Re: [PATCH tip/core/rcu 10/10] rcu: Account for rcu_all_qs() in cond_resched()

[Steven Rostedt]

On Sat, 2 Dec 2017 04:22:20 -0800
"Paul E. McKenney" <paulmck@xxxxxxxxxxxxxxxxxx> wrote:
 
> Because there are a few key places within RCU and rcutorture that need it.
> Without it, there are scenarios where the new cond_resched() never gets
> activated, and thus doesn't take effect.
> 
> The key point is that with this series in place, it should not be necessary
> to use cond_resched_rcu_qs() outside of kernel/rcu and kernel/torture.c.
> Which is a valuable step forward, right?

I'm guessing the tracepoint benchmark is another situation. It's only
existence is to benchmark tracepoints and should not be enabled on any
production system. Thus, I think reverting patch 6 (the one removing it
from the benchmark code) is the proper solution.

-- Steve