Commit 81ed1801 authored by Pavel Begunkov's avatar Pavel Begunkov Committed by Jens Axboe
Browse files

io_uring/net: avoid import_ubuf for regvec send 



With registered buffers we set up iterators in helpers like
io_import_fixed(), and there is no need for a import_ubuf() before that.
It was fine as we used real pointers for offset calculation, but that's
not the case anymore since introduction of ublk kernel buffers.

Signed-off-by: default avatarPavel Begunkov <asml.silence@gmail.com>
Link: https://lore.kernel.org/r/9b2de1a50844f848f62c8de609b494971033a6b9.1743437358.git.asml.silence@gmail.com


Signed-off-by: default avatarJens Axboe <axboe@kernel.dk>
parent a1fbe0a1

io_uring/net.c

+2 −0
Original line number Diff line number Diff line
@@ -359,6 +359,8 @@ static int io_send_setup(struct io_kiocb *req, const struct io_uring_sqe *sqe) 
		kmsg->msg.msg_name = &kmsg->addr;

		kmsg->msg.msg_namelen = addr_len;

	}

	if (sr->flags & IORING_RECVSEND_FIXED_BUF)

		return 0;

	if (!io_do_buffer_select(req)) {

		ret = import_ubuf(ITER_SOURCE, sr->buf, sr->len,

				  &kmsg->msg.msg_iter);