diff --git a/mm/huge_memory.c b/mm/huge_memory.c
index 86eafd91c982..1764184c4774 100644
--- a/mm/huge_memory.c
+++ b/mm/huge_memory.c
@@ -3023,8 +3023,10 @@ void split_huge_pmd_address(struct vm_area_struct *vma, unsigned long address,
 		return;
 
 	/*
-	 * Caller holds the mmap_sem write mode, so a huge pmd cannot
-	 * materialize from under us.
+	 * Caller holds the mmap_sem write mode or the anon_vma lock,
+	 * so a huge pmd cannot materialize from under us (khugepaged
+	 * holds both the mmap_sem write mode and the anon_vma lock
+	 * write mode).
 	 */
 	__split_huge_pmd(vma, pmd, address, freeze);
 }