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SubjectRe: [PATCH bpf-next v1] bpftool: Add support for querying cgroup_iter link
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On 8/29/22 4:18 PM, Hao Luo wrote:
> Support dumping info of a cgroup_iter link. This includes
> showing the cgroup's id and the order for walking the cgroup
> hierarchy. Example output is as follows:
>
>> bpftool link show
> 1: iter prog 2 target_name bpf_map
> 2: iter prog 3 target_name bpf_prog
> 3: iter prog 12 target_name cgroup cgroup_id 72 order self_only
>
>> bpftool -p link show
> [{
> "id": 1,
> "type": "iter",
> "prog_id": 2,
> "target_name": "bpf_map"
> },{
> "id": 2,
> "type": "iter",
> "prog_id": 3,
> "target_name": "bpf_prog"
> },{
> "id": 3,
> "type": "iter",
> "prog_id": 12,
> "target_name": "cgroup",
> "cgroup_id": 72,
> "order": "self_only"
> }
> ]
>
> Signed-off-by: Hao Luo <haoluo@google.com>

Acked-by: Yonghong Song <yhs@fb.com>

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