perf intlist: Add priv member

Allows commands to leverage intlist infrastructure for opaque
structures.

For example an upcoming perf-trace change will use this as a means of
tracking syscalls statistics by task.

Signed-off-by: David Ahern <dsahern@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Namhyung Kim <namhyung.kim@lge.com>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/r/1380395584-9025-6-git-send-email-dsahern@gmail.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

2 files changed, 2 insertions, 0 deletions

diff --git a/tools/perf/util/intlist.c b/tools/perf/util/intlist.c
index 11a8d86f7fea..826d7b38c9a0 100644
--- a/tools/perf/util/intlist.c
+++ b/tools/perf/util/intlist.c
@@ -20,6 +20,7 @@ static struct rb_node *intlist__node_new(struct rblist *rblist __maybe_unused,
 
         if (node != NULL) {
                 node->i = i;
+                node->priv = NULL;
                 rc = &node->rb_node;
         }
 
diff --git a/tools/perf/util/intlist.h b/tools/perf/util/intlist.h
index 62351dad848f..0eb00ac39e01 100644
--- a/tools/perf/util/intlist.h
+++ b/tools/perf/util/intlist.h
@@ -9,6 +9,7 @@
 struct int_node {
         struct rb_node rb_node;
         int i;
+        void *priv;
 };
 
 struct intlist {