Re: yaffs2 NAND fs

From: Arnd Bergmann
Date: Tue Mar 02 2010 - 08:52:10 EST

On Tuesday 02 March 2010, Peter Paul wrote:
> I was wondering why the yaffs2 file system has not gone for mainline
> yet. It's rather popular flash file system in the embedded world, while
> it is rather easy to patch a kernel to have yaffs2 support [1] it would
> be even nicer if it was just in mainline.
> The source of the GPLv2 file system can be found at [2]
> [1]
> [2]

I would guess it's a combination of multiple reasons:

1. It has not been submitted for upstream inclusion, at least not
during the last few years.
2. We don't have a staging area like drivers/staging for file systems
in the way that we have for drivers
3. There is now ubifs and (soon) logfs upstream, both of which appear
to be superior to yaffs in many ways.

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