2016-08-19 5:11 GMT+08:00 Waiman Long <Waiman.Long@xxxxxxx>: > When the count value is in between 0 and RWSEM_WAITING_BIAS, there > are 2 possibilities. > Either a writer is present and there is no waiter count = 0xffff0001 >or there are waiters and readers. There is no easy way to count = 0xffff000X However, RWSEM_WAITING_BIAS is equal to 0xffff0000, so both these two cases are beyond RWSEM_WAITING_BIAS, right? Regards, Wanpeng Li -- To unsubscribe from this list: send the line "unsubscribe linux-arch" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
