Hi Vitaly,
Vitaly Wool wrote:
> Frank,
>
> On 11/29/06, Frank Mandarino <fmandarino@endrelia.com> wrote:
>> I noticed that mounts slowed down considerably on my system which uses
>> 512 byte NAND last week when I upgraded to Linux 2.6.19-rc6.
>>
>> I believe the attached patch fixes the situation. The yaffs_mtdif.c
>> translate_oob2spare() function was added to deal with recent MTD rework,
>> but it doesn't modify the spare ecc1 and ecc2 fields, so they end up
>> with garbage values when the structure is returned to
>> yaffs_TagsCompatabilityReadChunkWithTagsFromNAND().
>>
>> yaffs_TagsCompatabilityReadChunkWithTagsFromNAND() then compares spare
>> to a buffer of 0xff's to see if the chunk is used, and the comparison
>> always indicates that the chunk is in use, even if the nand flash was
>> just erased.
>
> cool! Thanks a lot for your patch, I think this really is it!
>
> Charles/Wookey, mind to apply it?
>
> Thanks,
> Vitaly
You're very welcome. Thanks for all your hard work on Yaffs.
Regards,
../fam
--
Frank Mandarino fmandarino(a)endrelia.com
Endrelia Technologies Inc.
Toronto, Ontario, Canada
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