On Thu 05-01-17 13:30:10, Khalid Aziz wrote: [...] > It is very tempting to restrict tags to PAGE_SIZE granularity since it makes > code noticeably simpler and that is indeed going to be the majority of > cases. Sooner or later somebody would want to use multiple tags per page > though. I didn't get to read the patch throughly yet but I am really confused by this statement. The api is mprotect based which makes it ineherently PAGE_SIZE granular. How do you want to achieve cache line granularity with this API? And I would really vote for simplicity first... Subpage granularity sounds way too tricky... -- 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>