1 files changed, 24 insertions, 3 deletions

diff --git a/tools/perf/util/rblist.c b/tools/perf/util/rblist.c
index a16cdd2625ad..0dfe27d99458 100644
--- a/tools/perf/util/rblist.c
+++ b/tools/perf/util/rblist.c
@@ -48,10 +48,12 @@ void rblist__remove_node(struct rblist *rblist, struct rb_node *rb_node)
         rblist->node_delete(rblist, rb_node);
 }
 
-struct rb_node *rblist__find(struct rblist *rblist, const void *entry)
+static struct rb_node *__rblist__findnew(struct rblist *rblist,
+                                         const void *entry,
+                                         bool create)
 {
         struct rb_node **p = &rblist->entries.rb_node;
-        struct rb_node *parent = NULL;
+        struct rb_node *parent = NULL, *new_node = NULL;
 
         while (*p != NULL) {
                 int rc;
@@ -67,7 +69,26 @@ struct rb_node *rblist__find(struct rblist *rblist, const void *entry)
                         return parent;
         }
 
-        return NULL;
+        if (create) {
+                new_node = rblist->node_new(rblist, entry);
+                if (new_node) {
+                        rb_link_node(new_node, parent, p);
+                        rb_insert_color(new_node, &rblist->entries);
+                        ++rblist->nr_entries;
+                }
+        }
+
+        return new_node;
+}
+
+struct rb_node *rblist__find(struct rblist *rblist, const void *entry)
+{
+        return __rblist__findnew(rblist, entry, false);
+}
+
+struct rb_node *rblist__findnew(struct rblist *rblist, const void *entry)
+{
+        return __rblist__findnew(rblist, entry, true);
 }
 
 void rblist__init(struct rblist *rblist)