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Date: Thu, 31 Oct 2013 13:52:00 -0400
From: Brian Norris <computersforpeace@gmail.com>
To: Ezequiel Garcia <ezequiel.garcia@free-electrons.com>
Subject: Re: [PATCH] mtd: nand_bbt: kill NAND_BBT_SCANALLPAGES
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On Thu, Oct 31, 2013 at 12:32:43PM -0300, Ezequiel Garcia wrote:
> But do we have any mechanism to scan a *particular*
> page?

No. But if we need it, we can develop a proper one. For instance, I
think a properly flexible approach could involve some kind of bitmap,
where each bit represents a particular page (e.g., a 32-bit bitmap where
the first 16 bits represent the first 16 pages and the last 16 represent
the last 16 pages).

I think, though, that modern NAND are converging to only a few types of
bad block marker locations, and our currently available flags (without
SCANALLPAGES) are sufficient.

Brian