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selftests/bpf: Add test result messages for test_task_storage_map_stress_lookup

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Add test result message when test_task_storage_map_stress_lookup()
succeeds or is skipped. The test case can be skipped due to the choose
of preemption model in kernel config, so export skips in test_maps.c and
increase it when needed.

The following is the output of test_maps when the test case succeeds or
is skipped:

  test_task_storage_map_stress_lookup:PASS
  test_maps: OK, 0 SKIPPED

  test_task_storage_map_stress_lookup SKIP (no CONFIG_PREEMPT)
  test_maps: OK, 1 SKIPPED

Fixes: 73b97bc78b ("selftests/bpf: Test concurrent updates on bpf_task_storage_busy")
Signed-off-by: Hou Tao <houtao1@huawei.com>
Link: https://lore.kernel.org/r/20220919035714.2195144-1-houtao@huaweicloud.com
Signed-off-by: Martin KaFai Lau <martin.lau@kernel.org>
This commit is contained in:
Hou Tao 2022-09-19 11:57:14 +08:00 committed by Martin KaFai Lau
parent 571f9738bf
commit a7e85406bd
3 changed files with 8 additions and 2 deletions
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6
tools/testing/selftests/bpf/map_tests/task_storage_map.c
View File

@ -77,8 +77,11 @@ void test_task_storage_map_stress_lookup(void)
CHECK(err, "open_and_load", "error %d\n", err);
/* Only for a fully preemptible kernel */
if (!skel->kconfig->CONFIG_PREEMPT)
if (!skel->kconfig->CONFIG_PREEMPT) {
printf("%s SKIP (no CONFIG_PREEMPT)\n", __func__);
skips++;
return;
}
/* Save the old affinity setting */
sched_getaffinity(getpid(), sizeof(old), &old);
@ -119,4 +122,5 @@ out:
read_bpf_task_storage_busy__destroy(skel);
/* Restore affinity setting */
sched_setaffinity(getpid(), sizeof(old), &old);
printf("%s:PASS\n", __func__);
}

2
tools/testing/selftests/bpf/test_maps.c
View File

@ -30,7 +30,7 @@
#define ENOTSUPP 524
#endif
static int skips;
int skips;
static struct bpf_map_create_opts map_opts = { .sz = sizeof(map_opts) };

2
tools/testing/selftests/bpf/test_maps.h
View File

@ -14,4 +14,6 @@
} \
})
extern int skips;
#endif