/* Calls upon relay_mmap_buf() to map the file into user space.  */
static int relay_file_mmap(struct file *filp, struct vm_area_struct *vma)
/* Calls upon relay_mmap_buf() to map the file into user space.  */
static int relay_file_mmap(struct file *filp, struct vm_area_struct *vma)
{
	struct rchan_buf *buf = filp->private_data;
	return relay_mmap_buf(buf, vma);
}