1 files changed, 6 insertions, 2 deletions

diff --git a/mm/rmap.c b/mm/rmap.c
index 83325b80142b..b2e29acd7e3d 100644
--- a/mm/rmap.c
+++ b/mm/rmap.c
@@ -1405,8 +1405,12 @@ static int try_to_unmap_cluster(unsigned long cursor, unsigned int *mapcount,
                 pteval = ptep_clear_flush(vma, address, pte);
 
                 /* If nonlinear, store the file page offset in the pte. */
-                if (page->index != linear_page_index(vma, address))
-                        set_pte_at(mm, address, pte, pgoff_to_pte(page->index));
+                if (page->index != linear_page_index(vma, address)) {
+                        pte_t ptfile = pgoff_to_pte(page->index);
+                        if (pte_soft_dirty(pteval))
+                                pte_file_mksoft_dirty(ptfile);
+                        set_pte_at(mm, address, pte, ptfile);
+                }
 
                 /* Move the dirty bit to the physical page now the pte is gone. */
                 if (pte_dirty(pteval))