Merge tag 'v2.6.37' of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6

[mv-sheeva.git] / include / net / sock.h

diff --git a/include/net/sock.h b/include/net/sock.h
index adab9dc5818355c603a699101c4787c99434eb12..7d3f7ce239b5b831c66b20b7df61e593384604b2 100644 (file)
--- a/include/net/sock.h
+++ b/include/net/sock.h
@@ -301,7 +301,7 @@ struct sock {
        const struct cred       *sk_peer_cred;
        long                    sk_rcvtimeo;
        long                    sk_sndtimeo;
-       struct sk_filter        *sk_filter;
+       struct sk_filter __rcu  *sk_filter;
        void                    *sk_protinfo;
        struct timer_list       sk_timer;
        ktime_t                 sk_stamp;
@@ -754,6 +754,7 @@ struct proto {
        void                    (*unhash)(struct sock *sk);
        void                    (*rehash)(struct sock *sk);
        int                     (*get_port)(struct sock *sk, unsigned short snum);
+       void                    (*clear_sk)(struct sock *sk, int size);
 
        /* Keeping track of sockets in use */
 #ifdef CONFIG_PROC_FS
@@ -762,7 +763,7 @@ struct proto {
 
        /* Memory pressure */
        void                    (*enter_memory_pressure)(struct sock *sk);
-       atomic_t                *memory_allocated;      /* Current allocated memory. */
+       atomic_long_t           *memory_allocated;      /* Current allocated memory. */
        struct percpu_counter   *sockets_allocated;     /* Current number of sockets. */
        /*
         * Pressure flag: try to collapse.
@@ -771,7 +772,7 @@ struct proto {
         * is strict, actions are advisory and have some latency.
         */
        int                     *memory_pressure;
-       int                     *sysctl_mem;
+       long                    *sysctl_mem;
        int                     *sysctl_wmem;
        int                     *sysctl_rmem;
        int                     max_header;
@@ -852,6 +853,8 @@ static inline void __sk_prot_rehash(struct sock *sk)
        sk->sk_prot->hash(sk);
 }
 
+void sk_prot_clear_portaddr_nulls(struct sock *sk, int size);
+
 /* About 10 seconds */
 #define SOCK_DESTROY_TIME (10*HZ)
 
@@ -1155,6 +1158,8 @@ extern void sk_common_release(struct sock *sk);
 /* Initialise core socket variables */
 extern void sock_init_data(struct socket *sock, struct sock *sk);
 
+extern void sk_filter_release_rcu(struct rcu_head *rcu);
+
 /**
  *     sk_filter_release - release a socket filter
  *     @fp: filter to remove
@@ -1165,7 +1170,7 @@ extern void sock_init_data(struct socket *sock, struct sock *sk);
 static inline void sk_filter_release(struct sk_filter *fp)
 {
        if (atomic_dec_and_test(&fp->refcnt))
-               kfree(fp);
+               call_rcu_bh(&fp->rcu, sk_filter_release_rcu);
 }
 
 static inline void sk_filter_uncharge(struct sock *sk, struct sk_filter *fp)
@@ -1558,7 +1563,11 @@ static inline void sk_wake_async(struct sock *sk, int how, int band)
 }
 
 #define SOCK_MIN_SNDBUF 2048
-#define SOCK_MIN_RCVBUF 256
+/*
+ * Since sk_rmem_alloc sums skb->truesize, even a small frame might need
+ * sizeof(sk_buff) + MTU + padding, unless net driver perform copybreak
+ */
+#define SOCK_MIN_RCVBUF (2048 + sizeof(struct sk_buff))
 
 static inline void sk_stream_moderate_sndbuf(struct sock *sk)
 {
@@ -1670,17 +1679,13 @@ static inline void sock_recv_ts_and_drops(struct msghdr *msg, struct sock *sk,
 
 /**
  * sock_tx_timestamp - checks whether the outgoing packet is to be time stamped
- * @msg:       outgoing packet
  * @sk:                socket sending this packet
- * @shtx:      filled with instructions for time stamping
+ * @tx_flags:  filled with instructions for time stamping
  *
  * Currently only depends on SOCK_TIMESTAMPING* flags. Returns error code if
  * parameters are invalid.
  */
-extern int sock_tx_timestamp(struct msghdr *msg,
-                            struct sock *sk,
-                            union skb_shared_tx *shtx);
-
+extern int sock_tx_timestamp(struct sock *sk, __u8 *tx_flags);
 
 /**
  * sk_eat_skb - Release a skb if it is no longer needed