Re: [PATCH tip/core/rcu 03/23] rcu: Move RCU grace-period cleanupinto kthread

[Peter Zijlstra]

On Thu, 2012-08-30 at 11:18 -0700, Paul E. McKenney wrote:
>  static void rcu_report_qs_rsp(struct rcu_state *rsp, unsigned long flags)
>         __releases(rcu_get_root(rsp)->lock)
>  {
> +       raw_spin_unlock_irqrestore(&rcu_get_root(rsp)->lock, flags);
> +       wake_up(&rsp->gp_wq);  /* Memory barrier implied by wake_up() path. */
>  } 

Could you now also clean up the locking so that the caller releases this
lock?

I so dislike asymmetric locking like that..
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