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 --- rust/exports.c | 29 +++++++++++++++++++++++++++++ 1 file changed, 29 insertions(+) create mode 100644 rust/exports.c (limited to 'rust/exports.c') diff --git a/rust/exports.c b/rust/exports.c new file mode 100644 index 000000000..1b52460b0 --- /dev/null +++ b/rust/exports.c @@ -0,0 +1,29 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * A hack to export Rust symbols for loadable modules without having to redo + * the entire `include/linux/export.h` logic in Rust. + * + * This requires Rust's new/future `v0` mangling scheme because the default one + * ("legacy") uses invalid characters for C identifiers (thus we cannot use the + * `EXPORT_SYMBOL_*` macros). + * + * All symbols are exported as GPL-only to guarantee no GPL-only feature is + * accidentally exposed. + */ + +#include + +#define EXPORT_SYMBOL_RUST_GPL(sym) extern int sym; EXPORT_SYMBOL_GPL(sym) + +#include "exports_core_generated.h" +#include "exports_bindings_generated.h" +#include "exports_kernel_generated.h" + +#ifndef CONFIG_RUST_INLINE_HELPERS +#include "exports_helpers_generated.h" +#endif + +// For modules using `rust/build_error.rs`. +#ifdef CONFIG_RUST_BUILD_ASSERT_ALLOW +EXPORT_SYMBOL_RUST_GPL(rust_build_error); +#endif -- cgit v1.3.1