linux-kernel - Re: [PATCH v2] mtd: cmdlinepart: fix the wrong partitions number when truncating occurs

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Message-ID: <20120825124249.6aab8f9e@halley>
Date:	Sat, 25 Aug 2012 12:42:49 +0300
From:	Shmulik Ladkani <shmulik.ladkani@...il.com>
To:	Huang Shijie <shijie8@...il.com>
Cc:	dwmw2@...radead.org, linux-mtd@...ts.infradead.org,
	linux-kernel@...r.kernel.org, dedekind1@...il.com
Subject: Re: [PATCH v2] mtd: cmdlinepart: fix the wrong partitions number
 when truncating occurs

On Sat, 25 Aug 2012 05:26:51 -0400 Huang Shijie <shijie8@...il.com> wrote:
> > The specified cmdline partitions might not be ordered (according to
> > start offset), so next partition specified after the truncated one might
> > define a partition at the beginning of the device, which is okay
> > (regardless the truncation of current partition).
> could you please give me an example of this specified cmdline?

Assume we have a 1GB(8Gb) nand chip:
  #gpmi-nand:1g@...m(rootfs),100m@0(boot),100m@...m(kernel)

I am used to explicitly specify size@...set for all my parts.

Obviously I won't define a partition above the device size... somewhat
hypothetical discussion here...

But your code will stop after creating 'rootfs' (and original code will
not create a single partition).

Is that what we want?

Or do we want to truncate 'rootfs', but still have the valid 'boot' and
'kerner' partitions?

Regards,
Shmulik
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