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Subject: Re: [PATCH 2/8] v3 Add new phys_index properties
From: Dave Hansen <dave@linux.vnet.ibm.com>
To: Nathan Fontenot <nfont@austin.ibm.com>
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Date: Tue, 20 Jul 2010 12:10:04 -0700
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Cc: linux-mm@kvack.org, greg@kroah.com, linux-kernel@vger.kernel.org,
	KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>, linuxppc-dev@ozlabs.org
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On Tue, 2010-07-20 at 08:24 -0500, Nathan Fontenot wrote:
> Update the 'phys_index' properties of a memory block to include a
> 'start_phys_index' which is the same as the current 'phys_index' property.
> This also adds an 'end_phys_index' property to indicate the id of the
> last section in th memory block.
> 
> Patch updated to keep the name of the phys_index property instead of
> renaming it to start_phys_index.

KAME is right on this.  We should keep the old one if at all possible.  

The only other thing we might want to do is move 'phys_index' to
'start_phys_index', and make a new 'phys_index' that does a WARN_ONCE(),
gives a deprecated warning, then calls the new 'start_phys_index' code.

So, basically make the new, more clear name, but keep the old one for a
while and deprecate it.  Maybe we could get away with removing it in ten
years. :)

-- Dave