[RFC 0/3] improvements for poll requests

[Xiaoguang Wang <xiaoguang.wang@xxxxxxxxxxxxxxxxx>]

This patchset tries to improve echo_server model based on io_uring's
IORING_POLL_ADD_MULTI feature.

Xiaoguang Wang (3):
  io_uring: reduce frequent add_wait_queue() overhead for multi-shot
    poll request
  io_uring: don't get completion_lock in io_poll_rewait()
  io_uring: try to batch poll request completion

 fs/io_uring.c | 116 ++++++++++++++++++++++++++++++++++++++++++++++------------
 1 file changed, 92 insertions(+), 24 deletions(-)

-- 
2.14.4.44.g2045bb6