diff options
Diffstat (limited to 'include/asm-arm26')
| -rw-r--r-- | include/asm-arm26/tlb.h | 35 |
1 files changed, 13 insertions, 22 deletions
diff --git a/include/asm-arm26/tlb.h b/include/asm-arm26/tlb.h index c7d54ca..08ddd85 100644 --- a/include/asm-arm26/tlb.h +++ b/include/asm-arm26/tlb.h @@ -10,11 +10,8 @@ */ struct mmu_gather { struct mm_struct *mm; - unsigned int freed; - unsigned int fullmm; - - unsigned int flushes; - unsigned int avoided_flushes; + unsigned int need_flush; + unsigned int fullmm; }; DECLARE_PER_CPU(struct mmu_gather, mmu_gathers); @@ -25,8 +22,8 @@ tlb_gather_mmu(struct mm_struct *mm, unsigned int full_mm_flush) struct mmu_gather *tlb = &get_cpu_var(mmu_gathers); tlb->mm = mm; - tlb->freed = 0; - tlb->fullmm = full_mm_flush; + tlb->need_flush = 0; + tlb->fullmm = full_mm_flush; return tlb; } @@ -34,20 +31,8 @@ tlb_gather_mmu(struct mm_struct *mm, unsigned int full_mm_flush) 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 (freed) { - flush_tlb_mm(mm); - tlb->flushes++; - } else { - tlb->avoided_flushes++; - } + if (tlb->need_flush) + flush_tlb_mm(tlb->mm); /* keep the page table cache within bounds */ check_pgt_cache(); @@ -65,7 +50,13 @@ tlb_finish_mmu(struct mmu_gather *tlb, unsigned long start, unsigned long end) } while (0) #define tlb_end_vma(tlb,vma) do { } while (0) -#define tlb_remove_page(tlb,page) free_page_and_swap_cache(page) +static inline void +tlb_remove_page(struct mmu_gather *tlb, struct page *page) +{ + tlb->need_flush = 1; + free_page_and_swap_cache(page); +} + #define pte_free_tlb(tlb,ptep) pte_free(ptep) #define pmd_free_tlb(tlb,pmdp) pmd_free(pmdp) |
