Hi Linus,
Quieter week this time, which was both expected and desired. About half
of the below is fixes for this release, the other half are just fixes in
general. In detail:
- Fix the freezing of IO threads, by making the freezer not send them
fake signals. Make them freezable by default.
- Like we did for personalities, move the buffer IDR to xarray. Kills
some code and avoids a use-after-free on teardown.
- SQPOLL cleanups and fixes (Pavel)
- Fix linked timeout race (Pavel)
- Fix potential completion post use-after-free (Pavel)
- Cleanup and move internal structures outside of general kernel view
(Stefan)
- Use MSG_SIGNAL for send/recv from io_uring (Stefan)
Please pull!
The following changes since commit 58f99373834151e1ca7edc49bc5578d9d40db099:
io_uring: fix OP_ASYNC_CANCEL across tasks (2021-03-12 09:42:56 -0700)
are available in the Git repository at:
git://git.kernel.dk/linux-block.git tags/io_uring-5.12-2021-03-19
for you to fetch changes up to de75a3d3f5a14c9ab3c4883de3471d3c92a8ee78:
io_uring: don't leak creds on SQO attach error (2021-03-18 09:44:35 -0600)
----------------------------------------------------------------
io_uring-5.12-2021-03-19
----------------------------------------------------------------
Jens Axboe (3):
kernel: freezer should treat PF_IO_WORKER like PF_KTHREAD for freezing
io_uring: allow IO worker threads to be frozen
io_uring: convert io_buffer_idr to XArray
Pavel Begunkov (8):
io_uring: fix ->flags races by linked timeouts
io_uring: fix complete_post use ctx after free
io_uring: replace sqd rw_semaphore with mutex
io_uring: halt SQO submission on ctx exit
io_uring: fix concurrent parking
io_uring: add generic callback_head helpers
io_uring: fix sqpoll cancellation via task_work
io_uring: don't leak creds on SQO attach error
Stefan Metzmacher (3):
io_uring: imply MSG_NOSIGNAL for send[msg]()/recv[msg]() calls
io_uring: remove structures from include/linux/io_uring.h
io_uring: use typesafe pointers in io_uring_task
fs/io-wq.c | 6 +-
fs/io-wq.h | 10 ++-
fs/io_uring.c | 228 ++++++++++++++++++++++++++---------------------
include/linux/io_uring.h | 25 ------
kernel/fork.c | 1 -
kernel/freezer.c | 2 +-
6 files changed, 142 insertions(+), 130 deletions(-)
--
Jens Axboe
