Re: [PATCH] perf stat: Support old kernels for bperf cgroup counting

Tejun Heo
2022-10-10T23:59:20Z

On Wed, Sep 21, 2022 at 09:14:35PM -0700, Namhyung Kim wrote:
> The recent change in the cgroup will break the backward compatiblity in
> the BPF program. It should support both old and new kernels using BPF
> CO-RE technique.
>
> Like the task_struct->__state handling in the offcpu analysis, we can
> check the field name in the cgroup struct.
>
> Signed-off-by: Namhyung Kim <namhyung@kernel.org>

Looks like it's acked enough but the patch doesn't apply anymore. Namhyung,
can you please refresh the patch? I'll route this through
cgroup/for-6.1-fixes unless somebody objects.

Thanks.

--
tejun