Hello!

This series updates RCU documentation to reflect RCU API additions:

1.	Update whatisRCU.rst for recent RCU API additions.

2.	Add RCU guards to checklist.rst.

						Thanx, Paul

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 checklist.rst |   27 +++++++---
 whatisRCU.rst |  150 +++++++++++++++++++++++++++++++++++++++++++++-------------
 2 files changed, 137 insertions(+), 40 deletions(-)