xfs: refcount log intent cleanups [v2.0 48/57]

This series cleans up the refcount intent code before we start adding
support for realtime devices.  Similar to previous intent cleanup
patchsets, we start transforming the tracepoints so that the data
extraction are done inside the tracepoint code, and then we start
passing the intent itself to the _finish_one function.  This reduces the
boxing and unboxing of parameters.

This has been running on the djcloud for months with no problems.  Enjoy!

Signed-off-by: Darrick J. Wong <djwong@kernel.org>
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