linux-kernel - Re: UBI fastmap updates

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Date:	Thu, 02 Aug 2012 21:15:52 +0300
From:	Artem Bityutskiy <artem.bityutskiy@...ux.intel.com>
To:	Richard Weinberger <richard@....at>
Cc:	Tim Bird <tim.bird@...sony.com>,
	"linux-mtd@...ts.infradead.org" <linux-mtd@...ts.infradead.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"adrian.hunter@...el.com" <adrian.hunter@...el.com>,
	"Heinz.Egger@...utronix.de" <Heinz.Egger@...utronix.de>,
	"thomas.wucher@...utronix.de" <thomas.wucher@...utronix.de>,
	"shmulik.ladkani@...il.com" <shmulik.ladkani@...il.com>,
	"tglx@...utronix.de" <tglx@...utronix.de>,
	"Marius.Mazarel@...l.ro" <Marius.Mazarel@...l.ro>,
	"nyoushchenko@...sta.com" <nyoushchenko@...sta.com>
Subject: Re: UBI fastmap updates

On Thu, 2012-08-02 at 20:03 +0200, Richard Weinberger wrote:
> > If I understand correctly, fastmap size is a function of total PEBs
> > count. You should be able to calculate the maximum size precisely.
> 
> It does.
> I was thinking of 2 x sizeof(fastmap) to have reserved PEBs for the
> currently used fastmap and PEBs for the new to be installed fastmap.

Up to you. If you are fine with the overhead, you can go for 2x, I do
not have objections. But would be nice to include the overhead numbers
when you submit the patches. Also print on initialization.

-- 
Best Regards,
Artem Bityutskiy

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