[GIT PULL] io_uring fixes for 5.11-rc1

[Jens Axboe <axboe@kernel.dk>]

Hi Linus,

Fixes that should go into 5.11-rc1. All straight fixes, or a prep patch
for a fix, either bound for stable or fixing issues from this merge
window. In particular:

- Fix new shutdown op not breaking links on failure

- Hold mm->mmap_sem for mm->locked_vm manipulation

- Various cancelation fixes (me, Pavel)

- Fix error path potential double ctx free (Pavel)

- IOPOLL fixes (Xiaoguang)

Please pull!

 
The following changes since commit 009bd55dfcc857d8b00a5bbb17a8db060317af6f:

  Merge tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma (2020-12-16 13:42:26 -0800)

are available in the Git repository at:

  git://git.kernel.dk/linux-block.git tags/io_uring-5.11-2020-12-23

for you to fetch changes up to c07e6719511e77c4b289f62bfe96423eb6ea061d:

  io_uring: hold uring_lock while completing failed polled io in io_wq_submit_work() (2020-12-22 17:14:53 -0700)

----------------------------------------------------------------
io_uring-5.11-2020-12-23

----------------------------------------------------------------
Jens Axboe (4):
      io_uring: break links on shutdown failure
      io_uring: hold mmap_sem for mm->locked_vm manipulation
      io_uring: make ctx cancel on exit targeted to actual ctx
      io-wq: kill now unused io_wq_cancel_all()

Pavel Begunkov (11):
      io_uring: cancel reqs shouldn't kill overflow list
      io_uring: remove racy overflow list fast checks
      io_uring: consolidate CQ nr events calculation
      io_uring: inline io_cqring_mark_overflow()
      io_uring: limit {io|sq}poll submit locking scope
      io_uring: close a small race gap for files cancel
      io_uring: fix 0-iov read buffer select
      io_uring: always progress task_work on task cancel
      io_uring: end waiting before task cancel attempts
      io_uring: fix ignoring xa_store errors
      io_uring: fix double io_uring free

Xiaoguang Wang (2):
      io_uring: fix io_wqe->work_list corruption
      io_uring: hold uring_lock while completing failed polled io in io_wq_submit_work()

 fs/io-wq.c    |  30 +--------
 fs/io-wq.h    |   3 +-
 fs/io_uring.c | 210 +++++++++++++++++++++++++++++++++-------------------------
 3 files changed, 120 insertions(+), 123 deletions(-)

-- 
Jens Axboe