> 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 from this list: send the line "unsubscribe linux-fsdevel" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html