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-rw-r--r--mm/madvise.c10
1 files changed, 5 insertions, 5 deletions
diff --git a/mm/madvise.c b/mm/madvise.c
index 0316bbc6441b2b..e55108d4e4b2c1 100644
--- a/mm/madvise.c
+++ b/mm/madvise.c
@@ -195,7 +195,6 @@ success:
static int swapin_walk_pmd_entry(pmd_t *pmd, unsigned long start,
unsigned long end, struct mm_walk *walk)
{
- pte_t *orig_pte;
struct vm_area_struct *vma = walk->private;
unsigned long index;
struct swap_iocb *splug = NULL;
@@ -208,12 +207,13 @@ static int swapin_walk_pmd_entry(pmd_t *pmd, unsigned long start,
swp_entry_t entry;
struct page *page;
spinlock_t *ptl;
+ pte_t *ptep;
- orig_pte = pte_offset_map_lock(vma->vm_mm, pmd, start, &ptl);
- pte = *(orig_pte + ((index - start) / PAGE_SIZE));
- pte_unmap_unlock(orig_pte, ptl);
+ ptep = pte_offset_map_lock(vma->vm_mm, pmd, index, &ptl);
+ pte = *ptep;
+ pte_unmap_unlock(ptep, ptl);
- if (pte_present(pte) || pte_none(pte))
+ if (!is_swap_pte(pte))
continue;
entry = pte_to_swp_entry(pte);
if (unlikely(non_swap_entry(entry)))