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server: Add global namespace lock. (#1398)

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Fixes #1393
This commit is contained in:
Harshavardhana
2016-04-29 01:29:09 -07:00
committed by Anand Babu (AB) Periasamy
parent 8deddb82f4
commit 984903cce1
9 changed files with 157 additions and 142 deletions
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10
xl-v1-createfile.go
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@@ -58,10 +58,9 @@ func (xl XL) writeErasure(volume, path string, reader *io.PipeReader, wcloser *w
defer wcloser.release()
// Lock right before reading from disk.
readLock := true
xl.lockNS(volume, path, readLock)
nsMutex.RLock(volume, path)
partsMetadata, errs := xl.getPartsMetadata(volume, path)
xl.unlockNS(volume, path, readLock)
nsMutex.RUnlock(volume, path)
// Count errors other than fileNotFound, bigger than the allowed
// readQuorum, if yes throw an error.
@@ -263,9 +262,8 @@ func (xl XL) writeErasure(volume, path string, reader *io.PipeReader, wcloser *w
}
// Lock right before commit to disk.
readLock = false // false means writeLock.
xl.lockNS(volume, path, readLock)
defer xl.unlockNS(volume, path, readLock)
nsMutex.Lock(volume, path)
defer nsMutex.Unlock(volume, path)
// Close all writers and metadata writers in routines.
for index, writer := range writers {