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Merge tag 'for-5.16/io_uring-2021-10-29' of git://git.kernel.dk/linux-block
Pull io_uring updates from Jens Axboe:
"Light on new features - basically just the hybrid mode support.
Outside of that it's just fixes, cleanups, and performance
improvements.
In detail:
- Add ring related information to the fdinfo output (Hao)
- Hybrid async mode (Hao)
- Support for batched issue on block (me)
- sqe error trace improvement (me)
- IOPOLL efficiency improvements (Pavel)
- submit state cleanups and improvements (Pavel)
- Completion side improvements (Pavel)
- Drain improvements (Pavel)
- Buffer selection cleanups (Pavel)
- Fixed file node improvements (Pavel)
- io-wq setup cancelation fix (Pavel)
- Various other performance improvements and cleanups (Pavel)
- Misc fixes (Arnd, Bixuan, Changcheng, Hao, me, Noah)"
* tag 'for-5.16/io_uring-2021-10-29' of git://git.kernel.dk/linux-block: (97 commits)
io-wq: remove worker to owner tw dependency
io_uring: harder fdinfo sq/cq ring iterating
io_uring: don't assign write hint in the read path
io_uring: clusterise ki_flags access in rw_prep
io_uring: kill unused param from io_file_supports_nowait
io_uring: clean up timeout async_data allocation
io_uring: don't try io-wq polling if not supported
io_uring: check if opcode needs poll first on arming
io_uring: clean iowq submit work cancellation
io_uring: clean io_wq_submit_work()'s main loop
io-wq: use helper for worker refcounting
io_uring: implement async hybrid mode for pollable requests
io_uring: Use ERR_CAST() instead of ERR_PTR(PTR_ERR())
io_uring: split logic of force_nonblock
io_uring: warning about unused-but-set parameter
io_uring: inform block layer of how many requests we are submitting
io_uring: simplify io_file_supports_nowait()
io_uring: combine REQ_F_NOWAIT_{READ,WRITE} flags
io_uring: arm poll for non-nowait files
fs/io_uring: Prioritise checking faster conditions first in io_write
...
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