linux-kernel - Re: [RFC PATCH 1/4] mm: move memtest under /mm

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Date:	Mon, 02 Mar 2015 17:52:00 -0800
From:	Randy Dunlap <rdunlap@...radead.org>
To:	Vladimir Murzin <vladimir.murzin@....com>,
	linux-kernel@...r.kernel.org, linux-mm@...ck.org,
	linux-arch@...r.kernel.org, x86@...nel.org,
	linux-arm-kernel@...ts.infradead.org
CC:	tglx@...utronix.de, mingo@...hat.com, hpa@...or.com,
	akpm@...ux-foundation.org, lauraa@...eaurora.org,
	catalin.marinas@....com, will.deacon@....com,
	linux@....linux.org.uk, arnd@...db.de, mark.rutland@....com,
	ard.biesheuvel@...aro.org
Subject: Re: [RFC PATCH 1/4] mm: move memtest under /mm

On 03/02/15 06:55, Vladimir Murzin wrote:
> There is nothing platform dependent in the core memtest code, so other platform
> might benefit of this feature too.
> 
> Signed-off-by: Vladimir Murzin <vladimir.murzin@....com>
> ---
>  arch/x86/Kconfig            |   11 ----
>  arch/x86/include/asm/e820.h |    8 ---
>  arch/x86/mm/Makefile        |    2 -
>  arch/x86/mm/memtest.c       |  118 -------------------------------------------
>  include/linux/memblock.h    |    8 +++
>  lib/Kconfig.debug           |   11 ++++
>  mm/Makefile                 |    1 +
>  mm/memtest.c                |  118 +++++++++++++++++++++++++++++++++++++++++++
>  8 files changed, 138 insertions(+), 139 deletions(-)
>  delete mode 100644 arch/x86/mm/memtest.c
>  create mode 100644 mm/memtest.c

> diff --git a/lib/Kconfig.debug b/lib/Kconfig.debug
> index c5cefb3..8eb064fd 100644
> --- a/lib/Kconfig.debug
> +++ b/lib/Kconfig.debug
> @@ -1732,6 +1732,17 @@ config TEST_UDELAY
>  
>  	  If unsure, say N.
>  
> +config MEMTEST
> +	bool "Memtest"
> +	---help---
> +	  This option adds a kernel parameter 'memtest', which allows memtest
> +	  to be set.
> +	        memtest=0, mean disabled; -- default
> +	        memtest=1, mean do 1 test pattern;
> +	        ...
> +	        memtest=4, mean do 4 test patterns.

This sort of implies a max of 4 test patterns, but it seems to be 17
if I counted correctly, so if someone wants to test all of the possible
'memtest' patterns, they would need to use 'memtest=17', is that correct?


> +	  If you are unsure how to answer this question, answer N.

Thanks,
-- 
~Randy
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