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>
diff --git a/net/ipv6/sit.c b/net/ipv6/sit.c
index 4699cd3..86618eb 100644
--- a/net/ipv6/sit.c
+++ b/net/ipv6/sit.c
@@ -1132,7 +1132,7 @@
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,