diff options
Diffstat (limited to 'mm/ksm.c')
| -rw-r--r-- | mm/ksm.c | 18 |
1 files changed, 12 insertions, 6 deletions
@@ -872,7 +872,8 @@ static int write_protect_page(struct vm_area_struct *vma, struct page *page, mmun_start = addr; mmun_end = addr + PAGE_SIZE; - mmu_notifier_invalidate_range_start(mm, mmun_start, mmun_end); + mmu_notifier_invalidate_range_start(mm, mmun_start, mmun_end, + MMU_KSM_WRITE_PROTECT); ptep = page_check_address(page, mm, addr, &ptl, 0); if (!ptep) @@ -904,7 +905,7 @@ static int write_protect_page(struct vm_area_struct *vma, struct page *page, if (pte_dirty(entry)) set_page_dirty(page); entry = pte_mkclean(pte_wrprotect(entry)); - set_pte_at_notify(mm, addr, ptep, entry); + set_pte_at_notify(mm, addr, ptep, entry, MMU_KSM_WRITE_PROTECT); } *orig_pte = *ptep; err = 0; @@ -912,7 +913,8 @@ static int write_protect_page(struct vm_area_struct *vma, struct page *page, out_unlock: pte_unmap_unlock(ptep, ptl); out_mn: - mmu_notifier_invalidate_range_end(mm, mmun_start, mmun_end); + mmu_notifier_invalidate_range_end(mm, mmun_start, mmun_end, + MMU_KSM_WRITE_PROTECT); out: return err; } @@ -948,7 +950,8 @@ static int replace_page(struct vm_area_struct *vma, struct page *page, mmun_start = addr; mmun_end = addr + PAGE_SIZE; - mmu_notifier_invalidate_range_start(mm, mmun_start, mmun_end); + mmu_notifier_invalidate_range_start(mm, mmun_start, mmun_end, + MMU_MIGRATE); ptep = pte_offset_map_lock(mm, pmd, addr, &ptl); if (!pte_same(*ptep, orig_pte)) { @@ -961,7 +964,9 @@ static int replace_page(struct vm_area_struct *vma, struct page *page, flush_cache_page(vma, addr, pte_pfn(*ptep)); ptep_clear_flush_notify(vma, addr, ptep); - set_pte_at_notify(mm, addr, ptep, mk_pte(kpage, vma->vm_page_prot)); + set_pte_at_notify(mm, addr, ptep, + mk_pte(kpage, vma->vm_page_prot), + MMU_MIGRATE); page_remove_rmap(page); if (!page_mapped(page)) @@ -971,7 +976,8 @@ static int replace_page(struct vm_area_struct *vma, struct page *page, pte_unmap_unlock(ptep, ptl); err = 0; out_mn: - mmu_notifier_invalidate_range_end(mm, mmun_start, mmun_end); + mmu_notifier_invalidate_range_end(mm, mmun_start, mmun_end, + MMU_MIGRATE); out: return err; } |