Commit a442e5e0 authored Jan 14, 2009 by Steven Rostedt Committed by Ingo Molnar Jan 21, 2009

trace: stop all recording to ring buffer on ftrace_dump



Impact: limit ftrace dump output

Currently ftrace_dump only calls ftrace_kill that is a fast way
to prevent the function tracer functions from being called (just sets
a flag and clears the function to call, nothing else). It is better
to also turn off any recording to the ring buffers as well.

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

parent faf6861e

kernel/trace/trace.c

+1 −0

Original line number	Original line	Diff line number	Diff line
	@@ -3770,6 +3770,7 @@ void ftrace_dump(void)
	dump_ran = 1;		dump_ran = 1;

	/* No turning back! */		/* No turning back! */
			tracing_off();
	ftrace_kill();		ftrace_kill();

	for_each_tracing_cpu(cpu) {		for_each_tracing_cpu(cpu) {