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Message-ID: <1446034017.12536.60.camel@gmail.com>
Subject: Re: UBI/UBIFS: dealing with MLC's paired pages
From: Artem Bityutskiy <dedekind1@gmail.com>
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To: Boris Brezillon <boris.brezillon@free-electrons.com>, Richard Weinberger
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Cc: linux-mtd@lists.infradead.org, David Woodhouse <dwmw2@infradead.org>,
 Brian Norris <computersforpeace@gmail.com>, Andrea Scian
 <rnd4@dave-tech.it>, Qi Wang =?UTF-8?Q?=E7=8E=8B=E8=B5=B7?= "(qiwang)"
 <qiwang@micron.com>, Iwo Mergler <Iwo.Mergler@netcommwireless.com>, "Jeff
 Lauruhn (jlauruhn)" <jlauruhn@micron.com>
Date: Wed, 28 Oct 2015 14:06:57 +0200
In-Reply-To: <20150917152240.757c9e90@bbrezillon>
References: <20150917152240.757c9e90@bbrezillon>
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On Thu, 2015-09-17 at 15:22 +0200, Boris Brezillon wrote:
> 1/ do not skip any pages until we are asked to secure the data, and
>    then skip as much pages as needed to ensure nobody can ever
> corrupt
>    the data. With this approach you can loose a non negligible amount
>    of space. For example, with this paired pages scheme [1], if you
>    only write page on page 2 and want to secure your data, you'll
> have
>    to skip pages 3 to 8.

This sounds like a the right way to go to me.