rcu: Add tracing to rcu_gp_kthread()
authorPaul E. McKenney <paulmck@linux.vnet.ibm.com>
Fri, 9 Aug 2013 19:19:29 +0000 (12:19 -0700)
committerPaul E. McKenney <paulmck@linux.vnet.ibm.com>
Mon, 23 Sep 2013 16:16:14 +0000 (09:16 -0700)
This commit adds tracing to the rcu_gp_kthread() function in order to
help trace down hangs potentially involving this kthread.

Reported-by: Clark Williams <williams@redhat.com>
Reported-by: Carsten Emde <C.Emde@osadl.org>
Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>

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