diff options
| author | Mark Brown <broonie@kernel.org> | 2024-03-18 17:30:46 +0000 |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2024-03-18 17:30:46 +0000 |
| commit | 5bd249aec71d75f0088357e4aba27fde0610f823 (patch) | |
| tree | ed63b21b48b711430492734564775758a39eb94c /tools/testing/selftests/bpf/progs/timer.c | |
| parent | 7397175cb7b48f7a3fc699083aa46f1234904c7e (diff) | |
| parent | e8f897f4afef0031fe618a8e94127a0934896aba (diff) | |
spi: Merge up v6.8 release
An i.MX fix depends on other fixes that were sent to v6.8.
Diffstat (limited to 'tools/testing/selftests/bpf/progs/timer.c')
| -rw-r--r-- | tools/testing/selftests/bpf/progs/timer.c | 34 |
1 files changed, 33 insertions, 1 deletions
diff --git a/tools/testing/selftests/bpf/progs/timer.c b/tools/testing/selftests/bpf/progs/timer.c index 8b946c8188c6..f615da97df26 100644 --- a/tools/testing/selftests/bpf/progs/timer.c +++ b/tools/testing/selftests/bpf/progs/timer.c @@ -51,7 +51,8 @@ struct { __uint(max_entries, 1); __type(key, int); __type(value, struct elem); -} abs_timer SEC(".maps"), soft_timer_pinned SEC(".maps"), abs_timer_pinned SEC(".maps"); +} abs_timer SEC(".maps"), soft_timer_pinned SEC(".maps"), abs_timer_pinned SEC(".maps"), + race_array SEC(".maps"); __u64 bss_data; __u64 abs_data; @@ -390,3 +391,34 @@ int BPF_PROG2(test5, int, a) return 0; } + +static int race_timer_callback(void *race_array, int *race_key, struct bpf_timer *timer) +{ + bpf_timer_start(timer, 1000000, 0); + return 0; +} + +SEC("syscall") +int race(void *ctx) +{ + struct bpf_timer *timer; + int err, race_key = 0; + struct elem init; + + __builtin_memset(&init, 0, sizeof(struct elem)); + bpf_map_update_elem(&race_array, &race_key, &init, BPF_ANY); + + timer = bpf_map_lookup_elem(&race_array, &race_key); + if (!timer) + return 1; + + err = bpf_timer_init(timer, &race_array, CLOCK_MONOTONIC); + if (err && err != -EBUSY) + return 1; + + bpf_timer_set_callback(timer, race_timer_callback); + bpf_timer_start(timer, 0, 0); + bpf_timer_cancel(timer); + + return 0; +} |