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 --- tools/testing/vsock/control.h | 17 +++++++++++++++++ 1 file changed, 17 insertions(+) create mode 100644 tools/testing/vsock/control.h (limited to 'tools/testing/vsock/control.h') diff --git a/tools/testing/vsock/control.h b/tools/testing/vsock/control.h new file mode 100644 index 000000000..c1f77fdb2 --- /dev/null +++ b/tools/testing/vsock/control.h @@ -0,0 +1,17 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ +#ifndef CONTROL_H +#define CONTROL_H + +#include + +void control_init(const char *control_host, const char *control_port, + bool server); +void control_cleanup(void); +void control_writeln(const char *str); +char *control_readln(void); +unsigned long control_readulong(void); +void control_expectln(const char *str); +bool control_cmpln(char *line, const char *str, bool fail); +void control_writeulong(unsigned long value); + +#endif /* CONTROL_H */ -- cgit v1.3.1