[for-next][PATCH 4/4] ftrace/rcu: Do not trace debug_lockdep_rcu_enabled()

2013-09-05 Thread Steven Rostedt
From: "Steven Rostedt (Red Hat)" The function debug_lockdep_rcu_enabled() is part of the RCU lockdep debugging, and is called very frequently. I found that if I enable a lot of debugging and run the function graph tracer, this function can cause a live lock of the system. We don't usually trace

[for-next][PATCH 4/4] ftrace/rcu: Do not trace debug_lockdep_rcu_enabled()

2013-09-05 Thread Steven Rostedt
From: Steven Rostedt (Red Hat) rost...@goodmis.org The function debug_lockdep_rcu_enabled() is part of the RCU lockdep debugging, and is called very frequently. I found that if I enable a lot of debugging and run the function graph tracer, this function can cause a live lock of the system. We