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authorJens Axboe <axboe@kernel.dk>2021-02-09 19:53:37 -0700
committerJens Axboe <axboe@kernel.dk>2021-02-10 07:33:12 -0700
commitc7dae4ba46c9d7d56430b800907b708711995414 (patch)
tree5194bd010d3599c0241a6abbea1f56e026441a26 /tools/perf/scripts/python
parentio_uring: fix possible deadlock in io_uring_poll (diff)
downloadlinux-c7dae4ba46c9d7d56430b800907b708711995414.tar.gz
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io_uring: enable req cache for IRQ driven IO
This is the last class of requests that cannot utilize the req alloc cache. Add a per-ctx req cache that is protected by the completion_lock, and refill our submit side cache when it gets over our batch count. Signed-off-by: Jens Axboe <axboe@kernel.dk>
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