+/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _BCACHEFS_TEST_H
#define _BCACHEFS_TEST_H
#ifdef CONFIG_BCACHEFS_TESTS
-void bch2_btree_perf_test(struct bch_fs *, const char *, u64, unsigned);
+int bch2_btree_perf_test(struct bch_fs *, const char *, u64, unsigned);
#else