[PATCH-tip v7 02/15] locking/rwsem: Implement a new locking scheme

2017-10-18 Thread Waiman Long
The current way of using various reader, writer and waiting biases in the rwsem code are confusing and hard to understand. I have to reread the rwsem count guide in the rwsem-xadd.c file from time to time to remind myself how this whole thing works. It also makes the rwsem code harder to be

[PATCH-tip v7 02/15] locking/rwsem: Implement a new locking scheme

2017-10-18 Thread Waiman Long
The current way of using various reader, writer and waiting biases in the rwsem code are confusing and hard to understand. I have to reread the rwsem count guide in the rwsem-xadd.c file from time to time to remind myself how this whole thing works. It also makes the rwsem code harder to be