linux-kernel - Re: [PATCH 1/2] sched: INIT_PREEMPT

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Date:	Sat, 11 Jul 2009 11:32:42 +0200
From:	Peter Zijlstra <a.p.zijlstra@...llo.nl>
To:	Bjorn Helgaas <bjorn.helgaas@...com>
Cc:	linux-kernel@...r.kernel.org, linux-arch@...r.kernel.org,
	Linus Torvalds <torvalds@...ux-foundation.org>,
	Matt Mackall <mpm@...enic.com>,
	Anton Vorontsov <avorontsov@...mvista.com>,
	Andrew Morton <akpm@...ux-foundation.org>, oleg@...hat.com,
	mingo@...e.hu, tony.luck@...el.com, rth@...ddle.net,
	geert@...ux-m68k.org
Subject: Re: [PATCH 1/2] sched: INIT_PREEMPT_COUNT

On Fri, 2009-07-10 at 15:18 -0600, Bjorn Helgaas wrote:
> On Friday 10 July 2009 06:57:56 am Peter Zijlstra wrote:
> > +#define INIT_PREEMPT_COUNT     (1)
> 
> If the parentheses are useful or necessary, I need to be
> educated about why.  They look like superfluous paranoia to me.

They are strictly speaking superfluous, but since I already knew I'd be
adding a term I added them.

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