···83838484/*8585 * TLB flushing:8686- * flush_tlb() - flushes the current mm struct TLBs8786 * flush_tlb_all() - flushes all processes TLBs8887 * flush_tlb_mm(mm) - flushes the specified mm context TLB's8988 * flush_tlb_page(vma, vmaddr) - flushes one page···9899 * only one user. At the end of the update the flush_tlb_mm and99100 * flush_tlb_range functions need to do the flush.100101 */101101-#define flush_tlb() do { } while (0)102102#define flush_tlb_all() do { } while (0)103103#define flush_tlb_page(vma, addr) do { } while (0)104104