linux-kernel - Re: [PATCH V2 0/3] Introduce and use DO

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Message-Id: <1242970756.3284.18.camel@Joe-Laptop.home>
Date:	Thu, 21 May 2009 22:39:16 -0700
From:	Joe Perches <joe@...ches.com>
To:	Al Viro <viro@...IV.linux.org.uk>
Cc:	linux-kernel@...r.kernel.org, cpufreq@...r.kernel.org,
	Dave Jones <davej@...hat.com>,
	Greg Kroah-Hartman <gregkh@...e.de>,
	"H. Peter Anvin" <hpa@...or.com>, Ingo Molnar <mingo@...hat.com>,
	x86@...nel.org, Len Brown <len.brown@...el.com>,
	Mike Travis <travis@....com>,
	Rusty Russell <rusty@...tcorp.com.au>,
	Thomas Gleixner <tglx@...utronix.de>,
	Venkatesh Pallipadi <venkatesh.pallipadi@...el.com>,
	Alan Cox <alan@...rguk.ukuu.org.uk>
Subject: Re: [PATCH V2 0/3] Introduce and use DO_ONCE statement expression
 macro

On Fri, 2009-05-22 at 06:26 +0100, Al Viro wrote:
> Your DO_ONCE(....) parses as "what the fuck is that?" followed by
> grepping for definition, and the cost is much higher.

So what do you suggest?

#define pr_info_once(fmt, args...)	printk_once(KERN_INFO pr_fmt(fmt), ##args)
#define pr_warning_once(fmt, args...)	printk_once(KERN_WARNING pr_fmt(fmt), ##args)
etc


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