From: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Date: Mon, 20 Apr 2015 17:27:15 +0000 (-0700)
Subject: rcu: Convert CONFIG_RCU_FANOUT_EXACT to boot parameter
X-Git-Tag: omap-for-v4.3/legacy-v2-signed~212^2^2^5~8
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=7fa270010e0ddd3693381431f373b3e3135b0695;p=pandora-kernel.git

rcu: Convert CONFIG_RCU_FANOUT_EXACT to boot parameter

The CONFIG_RCU_FANOUT_EXACT Kconfig parameter is used primarily (and
perhaps only) by rcutorture to verify that RCU works correctly in specific
rcu_node combining-tree configurations.  It therefore does not make
much sense have this as a question to people attempting to configure
their kernels.  So this commit creates an rcutree.rcu_fanout_exact=
boot parameter that rcutorture can use, and eliminates the original
CONFIG_RCU_FANOUT_EXACT Kconfig parameter.

Reported-by: Ingo Molnar <mingo@kernel.org>
Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Reviewed-by: Pranith Kumar <bobby.prani@gmail.com>
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