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>
This commit is contained in:
Steven Rostedt 2009-01-14 14:50:19 -05:00 committed by Ingo Molnar
parent 6f3b34402e
commit 0ee6b6cf5b

View File

@ -3110,6 +3110,7 @@ void ftrace_dump(void)
dump_ran = 1;
/* No turning back! */
tracing_off();
ftrace_kill();
for_each_tracing_cpu(cpu) {