From: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Date: Mon, 18 Nov 2013 02:25:48 +0000 (-0800)
Subject: rcu: Optimize rcu_is_nocb_cpu() for RCU_NOCB_CPU_ALL
X-Git-Tag: v3.15-rc1~183^2~1^2~1^3~2
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=2f33b512a5460578f6cf11d7b7867bed53157c7c;p=pandora-kernel.git

rcu: Optimize rcu_is_nocb_cpu() for RCU_NOCB_CPU_ALL

If CONFIG_RCU_NOCB_CPU_ALL=y, then rcu_is_nocb_cpu() will always
return true, however, the current version nevertheless checks
rcu_nocb_mask.  This commit therefore creates a static inline
implementation of rcu_is_nocb_cpu() that unconditionally returns
true when CONFIG_RCU_NOCB_CPU_ALL=y.

Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Reviewed-by: Josh Triplett <josh@joshtriplett.org>
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