1 files changed, 3 insertions, 9 deletions

diff --git a/mm/msync.c b/mm/msync.c
index b3f4caf3010b..1b5b6f662dcf 100644
--- a/mm/msync.c
+++ b/mm/msync.c
@@ -27,7 +27,6 @@ static void msync_pte_range(struct vm_area_struct *vma, pmd_t *pmd,
 again:
         pte = pte_offset_map_lock(vma->vm_mm, pmd, addr, &ptl);
         do {
-                unsigned long pfn;
                 struct page *page;
 
                 if (progress >= 64) {
@@ -40,13 +39,9 @@ again:
                         continue;
                 if (!pte_maybe_dirty(*pte))
                         continue;
-                pfn = pte_pfn(*pte);
-                if (unlikely(!pfn_valid(pfn))) {
-                        print_bad_pte(vma, *pte, addr);
+                page = vm_normal_page(vma, addr, *pte);
+                if (!page)
                         continue;
-                }
-                page = pfn_to_page(pfn);
-
                 if (ptep_clear_flush_dirty(vma, addr, pte) ||
                     page_test_and_clear_dirty(page))
                         set_page_dirty(page);
@@ -97,9 +92,8 @@ static void msync_page_range(struct vm_area_struct *vma,
         /* For hugepages we can't go walking the page table normally,
          * but that's ok, hugetlbfs is memory based, so we don't need
          * to do anything more on an msync().
-         * Can't do anything with VM_UNPAGED regions either.
          */
-        if (vma->vm_flags & (VM_HUGETLB|VM_UNPAGED))
+        if (vma->vm_flags & VM_HUGETLB)
                 return;
 
         BUG_ON(addr >= end);