Hi Andrew, On 7/29/2023 1:24 AM, Andrew Morton wrote: > On Sat, 29 Jul 2023 00:13:54 +0800 Yin Fengwei <fengwei.yin@xxxxxxxxx> wrote: > >> In madvise_cold_or_pageout_pte_range() and madvise_free_pte_range(), >> folio_mapcount() is used to check whether the folio is shared. But it's >> not correct as folio_mapcount() returns total mapcount of large folio. >> >> Use folio_estimated_sharers() here as the estimated number is enough. > > What are the user-visible runtime effects of these changes? > > (and please try to avoid using the same Subject: for different patches) > Can you hold on these patches to mm-unstable? I think we need to wait for David's work on folio_maybe_mapped_shared() and redo the fix base on that. Thanks and sorry for the noise. Regards Yin, Fengwei
