diff options
| author |   Tom Herbert <therbert@google.com> | 2014-01-02 11:48:33 -0800 |
|---|---|---|
| committer |   David S. Miller <davem@davemloft.net> | 2014-01-03 19:40:57 -0500 |
| commit | 9a4aa9af447f784f0a47313c8dcb79ac63442cf7 (patch) | |
| tree | e5e6d38f79704d282679a06d6bf00cf819a85d7a /include/net/ip_tunnels.h | |
| parent | ipv4: Cache dst in tunnels (diff) | |
| download | linux-dev-9a4aa9af447f784f0a47313c8dcb79ac63442cf7.tar.xz linux-dev-9a4aa9af447f784f0a47313c8dcb79ac63442cf7.zip | |
ipv4: Use percpu Cache route in IP tunnels
percpu route cache eliminates share of dst refcnt between CPUs.
Signed-off-by: Tom Herbert <therbert@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include/net/ip_tunnels.h')
| -rw-r--r-- | include/net/ip_tunnels.h | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/include/net/ip_tunnels.h b/include/net/ip_tunnels.h index bde50fc5b4f0..9e25b1bc31da 100644 --- a/include/net/ip_tunnels.h +++ b/include/net/ip_tunnels.h @@ -38,6 +38,11 @@ struct ip_tunnel_prl_entry { struct rcu_head rcu_head; }; +struct ip_tunnel_dst { + struct dst_entry __rcu *dst; + spinlock_t lock; +}; + struct ip_tunnel { struct ip_tunnel __rcu *next; struct hlist_node hash_node; @@ -54,8 +59,7 @@ struct ip_tunnel { int hlen; /* Precalculated header length */ int mlink; - struct dst_entry __rcu *dst_cache; - spinlock_t dst_lock; + struct ip_tunnel_dst __percpu *dst_cache; struct ip_tunnel_parm parms; |