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rcu: Advise most users not to enable RCU user mode
authorFrederic Weisbecker <fweisbec@gmail.com>
Wed, 10 Oct 2012 23:48:28 +0000 (01:48 +0200)
committerPaul E. McKenney <paulmck@linux.vnet.ibm.com>
Thu, 11 Oct 2012 00:35:01 +0000 (17:35 -0700)
Discourage distros from enabling CONFIG_RCU_USER_QS
because it brings overhead for no benefits yet.

It's not a useful feature on its own until we can
fully run an adaptive tickless kernel.

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

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