[GIT PULL] io_uring updates for 5.18-rc1

[Jens Axboe <axboe@kernel.dk>]

Hi Linus,

io_uring updates for the 5.18-rc1 merge window. This pull request
contains:

- Fixes for current file position. Still doesn't have the f_pos_lock
  sorted, but it's a step in the right direction (Dylan)

- Tracing updates (Dylan, Stefan)

- Improvements to io-wq locking (Hao)

- Improvements for provided buffers (me, Pavel)

- Support for registered file descriptors (me, Xiaoguang)

- Support for ring messages (me)

- Poll improvements (me)

- Fix for fixed buffers and non-iterator reads/writes (me

- Support for NAPI on sockets (Olivier)

- Ring quiesce improvements (Usama)

- Misc fixes (Olivier, Pavel)

Will merge cleanly. Please pull!



The following changes since commit ffb217a13a2eaf6d5bd974fc83036a53ca69f1e2:

  Linux 5.17-rc7 (2022-03-06 14:28:31 -0800)

are available in the Git repository at:

  git://git.kernel.dk/linux-block.git tags/for-5.18/io_uring-2022-03-18

for you to fetch changes up to 5e929367468c8f97cd1ffb0417316cecfebef94b:

  io_uring: terminate manual loop iterator loop correctly for non-vecs (2022-03-18 11:42:48 -0600)

----------------------------------------------------------------
for-5.18/io_uring-2022-03-18

----------------------------------------------------------------
Dylan Yudaken (5):
      io_uring: remove duplicated calls to io_kiocb_ppos
      io_uring: update kiocb->ki_pos at execution time
      io_uring: do not recalculate ppos unnecessarily
      io_uring: documentation fixup
      io_uring: make tracing format consistent

Hao Xu (3):
      io-wq: decouple work_list protection from the big wqe->lock
      io-wq: reduce acct->lock crossing functions lock/unlock
      io-wq: use IO_WQ_ACCT_NR rather than hardcoded number

Jens Axboe (15):
      io_uring: add support for registering ring file descriptors
      io_uring: speedup provided buffer handling
      io_uring: add support for IORING_OP_MSG_RING command
      io_uring: retry early for reads if we can poll
      io_uring: ensure reads re-import for selected buffers
      io_uring: recycle provided buffers if request goes async
      io_uring: allow submissions to continue on error
      io_uring: remove duplicated member check for io_msg_ring_prep()
      io_uring: recycle apoll_poll entries
      io_uring: move req->poll_refs into previous struct hole
      io_uring: cache req->apoll->events in req->cflags
      io_uring: cache poll/double-poll state with a request flag
      io_uring: manage provided buffers strictly ordered
      io_uring: don't check unrelated req->open.how in accept request
      io_uring: terminate manual loop iterator loop correctly for non-vecs

Nathan Chancellor (1):
      io_uring: Fix use of uninitialized ret in io_eventfd_register()

Olivier Langlois (3):
      io_uring: Remove unneeded test in io_run_task_work_sig()
      io_uring: minor io_cqring_wait() optimization
      io_uring: Add support for napi_busy_poll

Pavel Begunkov (8):
      io_uring: normilise naming for fill_cqe*
      io_uring: refactor timeout cancellation cqe posting
      io_uring: extend provided buf return to fails
      io_uring: fix provided buffer return on failure for kiocb_done()
      io_uring: remove extra barrier for non-sqpoll iopoll
      io_uring: shuffle io_eventfd_signal() bits around
      io_uring: thin down io_commit_cqring()
      io_uring: fold evfd signalling under a slower path

Stefan Roesch (2):
      io-uring: add __fill_cqe function
      io-uring: Make tracepoints consistent.

Usama Arif (5):
      io_uring: remove trace for eventfd
      io_uring: avoid ring quiesce while registering/unregistering eventfd
      io_uring: avoid ring quiesce while registering async eventfd
      io_uring: avoid ring quiesce while registering restrictions and enabling rings
      io_uring: remove ring quiesce for io_uring_register

 fs/io-wq.c                      |  114 ++--
 fs/io_uring.c                   | 1251 ++++++++++++++++++++++++++++++---------
 include/linux/io_uring.h        |    5 +-
 include/trace/events/io_uring.h |  333 +++++------
 include/uapi/linux/io_uring.h   |   17 +-
 5 files changed, 1200 insertions(+), 520 deletions(-)

-- 
Jens Axboe