Merge tag 'io_uring-5.11-2021-01-10' of git://git.kernel.dk/linux-block

Pull io_uring fixes from Jens Axboe:
 "A bit larger than I had hoped at this point, but it's all changes that
  will be directed towards stable anyway. In detail:

   - Fix a merge window regression on error return (Matthew)

   - Remove useless variable declaration/assignment (Ye Bin)

   - IOPOLL fixes (Pavel)

   - Exit and cancelation fixes (Pavel)

   - fasync lockdep complaint fix (Pavel)

   - Ensure SQPOLL is synchronized with creator life time (Pavel)"

* tag 'io_uring-5.11-2021-01-10' of git://git.kernel.dk/linux-block:
  io_uring: stop SQPOLL submit on creator's death
  io_uring: add warn_once for io_uring_flush()
  io_uring: inline io_uring_attempt_task_drop()
  io_uring: io_rw_reissue lockdep annotations
  io_uring: synchronise ev_posted() with waitqueues
  io_uring: dont kill fasync under completion_lock
  io_uring: trigger eventfd for IOPOLL
  io_uring: Fix return value from alloc_fixed_file_ref_node
  io_uring: Delete useless variable ‘id’ in io_prep_async_work
  io_uring: cancel more aggressively in exit_work
  io_uring: drop file refs after task cancel
  io_uring: patch up IOPOLL overflow_flush sync
  io_uring: synchronise IOPOLL on task_submit fail

Author: torvalds