1681 	unsigned long save, to_free_normal, to_free_highmem, free;  in free_unnecessary_pages()  local
1683 	save = count_data_pages();  in free_unnecessary_pages()
1684 	if (alloc_normal >= save) {  in free_unnecessary_pages()
1685 		to_free_normal = alloc_normal - save;  in free_unnecessary_pages()
1686 		save = 0;  in free_unnecessary_pages()
1689 		save -= alloc_normal;  in free_unnecessary_pages()
1691 	save += count_highmem_pages();  in free_unnecessary_pages()
1692 	if (alloc_highmem >= save) {  in free_unnecessary_pages()
1693 		to_free_highmem = alloc_highmem - save;  in free_unnecessary_pages()
1696 		save -= alloc_highmem;  in free_unnecessary_pages()
1697 		if (to_free_normal > save)  in free_unnecessary_pages()
1698 			to_free_normal -= save;  in free_unnecessary_pages()