[PATCH 6.18.y 0/9] io_uring fixes for 6.18-stable

[Jens Axboe <axboe@kernel.dk>]

Hi Greg,

Here are io_uring fixes for 6.18-stable. They were waiting on the
io_uring pull for 7.4-rc, which Linus has now merged.

They apply on top of v6.18.62 with the current queue-6.18 applied
(stable-queue 0ae08d01c389). They don't depend on anything in the queue,
and apply to v6.18.62 alone as well.

The io_uring series I sent earlier this week is already in v6.18.62,
these go on top of that.

Please take patches 1-3 together. Patch 2 closes a race that patch 1
opens up, and patch 3 fixes a WARN_ON_ONCE() that patch 2 introduces on
SQPOLL thread exit.

Patches 1 and 9 needed changes to apply to 6.18, the [axboe: ...] note
at the end of each says what was changed.

Chris Mason (1):
  io_uring/cancel: drop sqd->lock while SQPOLL waits

Jens Axboe (3):
  io_uring/sqpoll: don't attach to a thread that is canceling
  io_uring/poll: don't poll a writer for a read side hangup
  io_uring/poll: don't poll a writer for urgent data

Shakeel Butt (1):
  io_uring/sqpoll: do the return-to-userspace work in the SQPOLL thread

Shang En Sim (2):
  io_uring/cancel: count all requests that a CANCEL_ALL cancels
  io_uring/poll: cancel all matching requests in one pass

Shuai Liu (1):
  io_uring/sqpoll: don't set IO_SQ_THREAD_SHOULD_STOP on thread exit

Yuansheng Yang (1):
  io_uring/rsrc: hold uring_lock across index-alloc put_user

 io_uring/cancel.c | 26 ++++++++++++++++++--
 io_uring/poll.c   | 62 +++++++++++++++++++++++++++++++++++++++++------
 io_uring/rsrc.c   | 21 ++++++++++++----
 io_uring/sqpoll.c | 26 +++++++++++++++++++-
 4 files changed, 120 insertions(+), 15 deletions(-)

-- 
2.56.0