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io_uring: fix multishot accept ordering 

Similar to multishot poll, drop multishot accept when CQE overflow occurs.

Signed-off-by: Dylan Yudaken <dylany@fb.com>
Link: https://lore.kernel.org/r/20220630091231.1456789-10-dylany@fb.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
This commit is contained in:
Dylan Yudaken 2022-06-30 02:12:28 -07:00 committed by Jens Axboe
parent a2da676376
commit cbd2574854
1 changed files with 7 additions and 4 deletions
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11
io_uring/net.c
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@ -656,11 +656,14 @@ int io_accept(struct io_kiocb *req, unsigned int issue_flags)
return IOU_OK; return IOU_OK;
} }
if (ret < 0) if (ret >= 0 &&
return ret; io_post_aux_cqe(ctx, req->cqe.user_data, ret, IORING_CQE_F_MORE, false))
if (io_post_aux_cqe(ctx, req->cqe.user_data, ret, IORING_CQE_F_MORE, true))
goto retry; goto retry;
return -ECANCELED;
io_req_set_res(req, ret, 0);
if (req->flags & REQ_F_POLLED)
return IOU_STOP_MULTISHOT;
return IOU_OK;
} }
int io_socket_prep(struct io_kiocb *req, const struct io_uring_sqe *sqe) int io_socket_prep(struct io_kiocb *req, const struct io_uring_sqe *sqe)