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/openbmc/linux/io_uring/ |
H A D | io_uring.h | 44f87745 Thu Oct 06 15:42:33 CDT 2022 Pavel Begunkov <asml.silence@gmail.com> io_uring: optimise locking for local tw with submit_wait
Running local task_work requires taking uring_lock, for submit + wait we can try to run them right after submit while we still hold the lock and save one lock/unlokc pair. The optimisation was implemented in the first local tw patches but got dropped for simplicity.
Suggested-by: Dylan Yudaken <dylany@fb.com> Signed-off-by: Pavel Begunkov <asml.silence@gmail.com> Link: https://lore.kernel.org/r/281fc79d98b5d91fe4778c5137a17a2ab4693e5c.1665088876.git.asml.silence@gmail.com Signed-off-by: Jens Axboe <axboe@kernel.dk>
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H A D | io_uring.c | 44f87745 Thu Oct 06 15:42:33 CDT 2022 Pavel Begunkov <asml.silence@gmail.com> io_uring: optimise locking for local tw with submit_wait
Running local task_work requires taking uring_lock, for submit + wait we can try to run them right after submit while we still hold the lock and save one lock/unlokc pair. The optimisation was implemented in the first local tw patches but got dropped for simplicity.
Suggested-by: Dylan Yudaken <dylany@fb.com> Signed-off-by: Pavel Begunkov <asml.silence@gmail.com> Link: https://lore.kernel.org/r/281fc79d98b5d91fe4778c5137a17a2ab4693e5c.1665088876.git.asml.silence@gmail.com Signed-off-by: Jens Axboe <axboe@kernel.dk>
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