Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/roland...

[safe/jmp/linux-2.6] / include / net / sock.h

diff --git a/include/net/sock.h b/include/net/sock.h
index 25c37e3..453c79d 100644 (file)
--- a/include/net/sock.h
+++ b/include/net/sock.h
@@ -40,6 +40,7 @@
 #ifndef _SOCK_H
 #define _SOCK_H
 
+#include <linux/kernel.h>
 #include <linux/list.h>
 #include <linux/timer.h>
 #include <linux/cache.h>
@@ -55,6 +56,7 @@
 #include <asm/atomic.h>
 #include <net/dst.h>
 #include <net/checksum.h>
+#include <net/net_namespace.h>
 
 /*
  * This structure really needs to be cleaned up.
@@ -75,10 +77,9 @@
  * between user contexts and software interrupt processing, whereas the
  * mini-semaphore synchronizes multiple users amongst themselves.
  */
-struct sock_iocb;
 typedef struct {
        spinlock_t              slock;
-       struct sock_iocb        *owner;
+       int                     owned;
        wait_queue_head_t       wq;
        /*
         * We express the mutex-alike socket_lock semantics
@@ -105,6 +106,7 @@ struct proto;
  *     @skc_refcnt: reference count
  *     @skc_hash: hash value used with various protocol lookup tables
  *     @skc_prot: protocol handlers inside a network family
+ *     @skc_net: reference to the network namespace of this socket
  *
  *     This is the minimal network layer representation of sockets, the header
  *     for struct sock and struct inet_timewait_sock.
@@ -119,6 +121,7 @@ struct sock_common {
        atomic_t                skc_refcnt;
        unsigned int            skc_hash;
        struct proto            *skc_prot;
+       struct net              *skc_net;
 };
 
 /**
@@ -195,6 +198,7 @@ struct sock {
 #define sk_refcnt              __sk_common.skc_refcnt
 #define sk_hash                        __sk_common.skc_hash
 #define sk_prot                        __sk_common.skc_prot
+#define sk_net                 __sk_common.skc_net
        unsigned char           sk_shutdown : 2,
                                sk_no_check : 2,
                                sk_userlocks : 4;
@@ -218,13 +222,13 @@ struct sock {
        atomic_t                sk_rmem_alloc;
        atomic_t                sk_wmem_alloc;
        atomic_t                sk_omem_alloc;
+       int                     sk_sndbuf;
        struct sk_buff_head     sk_receive_queue;
        struct sk_buff_head     sk_write_queue;
        struct sk_buff_head     sk_async_wait_queue;
        int                     sk_wmem_queued;
        int                     sk_forward_alloc;
        gfp_t                   sk_allocation;
-       int                     sk_sndbuf;
        int                     sk_route_caps;
        int                     sk_gso_type;
        int                     sk_rcvlowat;
@@ -481,17 +485,17 @@ static inline void sk_add_backlog(struct sock *sk, struct sk_buff *skb)
        skb->next = NULL;
 }
 
-#define sk_wait_event(__sk, __timeo, __condition)              \
-({     int rc;                                                 \
-       release_sock(__sk);                                     \
-       rc = __condition;                                       \
-       if (!rc) {                                              \
-               *(__timeo) = schedule_timeout(*(__timeo));      \
-       }                                                       \
-       lock_sock(__sk);                                        \
-       rc = __condition;                                       \
-       rc;                                                     \
-})
+#define sk_wait_event(__sk, __timeo, __condition)                      \
+       ({      int __rc;                                               \
+               release_sock(__sk);                                     \
+               __rc = __condition;                                     \
+               if (!__rc) {                                            \
+                       *(__timeo) = schedule_timeout(*(__timeo));      \
+               }                                                       \
+               lock_sock(__sk);                                        \
+               __rc = __condition;                                     \
+               __rc;                                                   \
+       })
 
 extern int sk_stream_wait_connect(struct sock *sk, long *timeo_p);
 extern int sk_stream_wait_memory(struct sock *sk, long *timeo_p);
@@ -702,7 +706,7 @@ extern int sk_stream_mem_schedule(struct sock *sk, int size, int kind);
 
 static inline int sk_stream_pages(int amt)
 {
-       return (amt + SK_STREAM_MEM_QUANTUM - 1) / SK_STREAM_MEM_QUANTUM;
+       return DIV_ROUND_UP(amt, SK_STREAM_MEM_QUANTUM);
 }
 
 static inline void sk_stream_mem_reclaim(struct sock *sk)
@@ -736,7 +740,7 @@ static inline int sk_stream_wmem_schedule(struct sock *sk, int size)
  * Since ~2.3.5 it is also exclusive sleep lock serializing
  * accesses from user process context.
  */
-#define sock_owned_by_user(sk) ((sk)->sk_lock.owner)
+#define sock_owned_by_user(sk) ((sk)->sk_lock.owned)
 
 /*
  * Macro so as to not evaluate some arguments when
@@ -747,7 +751,7 @@ static inline int sk_stream_wmem_schedule(struct sock *sk, int size)
  */
 #define sock_lock_init_class_and_name(sk, sname, skey, name, key)      \
 do {                                                                   \
-       sk->sk_lock.owner = NULL;                                       \
+       sk->sk_lock.owned = 0;                                  \
        init_waitqueue_head(&sk->sk_lock.wq);                           \
        spin_lock_init(&(sk)->sk_lock.slock);                           \
        debug_check_no_locks_freed((void *)&(sk)->sk_lock,              \
@@ -773,7 +777,7 @@ extern void FASTCALL(release_sock(struct sock *sk));
                                SINGLE_DEPTH_NESTING)
 #define bh_unlock_sock(__sk)   spin_unlock(&((__sk)->sk_lock.slock))
 
-extern struct sock             *sk_alloc(int family,
+extern struct sock             *sk_alloc(struct net *net, int family,
                                          gfp_t priority,
                                          struct proto *prot, int zero_it);
 extern void                    sk_free(struct sock *sk);
@@ -1002,6 +1006,7 @@ static inline void sock_copy(struct sock *nsk, const struct sock *osk)
 #endif
 
        memcpy(nsk, osk, osk->sk_prot->obj_size);
+       get_net(nsk->sk_net);
 #ifdef CONFIG_SECURITY_NETWORK
        nsk->sk_security = sptr;
        security_sk_clone(osk, nsk);
@@ -1361,15 +1366,6 @@ static inline void sock_valbool_flag(struct sock *sk, int bit, int valbool)
 extern __u32 sysctl_wmem_max;
 extern __u32 sysctl_rmem_max;
 
-#ifdef CONFIG_NET
-int siocdevprivate_ioctl(unsigned int fd, unsigned int cmd, unsigned long arg);
-#else
-static inline int siocdevprivate_ioctl(unsigned int fd, unsigned int cmd, unsigned long arg)
-{
-       return -ENODEV;
-}
-#endif
-
 extern void sk_init(void);
 
 #ifdef CONFIG_SYSCTL