[PATCH] lockdep: annotate sock_lock_init()

[powerpc.git] / net / core / sock.c

diff --git a/net/core/sock.c b/net/core/sock.c
index 5d820c3..0b4d5d2 100644 (file)
--- a/net/core/sock.c
+++ b/net/core/sock.c
@@ -92,7 +92,6 @@
  */
 
 #include <linux/capability.h>
-#include <linux/config.h>
 #include <linux/errno.h>
 #include <linux/types.h>
 #include <linux/socket.h>
@@ -130,6 +129,18 @@
 #include <net/tcp.h>
 #endif
 
+/*
+ * Each address family might have different locking rules, so we have
+ * one slock key per address family:
+ */
+struct lock_class_key af_family_keys[AF_MAX];
+
+/*
+ * sk_callback_lock locking rules are per-address-family,
+ * so split the lock classes by using a per-AF key:
+ */
+static struct lock_class_key af_callback_keys[AF_MAX];
+
 /* Take into consideration the size of the struct sk_buff overhead in the
  * determination of these values, since that is non-constant across
  * platforms.  This makes socket queueing behavior and performance
@@ -565,6 +576,13 @@ set_rcvbuf:
                        ret = -ENONET;
                        break;
 
+               case SO_PASSSEC:
+                       if (valbool)
+                               set_bit(SOCK_PASSSEC, &sock->flags);
+                       else
+                               clear_bit(SOCK_PASSSEC, &sock->flags);
+                       break;
+
                /* We implement the SO_SNDLOWAT etc to
                   not be settable (1003.1g 5.3) */
                default:
@@ -723,6 +741,10 @@ int sock_getsockopt(struct socket *sock, int level, int optname,
                        v.val = sk->sk_state == TCP_LISTEN;
                        break;
 
+               case SO_PASSSEC:
+                       v.val = test_bit(SOCK_PASSSEC, &sock->flags) ? 1 : 0;
+                       break;
+
                case SO_PEERSEC:
                        return security_socket_getpeersec_stream(sock, optval, optlen, len);
 
@@ -838,6 +860,8 @@ struct sock *sk_clone(const struct sock *sk, const gfp_t priority)
 
                rwlock_init(&newsk->sk_dst_lock);
                rwlock_init(&newsk->sk_callback_lock);
+               lockdep_set_class(&newsk->sk_callback_lock,
+                                  af_callback_keys + newsk->sk_family);
 
                newsk->sk_dst_cache     = NULL;
                newsk->sk_wmem_queued   = 0;
@@ -1412,6 +1436,8 @@ void sock_init_data(struct socket *sock, struct sock *sk)
 
        rwlock_init(&sk->sk_dst_lock);
        rwlock_init(&sk->sk_callback_lock);
+       lockdep_set_class(&sk->sk_callback_lock,
+                          af_callback_keys + sk->sk_family);
 
        sk->sk_state_change     =       sock_def_wakeup;
        sk->sk_data_ready       =       sock_def_readable;