diff --git a/Documentation/RCU/UP.txt b/Documentation/RCU/UP.rst similarity index 100% rename from Documentation/RCU/UP.txt rename to Documentation/RCU/UP.rst diff --git a/Documentation/RCU/listRCU.txt b/Documentation/RCU/listRCU.rst similarity index 100% rename from Documentation/RCU/listRCU.txt rename to Documentation/RCU/listRCU.rst diff --git a/Documentation/RCU/rcu.txt b/Documentation/RCU/rcu.rst similarity index 100% rename from Documentation/RCU/rcu.txt rename to Documentation/RCU/rcu.rst