3.13.11-ckt31 -stable review patch.  If anyone has any objections, please let 
me know.

------------------

From: Peter Zijlstra <pet...@infradead.org>

commit b71b437eedaed985062492565d9d421d975ae845 upstream.

Arnaldo reported that tracepoint filters seem to misbehave (ie. not
apply) on inherited events.

The fix is obvious; filters are only set on the actual (parent)
event, use the normal pattern of using this parent event for filters.
This is safe because each child event has a reference to it.

Reported-by: Arnaldo Carvalho de Melo <a...@kernel.org>
Tested-by: Arnaldo Carvalho de Melo <a...@kernel.org>
Signed-off-by: Peter Zijlstra (Intel) <pet...@infradead.org>
Cc: Adrian Hunter <adrian.hun...@intel.com>
Cc: Arnaldo Carvalho de Melo <a...@redhat.com>
Cc: David Ahern <dsah...@gmail.com>
Cc: Frédéric Weisbecker <fweis...@gmail.com>
Cc: Jiri Olsa <jo...@kernel.org>
Cc: Jiri Olsa <jo...@redhat.com>
Cc: Linus Torvalds <torva...@linux-foundation.org>
Cc: Peter Zijlstra <pet...@infradead.org>
Cc: Steven Rostedt <rost...@goodmis.org>
Cc: Thomas Gleixner <t...@linutronix.de>
Cc: Wang Nan <wangn...@huawei.com>
Link: 
http://lkml.kernel.org/r/20151102095051.gn17...@twins.programming.kicks-ass.net
Signed-off-by: Ingo Molnar <mi...@kernel.org>
Signed-off-by: Kamal Mostafa <ka...@canonical.com>
---
 kernel/events/core.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/kernel/events/core.c b/kernel/events/core.c
index f1aec1c..5a90a64 100644
--- a/kernel/events/core.c
+++ b/kernel/events/core.c
@@ -5863,6 +5863,10 @@ static int perf_tp_filter_match(struct perf_event *event,
 {
        void *record = data->raw->data;
 
+       /* only top level events have filters set */
+       if (event->parent)
+               event = event->parent;
+
        if (likely(!event->filter) || filter_match_preds(event->filter, record))
                return 1;
        return 0;
-- 
1.9.1

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