linux-kernel - Re: [PATCH v2] mm/debug_pagealloc: Ask users for default setting of debug

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Date:	Mon, 25 Jan 2016 16:03:24 +0100
From:	Paul Bolle <pebolle@...cali.nl>
To:	Christian Borntraeger <borntraeger@...ibm.com>
Cc:	peterz@...radead.org, heiko.carstens@...ibm.com,
	akpm@...ux-foundation.org, linux-mm@...ck.org,
	linux-arch@...r.kernel.org, Joonsoo Kim <iamjoonsoo.kim@....com>,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2] mm/debug_pagealloc: Ask users for default setting of
 debug_pagealloc

On ma, 2016-01-25 at 12:15 +0100, Christian Borntraeger wrote:
> --- a/mm/Kconfig.debug
> +++ b/mm/Kconfig.debug

> +config DEBUG_PAGEALLOC_ENABLE_DEFAULT
> +	bool "Enable debug page memory allocations by default?"
> +        default off

Nit: you apparently meant
	default n

Note that "default off" should also evaluate to "n", which probably
explains why you didn't notice. And "n" is the default anyhow.

So I'm guessing you might as well drop this line.

> +        depends on DEBUG_PAGEALLOC
> +        ---help---
> +	  Enable debug page memory allocations by default? This value
> +	  can be overridden by debug_pagealloc=off|on.
> +
> +	  If unsure say no.

(Really trivial: you start indentation both with spaces and with tabs.
Start with tabs, please.)


Paul Bolle