On Wed, Jul 01, 2020 at 12:41:03PM -0400, Mike Snitzer wrote: > 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). It isn't. Jens declared the implementation was broken, and broke it more. So we're just living with stupid broken timeouts.
