diff options
| author | Mykyta Yatsenko <yatsenko@meta.com> | 2026-01-31 18:53:59 -0800 |
|---|---|---|
| committer | Andrii Nakryiko <andrii@kernel.org> | 2026-02-03 16:58:47 -0800 |
| commit | d02fdd7195ca24005e36a6f7efed41f9c0ca7f72 (patch) | |
| tree | ebde08b900defc7992283879eb3488724a25cd72 | |
| parent | 10653c0dd86812981a9cf7112f0711f9f1f153a8 (diff) | |
selftests/bpf: Add stress test for timer async cancel
Extend BPF timer selftest to run stress test for async cancel.
Signed-off-by: Mykyta Yatsenko <yatsenko@meta.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Link: https://lore.kernel.org/bpf/20260201025403.66625-6-alexei.starovoitov@gmail.com
| -rw-r--r-- | tools/testing/selftests/bpf/prog_tests/timer.c | 18 | ||||
| -rw-r--r-- | tools/testing/selftests/bpf/progs/timer.c | 14 |
2 files changed, 28 insertions, 4 deletions
diff --git a/tools/testing/selftests/bpf/prog_tests/timer.c b/tools/testing/selftests/bpf/prog_tests/timer.c index 4d853d1bd2a7..a157a2a699e6 100644 --- a/tools/testing/selftests/bpf/prog_tests/timer.c +++ b/tools/testing/selftests/bpf/prog_tests/timer.c @@ -23,13 +23,14 @@ static void *spin_lock_thread(void *arg) } -static int timer_stress(struct timer *timer_skel) +static int timer_stress_runner(struct timer *timer_skel, bool async_cancel) { int i, err = 1, prog_fd; LIBBPF_OPTS(bpf_test_run_opts, topts); pthread_t thread_id[NUM_THR]; void *ret; + timer_skel->bss->async_cancel = async_cancel; prog_fd = bpf_program__fd(timer_skel->progs.race); for (i = 0; i < NUM_THR; i++) { err = pthread_create(&thread_id[i], NULL, @@ -46,6 +47,16 @@ static int timer_stress(struct timer *timer_skel) return err; } +static int timer_stress(struct timer *timer_skel) +{ + return timer_stress_runner(timer_skel, false); +} + +static int timer_stress_async_cancel(struct timer *timer_skel) +{ + return timer_stress_runner(timer_skel, true); +} + static int timer(struct timer *timer_skel) { int err, prog_fd; @@ -118,6 +129,11 @@ void serial_test_timer_stress(void) test_timer(timer_stress); } +void serial_test_timer_stress_async_cancel(void) +{ + test_timer(timer_stress_async_cancel); +} + void test_timer_interrupt(void) { struct timer_interrupt *skel = NULL; diff --git a/tools/testing/selftests/bpf/progs/timer.c b/tools/testing/selftests/bpf/progs/timer.c index 4c677c001258..a81413514e4b 100644 --- a/tools/testing/selftests/bpf/progs/timer.c +++ b/tools/testing/selftests/bpf/progs/timer.c @@ -1,13 +1,17 @@ // SPDX-License-Identifier: GPL-2.0 /* Copyright (c) 2021 Facebook */ -#include <linux/bpf.h> -#include <time.h> + +#include <vmlinux.h> #include <stdbool.h> #include <errno.h> #include <bpf/bpf_helpers.h> #include <bpf/bpf_tracing.h> +#define CLOCK_MONOTONIC 1 +#define CLOCK_BOOTTIME 7 + char _license[] SEC("license") = "GPL"; + struct hmap_elem { int counter; struct bpf_timer timer; @@ -63,6 +67,7 @@ __u64 callback_check = 52; __u64 callback2_check = 52; __u64 pinned_callback_check; __s32 pinned_cpu; +bool async_cancel = 0; #define ARRAY 1 #define HTAB 2 @@ -419,7 +424,10 @@ int race(void *ctx) bpf_timer_set_callback(timer, race_timer_callback); bpf_timer_start(timer, 0, 0); - bpf_timer_cancel(timer); + if (async_cancel) + bpf_timer_cancel_async(timer); + else + bpf_timer_cancel(timer); return 0; } |