On Wed, Jul 01 2020 at 5:06am -0400, Christoph Hellwig <hch@xxxxxx> 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
