On Fri, 2011-06-17 at 11:01 -0700, Linus Torvalds wrote: > So I do think that "page_referenced_anon()" should do a trylock, and > return "referenced" if the trylock fails. Comments? The only problem I can immediately see with that is when a single process' anon memory is dominant, then such an allocation will never succeed in freeing these pages because the one lock will pin pretty much all anon. Then again, there's always a few file pages to drop. That said, its rather unlikely, and iirc people were working on removing direct reclaim, or at least rely less on it. -- 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/ . Fight unfair telecom internet charges in Canada: sign http://stopthemeter.ca/ Don't email: <a href=mailto:"dont@xxxxxxxxx";> email@xxxxxxxxx </a>