On Thu, 14 Dec 2017, Christoph Hellwig wrote:
Hi all, this series adds a strategic lockdep_assert_held to __wake_up_common to ensure callers really do hold the wait_queue_head lock when calling the unlocked wake_up variants. It turns out epoll did not do this for a fairly common path (hit all the time by systemd during bootup), so the second patch fixed this instance as well.
I ran into these changes because of patch 1 getting rid of ep->lock. Is there any reason why this series was never picked up? Thanks, Davidlohr