Re: [PATCH bpf-next v7 5/8] selftests/bpf: Test cgroup_iter.

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On Fri, Aug 5, 2022 at 2:49 PM Hao Luo <haoluo@xxxxxxxxxx> wrote:
>
> Add a selftest for cgroup_iter. The selftest creates a mini cgroup tree
> of the following structure:
>
>     ROOT (working cgroup)
>      |
>    PARENT
>   /      \
> CHILD1  CHILD2
>
> and tests the following scenarios:
>
>  - invalid cgroup fd.
>  - pre-order walk over descendants from PARENT.
>  - post-order walk over descendants from PARENT.
>  - walk of ancestors from PARENT.
>  - walk from PARENT in the default order, which is pre-order.
>  - process only a single object (i.e. PARENT).
>  - early termination.
>
> Acked-by: Yonghong Song <yhs@xxxxxx>
> Signed-off-by: Hao Luo <haoluo@xxxxxxxxxx>
> ---

LGTM.

Acked-by: Andrii Nakryiko <andrii@xxxxxxxxxx>

>  .../selftests/bpf/prog_tests/cgroup_iter.c    | 237 ++++++++++++++++++
>  tools/testing/selftests/bpf/progs/bpf_iter.h  |   7 +
>  .../testing/selftests/bpf/progs/cgroup_iter.c |  39 +++
>  3 files changed, 283 insertions(+)
>  create mode 100644 tools/testing/selftests/bpf/prog_tests/cgroup_iter.c
>  create mode 100644 tools/testing/selftests/bpf/progs/cgroup_iter.c
>

[...]



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