#ifndef _ASM_X86_TLB_H#define _ASM_X86_TLB_H#define tlb_start_vma(tlb, vma) do { } while (0)#define tlb_end_vma(tlb, vma) do { } while (0)#define __tlb_remove_tlb_entry(tlb, ptep, address) do { } while (0)#define tlb_flush(tlb) flush_tlb_mm((tlb)->mm)#include<asm-generic/tlb.h>#endif