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authorSteven Rostedt (Red Hat) <rostedt@goodmis.org>2014-12-12 20:05:10 -0500
committerSteven Rostedt <rostedt@goodmis.org>2014-12-15 10:16:50 -0500
commit5f893b2639b21ffe6834b1aebba392c37d2b83f9 (patch)
treeaff7db6baf3dd393a4791f2106ebacbe02b1ae5b /Documentation
parenttracing/sched: Check preempt_count() for current when reading task->state (diff)
tracing: Move enabling tracepoints to just after rcu_init()
Enabling tracepoints at boot up can be very useful. The tracepoint can be initialized right after RCU has been. There's no need to wait for the early_initcall() to be called. That's too late for some things that can use tracepoints for debugging. Move the logic to enable tracepoints out of the initcalls and into init/main.c to right after rcu_init(). This also allows trace_printk() to be used early too. Link: http://lkml.kernel.org/r/alpine.DEB.2.11.1412121539300.16494@nanos Link: http://lkml.kernel.org/r/20141214164104.307127356@goodmis.org Reviewed-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com> Suggested-by: Thomas Gleixner <tglx@linutronix.de> Tested-by: Thomas Gleixner <tglx@linutronix.de> Acked-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
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