[GIT PULL for-6.3] io_uring updates for 6.3

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Hi Linus,

Sending pull requests early, as I'm mostly out-of-town and unavailable
next week.

Here are the io_uring updates for the 6.3 merge window. Nothing really
major in here for this round. In detail:

- Cleanup series making the async prep and handling of REQ_F_FORCE_ASYNC
  easier to follow and verify (Dylan)

- Enable specifying specific flags for OP_MSG_RING (Breno)

- Enable use of KASAN with the internal request cache (Breno)

- Split the opcode definition structs into a hot and cold part (Breno)

- OP_MSG_RING fixes (Pavel, me)

- Fix an issue with IOPOLL cancelation and PREEMPT_NONE (me)

- Handle TIF_NOTIFY_RESUME for the io-wq threads that never return to
  userspace (me)

- Add support for using io_uring_register() with a registered ring fd
  (Josh)

- Improve handling of poll on the ring fd (Pavel)

- Series improving the task_work handling (Pavel)

- Misc cleanups, fixes, improvements (Dmitrii, Quanfa, Richard, Pavel, me)

Please pull!


The following changes since commit 6d796c50f84ca79f1722bb131799e5a5710c4700:

  Linux 6.2-rc6 (2023-01-29 13:59:43 -0800)

are available in the Git repository at:

  git://git.kernel.dk/linux.git tags/for-6.3/io_uring-2023-02-16

for you to fetch changes up to 7d3fd88d61a41016da01889f076fd1c60c7298fc:

  io_uring: Support calling io_uring_register with a registered ring fd (2023-02-16 06:09:30 -0700)

----------------------------------------------------------------
for-6.3/io_uring-2023-02-16

----------------------------------------------------------------
Breno Leitao (4):
      io_uring/msg_ring: Pass custom flags to the cqe
      io_uring: Rename struct io_op_def
      io_uring: Split io_issue_def struct
      io_uring: Enable KASAN for request cache

Dmitrii Bundin (1):
      io_uring: remove excessive unlikely on IS_ERR

Dylan Yudaken (4):
      io_uring: if a linked request has REQ_F_FORCE_ASYNC then run it async
      io_uring: for requests that require async, force it
      io_uring: always go async for unsupported fadvise flags
      io_uring: always go async for unsupported open flags

Jens Axboe (6):
      io_uring/msg-ring: ensure flags passing works for task_work completions
      io_uring: handle TIF_NOTIFY_RESUME when checking for task_work
      io_uring: pass in io_issue_def to io_assign_file()
      io_uring: add a conditional reschedule to the IOPOLL cancelation loop
      io_uring: add reschedule point to handle_tw_list()
      io_uring: mark task TASK_RUNNING before handling resume/task work

Josh Triplett (1):
      io_uring: Support calling io_uring_register with a registered ring fd

Pavel Begunkov (33):
      io_uring: rearrange defer list checks
      io_uring: don't iterate cq wait fast path
      io_uring: kill io_run_task_work_ctx
      io_uring: move defer tw task checks
      io_uring: parse check_cq out of wq waiting
      io_uring: mimimise io_cqring_wait_schedule
      io_uring: simplify io_has_work
      io_uring: set TASK_RUNNING right after schedule
      io_uring: optimise non-timeout waiting
      io_uring: keep timeout in io_wait_queue
      io_uring: move submitter_task out of cold cacheline
      io_uring: refactor io_wake_function
      io_uring: don't set TASK_RUNNING in local tw runner
      io_uring: mark io_run_local_work static
      io_uring: move io_run_local_work_locked
      io_uring: separate wq for ring polling
      io_uring: add lazy poll_wq activation
      io_uring: wake up optimisations
      io_uring: waitqueue-less cq waiting
      io_uring: add io_req_local_work_add wake fast path
      io_uring: optimise deferred tw execution
      io_uring: return back links tw run optimisation
      io_uring: don't export io_put_task()
      io_uring: simplify fallback execution
      io_uring: optimise ctx flags layout
      io_uring: refactor __io_req_complete_post
      io_uring: use user visible tail in io_uring_poll()
      io_uring: kill outdated comment about overflow flush
      io_uring: improve io_get_sqe
      io_uring: refactor req allocation
      io_uring: refactor io_put_task helpers
      io_uring: refactor tctx_task_work
      io_uring: return normal tw run linking optimisation

Quanfa Fu (1):
      io_uring: make io_sqpoll_wait_sq return void

Richard Guy Briggs (1):
      io_uring,audit: don't log IORING_OP_MADVISE

 include/linux/io_uring_types.h |  21 +-
 include/uapi/linux/io_uring.h  |   8 +-
 io_uring/advise.c              |  29 +--
 io_uring/fs.c                  |  20 +-
 io_uring/io_uring.c            | 474 +++++++++++++++++++++++++++--------------
 io_uring/io_uring.h            |  97 ++++-----
 io_uring/msg_ring.c            |  31 ++-
 io_uring/net.c                 |   4 +-
 io_uring/notif.c               |   3 +-
 io_uring/opdef.c               | 340 +++++++++++++++++++----------
 io_uring/opdef.h               |  13 +-
 io_uring/openclose.c           |  18 +-
 io_uring/poll.c                |   2 +-
 io_uring/rw.c                  |   4 +-
 io_uring/splice.c              |   7 +-
 io_uring/sqpoll.c              |   3 +-
 io_uring/sqpoll.h              |   2 +-
 io_uring/statx.c               |   4 +-
 io_uring/sync.c                |  14 +-
 io_uring/xattr.c               |  14 +-
 20 files changed, 699 insertions(+), 409 deletions(-)

-- 
Jens Axboe




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