1 files changed, 22 insertions, 0 deletions

diff --git a/mm/huge_memory.c b/mm/huge_memory.c
index ea5fb93a53a9..5f902e20e8c0 100644
--- a/mm/huge_memory.c
+++ b/mm/huge_memory.c
@@ -784,6 +784,28 @@ out:
         return ret;
 }
 
+void huge_pmd_set_accessed(struct mm_struct *mm,
+                           struct vm_area_struct *vma,
+                           unsigned long address,
+                           pmd_t *pmd, pmd_t orig_pmd,
+                           int dirty)
+{
+        pmd_t entry;
+        unsigned long haddr;
+
+        spin_lock(&mm->page_table_lock);
+        if (unlikely(!pmd_same(*pmd, orig_pmd)))
+                goto unlock;
+
+        entry = pmd_mkyoung(orig_pmd);
+        haddr = address & HPAGE_PMD_MASK;
+        if (pmdp_set_access_flags(vma, haddr, pmd, entry, dirty))
+                update_mmu_cache_pmd(vma, address, pmd);
+
+unlock:
+        spin_unlock(&mm->page_table_lock);
+}
+
 static int do_huge_pmd_wp_page_fallback(struct mm_struct *mm,
                                         struct vm_area_struct *vma,
                                         unsigned long address,