On Thu, 16 Apr 2020 19:00:22 +0300 "Kirill A. Shutemov" <kirill.shutemov@xxxxxxxxxxxxxxx> wrote: > __collapse_huge_page_isolate() may fail due to extra pin in the LRU add > pagevec. It's pretty common for swapin case: we swap in pages just to > fail due to the extra pin. > > Drain LRU add pagevec on successful swapin. I don't see how this patch can do anything to prevent __collapse_huge_page_isolate() from failing, which is what the changelog implies. Can we have a more detailed changelog, please?
