On Wed, Nov 24, 2010 at 09:42:09PM +0800, Peter Zijlstra wrote: > On Wed, 2010-11-24 at 21:20 +0800, Wu Fengguang wrote: > > > (jiffies - bdi->write_bandwidth_update_time < elapsed) > > > > this will be true if someone else has _done_ overlapped estimation, > > otherwise it will equal: > > > > jiffies - bdi->write_bandwidth_update_time == elapsed > > > > Sorry the comment needs updating. > > Right, but its racy as hell.. Yeah, for N concurrent dirtiers, plus the background flusher, only one is able to update write_bandwidth[_update_time].. -- 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
