On Tue 16-10-18 18:48:23, John Hubbard wrote: [...] > It's hard to say exactly what the active/inactive/unevictable list should > be when DMA is done and put_user_page*() is called, because we don't know > if some device read, wrote, or ignored any of those pages. Although if > put_user_pages_dirty() is called, that's an argument for "active", at least. Any reason to not use putback_lru_page? Please note I haven't really got through your patches to have a wider picture of the change so this is just hint for the LRU part of the issue. -- Michal Hocko SUSE Labs
