Message ID | 20130606002034.2b442e8a.akpm@linux-foundation.org (mailing list archive) |
---|---|
State | Not Applicable |
Headers | show |
diff -puN mm/huge_memory.c~mm-thp-use-the-right-function-when-updating-access-flags mm/huge_memory.c --- a/mm/huge_memory.c~mm-thp-use-the-right-function-when-updating-access-flags +++ a/mm/huge_memory.c @@ -1265,7 +1265,9 @@ struct page *follow_trans_huge_pmd(struc * young bit, instead of the current set_pmd_at. */ _pmd = pmd_mkyoung(pmd_mkdirty(*pmd)); - set_pmd_at(mm, addr & HPAGE_PMD_MASK, pmd, _pmd); + if (pmdp_set_access_flags(vma, addr & HPAGE_PMD_MASK, + pmd, _pmd, 1)) + update_mmu_cache_pmd(vma, addr, pmd); } if ((flags & FOLL_MLOCK) && (vma->vm_flags & VM_LOCKED)) { if (page->mapping && trylock_page(page)) {