Re: [PATCH bpf-next v2 6/8] cgroup: bpf: enable bpf programs to integrate with rstat

[Yonghong Song]

On 6/10/22 12:44 PM, Yosry Ahmed wrote:
> Enable bpf programs to make use of rstat to collect cgroup hierarchical
> stats efficiently:
> - Add cgroup_rstat_updated() kfunc, for bpf progs that collect stats.
> - Add cgroup_rstat_flush() kfunc, for bpf progs that read stats.
> - Add an empty bpf_rstat_flush() hook that is called during rstat
>    flushing, for bpf progs that flush stats to attach to. Attaching a bpf
>    prog to this hook effectively registers it as a flush callback.
>
> Signed-off-by: Yosry Ahmed <yosryahmed@xxxxxxxxxx>

Acked-by: Yonghong Song <yhs@xxxxxx>