Re: [PATCH 4/8] tracing/function: Introduce persistent trace option

On Mon, 2012-07-09 at 17:10 -0700, Anton Vorontsov wrote:

+static struct tracer_flags func_flags;

static void function_trace_call(unsigned long ip, unsigned long parent_ip) { @@ -97,6 +106,12 @@ function_trace_call(unsigned long ip, unsigned long parent_ip) disabled = atomic_inc_return(&data->disabled); if (likely(disabled == 1)) {

• /*
  

•  * So far tracing doesn't support multiple buffers, so
  

•  * we make an explicit call for now.
  

I'm working on it ;-)

-- Steve

•  */
  

• if (unlikely(func_flags.val & TRACE_FUNC_OPT_PSTORE))
  

• 	pstore_ftrace_call(ip, parent_ip);
  

  pc = preempt_count(); trace_function(tr, ip, parent_ip, flags, pc); }