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ftrace: Pass ftrace_ops as third parameter to function trace callback

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Currently the function trace callback receives only the ip and parent_ip
of the function that it traced. It would be more powerful to also return
the ops that registered the function as well. This allows the same function
to act differently depending on what ftrace_ops registered it.

Link: http://lkml.kernel.org/r/20120612225424.267254552@goodmis.org

Reviewed-by: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
This commit is contained in:
Steven Rostedt 2011-08-08 16:57:47 -04:00 • committed by Steven Rostedt
parent 6e0f17be03
commit 2f5f6ad939
11 changed files with 113 additions and 46 deletions
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2
kernel/trace/trace_sched_wakeup.c
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@ -108,7 +108,7 @@ out_enable:
* wakeup uses its own tracer function to keep the overhead down:
*/
static void
wakeup_tracer_call(unsigned long ip, unsigned long parent_ip)
wakeup_tracer_call(unsigned long ip, unsigned long parent_ip, struct ftrace_ops *op)
{
struct trace_array *tr = wakeup_trace;
struct trace_array_cpu *data;