rcu: Fix srcu_barrier() docbook header

The srcu_barrier() docbook header left out the "sp" argument, so this
commit adds that argument's docbook text.

Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
This commit is contained in:
Paul E. McKenney 2013-10-09 08:09:29 -07:00
commit 4461212aa0