tree 894c84bdec4c716b1e16c60e2ab2a1ab198ac11d
parent a4feb8348b62fe76a63cdb5569f5c920f5283c06
author Steven Rostedt <rostedt@goodmis.org> 1210620062 +0200
committer Thomas Gleixner <tglx@linutronix.de> 1211572894 +0200

ftrace: use raw_smp_processor_id for mcount functions

Due to debug hooks in the kernel that can change the way smp_processor_id
works, use raw_smp_processor_id in mcount called functions (namely
ftrace_record_ip). Currently we annotate most debug functions from calling
mcount, but we should not rely on that to prevent kernel lockups.

This patch uses the raw_smp_processor_id to prevent a recusive crash
that can happen if a debug hook in smp_processor_id calls mcount.

Signed-off-by: Steven Rostedt <srostedt@redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>