On Thu, Jan 11, 2024 at 08:24:51PM +0800, Zhiguo Jiang wrote: > The values of struct scan_control's members obtained by > prepare_scan_control() are always from root_mem_cgroup, rather than > the memcg where the shrinked folio is actually located, such as > sc->anon_cost, sc->file_cost, sc->may_deactivate and so on. This is > an inaccurate sc values for the actual situation of the current > shrinking memcg. so we need fix the values of struct scan_control's > members are corresponding to the current shrinking memcg. You don't seem to understand how cgroup reclaim works. Nacked-by: Johannes Weiner <hannes@xxxxxxxxxxx>
