mib: put tcp statistics on struct net
Proc temporary uses stats from init_net.
BTW, TCP_XXX_STATS are beautiful (w/o do { } while (0) facing) again :)
Signed-off-by: Pavel Emelyanov <xemul@openvz.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/net/ipv4/af_inet.c b/net/ipv4/af_inet.c
index b4b77aa..c1a3e98 100644
--- a/net/ipv4/af_inet.c
+++ b/net/ipv4/af_inet.c
@@ -1342,11 +1342,20 @@
static __net_init int ipv4_mib_init_net(struct net *net)
{
+ if (snmp_mib_init((void **)net->mib.tcp_statistics,
+ sizeof(struct tcp_mib)) < 0)
+ goto err_tcp_mib;
+
+ tcp_mib_init(net);
return 0;
+
+err_tcp_mib:
+ return -ENOMEM;
}
static __net_exit void ipv4_mib_exit_net(struct net *net)
{
+ snmp_mib_free((void **)net->mib.tcp_statistics);
}
static __net_initdata struct pernet_operations ipv4_mib_ops = {
@@ -1368,9 +1377,6 @@
if (snmp_mib_init((void **)icmpmsg_statistics,
sizeof(struct icmpmsg_mib)) < 0)
goto err_icmpmsg_mib;
- if (snmp_mib_init((void **)tcp_statistics,
- sizeof(struct tcp_mib)) < 0)
- goto err_tcp_mib;
if (snmp_mib_init((void **)udp_statistics,
sizeof(struct udp_mib)) < 0)
goto err_udp_mib;
@@ -1378,8 +1384,6 @@
sizeof(struct udp_mib)) < 0)
goto err_udplite_mib;
- tcp_mib_init(&init_net);
-
if (register_pernet_subsys(&ipv4_mib_ops))
goto err_net;
@@ -1390,8 +1394,6 @@
err_udplite_mib:
snmp_mib_free((void **)udp_statistics);
err_udp_mib:
- snmp_mib_free((void **)tcp_statistics);
-err_tcp_mib:
snmp_mib_free((void **)icmpmsg_statistics);
err_icmpmsg_mib:
snmp_mib_free((void **)icmp_statistics);
diff --git a/net/ipv4/proc.c b/net/ipv4/proc.c
index eb5cee2..19e1d8e 100644
--- a/net/ipv4/proc.c
+++ b/net/ipv4/proc.c
@@ -359,11 +359,11 @@
/* MaxConn field is signed, RFC 2012 */
if (snmp4_tcp_list[i].entry == TCP_MIB_MAXCONN)
seq_printf(seq, " %ld",
- snmp_fold_field((void **)tcp_statistics,
+ snmp_fold_field((void **)init_net.mib.tcp_statistics,
snmp4_tcp_list[i].entry));
else
seq_printf(seq, " %lu",
- snmp_fold_field((void **)tcp_statistics,
+ snmp_fold_field((void **)init_net.mib.tcp_statistics,
snmp4_tcp_list[i].entry));
}
diff --git a/net/ipv4/tcp.c b/net/ipv4/tcp.c
index eec8cf7..827e613 100644
--- a/net/ipv4/tcp.c
+++ b/net/ipv4/tcp.c
@@ -277,8 +277,6 @@
int sysctl_tcp_fin_timeout __read_mostly = TCP_FIN_TIMEOUT;
-DEFINE_SNMP_STAT(struct tcp_mib, tcp_statistics) __read_mostly;
-
atomic_t tcp_orphan_count = ATOMIC_INIT(0);
EXPORT_SYMBOL_GPL(tcp_orphan_count);
@@ -2802,4 +2800,3 @@
EXPORT_SYMBOL(tcp_sendpage);
EXPORT_SYMBOL(tcp_setsockopt);
EXPORT_SYMBOL(tcp_shutdown);
-EXPORT_SYMBOL(tcp_statistics);