diff --git a/mm/mmap.c b/mm/mmap.c
index 5d09d08..32a287b 100644
--- a/mm/mmap.c
+++ b/mm/mmap.c
@@ -2358,11 +2358,17 @@
 	for (vma = mm->mmap; vma; vma = vma->vm_next) {
 		if (signal_pending(current))
 			goto out_unlock;
-		if (vma->anon_vma)
-			vm_lock_anon_vma(mm, vma->anon_vma);
 		if (vma->vm_file && vma->vm_file->f_mapping)
 			vm_lock_mapping(mm, vma->vm_file->f_mapping);
 	}
+
+	for (vma = mm->mmap; vma; vma = vma->vm_next) {
+		if (signal_pending(current))
+			goto out_unlock;
+		if (vma->anon_vma)
+			vm_lock_anon_vma(mm, vma->anon_vma);
+	}
+
 	ret = 0;
 
 out_unlock: