linux-kernel - Re: [RFC][PATCH 0/7] UBI checkpointing support

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Message-ID: <4F587A28.6080205@linutronix.de>
Date:	Thu, 08 Mar 2012 10:21:44 +0100
From:	Richard Weinberger <rw@...utronix.de>
To:	Shmulik Ladkani <shmulik.ladkani@...il.com>
CC:	dedekind1@...il.com, tglx@...utronix.de,
	linux-mtd@...ts.infradead.org, linux-kernel@...r.kernel.org,
	tim.bird@...sony.com
Subject: Re: [RFC][PATCH 0/7] UBI checkpointing support

On 08.03.2012 08:08, Shmulik Ladkani wrote:
> But doesn't the CP data (sorry, UBIUBI data :) need to have one
> 'struct ubi_cp_ec' descriptor for each used/free PEB, and as such the
> maximum number of 'ubi_cp_ec' descriptors is total device PEBs, meaning
> CP data is still linearly scaled to device size (with a very small
> multiplier)?
>

It's UBIVIS data. :D

The size of the checkpoint depends on the number of free/used PEBs.
But in most cases the checkpoints fits into one or two PEBs.
Because larger devices have larger erase blocks...

Thanks,
//richard

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