[GIT PULL] io_uring fixes for 6.16-rc4

[Jens Axboe <axboe@kernel.dk>]

Hi Linus,

Set of fixes for io_uring that should go into the 6.16 kernel release.
This pull request contains:

- Two tweaks for a recent fix: fixing a memory leak if multiple iovecs
  were initially mapped but only the first was used and hence turned
  into a UBUF rathan than an IOVEC iterator, and catching a case where a
  retry would be done even if the previous segment wasn't full.

- Small series fixing an issue making the vm unhappy if debugging is
  turned on, hitting a VM_BUG_ON_PAGE().

- Fix a resource leak in io_import_dmabuf() in the error handling case,
  which is a regression in this merge window.

- Mark fallocate as needing to be write serialized, as is already done
  for truncate and buffered writes.

Please pull!


The following changes since commit 51a4598ad5d9eb6be4ec9ba65bbfdf0ac302eb2e:

  io_uring/net: always use current transfer count for buffer put (2025-06-20 08:33:45 -0600)

are available in the Git repository at:

  git://git.kernel.dk/linux.git tags/io_uring-6.16-20250626

for you to fetch changes up to 178b8ff66ff827c41b4fa105e9aabb99a0b5c537:

  io_uring/kbuf: flag partial buffer mappings (2025-06-26 12:17:48 -0600)

----------------------------------------------------------------
io_uring-6.16-20250626

----------------------------------------------------------------
Fengnan Chang (1):
      io_uring: make fallocate be hashed work

Jens Axboe (2):
      io_uring/net: mark iov as dynamically allocated even for single segments
      io_uring/kbuf: flag partial buffer mappings

Pavel Begunkov (3):
      io_uring/rsrc: fix folio unpinning
      io_uring/rsrc: don't rely on user vaddr alignment
      io_uring: don't assume uaddr alignment in io_vec_fill_bvec

Penglei Jiang (1):
      io_uring: fix resource leak in io_import_dmabuf()

 io_uring/kbuf.c  |  1 +
 io_uring/kbuf.h  |  3 ++-
 io_uring/net.c   | 34 +++++++++++++++++++++-------------
 io_uring/opdef.c |  1 +
 io_uring/rsrc.c  | 30 ++++++++++++++++++++++--------
 io_uring/rsrc.h  |  1 +
 io_uring/zcrx.c  |  6 ++++--
 7 files changed, 52 insertions(+), 24 deletions(-)

-- 
Jens Axboe