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| author | Eric Dumazet <eric.dumazet@gmail.com> | 2010-06-24 00:54:21 +0000 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2010-06-28 23:24:30 -0700 |
| commit | bc66154efe163a80f269d448572f7906756e9338 (patch) | |
| tree | 89c9996c9790a84958a756eed77b9780a785ff19 /include/linux/if_macvlan.h | |
| parent | 33d91f00c73ba0012bce18c1690cb8313ca7adaa (diff) | |
| download | lwn-bc66154efe163a80f269d448572f7906756e9338.tar.gz lwn-bc66154efe163a80f269d448572f7906756e9338.zip | |
macvlan: 64 bit rx counters
Use u64_stats_sync infrastructure to implement 64bit stats.
Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Acked-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include/linux/if_macvlan.h')
| -rw-r--r-- | include/linux/if_macvlan.h | 19 |
1 files changed, 12 insertions, 7 deletions
diff --git a/include/linux/if_macvlan.h b/include/linux/if_macvlan.h index c26a0e4f0ce8..e24ce6ea1fa3 100644 --- a/include/linux/if_macvlan.h +++ b/include/linux/if_macvlan.h @@ -6,6 +6,7 @@ #include <linux/netdevice.h> #include <linux/netlink.h> #include <net/netlink.h> +#include <linux/u64_stats_sync.h> #if defined(CONFIG_MACVTAP) || defined(CONFIG_MACVTAP_MODULE) struct socket *macvtap_get_socket(struct file *); @@ -27,14 +28,16 @@ struct macvtap_queue; * struct macvlan_rx_stats - MACVLAN percpu rx stats * @rx_packets: number of received packets * @rx_bytes: number of received bytes - * @multicast: number of received multicast packets + * @rx_multicast: number of received multicast packets + * @syncp: synchronization point for 64bit counters * @rx_errors: number of errors */ struct macvlan_rx_stats { - unsigned long rx_packets; - unsigned long rx_bytes; - unsigned long multicast; - unsigned long rx_errors; + u64 rx_packets; + u64 rx_bytes; + u64 rx_multicast; + struct u64_stats_sync syncp; + unsigned long rx_errors; }; struct macvlan_dev { @@ -56,12 +59,14 @@ static inline void macvlan_count_rx(const struct macvlan_dev *vlan, { struct macvlan_rx_stats *rx_stats; - rx_stats = per_cpu_ptr(vlan->rx_stats, smp_processor_id()); + rx_stats = this_cpu_ptr(vlan->rx_stats); if (likely(success)) { + u64_stats_update_begin(&rx_stats->syncp); rx_stats->rx_packets++;; rx_stats->rx_bytes += len; if (multicast) - rx_stats->multicast++; + rx_stats->rx_multicast++; + u64_stats_update_end(&rx_stats->syncp); } else { rx_stats->rx_errors++; } |