On Wed, Sep 29, 2021 at 11:09:09AM +0100, Mel Gorman wrote: > This is a series that removes all calls to congestion_wait > in mm/ and deletes wait_iff_congested. It's not a clever > implementation but congestion_wait has been broken for a long time > (https://lore.kernel.org/linux-mm/45d8b7a6-8548-65f5-cccf-9f451d4ae3d4@xxxxxxxxx/). > Even if it worked, it was never a great idea. While excessive > dirty/writeback pages at the tail of the LRU is one possibility that > reclaim may be slow, there is also the problem of too many pages being > isolated and reclaim failing for other reasons (elevated references, > too many pages isolated, excessive LRU contention etc). > Don't send series after taking time off. This is the completely wrong set of patches, it's v1 again, sorry. I'll fix up a v3. -- Mel Gorman SUSE Labs