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From: "Jörn Engel" <joern@logfs.org>
To: Alex Dubov <oakad@yahoo.com>
Cc: linux-mtd@lists.infradead.org
Subject: Re: Support of removable MTD devices and other advanced features (follow-up from lkml)
Date: Sat, 24 May 2008 19:56:48 +0200	[thread overview]
Message-ID: <20080524175647.GA7366@logfs.org> (raw)
In-Reply-To: <380082.38285.qm@web36708.mail.mud.yahoo.com>

On Sat, 24 May 2008 06:12:23 -0700, Alex Dubov wrote:
> 
> Do UBI and JFFS always operate in terms of whole eraseblocks or they may
> attempt  partial block writes? Different flash chips have different
> capabilities in regard to writing and this can be used to some advantage.

Writes happen in multiples of mtd->writesize.  Which for NAND is
pagesize.  There are also special cases with subpage writes.  AFAIK only
UBI exploits that feature.

Jörn

-- 
Joern's library part 15:
http://www.knosof.co.uk/cbook/accu06a.pdf

  reply	other threads:[~2008-05-24 17:57 UTC|newest]

Thread overview: 26+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2008-05-20 13:59 Support of removable MTD devices and other advanced features (follow-up from lkml) Alex Dubov
2008-05-21  6:47 ` Artem Bityutskiy
2008-05-21  8:41 ` Jörn Engel
2008-05-22  1:30   ` Alex Dubov
2008-05-22 15:10     ` Jörn Engel
2008-05-23  2:47       ` Alex Dubov
2008-05-23  5:50         ` Jörn Engel
2008-05-23  9:33           ` Alex Dubov
2008-05-23  9:59             ` Jörn Engel
2008-05-23 12:49               ` Alex Dubov
2008-05-23 13:28                 ` Jörn Engel
2008-05-24 13:12                   ` Alex Dubov
2008-05-24 17:56                     ` Jörn Engel [this message]
2008-05-25  3:41                       ` Alex Dubov
2008-05-25  7:25                         ` Jörn Engel
2008-05-25 13:30                           ` Jamie Lokier
2008-05-25 16:24                             ` Jörn Engel
2008-05-25 16:35                               ` Jamie Lokier
2008-05-25 16:55                                 ` Jörn Engel
2008-05-26  2:12                           ` Alex Dubov
2008-05-21  9:06 ` David Woodhouse
2008-05-21  9:29   ` Jörn Engel
2008-05-21 15:20     ` Alex Dubov
2008-05-21 15:22       ` David Woodhouse
2008-05-21 15:41         ` Alex Dubov
2008-05-21 20:45           ` Jörn Engel

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