tree 9802c524d04374e6a4e5c5b9d3a0d3c9085ef2fd
parent 7db74df88b52844f4e966901e2972bba725e6766
author Paul E. McKenney <paul.mckenney@linaro.org> 1338293933 -0700
committer Paul E. McKenney <paulmck@linux.vnet.ibm.com> 1341257602 -0700

rcu: Move rcu_barrier_mutex to rcu_state structure

In order to allow each RCU flavor to concurrently execute its
rcu_barrier() function, it is necessary to move the relevant
state to the rcu_state structure.  This commit therefore moves the
rcu_barrier_mutex global variable to a new ->barrier_mutex field
in the rcu_state structure.

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