On Thu, Nov 08, 2018 at 12:07:01PM -0500, Mike Snitzer wrote: > Discussed doing that with Jens and reported as much here: > > https://www.redhat.com/archives/dm-devel/2018-November/msg00068.html > > And Jens gave additional context for why yet another attempt to switch > block core's in_flight to percpu counters is doomed (having already been > proposed and rejected twice): > > https://www.redhat.com/archives/dm-devel/2018-November/msg00071.html > > And yes, definitely should've cc'd linux-block (now added). So how is dm different from the the other 3 handful of drivers using the make_request interface that the per-cpu counters work for dm and not the others?
