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Groups > linux.kernel > #1364032

Re: [PATCH 3/5] ftrace perf: Use ftrace_ops::private to store event pointer

From Jiri Olsa <jolsa@redhat.com>
Newsgroups linux.kernel
Subject Re: [PATCH 3/5] ftrace perf: Use ftrace_ops::private to store event pointer
Date 2016-03-24 10:50 +0100
Message-ID <rga3U-Bd-9@gated-at.bofh.it> (permalink)
References <rdkMa-1Kx-7@gated-at.bofh.it> <rdkMb-1Kx-29@gated-at.bofh.it> <rfRXj-4FL-3@gated-at.bofh.it>
Organization linux.* mail to news gateway

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On Wed, Mar 23, 2016 at 03:26:53PM +0100, Peter Zijlstra wrote:
> On Wed, Mar 16, 2016 at 03:34:31PM +0100, Jiri Olsa wrote:
> > Fixing this by using ftrace_ops::private value to keep
> > the perf_event pointer. This way we don't need to search
> > for triggered event (as tracepoint handler does) and
> > directly store sample.
> 
> container_of(ops, struct perf_event, ftrace_ops) would also have worked,
> right?

yes, I think that would work too

jirka

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Re: [PATCH 3/5] ftrace perf: Use ftrace_ops::private to store event  pointer Peter Zijlstra <peterz@infradead.org> - 2016-03-23 15:30 +0100
  Re: [PATCH 3/5] ftrace perf: Use ftrace_ops::private to store event  pointer Jiri Olsa <jolsa@redhat.com> - 2016-03-24 10:50 +0100
    Re: [PATCH 3/5] ftrace perf: Use ftrace_ops::private to store event  pointer Peter Zijlstra <peterz@infradead.org> - 2016-03-24 11:50 +0100

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