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| author | Yucong Sun <sunyucong@gmail.com> | 2021-10-06 11:56:11 -0700 |
|---|---|---|
| committer | Andrii Nakryiko <andrii@kernel.org> | 2021-10-08 15:10:43 -0700 |
| commit | d719de0d2f3cbdb5890a147b90a51c5eaaef103e (patch) | |
| tree | 363c270ccc427c5772f6802454a647321dd913a3 | |
| parent | e87c3434f81ae566693cfdc22370dc938b2989dd (diff) | |
selftests/bpf: Fix race condition in enable_stats
In parallel execution mode, this test now need to use atomic operation
to avoid race condition.
Signed-off-by: Yucong Sun <sunyucong@gmail.com>
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Link: https://lore.kernel.org/bpf/20211006185619.364369-7-fallentree@fb.com
| -rw-r--r-- | tools/testing/selftests/bpf/progs/test_enable_stats.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/tools/testing/selftests/bpf/progs/test_enable_stats.c b/tools/testing/selftests/bpf/progs/test_enable_stats.c index 01a002ade529..1705097d01d7 100644 --- a/tools/testing/selftests/bpf/progs/test_enable_stats.c +++ b/tools/testing/selftests/bpf/progs/test_enable_stats.c @@ -13,6 +13,6 @@ __u64 count = 0; SEC("raw_tracepoint/sys_enter") int test_enable_stats(void *ctx) { - count += 1; + __sync_fetch_and_add(&count, 1); return 0; } |