rcu: Add rcu_barrier() statistics to debugfs tracing
authorPaul E. McKenney <paul.mckenney@linaro.org>
Fri, 25 May 2012 18:49:15 +0000 (11:49 -0700)
committerPaul E. McKenney <paulmck@linux.vnet.ibm.com>
Mon, 2 Jul 2012 19:33:23 +0000 (12:33 -0700)
This commit adds an rcubarrier file to RCU's debugfs statistical tracing
directory, providing diagnostic information on rcu_barrier().

Signed-off-by: Paul E. McKenney <paul.mckenney@linaro.org>
Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Reviewed-by: Josh Triplett <josh@joshtriplett.org>
kernel/rcutree_trace.c

Simple merge