1599 	unsigned long save, to_free_normal, to_free_highmem, free;  in free_unnecessary_pages()  local
1601 	save = count_data_pages();  in free_unnecessary_pages()
1602 	if (alloc_normal >= save) {  in free_unnecessary_pages()
1603 		to_free_normal = alloc_normal - save;  in free_unnecessary_pages()
1604 		save = 0;  in free_unnecessary_pages()
1607 		save -= alloc_normal;  in free_unnecessary_pages()
1609 	save += count_highmem_pages();  in free_unnecessary_pages()
1610 	if (alloc_highmem >= save) {  in free_unnecessary_pages()
1611 		to_free_highmem = alloc_highmem - save;  in free_unnecessary_pages()
1614 		save -= alloc_highmem;  in free_unnecessary_pages()
1615 		if (to_free_normal > save)  in free_unnecessary_pages()
1616 			to_free_normal -= save;  in free_unnecessary_pages()