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| author | Eric Dumazet <eric.dumazet@gmail.com> | 2010-06-30 22:31:19 +0200 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2010-06-30 22:31:19 +0200 |
| commit | 4ce3c183fcade7f4b30a33dae90cd774c3d9e094 (patch) | |
| tree | 84d5a130da50096fdbeb7fffea596dffe2cebd80 /include/net/ip.h | |
| parent | be2net: memory barrier fixes on IBM p7 platform (diff) | |
| download | linux-4ce3c183fcade7f4b30a33dae90cd774c3d9e094.tar.xz linux-4ce3c183fcade7f4b30a33dae90cd774c3d9e094.zip | |
snmp: 64bit ipstats_mib for all arches
/proc/net/snmp and /proc/net/netstat expose SNMP counters.
Width of these counters is either 32 or 64 bits, depending on the size
of "unsigned long" in kernel.
This means user program parsing these files must already be prepared to
deal with 64bit values, regardless of user program being 32 or 64 bit.
This patch introduces 64bit snmp values for IPSTAT mib, where some
counters can wrap pretty fast if they are 32bit wide.
# netstat -s|egrep "InOctets|OutOctets"
InOctets: 244068329096
OutOctets: 244069348848
Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include/net/ip.h')
| -rw-r--r-- | include/net/ip.h | 20 |
1 files changed, 14 insertions, 6 deletions
diff --git a/include/net/ip.h b/include/net/ip.h index 3b524df7dddb..890f9725d681 100644 --- a/include/net/ip.h +++ b/include/net/ip.h @@ -165,12 +165,12 @@ struct ipv4_config { }; extern struct ipv4_config ipv4_config; -#define IP_INC_STATS(net, field) SNMP_INC_STATS((net)->mib.ip_statistics, field) -#define IP_INC_STATS_BH(net, field) SNMP_INC_STATS_BH((net)->mib.ip_statistics, field) -#define IP_ADD_STATS(net, field, val) SNMP_ADD_STATS((net)->mib.ip_statistics, field, val) -#define IP_ADD_STATS_BH(net, field, val) SNMP_ADD_STATS_BH((net)->mib.ip_statistics, field, val) -#define IP_UPD_PO_STATS(net, field, val) SNMP_UPD_PO_STATS((net)->mib.ip_statistics, field, val) -#define IP_UPD_PO_STATS_BH(net, field, val) SNMP_UPD_PO_STATS_BH((net)->mib.ip_statistics, field, val) +#define IP_INC_STATS(net, field) SNMP_INC_STATS64((net)->mib.ip_statistics, field) +#define IP_INC_STATS_BH(net, field) SNMP_INC_STATS64_BH((net)->mib.ip_statistics, field) +#define IP_ADD_STATS(net, field, val) SNMP_ADD_STATS64((net)->mib.ip_statistics, field, val) +#define IP_ADD_STATS_BH(net, field, val) SNMP_ADD_STATS64_BH((net)->mib.ip_statistics, field, val) +#define IP_UPD_PO_STATS(net, field, val) SNMP_UPD_PO_STATS64((net)->mib.ip_statistics, field, val) +#define IP_UPD_PO_STATS_BH(net, field, val) SNMP_UPD_PO_STATS64_BH((net)->mib.ip_statistics, field, val) #define NET_INC_STATS(net, field) SNMP_INC_STATS((net)->mib.net_statistics, field) #define NET_INC_STATS_BH(net, field) SNMP_INC_STATS_BH((net)->mib.net_statistics, field) #define NET_INC_STATS_USER(net, field) SNMP_INC_STATS_USER((net)->mib.net_statistics, field) @@ -178,6 +178,14 @@ extern struct ipv4_config ipv4_config; #define NET_ADD_STATS_USER(net, field, adnd) SNMP_ADD_STATS_USER((net)->mib.net_statistics, field, adnd) extern unsigned long snmp_fold_field(void __percpu *mib[], int offt); +#if BITS_PER_LONG==32 +extern u64 snmp_fold_field64(void __percpu *mib[], int offt, size_t sync_off); +#else +static inline u64 snmp_fold_field64(void __percpu *mib[], int offt, size_t syncp_off) +{ + return snmp_fold_field(mib, offt); +} +#endif extern int snmp_mib_init(void __percpu *ptr[2], size_t mibsize, size_t align); extern void snmp_mib_free(void __percpu *ptr[2]); |