net: make kmem caches as __ro_after_init
All kmem caches aren't reallocated once set up.
Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/net/core/net_namespace.c b/net/core/net_namespace.c
index 27a5523..690e78c 100644
--- a/net/core/net_namespace.c
+++ b/net/core/net_namespace.c
@@ -362,7 +362,7 @@ static void dec_net_namespaces(struct ucounts *ucounts)
dec_ucount(ucounts, UCOUNT_NET_NAMESPACES);
}
-static struct kmem_cache *net_cachep;
+static struct kmem_cache *net_cachep __ro_after_init;
static struct workqueue_struct *netns_wq;
static struct net *net_alloc(void)