Re: remove dead bdi congestion leftovers

On Wed, Jul 01 2020 at  5:06am -0400,
Christoph Hellwig [off-list ref] wrote:

Hi Jens,

we have a lot of bdi congestion related code that is left around without
any use.  This series removes it in preparation of sorting out the bdi
lifetime rules properly.

I could do some git archeology to see what the fs, mm and block core
changes were to stop using bdi congested but a pointer to associated
changes (or quick recap) would save me some time.

Also, curious to know how back-pressure should be felt back up the IO
stack now? (apologies if these are well worn topics, I haven't been
tracking this area of development).

Thanks,
Mike