kernel/tools/testing/selftests/bpf/prog_tests/timer_mim.c, branch linux-6.2.y

selftests/bpf: Convert some selftests to high-level BPF map APIs

2022-05-13T13:15:21Z

Convert a bunch of selftests to using newly added high-level BPF map APIs. This change exposed that map_kptr selftests allocated too big buffer, which is fixed in this patch as well. Signed-off-by: Andrii Nakryiko Signed-off-by: Daniel Borkmann Link: https://lore.kernel.org/bpf/20220512220713.2617964-2-andrii@kernel.org

selftests/bpf: Migrate from bpf_prog_test_run

2022-02-03T06:31:18Z

bpf_prog_test_run is being deprecated in favor of the OPTS-based bpf_prog_test_run_opts. We end up unable to use CHECK in most cases, so replace usages with ASSERT_* calls. Signed-off-by: Delyan Kratunov Signed-off-by: Andrii Nakryiko Link: https://lore.kernel.org/bpf/20220202235423.1097270-2-delyank@fb.com

selfetest/bpf: Make some tests serial

2021-10-08T22:17:00Z

Change tests that often fails in parallel execution mode to serial. Signed-off-by: Yucong Sun Signed-off-by: Andrii Nakryiko Link: https://lore.kernel.org/bpf/20211006185619.364369-15-fallentree@fb.com

selftests/bpf: Reduce flakyness in timer_mim

2021-08-24T01:01:47Z

This patch extends wait time in timer_mim. As observed in slow CI environment, it is possible to have interrupt/preemption long enough to cause the test to fail, almost 1 failure in 5 runs. Signed-off-by: Yucong Sun Signed-off-by: Alexei Starovoitov Link: https://lore.kernel.org/bpf/20210823213629.3519641-1-fallentree@fb.com

selftests/bpf: Add a test with bpf_timer in inner map.

2021-07-15T20:31:11Z

Check that map-in-map supports bpf timers. Check that indirect "recursion" of timer callbacks works: timer_cb1() { bpf_timer_set_callback(timer_cb2); } timer_cb2() { bpf_timer_set_callback(timer_cb1); } Check that bpf_map_release htab_free_prealloced_timers bpf_timer_cancel_and_free hrtimer_cancel works while timer cb is running. "while true; do ./test_progs -t timer_mim; done" is a great stress test. It caught missing timer cancel in htab->extra_elems. timer_mim_reject.c is a negative test that checks that timer<->map mismatch is prevented. Signed-off-by: Alexei Starovoitov Signed-off-by: Daniel Borkmann Acked-by: Andrii Nakryiko Acked-by: Toke Høiland-Jørgensen Link: https://lore.kernel.org/bpf/20210715005417.78572-12-alexei.starovoitov@gmail.com