Hi, I am confused with what protects page->lru? Is it both zone->lru_lock or zone->lock? I can see it being protected either by lru_lock or lock. Are their any rules where to use lru_lock and where to use lock? I did google but couldn't find anything. Sorry if its already discusses elsewhere, but I couldn't locate any. - Rajesh -- 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>