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 from this list: send the line "unsubscribe linux-fsdevel" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html