diff options
| author | Pavel Begunkov <asml.silence@gmail.com> | 2025-03-07 16:00:34 +0000 |
|---|---|---|
| committer | Jens Axboe <axboe@kernel.dk> | 2025-03-07 13:41:08 -0700 |
| commit | 9fcb349f5ad1355332b7ca711251bc01639bd852 (patch) | |
| tree | c3e49efccbfb506f56442fb787b73648fc92173b /io_uring | |
| parent | 17523a821d2276d8d1031467a3fb87e9c7321384 (diff) | |
io_uring/net: pull vec alloc out of msghdr import
I'll need more control over iovec management, move
io_net_import_vec() out of io_msg_copy_hdr().
Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Link: https://lore.kernel.org/r/9600ea6300f620e65d39da481c22605ddc898850.1741362889.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 | 23 |
1 files changed, 15 insertions, 8 deletions
diff --git a/io_uring/net.c b/io_uring/net.c index f64400aebd54..0c46e6315289 100644 --- a/io_uring/net.c +++ b/io_uring/net.c @@ -253,12 +253,8 @@ static int io_compat_msg_copy_hdr(struct io_kiocb *req, return -EFAULT; sr->len = tmp_iov.iov_len; } - - return 0; } - - return io_net_import_vec(req, iomsg, (struct iovec __user *)uiov, - msg->msg_iovlen, ddir); + return 0; } static int io_copy_msghdr_from_user(struct user_msghdr *msg, @@ -328,10 +324,8 @@ static int io_msg_copy_hdr(struct io_kiocb *req, struct io_async_msghdr *iomsg, return -EFAULT; sr->len = tmp_iov.iov_len; } - return 0; } - - return io_net_import_vec(req, iomsg, msg->msg_iov, msg->msg_iovlen, ddir); + return 0; } static int io_sendmsg_copy_hdr(struct io_kiocb *req, @@ -342,6 +336,12 @@ static int io_sendmsg_copy_hdr(struct io_kiocb *req, int ret; ret = io_msg_copy_hdr(req, iomsg, &msg, ITER_SOURCE, NULL); + if (unlikely(ret)) + return ret; + + if (!(req->flags & REQ_F_BUFFER_SELECT)) + ret = io_net_import_vec(req, iomsg, msg.msg_iov, msg.msg_iovlen, + ITER_SOURCE); /* save msg_control as sys_sendmsg() overwrites it */ sr->msg_control = iomsg->msg.msg_control_user; return ret; @@ -719,6 +719,13 @@ static int io_recvmsg_copy_hdr(struct io_kiocb *req, ret = io_msg_copy_hdr(req, iomsg, &msg, ITER_DEST, &iomsg->uaddr); if (unlikely(ret)) return ret; + + if (!(req->flags & REQ_F_BUFFER_SELECT)) { + ret = io_net_import_vec(req, iomsg, msg.msg_iov, msg.msg_iovlen, + ITER_DEST); + if (unlikely(ret)) + return ret; + } return io_recvmsg_mshot_prep(req, iomsg, msg.msg_namelen, msg.msg_controllen); } |