Re: [RFC 3/5] perf: Allow per PMU access control

2018-09-28 Thread Tvrtko Ursulin
On 27/09/2018 21:15, Andi Kleen wrote: + mutex_lock(&pmus_lock); + list_for_each_entry(pmu, &pmus, entry) + pmu->perf_event_paranoid = sysctl_perf_event_paranoid; + mutex_unlock(&pmus_lock); What happens to pmus that got added later? There is a hunk a bit low

Re: [RFC 3/5] perf: Allow per PMU access control

2018-09-27 Thread Andi Kleen
> + mutex_lock(&pmus_lock); > + list_for_each_entry(pmu, &pmus, entry) > + pmu->perf_event_paranoid = sysctl_perf_event_paranoid; > + mutex_unlock(&pmus_lock); What happens to pmus that got added later? The rest looks good. Can you post a non RFC version? -Andi