From 14600167d6ddc3829831a5470d73f091fc4b9aa7 Mon Sep 17 00:00:00 2001
From: Norman Maurer <nmaurer@redhat.com>
Date: Sat, 30 Nov 2013 19:48:40 +0100
Subject: [PATCH] [#2021] No need to synchronize for unpooled chunks

---
 buffer/src/main/java/io/netty/buffer/PoolArena.java | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/buffer/src/main/java/io/netty/buffer/PoolArena.java b/buffer/src/main/java/io/netty/buffer/PoolArena.java
index 0a3f9f429e..6acd979665 100644
--- a/buffer/src/main/java/io/netty/buffer/PoolArena.java
+++ b/buffer/src/main/java/io/netty/buffer/PoolArena.java
@@ -151,11 +151,13 @@ abstract class PoolArena<T> {
         buf.initUnpooled(newUnpooledChunk(reqCapacity), reqCapacity);
     }
 
-    synchronized void free(PoolChunk<T> chunk, long handle) {
+     void free(PoolChunk<T> chunk, long handle) {
         if (chunk.unpooled) {
             destroyChunk(chunk);
         } else {
-            chunk.parent.free(chunk, handle);
+            synchronized(this) {
+                chunk.parent.free(chunk, handle);
+            }
         }
     }