object: allow clear_commit_marks_all to handle any repo

Allow callers to specify the repository to use.  Rename the function to
repo_clear_commit_marks to document its new scope.  No functional change
intended.

Signed-off-by: René Scharfe <l.s.r@web.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

bisect.c

@@ -1090,7 +1090,7 @@ enum bisect_error bisect_next_all(struct repository *r, const char *prefix)
 		  nr), nr, steps_msg);
 	free(steps_msg);
 	/* Clean up objects used, as they will be reused. */
-	clear_commit_marks_all(ALL_REV_FLAGS);
+	repo_clear_commit_marks(the_repository, ALL_REV_FLAGS);
 
 	return bisect_checkout(bisect_rev, no_checkout);
 }

builtin/checkout.c

@@ -1029,7 +1029,7 @@ static void orphaned_commit_warning(struct commit *old_commit, struct commit *ne
 		describe_detached_head(_("Previous HEAD position was"), old_commit);
 
 	/* Clean up objects used, as they will be reused. */
-	clear_commit_marks_all(ALL_REV_FLAGS);
+	repo_clear_commit_marks(the_repository, ALL_REV_FLAGS);
 }
 
 static int switch_branches(const struct checkout_opts *opts,

builtin/gc.c

@@ -786,7 +786,7 @@ static int should_write_commit_graph(void)
 
 	result = for_each_ref(dfs_on_ref, &data);
 
-	clear_commit_marks_all(SEEN);
+	repo_clear_commit_marks(the_repository, SEEN);
 
 	return result;
 }

object.c

@@ -453,12 +453,12 @@ void clear_object_flags(unsigned flags)
 	}
 }
 
-void clear_commit_marks_all(unsigned int flags)
+void repo_clear_commit_marks(struct repository *r, unsigned int flags)
 {
 	int i;
 
-	for (i = 0; i < the_repository->parsed_objects->obj_hash_size; i++) {
+	for (i = 0; i < r->parsed_objects->obj_hash_size; i++) {
-		struct object *obj = the_repository->parsed_objects->obj_hash[i];
+		struct object *obj = r->parsed_objects->obj_hash[i];
 		if (obj && obj->type == OBJ_COMMIT)
 			obj->flags &= ~flags;
 	}

object.h

@@ -191,8 +191,9 @@ void object_array_clear(struct object_array *array);
 void clear_object_flags(unsigned flags);
 
 /*
- * Clear the specified object flags from all in-core commit objects.
+ * Clear the specified object flags from all in-core commit objects from
+ * the specified repository.
  */
-void clear_commit_marks_all(unsigned int flags);
+void repo_clear_commit_marks(struct repository *r, unsigned int flags);
 
 #endif /* OBJECT_H */