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From: Valdis.Kletnieks@vt.edu
To: Peter Zijlstra <peterz@infradead.org>
Cc: akpm@linux-foundation.org, h-shimamoto@ct.jp.nec.com,
	joe@perches.com, mingo@elte.hu, nooiwa@miraclelinux.com,
	mm-commits@vger.kernel.org, LKML <linux-kernel@vger.kernel.org>
Subject: Re: [folded] kernelh-add-printk_ratelimited-and-pr_level_rl-rename.patch removed from -mm tree
Date: Tue, 15 Dec 2009 17:44:55 -0500	[thread overview]
Message-ID: <25197.1260917095@localhost> (raw)
In-Reply-To: Your message of "Tue, 15 Dec 2009 11:28:02 +0100." <1260872882.4165.353.camel@twins>

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On Tue, 15 Dec 2009 11:28:02 +0100, Peter Zijlstra said:
> On Mon, 2009-12-14 at 17:08 -0800, akpm@linux-foundation.org wrote:
> > s/_rl/_ratelimited/g
> 
> do we feel this pr_* wankery is worth the hassle? I'd as soon send a
> patch removing all this crap.

pr_foo() instead of printk(KERN_FOO) is probably worth the hassle, as it
allows more selective inclusion of messages if you're trying to build an
embedded kernel.  It's easy to say "I want pr_warning() to stay in, but
lower levels compile to nothing". Trying to keep a 'printk(KERN_WARNING'
while making a printk(KERN_DEBUG go away is just asking for some truly
astounding pre-processor gyrations.

Not an issue for my laptop with 4G of RAM - byt my cell phone says it has
26M of memory, 7M used (presumably all the software, my contact list isn't
*that* big).  No idea what the actual kernel is, but I know whatever it is,
the coders were using that kernel's equivalent of CONFIG_EMBEDDED and tossing
stuff over the side if they didn't need it. ;)



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  parent reply	other threads:[~2009-12-15 22:46 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <200912150108.nBF18TNx015047@imap1.linux-foundation.org>
2009-12-15 10:28 ` [folded] kernelh-add-printk_ratelimited-and-pr_level_rl-rename.patch removed from -mm tree Peter Zijlstra
2009-12-15 21:28   ` Andrew Morton
2009-12-15 22:44   ` Valdis.Kletnieks [this message]
2009-12-16 10:48     ` Peter Zijlstra

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