> This looks all inherently racy (which doesn't matter much as you suggest) > so I just wanted to suggest that if you used per-cpu counters you'd get > race-free and faster code at the cost of larger data structures and using > percpu_counter_add() instead of ++ (which doesn't seem like a big > complication to me). No problem. I'll switch to per-cpu counters in next post. Thanks, Fengguang -- 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>