Commit 9a692451 authored by Dylan Yudaken's avatar Dylan Yudaken Committed by Jens Axboe
Browse files

io_uring: allow multishot polled reqs to defer completion 



Until now there was no reason for multishot polled requests to defer
completions as there was no functional difference. However now this will
actually defer the completions, for a performance win.

Signed-off-by: default avatarDylan Yudaken <dylany@meta.com>
Link: https://lore.kernel.org/r/20221124093559.3780686-10-dylany@meta.com


Signed-off-by: default avatarJens Axboe <axboe@kernel.dk>
parent b529c96a

io_uring/io_uring.c

+2 −1
Original line number Diff line number Diff line
@@ -1803,7 +1803,8 @@ int io_poll_issue(struct io_kiocb *req, bool *locked) 
	io_tw_lock(req->ctx, locked);

	if (unlikely(req->task->flags & PF_EXITING))

		return -EFAULT;

	return io_issue_sqe(req, IO_URING_F_NONBLOCK|IO_URING_F_MULTISHOT);

	return io_issue_sqe(req, IO_URING_F_NONBLOCK|IO_URING_F_MULTISHOT|

				 IO_URING_F_COMPLETE_DEFER);

}



struct io_wq_work *io_wq_free_work(struct io_wq_work *work)