From mboxrd@z Thu Jan  1 00:00:00 1970
From: cgagneraud@techworks.ie (Christian Gagneraud)
Date: Sat, 03 Oct 2009 21:07:01 +0100
Subject: Sparsemem  on EP93XX
In-Reply-To: <20091003195426.GB21857@n2100.arm.linux.org.uk>
References: <4AC7A3D4.3080408@techworks.ie>	<20091003194155.GA21857@n2100.arm.linux.org.uk>	<4AC7AAAD.4000301@techworks.ie>
	<20091003195426.GB21857@n2100.arm.linux.org.uk>
Message-ID: <4AC7AEE5.5070707@techworks.ie>
To: linux-arm-kernel@lists.infradead.org
List-Id: linux-arm-kernel.lists.infradead.org

Russell King - ARM Linux wrote:
> On Sat, Oct 03, 2009 at 08:49:01PM +0100, Christian Gagneraud wrote:
>> # CONFIG_EXPERIMENTAL is not set
> ...
>> CONFIG_ARCH_HAS_HOLES_MEMORYMODEL=y
>> CONFIG_ARCH_SPARSEMEM_ENABLE=y
>> CONFIG_ARCH_SPARSEMEM_DEFAULT=y
>> # CONFIG_ARCH_SELECT_MEMORY_MODEL is not set
>> CONFIG_FLATMEM=y
>> CONFIG_FLAT_NODE_MEM_MAP=y
> 
> So yes, flatmem is still enabled... because there's a condition missing
> in mm/Kconfig.  Try this patch:
> 
> diff --git a/mm/Kconfig b/mm/Kconfig
> index 2477607..95b2965 100644
> --- a/mm/Kconfig
> +++ b/mm/Kconfig
> @@ -67,7 +67,7 @@ config DISCONTIGMEM
>  
>  config SPARSEMEM
>  	def_bool y
> -	depends on SPARSEMEM_MANUAL
> +	depends on (!SELECT_MEMORY_MODEL && ARCH_SPARSEMEM_ENABLE) || SPARSEMEM_MANUAL
>  
>  config FLATMEM
>  	def_bool y

Yeah!!! It works now! :)

Thank you very much!

Chris.

> 
> 
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