[RFC] [PATCH bpf-next 0/1] Implement getting cgroup path bpf helper · Xufeng Zhang <hidden> · 2021-05-12
[RFC] [PATCH bpf-next 1/1] bpf: Add a BPF helper for getting the cgroup path of current task · Xufeng Zhang <hidden> · 2021-05-12
Re: [RFC] [PATCH bpf-next 1/1] bpf: Add a BPF helper for getting the cgroup path of current task · Alexei Starovoitov <hidden> · 2021-05-12
Re: [RFC] [PATCH bpf-next 1/1] bpf: Add a BPF helper for getting the cgroup path of current task · xufeng zhang <hidden> · 2021-05-13
Re: [RFC] [PATCH bpf-next 1/1] bpf: Add a BPF helper for getting the cgroup path of current task · Alexei Starovoitov <hidden> · 2021-05-14
Re: [RFC] [PATCH bpf-next 1/1] bpf: Add a BPF helper for getting the cgroup path of current task · KP Singh <kpsingh@kernel.org> · 2021-05-14
Re: [RFC] [PATCH bpf-next 1/1] bpf: Add a BPF helper for getting the cgroup path of current task · xufeng zhang <hidden> · 2021-05-14
Re: [RFC] [PATCH bpf-next 1/1] bpf: Add a BPF helper for getting the cgroup path of current task · KP Singh <kpsingh@kernel.org> · 2021-05-14

Re: [RFC] [PATCH bpf-next 1/1] bpf: Add a BPF helper for getting the cgroup path of current task

From: KP Singh <kpsingh@kernel.org>
Date: 2021-05-14 11:21:58
Also in: bpf, lkml

quoted

About your suggestion, the *cgroup_id helpers only works for cgroup v2,
however, we're still using cgroup v1 in product，and even for cgroup v2,
I'm not sure if there is any way for user space to get this cgroup id
timely(after container created, but before container start to run)。

So if there is any effective way works for cgroup v1?

https://github.com/systemd/systemd/blob/main/NEWS#L379

I agree that we should not focus on cgroup v1 if we do add a helper.

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