linux-kernel - Re: [PATCH 4/9] v3 Allow memory blocks to span multiple memory sections

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Message-Id: <20101005141325.81c61dec.kamezawa.hiroyu@jp.fujitsu.com>
Date:	Tue, 5 Oct 2010 14:13:25 +0900
From:	KAMEZAWA Hiroyuki <kamezawa.hiroyu@...fujitsu.com>
To:	Nathan Fontenot <nfont@...tin.ibm.com>
Cc:	linux-kernel@...r.kernel.org, linux-mm@...ck.org,
	linuxppc-dev@...ts.ozlabs.org, Greg KH <greg@...ah.com>,
	Dave Hansen <dave@...ux.vnet.ibm.com>,
	Robin Holt <holt@....com>, steiner@....com
Subject: Re: [PATCH 4/9] v3 Allow memory blocks to span multiple memory
 sections

On Fri, 01 Oct 2010 14:00:50 -0500
Nathan Fontenot <nfont@...tin.ibm.com> wrote:

> Update the memory sysfs code such that each sysfs memory directory is now
> considered a memory block that can span multiple memory sections per
> memory block.  The default size of each memory block is SECTION_SIZE_BITS
> to maintain the current behavior of having a single memory section per
> memory block (i.e. one sysfs directory per memory section).
> 
> For architectures that want to have memory blocks span multiple
> memory sections they need only define their own memory_block_size_bytes()
> routine.
> 
This should be commented in code before MEMORY_BLOCK_SIZE declaration.

> Signed-off-by: Nathan Fontenot <nfont@...tin.ibm.com>
> 

Reviewed-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@...fujitsu.com>




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