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-rw-r--r--mm/memory.c5
1 files changed, 2 insertions, 3 deletions
diff --git a/mm/memory.c b/mm/memory.c
index ad0ea1af1f44..7c521a6ec7c6 100644
--- a/mm/memory.c
+++ b/mm/memory.c
@@ -3961,6 +3961,7 @@ static int __handle_mm_fault(struct vm_area_struct *vma, unsigned long address,
3961 .pgoff = linear_page_index(vma, address), 3961 .pgoff = linear_page_index(vma, address),
3962 .gfp_mask = __get_fault_gfp_mask(vma), 3962 .gfp_mask = __get_fault_gfp_mask(vma),
3963 }; 3963 };
3964 unsigned int dirty = flags & FAULT_FLAG_WRITE;
3964 struct mm_struct *mm = vma->vm_mm; 3965 struct mm_struct *mm = vma->vm_mm;
3965 pgd_t *pgd; 3966 pgd_t *pgd;
3966 p4d_t *p4d; 3967 p4d_t *p4d;
@@ -3983,7 +3984,6 @@ static int __handle_mm_fault(struct vm_area_struct *vma, unsigned long address,
3983 3984
3984 barrier(); 3985 barrier();
3985 if (pud_trans_huge(orig_pud) || pud_devmap(orig_pud)) { 3986 if (pud_trans_huge(orig_pud) || pud_devmap(orig_pud)) {
3986 unsigned int dirty = flags & FAULT_FLAG_WRITE;
3987 3987
3988 /* NUMA case for anonymous PUDs would go here */ 3988 /* NUMA case for anonymous PUDs would go here */
3989 3989
@@ -4020,8 +4020,7 @@ static int __handle_mm_fault(struct vm_area_struct *vma, unsigned long address,
4020 if (pmd_protnone(orig_pmd) && vma_is_accessible(vma)) 4020 if (pmd_protnone(orig_pmd) && vma_is_accessible(vma))
4021 return do_huge_pmd_numa_page(&vmf, orig_pmd); 4021 return do_huge_pmd_numa_page(&vmf, orig_pmd);
4022 4022
4023 if ((vmf.flags & FAULT_FLAG_WRITE) && 4023 if (dirty && !pmd_write(orig_pmd)) {
4024 !pmd_write(orig_pmd)) {
4025 ret = wp_huge_pmd(&vmf, orig_pmd); 4024 ret = wp_huge_pmd(&vmf, orig_pmd);
4026 if (!(ret & VM_FAULT_FALLBACK)) 4025 if (!(ret & VM_FAULT_FALLBACK))
4027 return ret; 4026 return ret;