Hi Linus,
Various fixes and changes for io_uring that should go into the 6.13
merge window. This pull request contains:
- Remove a leftover struct from when the cqwait registered waiting was
transitioned to regions.
- Fix for an issue introduced in this merge window, where nop->fd might
be used uninitialized. Ensure it's always set.
- Add capping of the task_work run in local task_work mode, to prevent
bursty and long chains from adding too much latency.
- Work around xa_store() leaving ->head non-NULL if it encounters an
allocation error during storing. Just a debug trigger, and can go away
once xa_store() behaves in a more expected way for this condition. Not
a major thing as it basically requires fault injection to trigger it.
- Fix a few mapping corner cases
- Fix KCSAN complaint on reading the table size post unlock. Again not a
"real" issue, but it's easy to silence by just keeping the reading
inside the lock that protects it.
Please pull!
The following changes since commit a652958888fb1ada3e4f6b548576c2d2c1b60d66:
io_uring/region: fix error codes after failed vmap (2024-11-17 09:01:35 -0700)
are available in the Git repository at:
git://git.kernel.dk/linux.git tags/io_uring-6.13-20242901
for you to fetch changes up to 7eb75ce7527129d7f1fee6951566af409a37a1c4:
io_uring/tctx: work around xa_store() allocation error issue (2024-11-29 07:20:28 -0700)
----------------------------------------------------------------
io_uring-6.13-20242901
----------------------------------------------------------------
Dan Carpenter (1):
io_uring/region: return negative -E2BIG in io_create_region()
David Wei (2):
io_uring: add io_local_work_pending()
io_uring: limit local tw done
Jens Axboe (3):
io_uring/nop: ensure nop->fd is always initialized
io_uring: fix task_work cap overshooting
io_uring/tctx: work around xa_store() allocation error issue
Pavel Begunkov (4):
io_uring: remove io_uring_cqwait_reg_arg
io_uring: protect register tracing
io_uring: check for overflows in io_pin_pages
io_uring: fix corner case forgetting to vunmap
include/linux/io_uring_types.h | 1 +
include/uapi/linux/io_uring.h | 14 --------
io_uring/io_uring.c | 75 ++++++++++++++++++++++++++++--------------
io_uring/io_uring.h | 9 +++--
io_uring/memmap.c | 13 ++++++--
io_uring/nop.c | 6 +++-
io_uring/register.c | 3 +-
io_uring/tctx.c | 13 +++++++-
8 files changed, 87 insertions(+), 47 deletions(-)
--
Jens Axboe
