tree c3ecd512422ad9f445f69c78037142a99bc8db2c
parent 1bca8cf1a2c3c6683b12ad28a3e826ca7a834978
author Paul E. McKenney <paulmck@linux.vnet.ibm.com> 1339524073 -0700
committer Paul E. McKenney <paulmck@linux.vnet.ibm.com> 1341257604 -0700

rcu: Introduce for_each_rcu_flavor() and use it

The arrival of TREE_PREEMPT_RCU some years back included some ugly
code involving either #ifdef or #ifdef'ed wrapper functions to iterate
over all non-SRCU flavors of RCU.  This commit therefore introduces
a for_each_rcu_flavor() iterator over the rcu_state structures for each
flavor of RCU to clean up a bit of the ugliness.

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