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| author |   Jia He <hejianet@gmail.com> | 2016-09-30 11:28:58 +0800 |
|---|---|---|
| committer |   David S. Miller <davem@davemloft.net> | 2016-09-30 01:50:44 -0400 |
| commit | 6348ef2dbbd96c4488a1ee83cc0f0f3d9a314a2f (patch) | |
| tree | 4ceef4c17cfc9396015caee36eef7222e81f188b /include/net/ip.h | |
| parent | Merge tag 'rxrpc-rewrite-20160929' of git://git.kernel.org/pub/scm/linux/kernel/git/dhowells/linux-fs (diff) | |
| download | linux-dev-6348ef2dbbd96c4488a1ee83cc0f0f3d9a314a2f.tar.xz linux-dev-6348ef2dbbd96c4488a1ee83cc0f0f3d9a314a2f.zip | |
net:snmp: Introduce generic interfaces for snmp_get_cpu_field{, 64}
This is to introduce the generic interfaces for snmp_get_cpu_field{,64}.
It exchanges the two for-loops for collecting the percpu statistics data.
This can aggregate the data by going through all the items of each cpu
sequentially.
Signed-off-by: Jia He <hejianet@gmail.com>
Suggested-by: Marcelo Ricardo Leitner <marcelo.leitner@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 | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/include/net/ip.h b/include/net/ip.h index 9742b92dc933..bc43c0fcae12 100644 --- a/include/net/ip.h +++ b/include/net/ip.h @@ -219,6 +219,29 @@ static inline u64 snmp_fold_field64(void __percpu *mib, int offt, size_t syncp_o } #endif +#define snmp_get_cpu_field64_batch(buff64, stats_list, mib_statistic, offset) \ +{ \ + int i, c; \ + for_each_possible_cpu(c) { \ + for (i = 0; stats_list[i].name; i++) \ + buff64[i] += snmp_get_cpu_field64( \ + mib_statistic, \ + c, stats_list[i].entry, \ + offset); \ + } \ +} + +#define snmp_get_cpu_field_batch(buff, stats_list, mib_statistic) \ +{ \ + int i, c; \ + for_each_possible_cpu(c) { \ + for (i = 0; stats_list[i].name; i++) \ + buff[i] += snmp_get_cpu_field( \ + mib_statistic, \ + c, stats_list[i].entry); \ + } \ +} + void inet_get_local_port_range(struct net *net, int *low, int *high); #ifdef CONFIG_SYSCTL |