Merge patch series "epoll changes for io_uring wait support"

Bring in the preparatory epoll changes for io_uring epoll support.

* patches from https://lore.kernel.org/r/20250219172552.1565603-1-axboe@kernel.dk:
  eventpoll: add epoll_sendevents() helper
  eventpoll: abstract out ep_try_send_events() helper
  eventpoll: abstract out parameter sanity checking

Link: https://lore.kernel.org/r/20250219172552.1565603-1-axboe@kernel.dk
Signed-off-by: Christian Brauner <brauner@kernel.org>