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authorstephen hemminger <shemminger@vyatta.com>2010-03-02 16:32:09 +0300
committerDavid S. Miller <davem@davemloft.net>2010-03-17 07:23:19 +0300
commit14bb4789833a2e2610f30e2d3e1451701ac96ec1 (patch)
tree992a40f1c885d22f6bce27d270e5839b1d8d121b /net/bridge/br_private.h
parent0a9627f2649a02bea165cfd529d7bcb625c2fcad (diff)
downloadlinux-14bb4789833a2e2610f30e2d3e1451701ac96ec1.tar.xz
bridge: per-cpu packet statistics (v3)
The shared packet statistics are a potential source of slow down on bridged traffic. Convert to per-cpu array, but only keep those statistics which change per-packet. Signed-off-by: Stephen Hemminger <shemminger@vyatta.com> Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/bridge/br_private.h')
-rw-r--r--net/bridge/br_private.h8
1 files changed, 8 insertions, 0 deletions
diff --git a/net/bridge/br_private.h b/net/bridge/br_private.h
index 846d7d1e2075..791d4ab0fd4d 100644
--- a/net/bridge/br_private.h
+++ b/net/bridge/br_private.h
@@ -135,6 +135,14 @@ struct net_bridge
spinlock_t lock;
struct list_head port_list;
struct net_device *dev;
+
+ struct br_cpu_netstats __percpu {
+ unsigned long rx_packets;
+ unsigned long rx_bytes;
+ unsigned long tx_packets;
+ unsigned long tx_bytes;
+ } *stats;
+
spinlock_t hash_lock;
struct hlist_head hash[BR_HASH_SIZE];
unsigned long feature_mask;