On 8/5/15 3:04 AM, Peter Zijlstra wrote:
>+ __perf_event_read(event);
>+ return perf_event_count(event);
>+}
Also, you probably want a WARN_ON(in_nmi()) there, this function is
_NOT_ NMI safe.
we check that very early on:
unsigned int trace_call_bpf(struct bpf_prog *prog, void *ctx)
{
unsigned int ret;
if (in_nmi()) /* not supported yet */
return 1;
...
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