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scottl
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svn:date
V 27
2014-07-01T06:59:23.732820Z
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V 440
Merge r265463:

 Due to reasons unknown at this time, the system can be forced to write
 a journal block even when there are no journal entries to be written.
 Until the root cause is found, handle this case by ensuring that a
 valid journal segment is always written.

 Second, the data buffer used for writing journal entries was never
 being scrubbed of old data.  Fix this.

Submitted by:	Takehara Mikihito
Obtained from:	Netflix, Inc.

END