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io_uring: use state completion infra for poll reqs

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Use io_req_task_complete() for poll request completions, so it can
utilise state completions and save lots of unnecessary locking.

Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Link: https://lore.kernel.org/r/ced94cb5a728d8e386c640d052fd3da3f5d6891a.1655371007.git.asml.silence@gmail.com
Reviewed-by: Hao Xu <howeyxu@tencent.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
This commit is contained in:
Pavel Begunkov 2022-06-16 10:22:07 +01:00 committed by Jens Axboe
parent 8b1dfd343a
commit 0ec6dca223
1 changed files with 2 additions and 6 deletions
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8
io_uring/poll.c
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@ -234,12 +234,8 @@ static void io_poll_task_func(struct io_kiocb *req, bool *locked)
io_poll_remove_entries(req);
io_poll_req_delete(req, ctx);
spin_lock(&ctx->completion_lock);
req->cqe.flags = 0;
__io_req_complete_post(req);
io_commit_cqring(ctx);
spin_unlock(&ctx->completion_lock);
io_cqring_ev_posted(ctx);
io_req_set_res(req, req->cqe.res, 0);
io_req_task_complete(req, locked);
}
static void io_apoll_task_func(struct io_kiocb *req, bool *locked)