From: Frederic Weisbecker <fweisbec@gmail.com>
Date: Wed, 10 Oct 2012 23:48:28 +0000 (+0200)
Subject: rcu: Advise most users not to enable RCU user mode
X-Git-Tag: v3.7-rc1~37^2^2
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=d677124b1fc3b2706a13e92f1b329f1ac77e5f20;p=pandora-kernel.git

rcu: Advise most users not to enable RCU user mode

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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