On Wed 01-06-16 17:06:09, zhouxianrong wrote: > > Why would you want to reuse a page about which you have no idea about > > its age compared to the LRU pages which would be mostly clean as well? > > I mean this needs a deep justification! > > reusing could not reuse page with page_mapcount > 0; it only reuse > a pure file page without mmap. only file pages producted by rw > syscall can be reuse; so no AF consideration for it and just use > active/inactive flag to distinguish. I am sorry but I do not follow. -- Michal Hocko SUSE Labs -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@xxxxxxxxx. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: <a href=mailto:"dont@xxxxxxxxx";> email@xxxxxxxxx </a>