[Yaffs] Re: yaffs Digest, Vol 8, Issue 20

[yuri.golovach at mindspeed.com]

Hi Charles.

Have you tried this patch? Because I've recieved kernel panic error when 
I'm trying to mount yaffs2 filesystem throught read_oobfree (I changed 
read_oob on read_oobfree in the yaffs_mtdif2.c).

Thank you,
        Yuri Golovach




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Today's Topics:

   1. Re: [PATCH] treat OOB as a single chunk of oobavail bytes
      (Charles Manning)


----------------------------------------------------------------------

Message: 1
Date: Fri, 27 Jan 2006 11:26:23 +1300
From: Charles Manning <manningc2 at actrix.gen.nz>
Subject: [Yaffs] Re: [PATCH] treat OOB as a single chunk of oobavail
                 bytes
To: linux-mtd at lists.infradead.org, yaffs at stoneboat.aleph1.co.uk
Cc: yuri.golovach at mindspeed.com, Vitaly Wool <vwool at ru.mvista.com>
Message-ID: <200601271126.23808.manningc2 at actrix.gen.nz>
Content-Type: text/plain;  charset="iso-8859-1"

On Friday 27 January 2006 01:51, Vitaly Wool wrote:
> Hi Yuri,
>
> well, lemme just summarize what you hafta do in order to make YAFFS2
> work with my patches.
>
> 1. Apply the following patch to the mtd code:
> http://lists.infradead.org/pipermail/linux-mtd/2005-December/014648.html
> (yes, it's a single patch!)
> 2. Modify the fs/yaffs2/yaffs_mtdif2.c to use read_oobfree/write_oobfree
> where appropriate.
>
> Hope that helps,
>
>    Vitaly

Hi Vitaly

Is this in CVS yet? If not, I hope it will be there soon.

>From what I see, this is going to be just what we need.

YAFFS2 does not need to write_oobfree as a seperate function (it is always 

written as a single page write). YAFFS2 only needs read_oobfree.

However, YAFFS1 could use the write_oobfree function at some future date 
if 
YAFFS1 gets moved to this interface to remove the current reliance on 
hanging 
the ugly ECC parameter stuff through the interface.

I am pretty busy right now, but will try get the YAFFS2 side sorted ASAP. 
If 
the YAFFS2 stuff is CVSed before the mtd then I'll just point people to 
this 
patch.

Thanx!

Charles



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