diff --git a/fs/proc/task_mmu.c b/fs/proc/task_mmu.c
index 9330da26e74af86075b32a02bfdfef77d489d20b..a9b3d691a2dbc5d8d3bbf5f439dc339729c72bb1 100644
--- a/fs/proc/task_mmu.c
+++ b/fs/proc/task_mmu.c
@@ -709,7 +709,9 @@ static int smaps_hugetlb_range(pte_t *pte, unsigned long hmask,
 	struct mem_size_stats *mss = walk->private;
 	struct vm_area_struct *vma = walk->vma;
 	struct page *page = NULL;
+	spinlock_t *ptl;
 
+	ptl = huge_pte_lock(hstate_vma(vma), walk->mm, pte);
 	if (pte_present(*pte)) {
 		page = vm_normal_page(vma, addr, *pte);
 	} else if (is_swap_pte(*pte)) {
@@ -726,6 +728,7 @@ static int smaps_hugetlb_range(pte_t *pte, unsigned long hmask,
 		else
 			mss->private_hugetlb += huge_page_size(hstate_vma(vma));
 	}
+	spin_unlock(ptl);
 	return 0;
 }
 #endif /* HUGETLB_PAGE */