Re: [PATCH] rcu: Is it safe to enter an RCU read-side criticalsection?

From: Steven Rostedt
Date: Fri Sep 06 2013 - 12:52:45 EST


On Fri, 6 Sep 2013 18:40:18 +0200
Frederic Weisbecker <fweisbec@xxxxxxxxx> wrote:

> > I can't use plain preempt_disable() in function tracing.
> >
> > Also, since it's a misnomer to say the cpu is idle in NO_HZ_FULL when
> > we are coming from userspace, can we rename that?
> >
> > Perhaps we can also have a __rcu_is_cpu_tracking() (or whatever), with
> > the "__" appended that does not do the preempt disable.
>
> rcu_is_cpu_eqs() is probably better. It refers to other related "eqs" naming
> in RCU APIs.

But that will just confuse the heck out of people. When I see "eqs" I
equate that with "equals". What does the rcu cpu equal?

-- Steve
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