1 files changed, 5 insertions, 3 deletions

diff --git a/include/asm-i386/pgtable.h b/include/asm-i386/pgtable.h
index d62bdb029efa..628fa7747d0c 100644
--- a/include/asm-i386/pgtable.h
+++ b/include/asm-i386/pgtable.h
@@ -285,13 +285,15 @@ static inline pte_t native_local_ptep_get_and_clear(pte_t *ptep)
  */
 #define  __HAVE_ARCH_PTEP_SET_ACCESS_FLAGS
 #define ptep_set_access_flags(vma, address, ptep, entry, dirty)         \
-do {                                                                    \
-        if (dirty) {                                                    \
+({                                                                      \
+        int __changed = !pte_same(*(ptep), entry);                      \
+        if (__changed && dirty) {                                       \
                 (ptep)->pte_low = (entry).pte_low;                      \
                 pte_update_defer((vma)->vm_mm, (address), (ptep));      \
                 flush_tlb_page(vma, address);                           \
         }                                                               \
-} while (0)
+        __changed;                                                      \
+})
 
 #define __HAVE_ARCH_PTEP_TEST_AND_CLEAR_DIRTY
 #define ptep_test_and_clear_dirty(vma, addr, ptep) ({                   \