file_ref_get
if (file_ref_get(&dmabuf->file->f_ref)) {
if (file_ref_get(&dmabuf->file->f_ref)) {
return file_ref_get(&dmabuf->file->f_ref);
if (!file_ref_get(&file->f_ref))
if (unlikely(!file_ref_get(&file->f_ref)))
if (unlikely(!file_ref_get(&file->f_ref)))