linux-kernel - Re: [PATCH] UBI: Change the default percentage of reserved PEB

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Message-ID: <1340977901.3070.210.camel@sauron.fi.intel.com>
Date:	Fri, 29 Jun 2012 16:51:41 +0300
From:	Artem Bityutskiy <dedekind1@...il.com>
To:	Richard Genoud <richard.genoud@...il.com>
Cc:	linux-mtd@...ts.infradead.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] UBI: Change the default percentage of reserved PEB

On Fri, 2012-06-29 at 08:57 +0200, Richard Genoud wrote:
> The actual value (1%) is too low for actual NAND devices, a huge
> majority of device has 2% maximum bad blocks (SLC or MLC).
> (Actually it's 20 blocks on a 1024 blocks device, 40/2048...)
> 
> Signed-off-by: Richard Genoud <richard.genoud@...il.com>

Thanks. But I'd like to wait a bit - Shmulik's point is fair and the
current way UBI reserves PEBs is probably not the right thing to do. If
we are going to change it, I'd like to have this patch to go together
with that change. Just because it is better to change the default
behavior once, than 2 times, to possibly upset/surprise users less
times :-)

-- 
Best Regards,
Artem Bityutskiy

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