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-rw-r--r--include/net/if_inet6.h4
-rw-r--r--include/net/ipv6.h19
-rw-r--r--include/net/snmp.h14
3 files changed, 30 insertions, 7 deletions
diff --git a/include/net/if_inet6.h b/include/net/if_inet6.h
index 0c603fe65377..11cf373970a9 100644
--- a/include/net/if_inet6.h
+++ b/include/net/if_inet6.h
@@ -154,8 +154,8 @@ struct ifacaddr6 {
struct ipv6_devstat {
struct proc_dir_entry *proc_dir_entry;
DEFINE_SNMP_STAT(struct ipstats_mib, ipv6);
- DEFINE_SNMP_STAT(struct icmpv6_mib, icmpv6);
- DEFINE_SNMP_STAT(struct icmpv6msg_mib, icmpv6msg);
+ DEFINE_SNMP_STAT_ATOMIC(struct icmpv6_mib_device, icmpv6dev);
+ DEFINE_SNMP_STAT_ATOMIC(struct icmpv6msg_mib_device, icmpv6msgdev);
};
struct inet6_dev {
diff --git a/include/net/ipv6.h b/include/net/ipv6.h
index e1c60b43e73b..c033ed00df7d 100644
--- a/include/net/ipv6.h
+++ b/include/net/ipv6.h
@@ -123,6 +123,15 @@ extern struct ctl_path net_ipv6_ctl_path[];
SNMP_INC_STATS##modifier((net)->mib.statname##_statistics, (field));\
})
+/* per device counters are atomic_long_t */
+#define _DEVINCATOMIC(net, statname, modifier, idev, field) \
+({ \
+ struct inet6_dev *_idev = (idev); \
+ if (likely(_idev != NULL)) \
+ SNMP_INC_STATS_ATOMIC_LONG((_idev)->stats.statname##dev, (field)); \
+ SNMP_INC_STATS##modifier((net)->mib.statname##_statistics, (field));\
+})
+
#define _DEVADD(net, statname, modifier, idev, field, val) \
({ \
struct inet6_dev *_idev = (idev); \
@@ -154,16 +163,16 @@ extern struct ctl_path net_ipv6_ctl_path[];
#define IP6_UPD_PO_STATS_BH(net, idev,field,val) \
_DEVUPD(net, ipv6, 64_BH, idev, field, val)
#define ICMP6_INC_STATS(net, idev, field) \
- _DEVINC(net, icmpv6, , idev, field)
+ _DEVINCATOMIC(net, icmpv6, , idev, field)
#define ICMP6_INC_STATS_BH(net, idev, field) \
- _DEVINC(net, icmpv6, _BH, idev, field)
+ _DEVINCATOMIC(net, icmpv6, _BH, idev, field)
#define ICMP6MSGOUT_INC_STATS(net, idev, field) \
- _DEVINC(net, icmpv6msg, , idev, field +256)
+ _DEVINCATOMIC(net, icmpv6msg, , idev, field +256)
#define ICMP6MSGOUT_INC_STATS_BH(net, idev, field) \
- _DEVINC(net, icmpv6msg, _BH, idev, field +256)
+ _DEVINCATOMIC(net, icmpv6msg, _BH, idev, field +256)
#define ICMP6MSGIN_INC_STATS_BH(net, idev, field) \
- _DEVINC(net, icmpv6msg, _BH, idev, field)
+ _DEVINCATOMIC(net, icmpv6msg, _BH, idev, field)
struct ip6_ra_chain {
struct ip6_ra_chain *next;
diff --git a/include/net/snmp.h b/include/net/snmp.h
index 27461d6dd46f..479083a78b0c 100644
--- a/include/net/snmp.h
+++ b/include/net/snmp.h
@@ -72,14 +72,24 @@ struct icmpmsg_mib {
/* ICMP6 (IPv6-ICMP) */
#define ICMP6_MIB_MAX __ICMP6_MIB_MAX
+/* per network ns counters */
struct icmpv6_mib {
unsigned long mibs[ICMP6_MIB_MAX];
};
+/* per device counters, (shared on all cpus) */
+struct icmpv6_mib_device {
+ atomic_long_t mibs[ICMP6_MIB_MAX];
+};
#define ICMP6MSG_MIB_MAX __ICMP6MSG_MIB_MAX
+/* per network ns counters */
struct icmpv6msg_mib {
unsigned long mibs[ICMP6MSG_MIB_MAX];
};
+/* per device counters, (shared on all cpus) */
+struct icmpv6msg_mib_device {
+ atomic_long_t mibs[ICMP6MSG_MIB_MAX];
+};
/* TCP */
@@ -114,6 +124,8 @@ struct linux_xfrm_mib {
*/
#define DEFINE_SNMP_STAT(type, name) \
__typeof__(type) __percpu *name[2]
+#define DEFINE_SNMP_STAT_ATOMIC(type, name) \
+ __typeof__(type) *name
#define DECLARE_SNMP_STAT(type, name) \
extern __typeof__(type) __percpu *name[2]
@@ -124,6 +136,8 @@ struct linux_xfrm_mib {
__this_cpu_inc(mib[0]->mibs[field])
#define SNMP_INC_STATS_USER(mib, field) \
this_cpu_inc(mib[1]->mibs[field])
+#define SNMP_INC_STATS_ATOMIC_LONG(mib, field) \
+ atomic_long_inc(&mib->mibs[field])
#define SNMP_INC_STATS(mib, field) \
this_cpu_inc(mib[!in_softirq()]->mibs[field])
#define SNMP_DEC_STATS(mib, field) \