diff --git a/refs.h b/refs.h
index a92d2c74c8..e010f8aec2 100644
--- a/refs.h
+++ b/refs.h
@@ -432,19 +432,35 @@ int delete_refs(const char *msg, struct string_list *refnames,
 int refs_delete_reflog(struct ref_store *refs, const char *refname);
 int delete_reflog(const char *refname);
 
-/* iterate over reflog entries */
+/*
+ * Callback to process a reflog entry found by the iteration functions (see
+ * below)
+ */
 typedef int each_reflog_ent_fn(
 		struct object_id *old_oid, struct object_id *new_oid,
 		const char *committer, timestamp_t timestamp,
 		int tz, const char *msg, void *cb_data);
 
+/* Iterate over reflog entries in the log for `refname`. */
+
+/* oldest entry first */
 int refs_for_each_reflog_ent(struct ref_store *refs, const char *refname,
 			     each_reflog_ent_fn fn, void *cb_data);
+
+/* youngest entry first */
 int refs_for_each_reflog_ent_reverse(struct ref_store *refs,
 				     const char *refname,
 				     each_reflog_ent_fn fn,
 				     void *cb_data);
+
+/*
+ * Iterate over reflog entries in the log for `refname` in the main ref store.
+ */
+
+/* oldest entry first */
 int for_each_reflog_ent(const char *refname, each_reflog_ent_fn fn, void *cb_data);
+
+/* youngest entry first */
 int for_each_reflog_ent_reverse(const char *refname, each_reflog_ent_fn fn, void *cb_data);
 
 /*