On Mon, Mar 15, 2021 at 08:07:46PM -0300, Jason Gunthorpe wrote:

So the goto unwind looks quite odd when this is open coded. At least
with the helpers you can read the init then uninit and go 'yah, OK,
this makes sense'

Still looks odd to me.  But this is your series and overall a major
improvements, so:

Reviewed-by: Christoph Hellwig <hch@lst.de>