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rcu: Let the world know when RCU adjusts its geometry
authorPaul E. McKenney <paulmck@linux.vnet.ibm.com>
Wed, 9 Oct 2013 22:20:33 +0000 (15:20 -0700)
committerPaul E. McKenney <paulmck@linux.vnet.ibm.com>
Tue, 3 Dec 2013 18:10:19 +0000 (10:10 -0800)
Some RCU bugs have been specific to the layout of the rcu_node tree,
but RCU will silently adjust the tree at boot time if appropriate.
This obscures valuable debugging information, so print a message when
this happens.

Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>

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