[GIT PULL] io_uring fixes for 6.19-rc4

[Jens Axboe <axboe@kernel.dk>]

Hi Linus,

Happy New Year! Here are a few fixes for io_uring that should go into
the 6.19 kernel release. This pull request contains:

- Removed dead argument length for io_uring_validate_mmap_request()

- Use GFP_NOWAIT for overflow CQEs on legacy ring setups rather than
  GFP_ATOMIC, which makes it play nicer with memcg limits.

- Fix a potential circular locking issue with tctx node removal and
  exec based cancelations.

Please pull!


The following changes since commit b14fad555302a2104948feaff70503b64c80ac01:

  io_uring: fix filename leak in __io_openat_prep() (2025-12-25 07:58:33 -0700)

are available in the Git repository at:

  https://git.kernel.org/pub/scm/linux/kernel/git/axboe/linux.git tags/io_uring-6.19-20260102

for you to fetch changes up to 70eafc743016b1df73e00fd726ffedd44ce1bdd3:

  io_uring/memmap: drop unused sz param in io_uring_validate_mmap_request() (2026-01-01 08:16:48 -0700)

----------------------------------------------------------------
io_uring-6.19-20260102

----------------------------------------------------------------
Alexandre Negrel (1):
      io_uring: use GFP_NOWAIT for overflow CQEs on legacy rings

Caleb Sander Mateos (1):
      io_uring/memmap: drop unused sz param in io_uring_validate_mmap_request()

Jens Axboe (1):
      io_uring/tctx: add separate lock for list of tctx's in ctx

 include/linux/io_uring_types.h | 8 +++++++-
 io_uring/cancel.c              | 5 +++++
 io_uring/io_uring.c            | 7 ++++++-
 io_uring/memmap.c              | 9 ++++-----
 io_uring/register.c            | 2 ++
 io_uring/tctx.c                | 8 ++++----
 6 files changed, 28 insertions(+), 11 deletions(-)

-- 
Jens Axboe