use NULL instead of a sentinal node in skiplist and list

[nbds] / todo

diff --git a/todo b/todo
index a54afec7d03e81dcb4d357491ad1b54f61180386..805a9a55a7ecf8fb09054db3a9e2e409df02ba68 100644 (file)
--- a/todo
+++ b/todo
@@ -3,5 +3,5 @@
 - investigate 16 byte CAS; ht can store GUIDs inline instead of pointers to actual keys 
 - test ht
 + optimize tracing code, still too much overhead
-- use NULL instead of a sentinal node in skiplist and list
++ use NULL instead of a sentinal node in skiplist and list
 - make interfaces for all data structures consistent