[PATCH]Add JFFS2 eraseblock header support

[Jörn Engel]

On Tue, 20 September 2005 14:27:47 +0200, Jörn Engel wrote:
> On Tue, 20 September 2005 15:56:04 +0400, Artem B. Bityutskiy wrote:
> > 
> > 1. Write code which understands both cleanmarkers and EB headers.
> > 2. Test that old images are actually work well on new JFFS2.
> > 3. Implement 1:1. Remove cleanmarkers support as they are not needed
> > anymore.
> 
> Not quite.  He must:
> 1. Assume 1:1 mapping.  If people are not, that's a completely
>    seperate problem.
> 2. Write robust code that does not depend on EBH.  If the header is
>    missing, it should just create a new one and initialize its members
>    as best it can - e.g. taking the average erase count.
> 3. Not emit clean markers anymore - they are not needed.

Btw, most of the complexity in Zhao's code comes from the attempt to
be future-proof and all that.  If he simply tried to implement better
wear levelling, it would be half the effort.

Jörn

-- 
The cheapest, fastest and most reliable components of a computer
system are those that aren't there.
-- Gordon Bell, DEC labratories