1 files changed, 31 insertions, 37 deletions

diff --git a/include/net/sock.h b/include/net/sock.h
index 5697caf8cc76..a441c9cdd625 100644
--- a/include/net/sock.h
+++ b/include/net/sock.h
@@ -295,7 +295,8 @@ struct sock {
         unsigned short          sk_ack_backlog;
         unsigned short          sk_max_ack_backlog;
         __u32                   sk_priority;
-        struct ucred            sk_peercred;
+        struct pid              *sk_peer_pid;
+        const struct cred       *sk_peer_cred;
         long                    sk_rcvtimeo;
         long                    sk_sndtimeo;
         struct sk_filter        *sk_filter;
@@ -312,7 +313,7 @@ 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);
@@ -771,6 +772,7 @@ struct proto {
         int                     *sysctl_wmem;
         int                     *sysctl_rmem;
         int                     max_header;
+        bool                    no_autobind;
 
         struct kmem_cache       *slab;
         unsigned int            obj_size;
@@ -1026,15 +1028,23 @@ extern void release_sock(struct sock *sk);
                                 SINGLE_DEPTH_NESTING)
 #define bh_unlock_sock(__sk)    spin_unlock(&((__sk)->sk_lock.slock))
 
-static inline void lock_sock_bh(struct sock *sk)
+extern bool lock_sock_fast(struct sock *sk);
+/**
+ * unlock_sock_fast - complement of lock_sock_fast
+ * @sk: socket
+ * @slow: slow mode
+ *
+ * fast unlock socket for user context.
+ * If slow mode is on, we call regular release_sock()
+ */
+static inline void unlock_sock_fast(struct sock *sk, bool slow)
 {
-        spin_lock_bh(&sk->sk_lock.slock);
+        if (slow)
+                release_sock(sk);
+        else
+                spin_unlock_bh(&sk->sk_lock.slock);
 }
 
-static inline void unlock_sock_bh(struct sock *sk)
-{
-        spin_unlock_bh(&sk->sk_lock.slock);
-}
 
 extern struct sock              *sk_alloc(struct net *net, int family,
                                           gfp_t priority,
@@ -1074,6 +1084,14 @@ 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.
@@ -1208,12 +1226,7 @@ static inline void sk_tx_queue_clear(struct sock *sk)
 
 static inline int sk_tx_queue_get(const struct sock *sk)
 {
-        return sk->sk_tx_queue_mapping;
-}
-
-static inline bool sk_tx_queue_recorded(const struct sock *sk)
-{
-        return (sk && sk->sk_tx_queue_mapping >= 0);
+        return sk ? sk->sk_tx_queue_mapping : -1;
 }
 
 static inline void sk_set_socket(struct sock *sk, struct socket *sock)
@@ -1404,7 +1417,7 @@ static inline int sk_has_allocations(const struct sock *sk)
 
 /**
  * wq_has_sleeper - check if there are any waiting processes
- * @sk: struct socket_wq
+ * @wq: struct socket_wq
  *
  * Returns true if socket_wq has waiting processes
  *
@@ -1508,20 +1521,7 @@ extern void sk_stop_timer(struct sock *sk, struct timer_list* timer);
 
 extern int sock_queue_rcv_skb(struct sock *sk, struct sk_buff *skb);
 
-static inline int sock_queue_err_skb(struct sock *sk, struct sk_buff *skb)
-{
-        /* Cast skb->rcvbuf to unsigned... It's pointless, but reduces
-           number of warnings when compiling with -W --ANK
-         */
-        if (atomic_read(&sk->sk_rmem_alloc) + skb->truesize >=
-            (unsigned)sk->sk_rcvbuf)
-                return -ENOMEM;
-        skb_set_owner_r(skb, sk);
-        skb_queue_tail(&sk->sk_error_queue, skb);
-        if (!sock_flag(sk, SOCK_DEAD))
-                sk->sk_data_ready(sk, skb->len);
-        return 0;
-}
+extern int sock_queue_err_skb(struct sock *sk, struct sk_buff *skb);
 
 /*
  *      Recover an error report and clear atomically
@@ -1708,19 +1708,13 @@ static inline void sk_eat_skb(struct sock *sk, struct sk_buff *skb, int copied_e
 static inline
 struct net *sock_net(const struct sock *sk)
 {
-#ifdef CONFIG_NET_NS
-        return sk->sk_net;
-#else
-        return &init_net;
-#endif
+        return read_pnet(&sk->sk_net);
 }
 
 static inline
 void sock_net_set(struct sock *sk, struct net *net)
 {
-#ifdef CONFIG_NET_NS
-        sk->sk_net = net;
-#endif
+        write_pnet(&sk->sk_net, net);
 }
 
 /*