diff mbox series

[1/5] io_uring/net: avoid import_ubuf for regvec send

Message ID 9b2de1a50844f848f62c8de609b494971033a6b9.1743437358.git.asml.silence@gmail.com (mailing list archive)
State New
Headers show
Series various net improvements | expand

Commit Message

Pavel Begunkov March 31, 2025, 4:17 p.m. UTC 
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: Pavel Begunkov <asml.silence@gmail.com>
---
 io_uring/net.c | 2 ++
 1 file changed, 2 insertions(+)
diff mbox series

Patch

diff --git a/io_uring/net.c b/io_uring/net.c
index f8dfa6166e3c..3b50151577be 100644
--- a/io_uring/net.c
+++ b/io_uring/net.c
@@ -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);