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SubjectRe: [PATCH 3/8] perf: Gather event accounting code
On Thu, Aug 01, 2013 at 03:13:30PM +0200, Jiri Olsa wrote:
> 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


Ok, I'll fix, thanks!


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