linux-kernel - Re: [PATCH] x86: make use of inc/dec conditional

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Message-Id: <4A9795DC0200007800012068@vpn.id2.novell.com>
Date:	Fri, 28 Aug 2009 07:31:24 +0100
From:	"Jan Beulich" <JBeulich@...ell.com>
To:	"Tejun Heo" <tj@...nel.org>
Cc:	<mingo@...e.hu>, <tglx@...utronix.de>,
	<linux-kernel@...r.kernel.org>, "H. Peter Anvin" <hpa@...or.com>
Subject: Re: [PATCH] x86: make use of inc/dec conditional

>>> Tejun Heo <tj@...nel.org> 27.08.09 09:34 >>>
>For the percpu part, wouldn't it be better to have
>__builtin_contant_p() on the add/sub parameter, use inc/dec if the
>param is constant and 1 and make simple wrapper for inc/dec if still
>necessary?

Hmm, yes, I should give this a try.

Jan

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