linux-kernel - Re: UBI fastmap updates

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Message-ID: <1345210884.27859.90.camel@sauron.fi.intel.com>
Date:	Fri, 17 Aug 2012 16:41:24 +0300
From:	Artem Bityutskiy <artem.bityutskiy@...ux.intel.com>
To:	Richard Weinberger <richard@....at>
Cc:	nyoushchenko@...sta.com, linux-mtd@...ts.infradead.org,
	linux-kernel@...r.kernel.org, adrian.hunter@...el.com,
	Heinz.Egger@...utronix.de, thomas.wucher@...utronix.de,
	shmulik.ladkani@...il.com, tglx@...utronix.de,
	tim.bird@...sony.com, Marius.Mazarel@...l.ro
Subject: Re: UBI fastmap updates

On Fri, 2012-08-17 at 15:33 +0200, Richard Weinberger wrote:
> Am Fri, 17 Aug 2012 16:11:55 +0300
> schrieb Artem Bityutskiy <artem.bityutskiy@...ux.intel.com>:
> > We do not do anything like this in UBI because UBI does not need this,
> > it does not have any complex data structures on the media.
> > 
> > With fastmap - I am unsure. I think it is not a problem, because
> > probably you never append more data, you just re-write everything,
> > right?
> 
> Yep, the on-flash fastmap is immutable.

Here the question is - if you have PEB containing fastmap data,
half-filled. Will you ever add more data there to the empty space in the
PEB or not?

-- 
Best Regards,
Artem Bityutskiy

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