Pull io_uring fixes from Jens Axboe:
"We still have a pending fix for a cancelation issue, but it's still
being investigated. In the meantime:
- Dead mm handling fix (Pavel)
- SQPOLL setup error handling (Pavel)
- Flush timeout sequence fix (Marcelo)
- Missing finish_wait() for one exit case"
* tag 'io_uring-5.11-2021-01-16' of git://git.kernel.dk/linux-block:
io_uring: ensure finish_wait() is always called in __io_uring_task_cancel()
io_uring: flush timeouts that should already have expired
io_uring: do sqo disable on install_fd error
io_uring: fix null-deref in io_disable_sqo_submit
io_uring: don't take files/mm for a dead task
io_uring: drop mm and files after task_work_run