linux-stable/tools/testing/selftests/bpf/prog_tests/timer.c
Yucong Sun d3f7b1664d selfetest/bpf: Make some tests serial
Change tests that often fails in parallel execution mode to serial.

Signed-off-by: Yucong Sun <sunyucong@gmail.com>
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Link: https://lore.kernel.org/bpf/20211006185619.364369-15-fallentree@fb.com
2021-10-08 15:17:00 -07:00

56 lines
1.5 KiB
C

// SPDX-License-Identifier: GPL-2.0
/* Copyright (c) 2021 Facebook */
#include <test_progs.h>
#include "timer.skel.h"
static int timer(struct timer *timer_skel)
{
int err, prog_fd;
__u32 duration = 0, retval;
err = timer__attach(timer_skel);
if (!ASSERT_OK(err, "timer_attach"))
return err;
ASSERT_EQ(timer_skel->data->callback_check, 52, "callback_check1");
ASSERT_EQ(timer_skel->data->callback2_check, 52, "callback2_check1");
prog_fd = bpf_program__fd(timer_skel->progs.test1);
err = bpf_prog_test_run(prog_fd, 1, NULL, 0,
NULL, NULL, &retval, &duration);
ASSERT_OK(err, "test_run");
ASSERT_EQ(retval, 0, "test_run");
timer__detach(timer_skel);
usleep(50); /* 10 usecs should be enough, but give it extra */
/* check that timer_cb1() was executed 10+10 times */
ASSERT_EQ(timer_skel->data->callback_check, 42, "callback_check2");
ASSERT_EQ(timer_skel->data->callback2_check, 42, "callback2_check2");
/* check that timer_cb2() was executed twice */
ASSERT_EQ(timer_skel->bss->bss_data, 10, "bss_data");
/* check that there were no errors in timer execution */
ASSERT_EQ(timer_skel->bss->err, 0, "err");
/* check that code paths completed */
ASSERT_EQ(timer_skel->bss->ok, 1 | 2 | 4, "ok");
return 0;
}
/* TODO: use pid filtering */
void serial_test_timer(void)
{
struct timer *timer_skel = NULL;
int err;
timer_skel = timer__open_and_load();
if (!ASSERT_OK_PTR(timer_skel, "timer_skel_load"))
goto cleanup;
err = timer(timer_skel);
ASSERT_OK(err, "timer");
cleanup:
timer__destroy(timer_skel);
}