diff options
| author | Pavel Begunkov <asml.silence@gmail.com> | 2025-03-31 17:17:58 +0100 |
|---|---|---|
| committer | Jens Axboe <axboe@kernel.dk> | 2025-03-31 12:41:49 -0600 |
| commit | 81ed18015d65f111ddbc88599c48338a5e1927d0 (patch) | |
| tree | 6e27f331b4bfa1cdb4c0d215cda1f62c4f1ab7d6 /io_uring | |
| parent | a1fbe0a12178a006b04a7fa528457f9901d6c6d0 (diff) | |
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: Pavel Begunkov <asml.silence@gmail.com>
Link: https://lore.kernel.org/r/9b2de1a50844f848f62c8de609b494971033a6b9.1743437358.git.asml.silence@gmail.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'io_uring')
| -rw-r--r-- | io_uring/net.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/io_uring/net.c b/io_uring/net.c index eaa627eddb4a..24040bc3916a 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); |