1 files changed, 9 insertions, 1 deletions

diff --git a/include/net/sock.h b/include/net/sock.h
index 5697caf8cc76..d24f382cb712 100644
--- a/include/net/sock.h
+++ b/include/net/sock.h
@@ -312,7 +312,7 @@ struct sock {
         void                    *sk_security;
 #endif
         __u32                   sk_mark;
-        /* XXX 4 bytes hole on 64 bit */
+        u32                     sk_classid;
         void                    (*sk_state_change)(struct sock *sk);
         void                    (*sk_data_ready)(struct sock *sk, int bytes);
         void                    (*sk_write_space)(struct sock *sk);
@@ -1074,6 +1074,14 @@ extern void *sock_kmalloc(struct sock *sk, int size,
 extern void sock_kfree_s(struct sock *sk, void *mem, int size);
 extern void sk_send_sigurg(struct sock *sk);
 
+#ifdef CONFIG_CGROUPS
+extern void sock_update_classid(struct sock *sk);
+#else
+static inline void sock_update_classid(struct sock *sk)
+{
+}
+#endif
+
 /*
  * Functions to fill in entries in struct proto_ops when a protocol
  * does not implement a particular function.