UBIFS: Shrinking in place

[jpmv27@xxxxxxxxx (Martin Vuille)]

I need to shrink an existing UBIFS filesystem "in place" as a
prelude to shrinking the underlying UBI volume.

Back in 2010 (http://lists.infradead.org/pipermail/linux-mtd/2010-January/028667.html)
it was stated on this list that this is not supported.

Wondering whether anything has changed since then?

If still not supported, I would like to consider undertaking
that work, and I'm looking for some guidance how best to
approach it.

MV