On Tue, May 17, 2016 at 09:26:21PM -0400, Waiman Long wrote: > As rwsem_down_read_failed() will queue itself and potentially call > __rwsem_do_wake(sem, RWSEM_WAKE_ANY), it is possible that a reader > will try to wake up its own task. This patch adds a check to make > sure that this won't happen. >
Yes, this is 'weird', but why are we fixing it at the cost of an extra branch?
