1 files changed, 41 insertions, 10 deletions

diff --git a/include/net/sock.h b/include/net/sock.h
index 40bb90ebb2d1..03684e702d13 100644
--- a/include/net/sock.h
+++ b/include/net/sock.h
@@ -47,6 +47,7 @@
 #include <linux/lockdep.h>
 #include <linux/netdevice.h>
 #include <linux/skbuff.h>       /* struct sk_buff */
+#include <linux/mm.h>
 #include <linux/security.h>
 
 #include <linux/filter.h>
@@ -570,7 +571,7 @@ struct proto {
         int                     *sysctl_rmem;
         int                     max_header;
 
-        kmem_cache_t            *slab;
+        struct kmem_cache               *slab;
         unsigned int            obj_size;
 
         atomic_t                *orphan_count;
@@ -745,7 +746,32 @@ static inline int sk_stream_wmem_schedule(struct sock *sk, int size)
  */
 #define sock_owned_by_user(sk)  ((sk)->sk_lock.owner)
 
-extern void FASTCALL(lock_sock(struct sock *sk));
+/*
+ * Macro so as to not evaluate some arguments when
+ * lockdep is not enabled.
+ *
+ * Mark both the sk_lock and the sk_lock.slock as a
+ * per-address-family lock class.
+ */
+#define sock_lock_init_class_and_name(sk, sname, skey, name, key)       \
+do {                                                                    \
+        sk->sk_lock.owner = NULL;                                       \
+        init_waitqueue_head(&sk->sk_lock.wq);                           \
+        spin_lock_init(&(sk)->sk_lock.slock);                           \
+        debug_check_no_locks_freed((void *)&(sk)->sk_lock,              \
+                        sizeof((sk)->sk_lock));                         \
+        lockdep_set_class_and_name(&(sk)->sk_lock.slock,                \
+                        (skey), (sname));                               \
+        lockdep_init_map(&(sk)->sk_lock.dep_map, (name), (key), 0);     \
+} while (0)
+
+extern void FASTCALL(lock_sock_nested(struct sock *sk, int subclass));
+
+static inline void lock_sock(struct sock *sk)
+{
+        lock_sock_nested(sk, 0);
+}
+
 extern void FASTCALL(release_sock(struct sock *sk));
 
 /* BH context may only use the following locking interface. */
@@ -883,19 +909,23 @@ static inline int sk_filter(struct sock *sk, struct sk_buff *skb)
 }
 
 /**
- *      sk_filter_release: Release a socket filter
- *      @sk: socket
- *      @fp: filter to remove
- *
- *      Remove a filter from a socket and release its resources.
+ *      sk_filter_rcu_free: Free a socket filter
+ *      @rcu: rcu_head that contains the sk_filter to free
  */
- 
 static inline void sk_filter_rcu_free(struct rcu_head *rcu)
 {
         struct sk_filter *fp = container_of(rcu, struct sk_filter, rcu);
         kfree(fp);
 }
 
+/**
+ *      sk_filter_release: Release a socket filter
+ *      @sk: socket
+ *      @fp: filter to remove
+ *
+ *      Remove a filter from a socket and release its resources.
+ */
+
 static inline void sk_filter_release(struct sock *sk, struct sk_filter *fp)
 {
         unsigned int size = sk_filter_len(fp);
@@ -944,7 +974,8 @@ static inline void sock_put(struct sock *sk)
                 sk_free(sk);
 }
 
-extern int sk_receive_skb(struct sock *sk, struct sk_buff *skb);
+extern int sk_receive_skb(struct sock *sk, struct sk_buff *skb,
+                          const int nested);
 
 /* Detach socket from process context.
  * Announce socket dead, detach it from wait queue and inode.
@@ -1078,7 +1109,7 @@ static inline int skb_copy_to_page(struct sock *sk, char __user *from,
 {
         if (skb->ip_summed == CHECKSUM_NONE) {
                 int err = 0;
-                unsigned int csum = csum_and_copy_from_user(from,
+                __wsum csum = csum_and_copy_from_user(from,
                                                      page_address(page) + off,
                                                             copy, 0, &err);
                 if (err)