Messages in this thread | | | Date | Thu, 14 Feb 2019 08:26:13 -0800 | From | Andi Kleen <> | Subject | Re: [PATCH v5 07/12] perf/x86: no counter allocation support |
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> diff --git a/include/uapi/linux/perf_event.h b/include/uapi/linux/perf_event.h > index 9de8780..ec97a70 100644 > --- a/include/uapi/linux/perf_event.h > +++ b/include/uapi/linux/perf_event.h > @@ -372,7 +372,8 @@ struct perf_event_attr { > context_switch : 1, /* context switch data */ > write_backward : 1, /* Write ring buffer from end to beginning */ > namespaces : 1, /* include namespaces data */ > - __reserved_1 : 35; > + no_counter : 1, /* no counter allocation */
Not sure we really want to expose this in the user ABI. Perhaps make it a feature of the in kernel API only?
-Andi
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