Michal, Can you give me your Acked-by on this and patch 22? I'm still waiting of a few arch maintainers before I can push these up to my for-next branch. -- Steve On Thu, 26 Jun 2014 12:52:27 -0400 Steven Rostedt <rostedt@xxxxxxxxxxx> wrote: > From: "Steven Rostedt (Red Hat)" <rostedt@xxxxxxxxxxx> > > ftrace_stop() is going away as it disables parts of function tracing > that affects users that should not be affected. But ftrace_graph_stop() > is built on ftrace_stop(). Here's another example of killing all of > function tracing because something went wrong with function graph > tracing. > > Instead of disabling all users of function tracing on function graph > error, disable only function graph tracing. To do this, the arch code > must call ftrace_graph_is_dead() before it implements function graph. > > Cc: Michal Simek <monstr@xxxxxxxxx> > Signed-off-by: Steven Rostedt <rostedt@xxxxxxxxxxx> > --- > arch/microblaze/kernel/ftrace.c | 3 +++ > 1 file changed, 3 insertions(+) > > diff --git a/arch/microblaze/kernel/ftrace.c b/arch/microblaze/kernel/ftrace.c > index bbcd2533766c..fc7b48a52cd5 100644 > --- a/arch/microblaze/kernel/ftrace.c > +++ b/arch/microblaze/kernel/ftrace.c > @@ -27,6 +27,9 @@ void prepare_ftrace_return(unsigned long *parent, unsigned long self_addr) > unsigned long return_hooker = (unsigned long) > &return_to_handler; > > + if (unlikely(ftrace_graph_is_dead())) > + return; > + > if (unlikely(atomic_read(¤t->tracing_graph_pause))) > return; > -- To unsubscribe from this list: send the line "unsubscribe linux-arch" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
