linux-kernel - Re: [PATCH tip/core/rcu 1/2] rcu: Add callback-free CPUs

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Message-ID: <CAFTL4hy+LkqBsuf7_eBg+cEPn7yTJx_imXsZ-hunF7Z_ZLBdog@mail.gmail.com>
Date:	Fri, 2 Nov 2012 22:21:07 +0100
From:	Frederic Weisbecker <fweisbec@...il.com>
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@...ymtl.ca, josh@...htriplett.org,
	niv@...ibm.com, tglx@...utronix.de, peterz@...radead.org,
	rostedt@...dmis.org, Valdis.Kletnieks@...edu, dhowells@...hat.com,
	edumazet@...gle.com, darren@...art.com, sbw@....edu,
	patches@...aro.org, joe.korty@...r.com,
	"Paul E. McKenney" <paul.mckenney@...aro.org>
Subject: Re: [PATCH tip/core/rcu 1/2] rcu: Add callback-free CPUs

2012/11/2 Paul E. McKenney <paulmck@...ux.vnet.ibm.com>:
> The no-callbacks CPU would execute its own callbacks only if the
> corresponding kthread happened to be executing on that CPU.
> If you wanted a given CPU to be completely free of callbacks,
> you would instead constrain the corresponding kthread to run
> elsewhere.

Ah ok, makes sense.

Thanks.
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