linux-kernel - Re: [PATCH RFC] rcu: Permit limiting of force_quiescent

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Message-ID: <1332055160.7291.7.camel@marge.simpson.net>
Date:	Sun, 18 Mar 2012 08:19:20 +0100
From:	Mike Galbraith <efault@....de>
To:	paulmck@...ux.vnet.ibm.com
Cc:	linux-kernel@...r.kernel.org, mingo@...e.hu, laijs@...fujitsu.com,
	dipankar@...ibm.com, akpm@...ux-foundation.org,
	mathieu.desnoyers@...icios.com, josh@...htriplett.org,
	niv@...ibm.com, tglx@...utronix.de, peterz@...radead.org,
	rostedt@...dmis.org, Valdis.Kletnieks@...edu, dhowells@...hat.com,
	eric.dumazet@...il.com, darren@...art.com, fweisbec@...il.com,
	sivanich@....com
Subject: Re: [PATCH RFC] rcu: Permit limiting of force_quiescent_state()
 latency

On Sat, 2012-03-17 at 17:57 +0100, Mike Galbraith wrote:

> So I bent it up a little, see below.

s/bent/busted.  FQS_MAX_CPU_VISIT < CPUs == deadlock.  Poo.

-Mike

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