[NET]: Use file->private_data to get socket pointer.

Avoid touching file->f_dentry on sockets, since file->private_data
directly gives us the socket pointer.

Signed-off-by: Eric Dumazet <dada1@cosmosbay.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/net/packet/af_packet.c b/net/packet/af_packet.c
index ba997095f08f7ba3c670e0de052a694d39da6a11..8690f171c1ef28136e7e57e160e980955d6b742d 100644 (file)
--- a/net/packet/af_packet.c
+++ b/net/packet/af_packet.c
@@ -1535,8 +1535,7 @@ static unsigned int packet_poll(struct file * file, struct socket *sock,
 static void packet_mm_open(struct vm_area_struct *vma)
 {
        struct file *file = vma->vm_file;
-       struct inode *inode = file->f_dentry->d_inode;
-       struct socket * sock = SOCKET_I(inode);
+       struct socket * sock = file->private_data;
        struct sock *sk = sock->sk;
        
        if (sk)
@@ -1546,8 +1545,7 @@ static void packet_mm_open(struct vm_area_struct *vma)
 static void packet_mm_close(struct vm_area_struct *vma)
 {
        struct file *file = vma->vm_file;
-       struct inode *inode = file->f_dentry->d_inode;
-       struct socket * sock = SOCKET_I(inode);
+       struct socket * sock = file->private_data;
        struct sock *sk = sock->sk;
        
        if (sk)

diff --git a/net/socket.c b/net/socket.c
index 94fe638b4d72b3721cbda637573c7182f5535b32..e1bd5d84d7bf11acce8a2c6b73d0f5ac41809d05 100644 (file)
--- a/net/socket.c
+++ b/net/socket.c
@@ -667,7 +667,7 @@ static ssize_t sock_aio_read(struct kiocb *iocb, char __user *ubuf,
        }
        iocb->private = x;
        x->kiocb = iocb;
-       sock = SOCKET_I(iocb->ki_filp->f_dentry->d_inode); 
+       sock = iocb->ki_filp->private_data; 
 
        x->async_msg.msg_name = NULL;
        x->async_msg.msg_namelen = 0;
@@ -709,7 +709,7 @@ static ssize_t sock_aio_write(struct kiocb *iocb, const char __user *ubuf,
        }
        iocb->private = x;
        x->kiocb = iocb;
-       sock = SOCKET_I(iocb->ki_filp->f_dentry->d_inode); 
+       sock = iocb->ki_filp->private_data; 
 
        x->async_msg.msg_name = NULL;
        x->async_msg.msg_namelen = 0;
@@ -732,7 +732,7 @@ static ssize_t sock_sendpage(struct file *file, struct page *page,
        struct socket *sock;
        int flags;
 
-       sock = SOCKET_I(file->f_dentry->d_inode);
+       sock = file->private_data;
 
        flags = !(file->f_flags & O_NONBLOCK) ? 0 : MSG_DONTWAIT;
        if (more)
@@ -741,14 +741,14 @@ static ssize_t sock_sendpage(struct file *file, struct page *page,
        return sock->ops->sendpage(sock, page, offset, size, flags);
 }
 
-static int sock_readv_writev(int type, struct inode * inode,
+static int sock_readv_writev(int type,
                             struct file * file, const struct iovec * iov,
                             long count, size_t size)
 {
        struct msghdr msg;
        struct socket *sock;
 
-       sock = SOCKET_I(inode);
+       sock = file->private_data;
 
        msg.msg_name = NULL;
        msg.msg_namelen = 0;
@@ -775,7 +775,7 @@ static ssize_t sock_readv(struct file *file, const struct iovec *vector,
        int i;
         for (i = 0 ; i < count ; i++)
                 tot_len += vector[i].iov_len;
-       return sock_readv_writev(VERIFY_WRITE, file->f_dentry->d_inode,
+       return sock_readv_writev(VERIFY_WRITE,
                                 file, vector, count, tot_len);
 }
        
@@ -786,7 +786,7 @@ static ssize_t sock_writev(struct file *file, const struct iovec *vector,
        int i;
         for (i = 0 ; i < count ; i++)
                 tot_len += vector[i].iov_len;
-       return sock_readv_writev(VERIFY_READ, file->f_dentry->d_inode,
+       return sock_readv_writev(VERIFY_READ,
                                 file, vector, count, tot_len);
 }
 
@@ -840,7 +840,7 @@ static long sock_ioctl(struct file *file, unsigned cmd, unsigned long arg)
        void __user *argp = (void __user *)arg;
        int pid, err;
 
-       sock = SOCKET_I(file->f_dentry->d_inode);
+       sock = file->private_data;
        if (cmd >= SIOCDEVPRIVATE && cmd <= (SIOCDEVPRIVATE + 15)) {
                err = dev_ioctl(cmd, argp);
        } else
@@ -939,13 +939,13 @@ static unsigned int sock_poll(struct file *file, poll_table * wait)
        /*
         *      We can't return errors to poll, so it's either yes or no. 
         */
-       sock = SOCKET_I(file->f_dentry->d_inode);
+       sock = file->private_data;
        return sock->ops->poll(file, sock, wait);
 }
 
 static int sock_mmap(struct file * file, struct vm_area_struct * vma)
 {
-       struct socket *sock = SOCKET_I(file->f_dentry->d_inode);
+       struct socket *sock = file->private_data;
 
        return sock->ops->mmap(file, sock, vma);
 }
@@ -995,7 +995,7 @@ static int sock_fasync(int fd, struct file *filp, int on)
                        return -ENOMEM;
        }
 
-       sock = SOCKET_I(filp->f_dentry->d_inode);
+       sock = filp->private_data;
 
        if ((sk=sock->sk) == NULL) {
                kfree(fna);