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-rw-r--r--arch/i386/mm/hugetlbpage.c13
-rw-r--r--mm/hugetlb.c2
2 files changed, 11 insertions, 4 deletions
diff --git a/arch/i386/mm/hugetlbpage.c b/arch/i386/mm/hugetlbpage.c
index 3b099f32b948..57c486f0e896 100644
--- a/arch/i386/mm/hugetlbpage.c
+++ b/arch/i386/mm/hugetlbpage.c
@@ -22,12 +22,21 @@ pte_t *huge_pte_alloc(struct mm_struct *mm, unsigned long addr)
22{ 22{
23 pgd_t *pgd; 23 pgd_t *pgd;
24 pud_t *pud; 24 pud_t *pud;
25 pmd_t *pmd = NULL; 25 pmd_t *pmd;
26 pte_t *pte = NULL;
26 27
27 pgd = pgd_offset(mm, addr); 28 pgd = pgd_offset(mm, addr);
28 pud = pud_alloc(mm, pgd, addr); 29 pud = pud_alloc(mm, pgd, addr);
29 pmd = pmd_alloc(mm, pud, addr); 30 pmd = pmd_alloc(mm, pud, addr);
30 return (pte_t *) pmd; 31
32 if (!pmd)
33 goto out;
34
35 pte = (pte_t *) pmd;
36 if (!pte_none(*pte) && !pte_huge(*pte))
37 hugetlb_clean_stale_pgtable(pte);
38out:
39 return pte;
31} 40}
32 41
33pte_t *huge_pte_offset(struct mm_struct *mm, unsigned long addr) 42pte_t *huge_pte_offset(struct mm_struct *mm, unsigned long addr)
diff --git a/mm/hugetlb.c b/mm/hugetlb.c
index 6bf720bc662c..901ac523a1c3 100644
--- a/mm/hugetlb.c
+++ b/mm/hugetlb.c
@@ -360,8 +360,6 @@ int hugetlb_prefault(struct address_space *mapping, struct vm_area_struct *vma)
360 ret = -ENOMEM; 360 ret = -ENOMEM;
361 goto out; 361 goto out;
362 } 362 }
363 if (! pte_none(*pte))
364 hugetlb_clean_stale_pgtable(pte);
365 363
366 idx = ((addr - vma->vm_start) >> HPAGE_SHIFT) 364 idx = ((addr - vma->vm_start) >> HPAGE_SHIFT)
367 + (vma->vm_pgoff >> (HPAGE_SHIFT - PAGE_SHIFT)); 365 + (vma->vm_pgoff >> (HPAGE_SHIFT - PAGE_SHIFT));