Re: mkfs.jffs2 min erase block size: 4 vs 8 KiB

[Artem Bityutskiy <dedekind1@gmail.com>]

On Fri, 2011-06-24 at 15:23 -0400, Mike Frysinger wrote:
> > Yes, the other way is to teach JFFS2 to merge PEBs and work with
> > multiple of PEBs. In fact in the past it could do this, but that was
> > removed because of some issues, do not remember what.
> >
> > The only complication I see is bad blocks. When you merge PEBs and one
> > of them is bad, then the good PEBs which are in this merge should be
> > treated as bad as well. But this should not be very difficult to do.
> >
> > On the one hand, teaching JFFS2 deal with small PEBs seems to make more
> > sense, on the other hand, doing this on driver level has an advantage -
> > you do not have to modify the file-system and you automatically make UBI
> > benefit from this - UBI scan time goes down when eraseblocks become
> > larger.
> 
> this is way above my familiarity with the code base.  i'll just post
> patches to update the docs.

Fair enough - ones who really need to solve this issue can work on it -
no need to do that if you do not really need this now.

-- 
Best Regards,
Artem Bityutskiy (Битюцкий Артём)