struct mmu_gather *tlb = &per_cpu(mmu_gathers, smp_processor_id()); 
struct mmu_gather *tlb = &get_cpu_var(mmu_gathers); 
tlb_gather_mmu(struct mm_struct *mm, unsigned int full_mm_flush){	struct mmu_gather *tlb = &per_cpu(mmu_gathers, smp_processor_id());	tlb->mm = mm;	/* Use fast mode if only one CPU is online */	tlb->nr = num_online_cpus() > 1 ? 0U : ~0U;	tlb->fullmm = full_mm_flush;	tlb->freed = 0;	return tlb;}
4520	/local/tlutelli/issta_data/temp/c/2005_temp/2005/4520/15a23ffa2fc91cebdac44d4aee994f59d5c28dc0/tlb.h/clean/include/asm-generic/tlb.h