get_file_active
fp = get_file_active(&cdev->fp);
file = get_file_active(&i915->gem.mmap_singleton);
if (!get_file_active(&priv->dmabuf->file))
if (!get_file_active(&priv->dmabuf->file))
EXPORT_SYMBOL_GPL(get_file_active);
struct file *get_file_active(struct file **f);
return get_file_active(&slot->gmem.file);