Comment debug facility

Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>

diff --git a/urcu-rbtree.c b/urcu-rbtree.c
index 02dced23b7a8c1eee329ddc27f15f24e1e778281..7cba54c4ec8189c8de8b30facffbf85659187d08 100644 (file)
--- a/urcu-rbtree.c
+++ b/urcu-rbtree.c
@@ -151,7 +151,9 @@
 
 /*
  * Undefine this to enable the non-RCU rotate and transplant functions
- * (for debugging).
+ * (for debugging). Note that these versions don't support the tree
+ * max_end updates, so lookups must be performed with
+ * rcu_rbtree_search_begin_key when using this debug facility.
  */
 #define RBTREE_RCU_SUPPORT_ROTATE_LEFT
 #define RBTREE_RCU_SUPPORT_ROTATE_RIGHT