6.6-stable review patch. If anyone has any objections, please let me know.
------------------
From: Jens Axboe <axboe@xxxxxxxxx>
Commit 91e5d765a82fb2c9d0b7ad930d8953208081ddf1 upstream.
In preparation for putting some retry logic in there, have the done
path just skip straight to the end rather than have too much nesting
in here.
No functional changes in this patch.
Signed-off-by: Jens Axboe <axboe@xxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
io_uring/net.c | 36 ++++++++++++++++++++----------------
1 file changed, 20 insertions(+), 16 deletions(-)
--- a/io_uring/net.c
+++ b/io_uring/net.c
@@ -645,23 +645,27 @@ static inline bool io_recv_finish(struct
return true;
}
- if (!mshot_finished) {
- if (io_fill_cqe_req_aux(req, issue_flags & IO_URING_F_COMPLETE_DEFER,
- *ret, cflags | IORING_CQE_F_MORE)) {
- io_recv_prep_retry(req);
- /* Known not-empty or unknown state, retry */
- if (cflags & IORING_CQE_F_SOCK_NONEMPTY ||
- msg->msg_inq == -1)
- return false;
- if (issue_flags & IO_URING_F_MULTISHOT)
- *ret = IOU_ISSUE_SKIP_COMPLETE;
- else
- *ret = -EAGAIN;
- return true;
- }
- /* Otherwise stop multishot but use the current result. */
- }
+ if (mshot_finished)
+ goto finish;
+ /*
+ * Fill CQE for this receive and see if we should keep trying to
+ * receive from this socket.
+ */
+ if (io_fill_cqe_req_aux(req, issue_flags & IO_URING_F_COMPLETE_DEFER,
+ *ret, cflags | IORING_CQE_F_MORE)) {
+ io_recv_prep_retry(req);
+ /* Known not-empty or unknown state, retry */
+ if (cflags & IORING_CQE_F_SOCK_NONEMPTY || msg->msg_inq == -1)
+ return false;
+ if (issue_flags & IO_URING_F_MULTISHOT)
+ *ret = IOU_ISSUE_SKIP_COMPLETE;
+ else
+ *ret = -EAGAIN;
+ return true;
+ }
+ /* Otherwise stop multishot but use the current result. */
+finish:
io_req_set_res(req, *ret, cflags);
if (issue_flags & IO_URING_F_MULTISHOT)
