tree b5ae6e84a953fe6e34e9830d4c6b619703a8482e
parent dac8bdb429e225a2a2ef74f575a4ad2f5f51d5f4
author Paul E. McKenney <paulmck@linux.vnet.ibm.com> 1459372582 -0700
committer Paul E. McKenney <paulmck@linux.vnet.ibm.com> 1459429497 -0700

rcutorture: Add boot-time adjustment of leaf fanout

Currently, the rcutorture scripts do not test boot-time adjustment of
leaf fanout (via the rcutree.rcu_fanout_leaf boot parameter), as was noted
during testing carried out by Iftekhar Ahmed of Oregon State University.
This commit therefore adjusts TREE04's CONFIG_RCU_FANOUT_LEAF from 4 to 3,
and also adds rcutree.rcu_fanout_leaf=4 to its boot parameters.  This
change forces RCU's boot-time geometry-change code to be exercised.

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