SEND[MSG]_ZC produces multiple CQEs via notifications, LAZY_WAKE doesn't
handle it and so disable LAZY_WAKE for sendzc polling. It should be
fine, sends are not likely to be polled in the first place.
Fixes: 6ce4a93dbb5b ("io_uring/poll: use IOU_F_TWQ_LAZY_WAKE for wakeups")
Signed-off-by: Pavel Begunkov <asml.silence@xxxxxxxxx>
---
io_uring/net.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/io_uring/net.c b/io_uring/net.c
index 51c41d771c50..503debecad32 100644
--- a/io_uring/net.c
+++ b/io_uring/net.c
@@ -1198,6 +1198,7 @@ int io_send_zc_prep(struct io_kiocb *req, const struct io_uring_sqe *sqe)
struct io_kiocb *notif;
zc->done_io = 0;
+ req->flags |= REQ_F_POLL_NO_LAZY;
if (unlikely(READ_ONCE(sqe->__pad2[0]) || READ_ONCE(sqe->addr3)))
return -EINVAL;
--
2.44.0
