mtd2block should not expand sparse loopback files

[Jörn Engel]

On Mon, 29 May 2006 08:29:03 -0500, Josh Boyer wrote:
> On 5/27/06, Johannes Niess <linux at johannes-niess.de> wrote:
> 
> >I guess that the "fill with 1's" flash strategy is taking its toll together
> >with the "Clean" markers. Can I switch that off? Using
> >"mkfs.jffs2 --no-cleanmarkers"  does not help, as does  --eraseblock=0.
> 
> No you can't switch it off.  The filesystem will add them itself.

For now.  I have a patch pending that removes the cleanmarker
generation from jffs2.  Still needs some polishing, though.

Basically, if the mtd can do implicit erase, like any RAM, disk or
file-based device, there is no point in the cleanmarkers and jffs2
doesn't write them.  There might be other cases where they can be
omitted at well.

Jörn

-- 
He who knows that enough is enough will always have enough.
-- Lao Tsu