[GIT PULL] io_uring followup updates for 6.2-rc1

[Jens Axboe <axboe@kernel.dk>]

Hi Linus,

As mentioned, here are the followup changes for io_uring. This branch
only exists to avoid the poll related conflicts that would've otherwise
arised without the split.

This pull request contains:

- Misc fixes (me, Lin)

- Series from Pavel extending the single task exclusive ring mode,
  yielding nice improvements for the common case of having a single ring
  per thread (Pavel)

- Cleanup for MSG_RING, removing our IOPOLL hack (Pavel)

- Further poll cleanups and fixes (Pavel)

- Misc cleanups and fixes (Pavel)

Please pull!


The following changes since commit b7b275e60bcd5f89771e865a8239325f86d9927d:

  Linux 6.1-rc7 (2022-11-27 13:31:48 -0800)

are available in the Git repository at:

  git://git.kernel.dk/linux.git tags/for-6.2/io_uring-next-2022-12-08

for you to fetch changes up to 761c61c15903db41343532882b0443addb8c2faf:

  io_uring/msg_ring: flag target ring as having task_work, if needed (2022-12-08 09:36:02 -0700)

----------------------------------------------------------------
for-6.2/io_uring-next-2022-12-08

----------------------------------------------------------------
Jens Axboe (2):
      Merge branch 'for-6.2/io_uring' into for-6.2/io_uring-next
      io_uring/msg_ring: flag target ring as having task_work, if needed

Lin Ma (2):
      io_uring/poll: remove outdated comments of caching
      io_uring: update outdated comment of callbacks

Pavel Begunkov (21):
      io_uring: kill io_poll_issue's PF_EXITING check
      io_uring: carve io_poll_check_events fast path
      io_uring: remove ctx variable in io_poll_check_events
      io_uring: improve poll warning handling
      io_uring: combine poll tw handlers
      io_uring: don't raw spin unlock to match cq_lock
      io_uring: improve rsrc quiesce refs checks
      io_uring: don't reinstall quiesce node for each tw
      io_uring: reshuffle issue_flags
      io_uring: dont remove file from msg_ring reqs
      io_uring: improve io_double_lock_ctx fail handling
      io_uring: skip overflow CQE posting for dying ring
      io_uring: don't check overflow flush failures
      io_uring: complete all requests in task context
      io_uring: force multishot CQEs into task context
      io_uring: use tw for putting rsrc
      io_uring: never run tw and fallback in parallel
      io_uring: get rid of double locking
      io_uring: extract a io_msg_install_complete helper
      io_uring: do msg_ring in target task via tw
      io_uring: skip spinlocking for ->task_complete

 include/linux/io_uring.h       |  13 +--
 include/linux/io_uring_types.h |   3 +
 io_uring/io_uring.c            | 167 ++++++++++++++++++++++-----------
 io_uring/io_uring.h            |  15 ++-
 io_uring/msg_ring.c            | 164 ++++++++++++++++++++++----------
 io_uring/msg_ring.h            |   1 +
 io_uring/net.c                 |  21 +++++
 io_uring/opdef.c               |   8 ++
 io_uring/opdef.h               |   2 +
 io_uring/poll.c                |  98 +++++++++----------
 io_uring/rsrc.c                |  72 ++++++++------
 io_uring/rsrc.h                |   1 +
 12 files changed, 369 insertions(+), 196 deletions(-)

-- 
Jens Axboe