ZanderXu created HDFS-17394:
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Summary: [FGL] Remove unused WriteHoldCount of FSNamesystemLock
Key: HDFS-17394
URL: https://issues.apache.org/jira/browse/HDFS-17394
Project: Hadoop HDFS
Issue Type: Sub-task
Reporter: ZanderXu
{code:java}
public int getWriteHoldCount() {
return this.fsLock.getWriteHoldCount(FSNamesystemLockMode.GLOBAL);
}
@Deprecated // dirLock is obsolete, use namesystem.fsLock instead
public int getWriteHoldCount() {
return namesystem.getWriteHoldCount();
}
// sanity check.
if (!hadDirReadLock || !hadFsnReadLock || hadDirWriteLock ||
hadFsnWriteLock || dir.getReadHoldCount() != 1 ||
fsn.getReadHoldCount() != 1) {
// cannot relinquish
return false;
} {code}
getWriteHoldCount in FSNamesystem.java and FSDirectory.java is unused.
dir.getReadHoldCount() is useless as it's same as fsn.getReadHoldCount().
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