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Date:   Thu, 13 Apr 2017 11:48:30 +0200
From:   Peter Zijlstra <>
To:     "Paul E. McKenney" <>
Subject: Re: [PATCH tip/core/rcu 37/40] srcu: Create a tiny SRCU

On Wed, Apr 12, 2017 at 10:40:22AM -0700, Paul E. McKenney wrote:
> In response to automated complaints about modifications to SRCU
> increasing its size, this commit creates a tiny SRCU that is
> used in SMP=y && PREEMPT=n builds.

You mean SMP=n && PREEMPT=n, right?

config TINY_RCU
        default y if !PREEMPT && !SMP

> +config TINY_SRCU
> +	bool
> +	default y if TINY_RCU
> +	help
> +	  This option selects the single-CPU non-preemptible version of SRCU.

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