Re: [PATCH v2 net-next] bpf: fix bpf_perf_event_read() helper

[Peter Zijlstra]

On Thu, Oct 22, 2015 at 08:30:36PM +0800, Wangnan (F) wrote:
> I have a question on inherit, not related to this patch:
> Is it safe for perf to disable attr->inherit if the event is system wide?
> I haven't read relate code completely. In my current knowledge the behavior
> of a system wide perf event should be same whether inherit is set or not.
> Is that true?

Yes, .inherit is pointless for cpu wide events, if we allow creating cpu
events with .inherit set that's unfortunate.

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