ffa83fb565fbc397cbafb4b71fd1cce276d4c3b6 - arm/linux

commit	ffa83fb565fbc397cbafb4b71fd1cce276d4c3b6	[log] [tgz]
author	Paul E. McKenney <paulmck@linux.vnet.ibm.com>	Sun Nov 17 19:27:16 2013 -0800
committer	Paul E. McKenney <paulmck@linux.vnet.ibm.com>	Mon Feb 17 16:03:09 2014 -0800
tree	c849b1ea3517d6853b7b4cd386a682187e314f09
parent	2f33b512a5460578f6cf11d7b7867bed53157c7c [diff]

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>

include/linux/rcupdate.h[diff]
include/linux/rcutiny.h[diff]
include/linux/rcutree.h[diff]
kernel/rcu/tree.c[diff]
kernel/rcu/tree_plugin.h[diff]

5 files changed

tree: c849b1ea3517d6853b7b4cd386a682187e314f09