From 03786a3fa80514144fc65efdde1f89b072c15311 Mon Sep 17 00:00:00 2001
From: "Maxim.Mossienko" <maxim.mossienko@jetbrains.com>
Date: Sat, 23 Jul 2011 16:01:53 +0400
Subject: [PATCH] do not get storage lock just for attempting to set dirty flag
 when already have dirty attribute

---
 .../util/src/com/intellij/util/io/PersistentEnumeratorBase.java  | 1 +
 1 file changed, 1 insertion(+)

diff --git a/platform/util/src/com/intellij/util/io/PersistentEnumeratorBase.java b/platform/util/src/com/intellij/util/io/PersistentEnumeratorBase.java
index 497ace1512cc..512b3fa14d64 100644
--- a/platform/util/src/com/intellij/util/io/PersistentEnumeratorBase.java
+++ b/platform/util/src/com/intellij/util/io/PersistentEnumeratorBase.java
@@ -440,6 +440,7 @@ abstract class PersistentEnumeratorBase<Data> implements Forceable, Closeable {
   }
 
   protected final void markDirty(boolean dirty) throws IOException {
+    if (dirty && isDirty()) return;
     synchronized (ourLock) {
       if (myDirty) {
         if (!dirty) {