On Mon, 22 Mar 2010, Johannes Weiner wrote: > Migration happens on the fly as well, you can just hide it better for > cases like mremap(), which is unaffected by the actual entries it copies. No it does not happen on the fly. It happens only when you can account for all references that current exist for the page to be migrated. Then you change all the references at once. The mechanism ensures that there is no one else operating on the page. -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@xxxxxxxxxx For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: <a href=mailto:"dont@xxxxxxxxx";> email@xxxxxxxxx </a>