Re: [RFC PATCH 3/6] bpf: Save the pointer to struct perf_event to map

Peter Zijlstra
2015-07-17T12:02:14Z

On Fri, Jul 17, 2015 at 07:54:55PM +0800, Wangnan (F) wrote:
> Thanks. In next version we will introduce a new function which do oppsite
> thing to
> perf_event_release_kernel() in perf/event/core.c, then fetch the event
> before fdput.

perf_event_get() as proposed, with the addition of the refcount
increment inside the fdget/fdput() is fine.

Note that the _get() name already implies a refcount increment.