K 10
svn:author
V 3
jhb
K 8
svn:date
V 27
2007-03-07T20:48:48.000000Z
K 7
svn:log
V 256
Fix some nits in lock profiling for rwlocks:
- Properly note when a read lock is released.
- Always note when we contest on a read lock.
- Only note success of obtaining read locks for the first reader to match
  the behavior of sx(9).

Reviewed by:	kmacy

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