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

Wangnan (F)
2015-07-17T12:12:38Z

On 2015/7/17 20:02, Peter Zijlstra wrote:
> 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.

OK, you'll see it in v2.

Thank you.