Message-ID: <50200096.1070002@nod.at>
Date: Mon, 06 Aug 2012 19:36:22 +0200
From: Richard Weinberger <richard@nod.at>
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To: artem.bityutskiy@linux.intel.com
CC: linux-mtd@lists.infradead.org, linux-kernel@vger.kernel.org,
        adrian.hunter@intel.com, Heinz.Egger@linutronix.de,
        thomas.wucher@linutronix.de, shmulik.ladkani@gmail.com,
        tglx@linutronix.de, tim.bird@am.sony.com, Marius.Mazarel@ugal.ro,
        nyoushchenko@mvista.com
Subject: Re: UBI fastmap updates
References: <1341836323-43916-1-git-send-email-richard@nod.at> <1343919530.25013.116.camel@sauron.fi.intel.com>
In-Reply-To: <1343919530.25013.116.camel@sauron.fi.intel.com>
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Am 02.08.2012 16:58, schrieb Artem Bityutskiy:
> On Mon, 2012-07-09 at 14:18 +0200, Richard Weinberger wrote:
>> This is the next round of UBI fastmap updates.
>> It fixes all issues pointed out by Shmulik. :-)
>=20
> Hi Richard,
>=20
> when I try to attach mtdram (NOR flash), UBI fails:

Fastmap works fine with mtdram and NOR flash.
But if your MTD device has less than UBI_FM_MAX_START (64) PEBs
ubi_io_is_bad() will trigger.
The fix is to disable Fastmap if you have not enough PEBs.

I think we enable fastmap only if a MTD device has more than
UBI_FM_MAX_START*2 PEBs.
Any comments?

Thanks,
//richard


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