Re: [PATCH v3 06/12] refs API: pass the "lock OID" to reflog "prepare"

 static void reflog_expiry_prepare(const char *refname,
-				  const struct object_id *oid,
+				  struct object_id *locked_oid,
 				  void *cb_data)
 {
 	struct expire_reflog_policy_cb *cb = cb_data;

@@ -361,7 +361,7 @@ static void reflog_expiry_prepare(const char *refname,
 		cb->unreachable_expire_kind = UE_HEAD;
 	} else {
 		cb->tip_commit = lookup_commit_reference_gently(the_repository,
-								oid, 1);
+								locked_oid, 1);
 		if (!cb->tip_commit)
 			cb->unreachable_expire_kind = UE_ALWAYS;
 		else

diff --git a/refs.h b/refs.h
index 48970dfc7e0..c009707438d 100644
--- a/refs.h
+++ b/refs.h

@@ -796,7 +796,7 @@ enum expire_reflog_flags {
  * expiration policy that is desired.
  *
  * reflog_expiry_prepare_fn -- Called once after the reference is
- *     locked.
+ *     locked. Called with the OID of the locked reference.
  *
  * reflog_expiry_should_prune_fn -- Called once for each entry in the
  *     existing reflog. It should return true iff that entry should be

@@ -806,7 +806,7 @@ enum expire_reflog_flags {
  *     unlocked again.
  */
 typedef void reflog_expiry_prepare_fn(const char *refname,
-				      const struct object_id *oid,
+				      struct object_id *lock_oid,
 				      void *cb_data);