rcu: Add tracing for _rcu_barrier()
authorPaul E. McKenney <paul.mckenney@linaro.org>
Thu, 24 May 2012 01:47:05 +0000 (18:47 -0700)
committerPaul E. McKenney <paulmck@linux.vnet.ibm.com>
Mon, 2 Jul 2012 19:33:23 +0000 (12:33 -0700)
commita83eff0a82a7f3f14fea477fd41e6c082e7fc96a
tree9fb65b061716c622962c42b8318f06fd0d2919cd
parentcf3a9c4842b1e097dbe0854933c471d43dd24f69
rcu: Add tracing for _rcu_barrier()

This commit adds event tracing for _rcu_barrier() execution.  This
is defined only if RCU_TRACE=y.

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>
include/trace/events/rcu.h
kernel/rcutree.c