diff --git a/mm/memory-failure.c b/mm/memory-failure.c
index bd3ab367ba2f..bb8e79381c1f 100644
--- a/mm/memory-failure.c
+++ b/mm/memory-failure.c
@@ -2584,10 +2584,6 @@ int unpoison_memory(unsigned long pfn)
 	    folio_test_reserved(folio) || folio_test_offline(folio))
 		goto unlock_mutex;
 
-	/*
-	 * Note that folio->_mapcount is overloaded in SLAB, so the simple test
-	 * in folio_mapped() has to be done after folio_test_slab() is checked.
-	 */
 	if (folio_mapped(folio)) {
 		unpoison_pr_info("Unpoison: Someone maps the hwpoison page %#lx\n",
 				 pfn, &unpoison_rs);