*/
struct mmu_gather {
struct mm_struct *mm;
- unsigned int freed;
unsigned int fullmm;
-
- unsigned int flushes;
- unsigned int avoided_flushes;
};
DECLARE_PER_CPU(struct mmu_gather, mmu_gathers);
static inline struct mmu_gather *
tlb_gather_mmu(struct mm_struct *mm, unsigned int full_mm_flush)
{
- int cpu = smp_processor_id();
- struct mmu_gather *tlb = &per_cpu(mmu_gathers, cpu);
+ struct mmu_gather *tlb = &get_cpu_var(mmu_gathers);
tlb->mm = mm;
- tlb->freed = 0;
tlb->fullmm = full_mm_flush;
return tlb;
static inline void
tlb_finish_mmu(struct mmu_gather *tlb, unsigned long start, unsigned long end)
{
- struct mm_struct *mm = tlb->mm;
- unsigned long freed = tlb->freed;
- int rss = get_mm_counter(mm, rss);
-
- if (rss < freed)
- freed = rss;
- add_mm_counter(mm, rss, -freed);
-
if (tlb->fullmm)
- flush_tlb_mm(mm);
+ flush_tlb_mm(tlb->mm);
/* keep the page table cache within bounds */
check_pgt_cache();
-}
-static inline unsigned int tlb_is_full_mm(struct mmu_gather *tlb)
-{
- return tlb->fullmm;
+ put_cpu_var(mmu_gathers);
}
#define tlb_remove_tlb_entry(tlb,ptep,address) do { } while (0)