1 files changed, 140 insertions, 169 deletions

diff --git a/net/socket.c b/net/socket.c
index 5e8d0af3c0e7..2270b941bcc7 100644
--- a/net/socket.c
+++ b/net/socket.c
@@ -94,6 +94,7 @@
 
 #include <net/compat.h>
 #include <net/wext.h>
+#include <net/cls_cgroup.h>
 
 #include <net/sock.h>
 #include <linux/netfilter.h>
@@ -123,7 +124,7 @@ static int sock_fasync(int fd, struct file *filp, int on);
 static ssize_t sock_sendpage(struct file *file, struct page *page,
                              int offset, size_t size, loff_t *ppos, int more);
 static ssize_t sock_splice_read(struct file *file, loff_t *ppos,
-                                struct pipe_inode_info *pipe, size_t len,
+                                struct pipe_inode_info *pipe, size_t len,
                                 unsigned int flags);
 
 /*
@@ -161,7 +162,7 @@ static const struct net_proto_family *net_families[NPROTO] __read_mostly;
  *      Statistics counters of the socket lists
  */
 
-static DEFINE_PER_CPU(int, sockets_in_use) = 0;
+static DEFINE_PER_CPU(int, sockets_in_use);
 
 /*
  * Support routines.
@@ -169,15 +170,6 @@ static DEFINE_PER_CPU(int, sockets_in_use) = 0;
  * divide and look after the messy bits.
  */
 
-#define MAX_SOCK_ADDR   128             /* 108 for Unix domain -
-                                           16 for IP, 16 for IPX,
-                                           24 for IPv6,
-                                           about 80 for AX.25
-                                           must be at least one bigger than
-                                           the AF_UNIX size (see net/unix/af_unix.c
-                                           :unix_mkname()).
-                                         */
-
 /**
  *      move_addr_to_kernel     -       copy a socket address into kernel space
  *      @uaddr: Address in user space
@@ -252,9 +244,14 @@ static struct inode *sock_alloc_inode(struct super_block *sb)
         ei = kmem_cache_alloc(sock_inode_cachep, GFP_KERNEL);
         if (!ei)
                 return NULL;
-        init_waitqueue_head(&ei->socket.wait);
+        ei->socket.wq = kmalloc(sizeof(struct socket_wq), GFP_KERNEL);
+        if (!ei->socket.wq) {
+                kmem_cache_free(sock_inode_cachep, ei);
+                return NULL;
+        }
+        init_waitqueue_head(&ei->socket.wq->wait);
+        ei->socket.wq->fasync_list = NULL;
 
-        ei->socket.fasync_list = NULL;
         ei->socket.state = SS_UNCONNECTED;
         ei->socket.flags = 0;
         ei->socket.ops = NULL;
@@ -264,10 +261,21 @@ static struct inode *sock_alloc_inode(struct super_block *sb)
         return &ei->vfs_inode;
 }
 
+
+static void wq_free_rcu(struct rcu_head *head)
+{
+        struct socket_wq *wq = container_of(head, struct socket_wq, rcu);
+
+        kfree(wq);
+}
+
 static void sock_destroy_inode(struct inode *inode)
 {
-        kmem_cache_free(sock_inode_cachep,
-                        container_of(inode, struct socket_alloc, vfs_inode));
+        struct socket_alloc *ei;
+
+        ei = container_of(inode, struct socket_alloc, vfs_inode);
+        call_rcu(&ei->socket.wq->rcu, wq_free_rcu);
+        kmem_cache_free(sock_inode_cachep, ei);
 }
 
 static void init_once(void *foo)
@@ -292,9 +300,9 @@ static int init_inodecache(void)
 }
 
 static const struct super_operations sockfs_ops = {
-        .alloc_inode =  sock_alloc_inode,
-        .destroy_inode =sock_destroy_inode,
-        .statfs =       simple_statfs,
+        .alloc_inode    = sock_alloc_inode,
+        .destroy_inode  = sock_destroy_inode,
+        .statfs         = simple_statfs,
 };
 
 static int sockfs_get_sb(struct file_system_type *fs_type,
@@ -394,6 +402,7 @@ int sock_map_fd(struct socket *sock, int flags)
 
         return fd;
 }
+EXPORT_SYMBOL(sock_map_fd);
 
 static struct socket *sock_from_file(struct file *file, int *err)
 {
@@ -405,7 +414,7 @@ static struct socket *sock_from_file(struct file *file, int *err)
 }
 
 /**
- *      sockfd_lookup   -       Go from a file number to its socket slot
+ *      sockfd_lookup - Go from a file number to its socket slot
  *      @fd: file handle
  *      @err: pointer to an error code return
  *
@@ -433,6 +442,7 @@ struct socket *sockfd_lookup(int fd, int *err)
                 fput(file);
         return sock;
 }
+EXPORT_SYMBOL(sockfd_lookup);
 
 static struct socket *sockfd_lookup_light(int fd, int *err, int *fput_needed)
 {
@@ -513,7 +523,7 @@ void sock_release(struct socket *sock)
                 module_put(owner);
         }
 
-        if (sock->fasync_list)
+        if (sock->wq->fasync_list)
                 printk(KERN_ERR "sock_release: fasync list not empty!\n");
 
         percpu_sub(sockets_in_use, 1);
@@ -523,6 +533,7 @@ void sock_release(struct socket *sock)
         }
         sock->file = NULL;
 }
+EXPORT_SYMBOL(sock_release);
 
 int sock_tx_timestamp(struct msghdr *msg, struct sock *sk,
                       union skb_shared_tx *shtx)
@@ -542,6 +553,8 @@ static inline int __sock_sendmsg(struct kiocb *iocb, struct socket *sock,
         struct sock_iocb *si = kiocb_to_siocb(iocb);
         int err;
 
+        sock_update_classid(sock->sk);
+
         si->sock = sock;
         si->scm = NULL;
         si->msg = msg;
@@ -567,6 +580,7 @@ int sock_sendmsg(struct socket *sock, struct msghdr *msg, size_t size)
                 ret = wait_on_sync_kiocb(&iocb);
         return ret;
 }
+EXPORT_SYMBOL(sock_sendmsg);
 
 int kernel_sendmsg(struct socket *sock, struct msghdr *msg,
                    struct kvec *vec, size_t num, size_t size)
@@ -585,6 +599,7 @@ int kernel_sendmsg(struct socket *sock, struct msghdr *msg,
         set_fs(oldfs);
         return result;
 }
+EXPORT_SYMBOL(kernel_sendmsg);
 
 static int ktime2ts(ktime_t kt, struct timespec *ts)
 {
@@ -620,10 +635,9 @@ void __sock_recv_timestamp(struct msghdr *msg, struct sock *sk,
                         put_cmsg(msg, SOL_SOCKET, SCM_TIMESTAMP,
                                  sizeof(tv), &tv);
                 } else {
-                        struct timespec ts;
-                        skb_get_timestampns(skb, &ts);
+                        skb_get_timestampns(skb, &ts[0]);
                         put_cmsg(msg, SOL_SOCKET, SCM_TIMESTAMPNS,
-                                 sizeof(ts), &ts);
+                                 sizeof(ts[0]), &ts[0]);
                 }
         }
 
@@ -646,7 +660,6 @@ void __sock_recv_timestamp(struct msghdr *msg, struct sock *sk,
                 put_cmsg(msg, SOL_SOCKET,
                          SCM_TIMESTAMPING, sizeof(ts), &ts);
 }
-
 EXPORT_SYMBOL_GPL(__sock_recv_timestamp);
 
 inline void sock_recv_drops(struct msghdr *msg, struct sock *sk, struct sk_buff *skb)
@@ -656,19 +669,21 @@ inline void sock_recv_drops(struct msghdr *msg, struct sock *sk, struct sk_buff
                         sizeof(__u32), &skb->dropcount);
 }
 
-void sock_recv_ts_and_drops(struct msghdr *msg, struct sock *sk,
+void __sock_recv_ts_and_drops(struct msghdr *msg, struct sock *sk,
         struct sk_buff *skb)
 {
         sock_recv_timestamp(msg, sk, skb);
         sock_recv_drops(msg, sk, skb);
 }
-EXPORT_SYMBOL_GPL(sock_recv_ts_and_drops);
+EXPORT_SYMBOL_GPL(__sock_recv_ts_and_drops);
 
 static inline int __sock_recvmsg_nosec(struct kiocb *iocb, struct socket *sock,
                                        struct msghdr *msg, size_t size, int flags)
 {
         struct sock_iocb *si = kiocb_to_siocb(iocb);
 
+        sock_update_classid(sock->sk);
+
         si->sock = sock;
         si->scm = NULL;
         si->msg = msg;
@@ -700,6 +715,7 @@ int sock_recvmsg(struct socket *sock, struct msghdr *msg,
                 ret = wait_on_sync_kiocb(&iocb);
         return ret;
 }
+EXPORT_SYMBOL(sock_recvmsg);
 
 static int sock_recvmsg_nosec(struct socket *sock, struct msghdr *msg,
                               size_t size, int flags)
@@ -732,6 +748,7 @@ int kernel_recvmsg(struct socket *sock, struct msghdr *msg,
         set_fs(oldfs);
         return result;
 }
+EXPORT_SYMBOL(kernel_recvmsg);
 
 static void sock_aio_dtor(struct kiocb *iocb)
 {
@@ -754,7 +771,7 @@ static ssize_t sock_sendpage(struct file *file, struct page *page,
 }
 
 static ssize_t sock_splice_read(struct file *file, loff_t *ppos,
-                                struct pipe_inode_info *pipe, size_t len,
+                                struct pipe_inode_info *pipe, size_t len,
                                 unsigned int flags)
 {
         struct socket *sock = file->private_data;
@@ -762,6 +779,8 @@ static ssize_t sock_splice_read(struct file *file, loff_t *ppos,
         if (unlikely(!sock->ops->splice_read))
                 return -EINVAL;
 
+        sock_update_classid(sock->sk);
+
         return sock->ops->splice_read(sock, ppos, pipe, len, flags);
 }
 
@@ -865,7 +884,7 @@ static ssize_t sock_aio_write(struct kiocb *iocb, const struct iovec *iov,
  */
 
 static DEFINE_MUTEX(br_ioctl_mutex);
-static int (*br_ioctl_hook) (struct net *, unsigned int cmd, void __user *arg) = NULL;
+static int (*br_ioctl_hook) (struct net *, unsigned int cmd, void __user *arg);
 
 void brioctl_set(int (*hook) (struct net *, unsigned int, void __user *))
 {
@@ -873,7 +892,6 @@ void brioctl_set(int (*hook) (struct net *, unsigned int, void __user *))
         br_ioctl_hook = hook;
         mutex_unlock(&br_ioctl_mutex);
 }
-
 EXPORT_SYMBOL(brioctl_set);
 
 static DEFINE_MUTEX(vlan_ioctl_mutex);
@@ -885,7 +903,6 @@ void vlan_ioctl_set(int (*hook) (struct net *, void __user *))
         vlan_ioctl_hook = hook;
         mutex_unlock(&vlan_ioctl_mutex);
 }
-
 EXPORT_SYMBOL(vlan_ioctl_set);
 
 static DEFINE_MUTEX(dlci_ioctl_mutex);
@@ -897,7 +914,6 @@ void dlci_ioctl_set(int (*hook) (unsigned int, void __user *))
         dlci_ioctl_hook = hook;
         mutex_unlock(&dlci_ioctl_mutex);
 }
-
 EXPORT_SYMBOL(dlci_ioctl_set);
 
 static long sock_do_ioctl(struct net *net, struct socket *sock,
@@ -1025,6 +1041,7 @@ out_release:
         sock = NULL;
         goto out;
 }
+EXPORT_SYMBOL(sock_create_lite);
 
 /* No kernel lock held - perfect */
 static unsigned int sock_poll(struct file *file, poll_table *wait)
@@ -1068,87 +1085,44 @@ static int sock_close(struct inode *inode, struct file *filp)
  *      1. fasync_list is modified only under process context socket lock
  *         i.e. under semaphore.
  *      2. fasync_list is used under read_lock(&sk->sk_callback_lock)
- *         or under socket lock.
- *      3. fasync_list can be used from softirq context, so that
- *         modification under socket lock have to be enhanced with
- *         write_lock_bh(&sk->sk_callback_lock).
- *                                                      --ANK (990710)
+ *         or under socket lock
  */
 
 static int sock_fasync(int fd, struct file *filp, int on)
 {
-        struct fasync_struct *fa, *fna = NULL, **prev;
-        struct socket *sock;
-        struct sock *sk;
-
-        if (on) {
-                fna = kmalloc(sizeof(struct fasync_struct), GFP_KERNEL);
-                if (fna == NULL)
-                        return -ENOMEM;
-        }
-
-        sock = filp->private_data;
+        struct socket *sock = filp->private_data;
+        struct sock *sk = sock->sk;
 
-        sk = sock->sk;
-        if (sk == NULL) {
-                kfree(fna);
+        if (sk == NULL)
                 return -EINVAL;
-        }
 
         lock_sock(sk);
 
-        spin_lock(&filp->f_lock);
-        if (on)
-                filp->f_flags |= FASYNC;
-        else
-                filp->f_flags &= ~FASYNC;
-        spin_unlock(&filp->f_lock);
-
-        prev = &(sock->fasync_list);
-
-        for (fa = *prev; fa != NULL; prev = &fa->fa_next, fa = *prev)
-                if (fa->fa_file == filp)
-                        break;
-
-        if (on) {
-                if (fa != NULL) {
-                        write_lock_bh(&sk->sk_callback_lock);
-                        fa->fa_fd = fd;
-                        write_unlock_bh(&sk->sk_callback_lock);
+        fasync_helper(fd, filp, on, &sock->wq->fasync_list);
 
-                        kfree(fna);
-                        goto out;
-                }
-                fna->fa_file = filp;
-                fna->fa_fd = fd;
-                fna->magic = FASYNC_MAGIC;
-                fna->fa_next = sock->fasync_list;
-                write_lock_bh(&sk->sk_callback_lock);
-                sock->fasync_list = fna;
+        if (!sock->wq->fasync_list)
+                sock_reset_flag(sk, SOCK_FASYNC);
+        else
                 sock_set_flag(sk, SOCK_FASYNC);
-                write_unlock_bh(&sk->sk_callback_lock);
-        } else {
-                if (fa != NULL) {
-                        write_lock_bh(&sk->sk_callback_lock);
-                        *prev = fa->fa_next;
-                        if (!sock->fasync_list)
-                                sock_reset_flag(sk, SOCK_FASYNC);
-                        write_unlock_bh(&sk->sk_callback_lock);
-                        kfree(fa);
-                }
-        }
 
-out:
-        release_sock(sock->sk);
+        release_sock(sk);
         return 0;
 }
 
-/* This function may be called only under socket lock or callback_lock */
+/* This function may be called only under socket lock or callback_lock or rcu_lock */
 
 int sock_wake_async(struct socket *sock, int how, int band)
 {
-        if (!sock || !sock->fasync_list)
+        struct socket_wq *wq;
+
+        if (!sock)
+                return -1;
+        rcu_read_lock();
+        wq = rcu_dereference(sock->wq);
+        if (!wq || !wq->fasync_list) {
+                rcu_read_unlock();
                 return -1;
+        }
         switch (how) {
         case SOCK_WAKE_WAITD:
                 if (test_bit(SOCK_ASYNC_WAITDATA, &sock->flags))
@@ -1160,13 +1134,15 @@ int sock_wake_async(struct socket *sock, int how, int band)
                 /* fall through */
         case SOCK_WAKE_IO:
 call_kill:
-                __kill_fasync(sock->fasync_list, SIGIO, band);
+                kill_fasync(&wq->fasync_list, SIGIO, band);
                 break;
         case SOCK_WAKE_URG:
-                __kill_fasync(sock->fasync_list, SIGURG, band);
+                kill_fasync(&wq->fasync_list, SIGURG, band);
         }
+        rcu_read_unlock();
         return 0;
 }
+EXPORT_SYMBOL(sock_wake_async);
 
 static int __sock_create(struct net *net, int family, int type, int protocol,
                          struct socket **res, int kern)
@@ -1285,11 +1261,13 @@ int sock_create(int family, int type, int protocol, struct socket **res)
 {
         return __sock_create(current->nsproxy->net_ns, family, type, protocol, res, 0);
 }
+EXPORT_SYMBOL(sock_create);
 
 int sock_create_kern(int family, int type, int protocol, struct socket **res)
 {
         return __sock_create(&init_net, family, type, protocol, res, 1);
 }
+EXPORT_SYMBOL(sock_create_kern);
 
 SYSCALL_DEFINE3(socket, int, family, int, type, int, protocol)
 {
@@ -1494,7 +1472,8 @@ SYSCALL_DEFINE4(accept4, int, fd, struct sockaddr __user *, upeer_sockaddr,
                 goto out;
 
         err = -ENFILE;
-        if (!(newsock = sock_alloc()))
+        newsock = sock_alloc();
+        if (!newsock)
                 goto out_put;
 
         newsock->type = sock->type;
@@ -1881,8 +1860,7 @@ SYSCALL_DEFINE3(sendmsg, int, fd, struct msghdr __user *, msg, unsigned, flags)
         if (MSG_CMSG_COMPAT & flags) {
                 if (get_compat_msghdr(&msg_sys, msg_compat))
                         return -EFAULT;
-        }
-        else if (copy_from_user(&msg_sys, msg, sizeof(struct msghdr)))
+        } else if (copy_from_user(&msg_sys, msg, sizeof(struct msghdr)))
                 return -EFAULT;
 
         sock = sockfd_lookup_light(fd, &err, &fput_needed);
@@ -1984,8 +1962,7 @@ static int __sys_recvmsg(struct socket *sock, struct msghdr __user *msg,
         if (MSG_CMSG_COMPAT & flags) {
                 if (get_compat_msghdr(msg_sys, msg_compat))
                         return -EFAULT;
-        }
-        else if (copy_from_user(msg_sys, msg, sizeof(struct msghdr)))
+        } else if (copy_from_user(msg_sys, msg, sizeof(struct msghdr)))
                 return -EFAULT;
 
         err = -EMSGSIZE;
@@ -2211,10 +2188,10 @@ SYSCALL_DEFINE5(recvmmsg, int, fd, struct mmsghdr __user *, mmsg,
 /* Argument list sizes for sys_socketcall */
 #define AL(x) ((x) * sizeof(unsigned long))
 static const unsigned char nargs[20] = {
-        AL(0),AL(3),AL(3),AL(3),AL(2),AL(3),
-        AL(3),AL(3),AL(4),AL(4),AL(4),AL(6),
-        AL(6),AL(2),AL(5),AL(5),AL(3),AL(3),
-        AL(4),AL(5)
+        AL(0), AL(3), AL(3), AL(3), AL(2), AL(3),
+        AL(3), AL(3), AL(4), AL(4), AL(4), AL(6),
+        AL(6), AL(2), AL(5), AL(5), AL(3), AL(3),
+        AL(4), AL(5)
 };
 
 #undef AL
@@ -2360,6 +2337,7 @@ int sock_register(const struct net_proto_family *ops)
         printk(KERN_INFO "NET: Registered protocol family %d\n", ops->family);
         return err;
 }
+EXPORT_SYMBOL(sock_register);
 
 /**
  *      sock_unregister - remove a protocol handler
@@ -2386,6 +2364,7 @@ void sock_unregister(int family)
 
         printk(KERN_INFO "NET: Unregistered protocol family %d\n", family);
 }
+EXPORT_SYMBOL(sock_unregister);
 
 static int __init sock_init(void)
 {
@@ -2415,6 +2394,10 @@ static int __init sock_init(void)
         netfilter_init();
 #endif
 
+#ifdef CONFIG_NETWORK_PHY_TIMESTAMPING
+        skb_timestamping_init();
+#endif
+
         return 0;
 }
 
@@ -2510,13 +2493,13 @@ static int dev_ifconf(struct net *net, struct compat_ifconf __user *uifc32)
                 ifc.ifc_req = NULL;
                 uifc = compat_alloc_user_space(sizeof(struct ifconf));
         } else {
-                size_t len =((ifc32.ifc_len / sizeof (struct compat_ifreq)) + 1) *
-                        sizeof (struct ifreq);
+                size_t len = ((ifc32.ifc_len / sizeof(struct compat_ifreq)) + 1) *
+                        sizeof(struct ifreq);
                 uifc = compat_alloc_user_space(sizeof(struct ifconf) + len);
                 ifc.ifc_len = len;
                 ifr = ifc.ifc_req = (void __user *)(uifc + 1);
                 ifr32 = compat_ptr(ifc32.ifcbuf);
-                for (i = 0; i < ifc32.ifc_len; i += sizeof (struct compat_ifreq)) {
+                for (i = 0; i < ifc32.ifc_len; i += sizeof(struct compat_ifreq)) {
                         if (copy_in_user(ifr, ifr32, sizeof(struct compat_ifreq)))
                                 return -EFAULT;
                         ifr++;
@@ -2536,9 +2519,9 @@ static int dev_ifconf(struct net *net, struct compat_ifconf __user *uifc32)
         ifr = ifc.ifc_req;
         ifr32 = compat_ptr(ifc32.ifcbuf);
         for (i = 0, j = 0;
-             i + sizeof (struct compat_ifreq) <= ifc32.ifc_len && j < ifc.ifc_len;
-             i += sizeof (struct compat_ifreq), j += sizeof (struct ifreq)) {
-                if (copy_in_user(ifr32, ifr, sizeof (struct compat_ifreq)))
+             i + sizeof(struct compat_ifreq) <= ifc32.ifc_len && j < ifc.ifc_len;
+             i += sizeof(struct compat_ifreq), j += sizeof(struct ifreq)) {
+                if (copy_in_user(ifr32, ifr, sizeof(struct compat_ifreq)))
                         return -EFAULT;
                 ifr32++;
                 ifr++;
@@ -2587,7 +2570,7 @@ static int compat_siocwandev(struct net *net, struct compat_ifreq __user *uifr32
         compat_uptr_t uptr32;
         struct ifreq __user *uifr;
 
-        uifr = compat_alloc_user_space(sizeof (*uifr));
+        uifr = compat_alloc_user_space(sizeof(*uifr));
         if (copy_in_user(uifr, uifr32, sizeof(struct compat_ifreq)))
                 return -EFAULT;
 
@@ -2621,9 +2604,9 @@ static int bond_ioctl(struct net *net, unsigned int cmd,
                         return -EFAULT;
 
                 old_fs = get_fs();
-                set_fs (KERNEL_DS);
+                set_fs(KERNEL_DS);
                 err = dev_ioctl(net, cmd, &kifr);
-                set_fs (old_fs);
+                set_fs(old_fs);
 
                 return err;
         case SIOCBONDSLAVEINFOQUERY:
@@ -2642,7 +2625,7 @@ static int bond_ioctl(struct net *net, unsigned int cmd,
                 return dev_ioctl(net, cmd, uifr);
         default:
                 return -EINVAL;
-        };
+        }
 }
 
 static int siocdevprivate_ioctl(struct net *net, unsigned int cmd,
@@ -2730,9 +2713,9 @@ static int compat_sioc_ifmap(struct net *net, unsigned int cmd,
                 return -EFAULT;
 
         old_fs = get_fs();
-        set_fs (KERNEL_DS);
+        set_fs(KERNEL_DS);
         err = dev_ioctl(net, cmd, (void __user *)&ifr);
-        set_fs (old_fs);
+        set_fs(old_fs);
 
         if (cmd == SIOCGIFMAP && !err) {
                 err = copy_to_user(uifr32, &ifr, sizeof(ifr.ifr_name));
@@ -2754,7 +2737,7 @@ static int compat_siocshwtstamp(struct net *net, struct compat_ifreq __user *uif
         compat_uptr_t uptr32;
         struct ifreq __user *uifr;
 
-        uifr = compat_alloc_user_space(sizeof (*uifr));
+        uifr = compat_alloc_user_space(sizeof(*uifr));
         if (copy_in_user(uifr, uifr32, sizeof(struct compat_ifreq)))
                 return -EFAULT;
 
@@ -2770,20 +2753,20 @@ static int compat_siocshwtstamp(struct net *net, struct compat_ifreq __user *uif
 }
 
 struct rtentry32 {
-        u32             rt_pad1;
+        u32             rt_pad1;
         struct sockaddr rt_dst;         /* target address               */
         struct sockaddr rt_gateway;     /* gateway addr (RTF_GATEWAY)   */
         struct sockaddr rt_genmask;     /* target network mask (IP)     */
-        unsigned short  rt_flags;
-        short           rt_pad2;
-        u32             rt_pad3;
-        unsigned char   rt_tos;
-        unsigned char   rt_class;
-        short           rt_pad4;
-        short           rt_metric;      /* +1 for binary compatibility! */
+        unsigned short  rt_flags;
+        short           rt_pad2;
+        u32             rt_pad3;
+        unsigned char   rt_tos;
+        unsigned char   rt_class;
+        short           rt_pad4;
+        short           rt_metric;      /* +1 for binary compatibility! */
         /* char * */ u32 rt_dev;        /* forcing the device at add    */
-        u32             rt_mtu;         /* per route MTU/Window         */
-        u32             rt_window;      /* Window clamping              */
+        u32             rt_mtu;         /* per route MTU/Window         */
+        u32             rt_window;      /* Window clamping              */
         unsigned short  rt_irtt;        /* Initial RTT                  */
 };
 
@@ -2813,29 +2796,29 @@ static int routing_ioctl(struct net *net, struct socket *sock,
 
         if (sock && sock->sk && sock->sk->sk_family == AF_INET6) { /* ipv6 */
                 struct in6_rtmsg32 __user *ur6 = argp;
-                ret = copy_from_user (&r6.rtmsg_dst, &(ur6->rtmsg_dst),
+                ret = copy_from_user(&r6.rtmsg_dst, &(ur6->rtmsg_dst),
                         3 * sizeof(struct in6_addr));
-                ret |= __get_user (r6.rtmsg_type, &(ur6->rtmsg_type));
-                ret |= __get_user (r6.rtmsg_dst_len, &(ur6->rtmsg_dst_len));
-                ret |= __get_user (r6.rtmsg_src_len, &(ur6->rtmsg_src_len));
-                ret |= __get_user (r6.rtmsg_metric, &(ur6->rtmsg_metric));
-                ret |= __get_user (r6.rtmsg_info, &(ur6->rtmsg_info));
-                ret |= __get_user (r6.rtmsg_flags, &(ur6->rtmsg_flags));
-                ret |= __get_user (r6.rtmsg_ifindex, &(ur6->rtmsg_ifindex));
+                ret |= __get_user(r6.rtmsg_type, &(ur6->rtmsg_type));
+                ret |= __get_user(r6.rtmsg_dst_len, &(ur6->rtmsg_dst_len));
+                ret |= __get_user(r6.rtmsg_src_len, &(ur6->rtmsg_src_len));
+                ret |= __get_user(r6.rtmsg_metric, &(ur6->rtmsg_metric));
+                ret |= __get_user(r6.rtmsg_info, &(ur6->rtmsg_info));
+                ret |= __get_user(r6.rtmsg_flags, &(ur6->rtmsg_flags));
+                ret |= __get_user(r6.rtmsg_ifindex, &(ur6->rtmsg_ifindex));
 
                 r = (void *) &r6;
         } else { /* ipv4 */
                 struct rtentry32 __user *ur4 = argp;
-                ret = copy_from_user (&r4.rt_dst, &(ur4->rt_dst),
+                ret = copy_from_user(&r4.rt_dst, &(ur4->rt_dst),
                                         3 * sizeof(struct sockaddr));
-                ret |= __get_user (r4.rt_flags, &(ur4->rt_flags));
-                ret |= __get_user (r4.rt_metric, &(ur4->rt_metric));
-                ret |= __get_user (r4.rt_mtu, &(ur4->rt_mtu));
-                ret |= __get_user (r4.rt_window, &(ur4->rt_window));
-                ret |= __get_user (r4.rt_irtt, &(ur4->rt_irtt));
-                ret |= __get_user (rtdev, &(ur4->rt_dev));
+                ret |= __get_user(r4.rt_flags, &(ur4->rt_flags));
+                ret |= __get_user(r4.rt_metric, &(ur4->rt_metric));
+                ret |= __get_user(r4.rt_mtu, &(ur4->rt_mtu));
+                ret |= __get_user(r4.rt_window, &(ur4->rt_window));
+                ret |= __get_user(r4.rt_irtt, &(ur4->rt_irtt));
+                ret |= __get_user(rtdev, &(ur4->rt_dev));
                 if (rtdev) {
-                        ret |= copy_from_user (devname, compat_ptr(rtdev), 15);
+                        ret |= copy_from_user(devname, compat_ptr(rtdev), 15);
                         r4.rt_dev = devname; devname[15] = 0;
                 } else
                         r4.rt_dev = NULL;
@@ -2848,9 +2831,9 @@ static int routing_ioctl(struct net *net, struct socket *sock,
                 goto out;
         }
 
-        set_fs (KERNEL_DS);
+        set_fs(KERNEL_DS);
         ret = sock_do_ioctl(net, sock, cmd, (unsigned long) r);
-        set_fs (old_fs);
+        set_fs(old_fs);
 
 out:
         return ret;
@@ -3013,11 +2996,13 @@ int kernel_bind(struct socket *sock, struct sockaddr *addr, int addrlen)
 {
         return sock->ops->bind(sock, addr, addrlen);
 }
+EXPORT_SYMBOL(kernel_bind);
 
 int kernel_listen(struct socket *sock, int backlog)
 {
         return sock->ops->listen(sock, backlog);
 }
+EXPORT_SYMBOL(kernel_listen);
 
 int kernel_accept(struct socket *sock, struct socket **newsock, int flags)
 {
@@ -3042,24 +3027,28 @@ int kernel_accept(struct socket *sock, struct socket **newsock, int flags)
 done:
         return err;
 }
+EXPORT_SYMBOL(kernel_accept);
 
 int kernel_connect(struct socket *sock, struct sockaddr *addr, int addrlen,
                    int flags)
 {
         return sock->ops->connect(sock, addr, addrlen, flags);
 }
+EXPORT_SYMBOL(kernel_connect);
 
 int kernel_getsockname(struct socket *sock, struct sockaddr *addr,
                          int *addrlen)
 {
         return sock->ops->getname(sock, addr, addrlen, 0);
 }
+EXPORT_SYMBOL(kernel_getsockname);
 
 int kernel_getpeername(struct socket *sock, struct sockaddr *addr,
                          int *addrlen)
 {
         return sock->ops->getname(sock, addr, addrlen, 1);
 }
+EXPORT_SYMBOL(kernel_getpeername);
 
 int kernel_getsockopt(struct socket *sock, int level, int optname,
                         char *optval, int *optlen)
@@ -3076,6 +3065,7 @@ int kernel_getsockopt(struct socket *sock, int level, int optname,
         set_fs(oldfs);
         return err;
 }
+EXPORT_SYMBOL(kernel_getsockopt);
 
 int kernel_setsockopt(struct socket *sock, int level, int optname,
                         char *optval, unsigned int optlen)
@@ -3092,15 +3082,19 @@ int kernel_setsockopt(struct socket *sock, int level, int optname,
         set_fs(oldfs);
         return err;
 }
+EXPORT_SYMBOL(kernel_setsockopt);
 
 int kernel_sendpage(struct socket *sock, struct page *page, int offset,
                     size_t size, int flags)
 {
+        sock_update_classid(sock->sk);
+
         if (sock->ops->sendpage)
                 return sock->ops->sendpage(sock, page, offset, size, flags);
 
         return sock_no_sendpage(sock, page, offset, size, flags);
 }
+EXPORT_SYMBOL(kernel_sendpage);
 
 int kernel_sock_ioctl(struct socket *sock, int cmd, unsigned long arg)
 {
@@ -3113,33 +3107,10 @@ int kernel_sock_ioctl(struct socket *sock, int cmd, unsigned long arg)
 
         return err;
 }
+EXPORT_SYMBOL(kernel_sock_ioctl);
 
 int kernel_sock_shutdown(struct socket *sock, enum sock_shutdown_cmd how)
 {
         return sock->ops->shutdown(sock, how);
 }
-
-EXPORT_SYMBOL(sock_create);
-EXPORT_SYMBOL(sock_create_kern);
-EXPORT_SYMBOL(sock_create_lite);
-EXPORT_SYMBOL(sock_map_fd);
-EXPORT_SYMBOL(sock_recvmsg);
-EXPORT_SYMBOL(sock_register);
-EXPORT_SYMBOL(sock_release);
-EXPORT_SYMBOL(sock_sendmsg);
-EXPORT_SYMBOL(sock_unregister);
-EXPORT_SYMBOL(sock_wake_async);
-EXPORT_SYMBOL(sockfd_lookup);
-EXPORT_SYMBOL(kernel_sendmsg);
-EXPORT_SYMBOL(kernel_recvmsg);
-EXPORT_SYMBOL(kernel_bind);
-EXPORT_SYMBOL(kernel_listen);
-EXPORT_SYMBOL(kernel_accept);
-EXPORT_SYMBOL(kernel_connect);
-EXPORT_SYMBOL(kernel_getsockname);
-EXPORT_SYMBOL(kernel_getpeername);
-EXPORT_SYMBOL(kernel_getsockopt);
-EXPORT_SYMBOL(kernel_setsockopt);
-EXPORT_SYMBOL(kernel_sendpage);
-EXPORT_SYMBOL(kernel_sock_ioctl);
 EXPORT_SYMBOL(kernel_sock_shutdown);