On Wed, 03 Feb 2016, Ding Tianhong wrote:
Agree, but this patch is going to help the waiter in the wait list to get the lock, your scene probability looks more too low and I don't think it is a problem.
Sure, I was in fact implying its not the end of the world, although it will be interesting to see the impact on different (non pathological) workloads, even if it only affects a single waiter. Also, technically this issue can also affect rwsems if only using writers, but that's obviously pretty idiotic, so I wouldn't worry about it. Thanks, Davidlohr