linux-kernel - Re: [PATCH 5/9] v4 Allow memory_block to span multiple memory sections

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Message-Id: <20100805135531.498625ab.kamezawa.hiroyu@jp.fujitsu.com>
Date:	Thu, 5 Aug 2010 13:55:31 +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@...abs.org, Greg KH <greg@...ah.com>,
	Dave Hansen <dave@...ux.vnet.ibm.com>
Subject: Re: [PATCH 5/9] v4  Allow memory_block to span multiple memory
 sections

On Tue, 03 Aug 2010 08:40:49 -0500
Nathan Fontenot <nfont@...tin.ibm.com> wrote:

> Update the memory sysfs code that each sysfs memory directory is now
> considered a memory block that can contain 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.
> 
> Signed-off-by: Nathan Fontenot <nfont@...tin.ibm.com>

Acked-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@...fujitsu.com>
(But maybe it's better to get ppc guy's Ack.)


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