistics on struct net
Pavel Emelyanov [Fri, 18 Jul 2008 11:03:27 +0000 (04:03 -0700)]
Similar to... ouch, I repeat myself.

Signed-off-by: Pavel Emelyanov <xemul@openvz.org>
Signed-off-by: David S. Miller <davem@davemloft.net>

include/net/netns/mib.h
include/net/udp.h
net/ipv4/af_inet.c
net/ipv4/proc.c
net/ipv4/udp.c

index b5b1115..738c87c 100644 (file)
@@ -7,6 +7,7 @@ struct netns_mib {
        DEFINE_SNMP_STAT(struct tcp_mib, tcp_statistics);
        DEFINE_SNMP_STAT(struct ipstats_mib, ip_statistics);
        DEFINE_SNMP_STAT(struct linux_mib, net_statistics);
+       DEFINE_SNMP_STAT(struct udp_mib, udp_statistics);
 };
 
 #endif
index 3e55159..ba55441 100644 (file)
@@ -148,7 +148,6 @@ extern int  udp_lib_setsockopt(struct sock *sk, int level, int optname,
                                   char __user *optval, int optlen,
                                   int (*push_pending_frames)(struct sock *));
 
-DECLARE_SNMP_STAT(struct udp_mib, udp_statistics);
 DECLARE_SNMP_STAT(struct udp_mib, udp_stats_in6);
 
 /* UDP-Lite does not have a standardized MIB yet, so we inherit from UDP */
@@ -158,12 +157,12 @@ DECLARE_SNMP_STAT(struct udp_mib, udplite_stats_in6);
 /*
  *     SNMP statistics for UDP and UDP-Lite
  */
-#define UDP_INC_STATS_USER(net, field, is_udplite)           do { (void)net; \
+#define UDP_INC_STATS_USER(net, field, is_udplite)           do { \
        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(net, field, is_udplite)             do { (void)net; \
+       else            SNMP_INC_STATS_USER((net)->mib.udp_statistics, field);  }  while(0)
+#define UDP_INC_STATS_BH(net, field, is_udplite)             do { \
        if (is_udplite) SNMP_INC_STATS_BH(udplite_statistics, field);         \
-       else            SNMP_INC_STATS_BH(udp_statistics, field);    }  while(0)
+       else            SNMP_INC_STATS_BH((net)->mib.udp_statistics, field);    }  while(0)
 
 #define UDP6_INC_STATS_BH(net, field, is_udplite)          do { (void)net;  \
        if (is_udplite) SNMP_INC_STATS_BH(udplite_stats_in6, field);         \
index 776ed31..1f41816 100644 (file)
@@ -1349,10 +1349,15 @@ static __net_init int ipv4_mib_init_net(struct net *net)
        if (snmp_mib_init((void **)net->mib.net_statistics,
                          sizeof(struct linux_mib)) < 0)
                goto err_net_mib;
+       if (snmp_mib_init((void **)net->mib.udp_statistics,
+                         sizeof(struct udp_mib)) < 0)
+               goto err_udp_mib;
 
        tcp_mib_init(net);
        return 0;
 
+err_udp_mib:
+       snmp_mib_free((void **)net->mib.net_statistics);
 err_net_mib:
        snmp_mib_free((void **)net->mib.ip_statistics);
 err_ip_mib:
@@ -1363,6 +1368,7 @@ err_tcp_mib:
 
 static __net_exit void ipv4_mib_exit_net(struct net *net)
 {
+       snmp_mib_free((void **)net->mib.udp_statistics);
        snmp_mib_free((void **)net->mib.net_statistics);
        snmp_mib_free((void **)net->mib.ip_statistics);
        snmp_mib_free((void **)net->mib.tcp_statistics);
@@ -1381,9 +1387,6 @@ static int __init init_ipv4_mibs(void)
        if (snmp_mib_init((void **)icmpmsg_statistics,
                          sizeof(struct icmpmsg_mib)) < 0)
                goto err_icmpmsg_mib;
-       if (snmp_mib_init((void **)udp_statistics,
-                         sizeof(struct udp_mib)) < 0)
-               goto err_udp_mib;
        if (snmp_mib_init((void **)udplite_statistics,
                          sizeof(struct udp_mib)) < 0)
                goto err_udplite_mib;
@@ -1396,8 +1399,6 @@ static int __init init_ipv4_mibs(void)
 err_net:
        snmp_mib_free((void **)udplite_statistics);
 err_udplite_mib:
-       snmp_mib_free((void **)udp_statistics);
-err_udp_mib:
        snmp_mib_free((void **)icmpmsg_statistics);
 err_icmpmsg_mib:
        snmp_mib_free((void **)icmp_statistics);
index ef38b1d..869085c 100644 (file)
@@ -374,7 +374,7 @@ static int snmp_seq_show(struct seq_file *seq, void *v)
        seq_puts(seq, "\nUdp:");
        for (i = 0; snmp4_udp_list[i].name != NULL; i++)
                seq_printf(seq, " %lu",
-                          snmp_fold_field((void **)udp_statistics,
+                          snmp_fold_field((void **)init_net.mib.udp_statistics,
                                           snmp4_udp_list[i].entry));
 
        /* the UDP and UDP-Lite MIBs are the same */
index 1560d11..a751770 100644 (file)
  *     Snmp MIB for the UDP layer
  */
 
-DEFINE_SNMP_STAT(struct udp_mib, udp_statistics) __read_mostly;
-EXPORT_SYMBOL(udp_statistics);
-
 DEFINE_SNMP_STAT(struct udp_mib, udp_stats_in6) __read_mostly;
 EXPORT_SYMBOL(udp_stats_in6);