linux-kernel - Re: [PATCH tip/core/rcu 06/23] rcu: Break up rcu_gp

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Date:	Thu, 6 Sep 2012 13:30:56 -0700
From:	"Paul E. McKenney" <paulmck@...ux.vnet.ibm.com>
To:	Peter Zijlstra <peterz@...radead.org>
Cc:	Josh Triplett <josh@...htriplett.org>,
	linux-kernel@...r.kernel.org, mingo@...e.hu, laijs@...fujitsu.com,
	dipankar@...ibm.com, akpm@...ux-foundation.org,
	mathieu.desnoyers@...ymtl.ca, 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,
	sbw@....edu, patches@...aro.org
Subject: Re: [PATCH tip/core/rcu 06/23] rcu: Break up rcu_gp_kthread() into
 subfunctions

On Thu, Sep 06, 2012 at 09:09:01PM +0200, Peter Zijlstra wrote:
> On Thu, 2012-09-06 at 11:49 -0700, Josh Triplett wrote:
> > 
> > Huh, I thought GCC knew to not emit that warning unless it actually
> > found control flow reaching the end of the function; since the
> > infinite
> > loop has no break in it, you shouldn't need the return.  Annoying. 
> 
> tag the function with __noreturn

Ah, I will try that.

							Thanx, Paul

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