linux-kernel - Re: [PATCH] Open Firmware device tree virtual filesystem

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Date:	Tue, 02 Jan 2007 10:11:40 -1000
From:	Mitch Bradley <wmb@...mworks.com>
To:	Benjamin Herrenschmidt <benh@...nel.crashing.org>
CC:	Segher Boessenkool <segher@...nel.crashing.org>,
	linux-kernel@...r.kernel.org, devel@...top.org,
	jengelh@...ux01.gwdg.de, David Miller <davem@...emloft.net>,
	jg@...top.org
Subject: Re: [PATCH] Open Firmware device tree virtual filesystem



> We could of course have the interface work either on a copy of the tree
> or on a real OF (though that means changing things like get_property on
> powerpc and fixing the gazillions of users) but I tend to think that
> working on a copy always is more efficient.
>
>   
The patch that I posted creates a copy in the virtual filesystem 
domain.  So the efficiency issue is moot.

The filesystem domain copy is smaller than the in-memory tree, as it 
omits a lot of unnecessary fields.

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