tree 051b6bce04ab8f9e8b7ea6f42879bb350e306805
parent 8b425aa8f1acfe48aed919c7aadff2ed290fe969
author Paul E. McKenney <paul.mckenney@linaro.org> 1356909661 -0800
committer Paul E. McKenney <paulmck@linux.vnet.ibm.com> 1364310297 -0700

rcu: Abstract rcu_start_future_gp() from rcu_nocb_wait_gp()

CPUs going idle will need to record the need for a future grace
period, but won't actually need to block waiting on it.  This commit
therefore splits rcu_start_future_gp(), which does the recording, from
rcu_nocb_wait_gp(), which now invokes rcu_start_future_gp() to do the
recording, after which rcu_nocb_wait_gp() does the waiting.

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