use NULL instead of a sentinal node in skiplist and list

[nbds] / runtime / rcu.c

diff --git a/runtime/rcu.c b/runtime/rcu.c
index c2e465e6cfcc3b0805e9d327f3430cd2ecee17be..f5e3c3ca27bc53252e447fb99b086b0d863db5a4 100644 (file)
--- a/runtime/rcu.c
+++ b/runtime/rcu.c
@@ -2,7 +2,9 @@
  * Written by Josh Dybnis and released to the public domain, as explained at
  * http://creativecommons.org/licenses/publicdomain
  *
- * safe memory reclemation using a simple technique from rcu
+ * safe memory reclamation using a simple technique from rcu
+ *
+ * WARNING: not robust enough for real-world use
  */
 #include <string.h>
 #include "common.h"