ssize_t sock_sendpage(struct file *file, struct page *page, int offset, size_t size, loff_t *ppos, int more)
static ssize_t sock_sendpage(struct file *file, struct page *page, int offset, size_t size, loff_t *ppos, int more)
ssize_t sock_sendpage(struct file *file, struct page *page,		      int offset, size_t size, loff_t *ppos, int more){	struct socket *sock;	int flags;	sock = SOCKET_I(file->f_dentry->d_inode);	flags = !(file->f_flags & O_NONBLOCK) ? 0 : MSG_DONTWAIT;	if (more)		flags |= MSG_MORE;	return sock->ops->sendpage(sock, page, offset, size, flags);}