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HDFS-4522. LightWeightGSet expects incrementing a volatile to be atomic. Contributed by Colin Patrick McCabe.

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git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1455780 13f79535-47bb-0310-9956-ffa450edef68
This commit is contained in:
Aaron Myers 2013-03-13 02:55:20 +00:00
parent 86a940f7ad
commit 7c8419f14f
2 changed files with 4 additions and 1 deletions
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3
hadoop-hdfs-project/hadoop-hdfs/CHANGES.txt
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@ -396,6 +396,9 @@ Release 2.0.5-beta - UNRELEASED
HDFS-4592. Default values for access time precision are out of sync between
hdfs-default.xml and the code. (atm)
HDFS-4522. LightWeightGSet expects incrementing a volatile to be atomic.
(Colin Patrick McCabe via atm)
Release 2.0.4-alpha - UNRELEASED
INCOMPATIBLE CHANGES

2
hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/util/LightWeightGSet.java
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@ -72,7 +72,7 @@ public static interface LinkedElement {
/** Modification version for fail-fast.
* @see ConcurrentModificationException
*/
private volatile int modification = 0;
private int modification = 0;
/**
* @param recommended_length Recommended size of the internal array.