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Date: Mon, 28 Nov 2005 13:15:27 +0300
From: "Artem B. Bityutskiy" <dedekind@yandex.ru>
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Cc: linux-mtd@lists.infradead.org, "Zhao, Forrest" <forrest.zhao@intel.com>
Subject: Re: The problem that I didn't think out
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Ferenc Havasi wrote:
> Be that as it may I have a NAND question, I think you know the answer 
> (NAND Guru Artem :) ):
> - if there is and erase block aready fulled, is there any possibility to 
> mark its pages as obsolated (individually)? Is it allowed to write to 
> OOB (or data) area one more? (or write OOB later than the data... or 
> similar trick?)

Yes, but this depends on NAND type. In the worst case, you may write at 
least once there. In case of some NANDs - more.

Note, JFFS2 writes clean marker to OOB area of the first page of a newly 
erased eraseblock. But it doesn't prohibit JFFS2 to write to this page 
later, and store ECC in OOB, even though this OOB already contains some 
data (the clean marker).


-- 
Best Regards,
Artem B. Bityutskiy,
St.-Petersburg, Russia.