tree c849b1ea3517d6853b7b4cd386a682187e314f09
parent 2f33b512a5460578f6cf11d7b7867bed53157c7c
author Paul E. McKenney <paulmck@linux.vnet.ibm.com> 1384745236 -0800
committer Paul E. McKenney <paulmck@linux.vnet.ibm.com> 1392681789 -0800

rcu: Optimize rcu_needs_cpu() for RCU_NOCB_CPU_ALL

If CONFIG_RCU_NOCB_CPU_ALL=y, then rcu_needs_cpu() will always
return false, however, the current version nevertheless checks
for RCU callbacks.  This commit therefore creates a static inline
implementation of rcu_needs_cpu() that unconditionally returns false
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>