Re: [RFC] introduce synchronize_sched_{enter,exit}()

From: Peter Zijlstra
Date: Mon Sep 30 2013 - 11:07:28 EST

On Mon, Sep 30, 2013 at 04:24:00PM +0200, Peter Zijlstra wrote:
> For that we'd have to decrement xxx->gp_count from cb_rcu_func(),
> wouldn't we?
> Without that there's no guarantee the fast path readers will have a MB
> to observe the write critical section, unless I'm completely missing
> something obviuos here.

Duh.. we should be looking at gp_state like Paul said.
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