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Subject: Re: jffs2 copy too long after mounting
From: Artem Bityutskiy <dedekind1@gmail.com>
To: hejianet <hejianet@linux.vnet.ibm.com>
Date: Mon, 12 Nov 2012 17:42:46 +0200
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On Fri, 2012-10-26 at 09:45 +0800, hejianet wrote:
> Sorry,maybe my question is long and bothering:(
> I try to make it more easily and clearly
> in jffs2_garbage_collect_deletion_dirent(),
> what does it mean, why in nand, we can't actually mark nodes obsolete
> pernamently
>     /* On a medium where we can't actually mark nodes obsolete
>        pernamently, such as NAND flash, ..... */

Because in NAND you cannot change the contents of a NAND page which has
already been written, because you have ECC for the data in the OOB. So
you cannot just mark a node as obsolete "in-place". In NOR you can do
this.

--=20
Best Regards,
Artem Bityutskiy

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