Re: [PATCH 7/5 v4] tracing: Make sure rcu_irq_enter() can work for trace_*_rcuidle() trace events

[Steven Rostedt <rostedt@goodmis.org>]

On Fri, 7 Apr 2017 15:41:17 -0400
Steven Rostedt <rostedt@goodmis.org> wrote:
 
>  #ifndef MODULE
> -#define __DECLARE_TRACE_RCU(name, proto, args, cond, data_proto, data_args)	\
> +#define __DECLARE_TRACE_RCU(name, proto, args, cond, data_proto, data_args) \
>  	static inline void trace_##name##_rcuidle(proto)		\
>  	{								\
>  		if (static_key_false(&__tracepoint_##name.key))		\
>  			__DO_TRACE(&__tracepoint_##name,		\
>  				TP_PROTO(data_proto),			\
>  				TP_ARGS(data_args),			\
> -				TP_CONDITION(cond),			\
> -				rcu_irq_enter_irqson(),			\
> -				rcu_irq_exit_irqson());			\
> +				TP_CONDITION(cond),1);			\

I'm going to update this patch to add a space before the 1.

>  	}
>  #else
>  #define __DECLARE_TRACE_RCU(name, proto, args, cond, data_proto, data_args)
> @@ -186,7 +189,7 @@ extern void syscall_unregfunc(void);
>  			__DO_TRACE(&__tracepoint_##name,		\
>  				TP_PROTO(data_proto),			\
>  				TP_ARGS(data_args),			\
> -				TP_CONDITION(cond),,);			\
> +				TP_CONDITION(cond),0);			\

And before the 0.

-- Steve

>  		if (IS_ENABLED(CONFIG_LOCKDEP) && (cond)) {		\
>  			rcu_read_lock_sched_notrace();			\
>  			rcu_dereference_sched(__tracepoint_##name.funcs);\