selftests/bpf: Add selftests for bpf_cgroup_ancestor() kfunc

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bpf_cgroup_ancestor() allows BPF programs to access the ancestor of a
struct cgroup *. This patch adds selftests that validate its expected
behavior.

Signed-off-by: David Vernet <void@manifault.com>
Link: https://lore.kernel.org/r/20221122055458.173143-5-void@manifault.com
Signed-off-by: Alexei Starovoitov <ast@kernel.org>

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David Vernet 2022-11-21 23:54:58 -06:00 • committed by Alexei Starovoitov

parent 5ca7867078

commit 227a89cf50

3 changed files with 47 additions and 0 deletions

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1

tools/testing/selftests/bpf/prog_tests/cgrp_kfunc.c

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1

tools/testing/selftests/bpf/progs/cgrp_kfunc_common.h

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45

tools/testing/selftests/bpf/progs/cgrp_kfunc_success.c

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