On Sat, 28 Jul 2012, Joonsoo Kim wrote: > move_pages() syscall may return success in case that > do_move_page_to_node_array return positive value which means migration failed. Nope. It only means that the migration for some pages has failed. This may still be considered successful for the app if it moves 10000 pages and one failed. This patch would break the move_pages() syscall because an error code return from do_move_pages_to_node_array() will cause the status byte for each page move to not be updated anymore. Application will not be able to tell anymore which pages were successfully moved and which are not. -- 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>