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| author |   Feng Zhou <zhoufeng.zf@bytedance.com> | 2023-05-06 11:15:45 +0800 |
|---|---|---|
| committer |   Alexei Starovoitov <ast@kernel.org> | 2023-05-06 13:56:38 -0700 |
| commit | 49e0263ab40f15a11cefa397bb17a0204505cead (patch) | |
| tree | 0aa9ef72877daa223b52b9856933342d9172b401 /kernel/bpf/helpers.c | |
| parent | bpf: Add bpf_task_under_cgroup() kfunc (diff) | |
| download | linux-rng-49e0263ab40f15a11cefa397bb17a0204505cead.tar.xz linux-rng-49e0263ab40f15a11cefa397bb17a0204505cead.zip | |
selftests/bpf: Add testcase for bpf_task_under_cgroup
test_progs:
Tests new kfunc bpf_task_under_cgroup().
The bpf program saves the new task's pid within a given cgroup to
the remote_pid, which is convenient for the user-mode program to
verify the test correctness.
The user-mode program creates its own mount namespace, and mounts the
cgroupsv2 hierarchy in there, call the fork syscall, then check if
remote_pid and local_pid are unequal.
Signed-off-by: Feng Zhou <zhoufeng.zf@bytedance.com>
Acked-by: Yonghong Song <yhs@fb.com>
Link: https://lore.kernel.org/r/20230506031545.35991-3-zhoufeng.zf@bytedance.com
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Diffstat (limited to 'kernel/bpf/helpers.c')
0 files changed, 0 insertions, 0 deletions