diff --git a/mm/internal.h b/mm/internal.h
index 78f25d6..4dc93e2 100644
--- a/mm/internal.h
+++ b/mm/internal.h
@@ -201,12 +201,7 @@
  * If called for a page that is still mapped by mlocked vmas, all we do
  * is revert to lazy LRU behaviour -- semantics are not broken.
  */
-extern void __clear_page_mlock(struct page *page);
-static inline void clear_page_mlock(struct page *page)
-{
-	if (unlikely(TestClearPageMlocked(page)))
-		__clear_page_mlock(page);
-}
+extern void clear_page_mlock(struct page *page);
 
 /*
  * mlock_migrate_page - called only from migrate_page_copy() to
diff --git a/mm/memory.c b/mm/memory.c
index d205e43..5f5d1f0 100644
--- a/mm/memory.c
+++ b/mm/memory.c
@@ -1577,12 +1577,12 @@
 		if (page->mapping && trylock_page(page)) {
 			lru_add_drain();  /* push cached pages to LRU */
 			/*
-			 * Because we lock page here and migration is
-			 * blocked by the pte's page reference, we need
-			 * only check for file-cache page truncation.
+			 * Because we lock page here, and migration is
+			 * blocked by the pte's page reference, and we
+			 * know the page is still mapped, we don't even
+			 * need to check for file-cache page truncation.
 			 */
-			if (page->mapping)
-				mlock_vma_page(page);
+			mlock_vma_page(page);
 			unlock_page(page);
 		}
 	}
diff --git a/mm/mlock.c b/mm/mlock.c
index a948be4..de73215 100644
--- a/mm/mlock.c
+++ b/mm/mlock.c
@@ -51,13 +51,10 @@
 /*
  *  LRU accounting for clear_page_mlock()
  */
-void __clear_page_mlock(struct page *page)
+void clear_page_mlock(struct page *page)
 {
-	VM_BUG_ON(!PageLocked(page));
-
-	if (!page->mapping) {	/* truncated ? */
+	if (!TestClearPageMlocked(page))
 		return;
-	}
 
 	dec_zone_page_state(page, NR_MLOCK);
 	count_vm_event(UNEVICTABLE_PGCLEARED);
@@ -290,14 +287,7 @@
 		page = follow_page(vma, addr, FOLL_GET | FOLL_DUMP);
 		if (page && !IS_ERR(page)) {
 			lock_page(page);
-			/*
-			 * Like in __mlock_vma_pages_range(),
-			 * because we lock page here and migration is
-			 * blocked by the elevated reference, we need
-			 * only check for file-cache page truncation.
-			 */
-			if (page->mapping)
-				munlock_vma_page(page);
+			munlock_vma_page(page);
 			unlock_page(page);
 			put_page(page);
 		}
diff --git a/mm/rmap.c b/mm/rmap.c
index 0d86433..bf03149 100644
--- a/mm/rmap.c
+++ b/mm/rmap.c
@@ -1155,7 +1155,10 @@
 	} else {
 		__dec_zone_page_state(page, NR_FILE_MAPPED);
 		mem_cgroup_dec_page_stat(page, MEMCG_NR_FILE_MAPPED);
+		mem_cgroup_end_update_page_stat(page, &locked, &flags);
 	}
+	if (unlikely(PageMlocked(page)))
+		clear_page_mlock(page);
 	/*
 	 * It would be tidy to reset the PageAnon mapping here,
 	 * but that might overwrite a racing page_add_anon_rmap
@@ -1165,6 +1168,7 @@
 	 * Leaving it set also helps swapoff to reinstate ptes
 	 * faster for those pages still in swapcache.
 	 */
+	return;
 out:
 	if (!anon)
 		mem_cgroup_end_update_page_stat(page, &locked, &flags);
diff --git a/mm/truncate.c b/mm/truncate.c
index f38055c..d51ce92 100644
--- a/mm/truncate.c
+++ b/mm/truncate.c
@@ -107,7 +107,6 @@
 
 	cancel_dirty_page(page, PAGE_CACHE_SIZE);
 
-	clear_page_mlock(page);
 	ClearPageMappedToDisk(page);
 	delete_from_page_cache(page);
 	return 0;
@@ -132,7 +131,6 @@
 	if (page_has_private(page) && !try_to_release_page(page, 0))
 		return 0;
 
-	clear_page_mlock(page);
 	ret = remove_mapping(mapping, page);
 
 	return ret;
@@ -394,8 +392,6 @@
 	if (page_has_private(page) && !try_to_release_page(page, GFP_KERNEL))
 		return 0;
 
-	clear_page_mlock(page);
-
 	spin_lock_irq(&mapping->tree_lock);
 	if (PageDirty(page))
 		goto failed;