On Fri, 06 Sep 2013 21:22:15 +0900 Masami Hiramatsu <[email protected]> wrote:
> > And AFAICS, the tracepoint (on which the syscall tracer based) > call-site uses rcu_read_lock_sched_notrace() instead of rcu_read_lock(), > in that case, I think we should use synchronize_sched(). is that wrong? > Ah, no, you are correct. I was thinking that the tracepoints used rcu_read_lock(), but looking at the code, it's rcu_read_lock_sched(). Thus a synchronize_sched() *is* required. Thanks, and please ignore my other comments about using "synchronize_rcu()". -- Steve -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
