tree cdee5802117c2e78cf18df7fa524c7390d1bdb67
parent e58918ab9d4cd375f6d842e6d88cf4d7a55cbfcc
author Steven Rostedt <srostedt@redhat.com> 1227290378 -0500
committer Ingo Molnar <mingo@elte.hu> 1227437134 +0100

ftrace: add ftrace_off_permanent

Impact: add new API to disable all of ftrace on anomalies

It case of a serious anomaly being detected (like something caught by
lockdep) it is a good idea to disable all tracing immediately, without
grabing any locks.

This patch adds ftrace_off_permanent that disables the tracers, function
tracing and ring buffers without a way to enable them again. This should
only be used when something serious has been detected.

Signed-off-by: Steven Rostedt <srostedt@redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>