On 10/22/15 6:59 AM, Peter Zijlstra wrote:
+ if (unlikely(event->oncpu != smp_processor_id()))
>+ return -EOPNOTSUPP;
>+
>+ perf_sample_data_init(&sample_data, 0, 0);
>+ sample_data.raw = &raw;
>+ perf_event_output(event, &sample_data, regs);
>+ return 0;
>+}
Note that this function also very much requires event to be local.
correct. that's why there is a dynamic check above to prevent buggy
programs causing issues.
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