Re: [PATCH v2 0/5] locking/rwsem: Rework reader optimistic spinning

From: Peter Zijlstra
Date: Tue Dec 08 2020 - 09:58:31 EST


On Fri, Nov 20, 2020 at 11:14:11PM -0500, Waiman Long wrote:
> Waiman Long (5):
> locking/rwsem: Pass the current atomic count to
> rwsem_down_read_slowpath()
> locking/rwsem: Prevent potential lock starvation
> locking/rwsem: Enable reader optimistic lock stealing
> locking/rwsem: Wake up all waiting readers if RWSEM_WAKE_READ_OWNED
> locking/rwsem: Remove reader optimistic spinning

So I've munged the lot onto the other rwsem patches and skipped #4, I've
not even boot tested them (will go do so shortly).

git://git.kernel.org/pub/scm/linux/kernel/git/peterz/queue.git locking/core