tree 1852fb096d1f45a6d826480b41f9d7eb292c4e8a
parent bcd83ea6cbfee54e33d1527b87538dc99ca2137b
author Steven Rostedt <srostedt@redhat.com> 1349453587 -0400
committer Steven Rostedt <rostedt@goodmis.org> 1351716324 -0400

tracing: Allow tracers to start at core initcall

There's times during debugging that it is helpful to see traces of early
boot functions. But the tracers are initialized at device_initcall()
which is quite late during the boot process. Setting the kernel command
line parameter ftrace=function will not show anything until the function
tracer is initialized. This prevents being able to trace functions before
device_initcall().

There's no reason that the tracers need to be initialized so late in the
boot process. Move them up to core_initcall() as they still need to come
after early_initcall() which initializes the tracing buffers.

Cc: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>