[Yaffs] Re: [PATCH] treat OOB as a single chunk of oobavail bytes

Vitaly Wool vwool at ru.mvista.com
Sat Jan 28 09:19:57 GMT 2006


Hi Charles,

no it's not yet in CVS. I think I'll be able to commit it if we get any 
positive feedback on this patch (i. e. if it's actually working for 
anyone else than me :))
As for write_oobfree, it looks to be  useful for JFFSx to stop messing 
with oobinfos in JFFSx code.

Best regards,
   Vitaly

Charles Manning wrote:

>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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