diff options
Diffstat (limited to 'mm/memory.c')
-rw-r--r-- | mm/memory.c | 7 |
1 files changed, 3 insertions, 4 deletions
diff --git a/mm/memory.c b/mm/memory.c index ab3537bcfed2..adeac306610f 100644 --- a/mm/memory.c +++ b/mm/memory.c | |||
@@ -751,7 +751,7 @@ struct page *vm_normal_page(struct vm_area_struct *vma, unsigned long addr, | |||
751 | unsigned long pfn = pte_pfn(pte); | 751 | unsigned long pfn = pte_pfn(pte); |
752 | 752 | ||
753 | if (HAVE_PTE_SPECIAL) { | 753 | if (HAVE_PTE_SPECIAL) { |
754 | if (likely(!pte_special(pte) || pte_numa(pte))) | 754 | if (likely(!pte_special(pte))) |
755 | goto check_pfn; | 755 | goto check_pfn; |
756 | if (vma->vm_flags & (VM_PFNMAP | VM_MIXEDMAP)) | 756 | if (vma->vm_flags & (VM_PFNMAP | VM_MIXEDMAP)) |
757 | return NULL; | 757 | return NULL; |
@@ -777,15 +777,14 @@ struct page *vm_normal_page(struct vm_area_struct *vma, unsigned long addr, | |||
777 | } | 777 | } |
778 | } | 778 | } |
779 | 779 | ||
780 | if (is_zero_pfn(pfn)) | ||
781 | return NULL; | ||
780 | check_pfn: | 782 | check_pfn: |
781 | if (unlikely(pfn > highest_memmap_pfn)) { | 783 | if (unlikely(pfn > highest_memmap_pfn)) { |
782 | print_bad_pte(vma, addr, pte, NULL); | 784 | print_bad_pte(vma, addr, pte, NULL); |
783 | return NULL; | 785 | return NULL; |
784 | } | 786 | } |
785 | 787 | ||
786 | if (is_zero_pfn(pfn)) | ||
787 | return NULL; | ||
788 | |||
789 | /* | 788 | /* |
790 | * NOTE! We still have PageReserved() pages in the page tables. | 789 | * NOTE! We still have PageReserved() pages in the page tables. |
791 | * eg. VDSO mappings can cause them to exist. | 790 | * eg. VDSO mappings can cause them to exist. |