perf session: Move the hist_entries rb tree to perf_session

As we'll need to sort multiple times for multiple perf sessions,
so that we can then do a diff.

Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Frédéric Weisbecker <fweisbec@gmail.com>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Paul Mackerras <paulus@samba.org>
LKML-Reference: <1260803439-16783-1-git-send-email-acme@infradead.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

1 files changed, 1 insertions, 1 deletions

diff --git a/tools/perf/builtin-trace.c b/tools/perf/builtin-trace.c
index 9d89ae423ca5..adce442dd603 100644
--- a/tools/perf/builtin-trace.c
+++ b/tools/perf/builtin-trace.c
@@ -103,7 +103,7 @@ static int process_sample_event(event_t *event, struct perf_session *session)
         return 0;
 }
 
-static int sample_type_check(u64 type)
+static int sample_type_check(u64 type, struct perf_session *session __used)
 {
         sample_type = type;