diff --git a/fs/dcache.c b/fs/dcache.c
index 4858d2e5cf2e..1f8e6acb0ea4 100644
--- a/fs/dcache.c
+++ b/fs/dcache.c
@@ -761,7 +761,8 @@ EXPORT_SYMBOL(dget_parent);
  * acquire the reference to alias and return it. Otherwise return NULL.
  * Notice that if inode is a directory there can be only one alias and
  * it can be unhashed only if it has no children, or if it is the root
- * of a filesystem.
+ * of a filesystem, or if the directory was renamed and d_revalidate
+ * was the first vfs operation to notice.
  *
  * If the inode has an IS_ROOT, DCACHE_DISCONNECTED alias, then prefer
  * any other hashed alias over that one.