[NETFILTER]: x_tables: mark matches and targets __read_mostly

Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/net/netfilter/xt_hashlimit.c b/net/netfilter/xt_hashlimit.c
index 094da6e..5a6ea9b 100644
--- a/net/netfilter/xt_hashlimit.c
+++ b/net/netfilter/xt_hashlimit.c
@@ -578,7 +578,7 @@
 }
 #endif
 
-static struct xt_match xt_hashlimit[] = {
+static struct xt_match xt_hashlimit[] __read_mostly = {
 	{
 		.name		= "hashlimit",
 		.family		= AF_INET,