Merge branch 'for-5.11/io_uring' into for-next

* for-5.11/io_uring: (22 commits)
  io_uring: only plug when appropriate
  io_uring: rearrange io_kiocb fields for better caching
  io_uring: link requests with singly linked list
  io_uring: track link timeout's master explicitly
  io_uring: track link's head and tail during submit
  io_uring: split poll and poll_remove structs
  io_uring: add support for IORING_OP_UNLINKAT
  io_uring: add support for IORING_OP_RENAMEAT
  fs: make do_renameat2() take struct filename
  io_uring: enable file table usage for SQPOLL rings
  io_uring: allow non-fixed files with SQPOLL
  io_uring: add support for shutdown(2)
  net: provide __sys_shutdown_sock() that takes a socket
  io_uring: allow SQPOLL with CAP_SYS_NICE privileges
  io_uring: use type appropriate io_kiocb handler for double poll
  io_uring: simplify __io_queue_sqe()
  io_uring: simplify nxt propagation in io_queue_sqe
  io_uring: don't miss setting IO_WQ_WORK_CONCURRENT
  io_uring: don't defer put of cancelled ltimeout
  io_uring: always clear LINK_TIMEOUT after cancel
  ...

diff --cc fs/io_uring.c
Simple merge

diff --cc fs/namei.c
Simple merge