Commit cc767e7c authored by Pavel Begunkov's avatar Pavel Begunkov Committed by Jens Axboe
Browse files

io_uring/net: fail zc sendmsg when unsupported by socket 



The previous patch fails zerocopy send requests for protocols that don't
support it, do the same for zerocopy sendmsg.

Signed-off-by: default avatarPavel Begunkov <asml.silence@gmail.com>
Link: https://lore.kernel.org/r/0854e7bb4c3d810a48ec8b5853e2f61af36a0467.1666346426.git.asml.silence@gmail.com


Signed-off-by: default avatarJens Axboe <axboe@kernel.dk>
parent edf81438

io_uring/net.c

+2 −0
Original line number Diff line number Diff line
@@ -1153,6 +1153,8 @@ int io_sendmsg_zc(struct io_kiocb *req, unsigned int issue_flags) 
	sock = sock_from_file(req->file);

	if (unlikely(!sock))

		return -ENOTSOCK;

	if (!test_bit(SOCK_SUPPORT_ZC, &sock->flags))

		return -EOPNOTSUPP;



	if (req_has_async_data(req)) {

		kmsg = req->async_data;