tunnels: add _rcu annotations

(struct ip6_tnl)->next is rcu protected :
(struct ip_tunnel)->next is rcu protected :
(struct xfrm6_tunnel)->next is rcu protected :

add __rcu annotation and proper rcu primitives.

Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

3 files changed, 3 insertions, 3 deletions

diff --git a/include/net/ip6_tunnel.h b/include/net/ip6_tunnel.h
index fc94ec568a50..fc73e667b50e 100644
--- a/include/net/ip6_tunnel.h
+++ b/include/net/ip6_tunnel.h
@@ -13,7 +13,7 @@
 /* IPv6 tunnel */
 
 struct ip6_tnl {
-        struct ip6_tnl *next;   /* next tunnel in list */
+        struct ip6_tnl __rcu *next;     /* next tunnel in list */
         struct net_device *dev; /* virtual device associated with tunnel */
         struct ip6_tnl_parm parms;      /* tunnel configuration parameters */
         struct flowi fl;        /* flowi template for xmit */
diff --git a/include/net/ipip.h b/include/net/ipip.h
index 58abbf966b0c..0403fe4c4519 100644
--- a/include/net/ipip.h
+++ b/include/net/ipip.h
@@ -16,7 +16,7 @@ struct ip_tunnel_6rd_parm {
 };
 
 struct ip_tunnel {
-        struct ip_tunnel        *next;
+        struct ip_tunnel __rcu  *next;
         struct net_device       *dev;
 
         int                     err_count;      /* Number of arrived ICMP errors */
diff --git a/include/net/xfrm.h b/include/net/xfrm.h
index f28d7c9b9f8d..ffcd47820a5b 100644
--- a/include/net/xfrm.h
+++ b/include/net/xfrm.h
@@ -1272,7 +1272,7 @@ struct xfrm6_tunnel {
         int (*handler)(struct sk_buff *skb);
         int (*err_handler)(struct sk_buff *skb, struct inet6_skb_parm *opt,
                            u8 type, u8 code, int offset, __be32 info);
-        struct xfrm6_tunnel *next;
+        struct xfrm6_tunnel __rcu *next;
         int priority;
 };