Messages in this thread | | | Date | Thu, 1 Aug 2013 15:13:30 +0200 | From | Jiri Olsa <> | Subject | Re: [PATCH 3/8] perf: Gather event accounting code |
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On Tue, Jul 23, 2013 at 02:31:01AM +0200, Frederic Weisbecker wrote: > Gather all the event accounting code to a single place, > once all the prerequisites are completed. This simplifies > the refcounting. > > Original-patch-by: Peter Zijlstra <peterz@infradead.org> > Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com> > Cc: Jiri Olsa <jolsa@redhat.com> > Cc: Peter Zijlstra <peterz@infradead.org> > Cc: Namhyung Kim <namhyung@kernel.org> > Cc: Ingo Molnar <mingo@kernel.org> > Cc: Arnaldo Carvalho de Melo <acme@redhat.com> > Cc: Stephane Eranian <eranian@google.com> > --- > kernel/events/core.c | 79 +++++++++++++++++++++++++++++-------------------- > 1 files changed, 47 insertions(+), 32 deletions(-) > > diff --git a/kernel/events/core.c b/kernel/events/core.c > index c5f435f..3bb73af 100644 > --- a/kernel/events/core.c > +++ b/kernel/events/core.c > @@ -3128,6 +3128,21 @@ static void free_event_rcu(struct rcu_head *head) > static void ring_buffer_put(struct ring_buffer *rb); > static void ring_buffer_detach(struct perf_event *event, struct ring_buffer *rb); > > +static void __free_event(struct perf_event *event) > +{ > + if (!event->parent) { > + if (event->attr.sample_type & PERF_SAMPLE_CALLCHAIN) > + put_callchain_buffers(); > + } > + > + if (event->destroy) > + event->destroy(event); > + > + if (event->ctx) > + put_ctx(event->ctx); > + > + call_rcu(&event->rcu_head, free_event_rcu); > +} > static void free_event(struct perf_event *event) > {
nitpick, missing nl between functions
> irq_work_sync(&event->pending); > @@ -3141,8 +3156,6 @@ static void free_event(struct perf_event *event) > atomic_dec(&nr_comm_events); > if (event->attr.task) > atomic_dec(&nr_task_events); > - if (event->attr.sample_type & PERF_SAMPLE_CALLCHAIN) > - put_callchain_buffers(); > if (is_cgroup_event(event)) { > atomic_dec(&per_cpu(perf_cgroup_events, event->cpu)); > static_key_slow_dec_deferred(&perf_sched_events); > @@ -3180,13 +3193,8 @@ static void free_event(struct perf_event *event) > if (is_cgroup_event(event)) > perf_detach_cgroup(event); > > - if (event->destroy) > - event->destroy(event); > - > - if (event->ctx) > - put_ctx(event->ctx); > > - call_rcu(&event->rcu_head, free_event_rcu); > + __free_event(event);
nitpick, extra nl above
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