tree 8cadb7d4c326ad01ce7f0da55db8f03af17917e6
parent 70321d447aa1a7cc2d60db16234f43c5a65630e7
author Paul E. McKenney <paul.mckenney@linaro.org> 1323470627 -0800
committer Paul E. McKenney <paulmck@linux.vnet.ibm.com> 1323628399 -0800

rcu: Apply ACCESS_ONCE() to rcu_boost() return value

Both TINY_RCU's and TREE_RCU's implementations of rcu_boost() access
the ->boost_tasks and ->exp_tasks fields without preventing concurrent
changes to these fields.  This commit therefore applies ACCESS_ONCE in
order to prevent compiler mischief.

Signed-off-by: Paul E. McKenney <paul.mckenney@linaro.org>
Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>