On Thu, Jul 06, 2017 at 09:28:58AM +0200, Ingo Molnar wrote: > It's more straightforward to just do the canonical sem->count >= 0 test that we do > elsewhere in the rwsem-spinlock code. > > PeterZ, what's your preference? Leave it as is.. it doesn't matter (the 0 case shouldn't happen) and as you say >= 0 is what most other code does.