io_uring: don't spinlock when not posting CQEs

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When no of queued for the batch completion requests need to post an CQE,
see IOSQE_CQE_SKIP_SUCCESS, avoid grabbing ->completion_lock and other
commit/post.

Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Link: https://lore.kernel.org/r/8d4b4a08bca022cbe19af00266407116775b3e4d.1636559119.git.asml.silence@gmail.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>

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Pavel Begunkov 2021-11-10 15:49:33 +00:00 • committed by Jens Axboe

parent 04c76b41ca

commit 3d4aeb9f98

1 changed files with 17 additions and 9 deletions

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fs/io_uring.c

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