net: struct xfrm_tunnel in read_mostly section

tunnel4_handlers chain being scanned for each incoming packet,
make sure it doesnt share an often dirtied cache line.

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

1 files changed, 1 insertions, 1 deletions

diff --git a/net/ipv6/sit.c b/net/ipv6/sit.c
index 4699cd3c3118..86618eb30335 100644
--- a/net/ipv6/sit.c
+++ b/net/ipv6/sit.c
@@ -1132,7 +1132,7 @@ static void __net_init ipip6_fb_tunnel_init(struct net_device *dev)
         sitn->tunnels_wc[0]     = tunnel;
 }
 
-static struct xfrm_tunnel sit_handler = {
+static struct xfrm_tunnel sit_handler __read_mostly = {
         .handler        =       ipip6_rcv,
         .err_handler    =       ipip6_err,
         .priority       =       1,