From aeb709c767aeca996e6011133e4f7bdb2a4af652 Mon Sep 17 00:00:00 2001 From: Alexei Starovoitov Date: Wed, 30 Sep 2026 09:59:20 +0000 Subject: selftests/bpf: Add a test for objects stuck in free_by_rcu_ttrace Delete all elements of BPF_F_NO_PREALLOC hash map in one batch. The first free_bulk() starts RCU tasks trace GP and the rest of the elements are freed while it's in flight. Wait for call_rcu_ttrace_in_progress to clear in bpf_mem_cache of every cpu and check that free_by_rcu_ttrace and waiting_for_gp_ttrace lists are empty. Signed-off-by: Alexei Starovoitov Link: https://lore.kernel.org/bpf/20260930095920.601738-4-alexei.starovoitov@gmail.com Signed-off-by: Kumar Kartikeya Dwivedi --- include/kunit/visibility.h | 33 +++++++++++++++++++++++++++++++++ 1 file changed, 33 insertions(+) create mode 100644 include/kunit/visibility.h (limited to 'include/kunit/visibility.h') diff --git a/include/kunit/visibility.h b/include/kunit/visibility.h new file mode 100644 index 000000000..7c34c8ffc --- /dev/null +++ b/include/kunit/visibility.h @@ -0,0 +1,33 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +/* + * KUnit API to allow symbols to be conditionally visible during KUnit + * testing + * + * Copyright (C) 2022, Google LLC. + * Author: Rae Moar + */ + +#ifndef _KUNIT_VISIBILITY_H +#define _KUNIT_VISIBILITY_H + +#if IS_ENABLED(CONFIG_KUNIT) + /** + * VISIBLE_IF_KUNIT - A macro that sets symbols to be static if + * CONFIG_KUNIT is not enabled. Otherwise if CONFIG_KUNIT is enabled + * there is no change to the symbol definition. + */ + #define VISIBLE_IF_KUNIT + /** + * EXPORT_SYMBOL_IF_KUNIT(symbol) - Exports symbol into + * EXPORTED_FOR_KUNIT_TESTING namespace only if CONFIG_KUNIT is + * enabled. Must use MODULE_IMPORT_NS("EXPORTED_FOR_KUNIT_TESTING") + * in test file in order to use symbols. + * @symbol: the symbol identifier to export + */ + #define EXPORT_SYMBOL_IF_KUNIT(symbol) EXPORT_SYMBOL_NS(symbol, "EXPORTED_FOR_KUNIT_TESTING") +#else + #define VISIBLE_IF_KUNIT static + #define EXPORT_SYMBOL_IF_KUNIT(symbol) +#endif + +#endif /* _KUNIT_VISIBILITY_H */ -- cgit v1.3.1