linux-kernel - Re: [RFC PATCH 5/6] implement per-cpu&per-domain state machine call

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Message-ID: <20120312233845.GJ2471@linux.vnet.ibm.com>
Date:	Mon, 12 Mar 2012 16:38:46 -0700
From:	"Paul E. McKenney" <paulmck@...ux.vnet.ibm.com>
To:	Peter Zijlstra <peterz@...radead.org>
Cc:	Lai Jiangshan <eag0628@...il.com>,
	Lai Jiangshan <laijs@...fujitsu.com>,
	linux-kernel@...r.kernel.org, mingo@...e.hu, dipankar@...ibm.com,
	akpm@...ux-foundation.org, mathieu.desnoyers@...ymtl.ca,
	josh@...htriplett.org, niv@...ibm.com, tglx@...utronix.de,
	rostedt@...dmis.org, Valdis.Kletnieks@...edu, dhowells@...hat.com,
	eric.dumazet@...il.com, darren@...art.com, fweisbec@...il.com,
	patches@...aro.org, tj@...nel.org
Subject: Re: [RFC PATCH 5/6] implement per-cpu&per-domain state machine
 call_srcu()

On Tue, Mar 13, 2012 at 12:18:39AM +0100, Peter Zijlstra wrote:
> On Mon, 2012-03-12 at 16:15 -0700, Paul E. McKenney wrote:
> > We need rcu_barrier() in order to be able to safely unload modules
> > that
> > use call_rcu(). 
> 
> Oh, right.. I always forget about modules. 

Lucky you!  ;-)

(Sorry, couldn't resist...)

							Thanx, Paul

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