summaryrefslogtreecommitdiff
path: root/io_uring
diff options
context:
space:
mode:
Diffstat (limited to 'io_uring')
-rw-r--r--io_uring/net.c62
1 files changed, 28 insertions, 34 deletions
diff --git a/io_uring/net.c b/io_uring/net.c
index efa2d901762f..4ef94bf88cb4 100644
--- a/io_uring/net.c
+++ b/io_uring/net.c
@@ -192,6 +192,29 @@ static inline void io_mshot_prep_retry(struct io_kiocb *req,
req->buf_index = sr->buf_group;
}
+static int io_net_import_vec(struct io_kiocb *req, struct io_async_msghdr *iomsg,
+ const struct iovec __user *uiov, unsigned uvec_seg,
+ int ddir)
+{
+ struct iovec *iov;
+ int ret, nr_segs;
+
+ if (iomsg->free_iov) {
+ nr_segs = iomsg->free_iov_nr;
+ iov = iomsg->free_iov;
+ } else {
+ nr_segs = 1;
+ iov = &iomsg->fast_iov;
+ }
+
+ ret = __import_iovec(ddir, uiov, uvec_seg, nr_segs, &iov,
+ &iomsg->msg.msg_iter, io_is_compat(req->ctx));
+ if (unlikely(ret < 0))
+ return ret;
+ io_net_vec_assign(req, iomsg, iov);
+ return 0;
+}
+
#ifdef CONFIG_COMPAT
static int io_compat_msg_copy_hdr(struct io_kiocb *req,
struct io_async_msghdr *iomsg,
@@ -200,8 +223,7 @@ static int io_compat_msg_copy_hdr(struct io_kiocb *req,
{
struct io_sr_msg *sr = io_kiocb_to_cmd(req, struct io_sr_msg);
struct compat_iovec __user *uiov;
- struct iovec *iov;
- int ret, nr_segs;
+ int ret;
if (copy_from_user(msg, sr->umsg_compat, sizeof(*msg)))
return -EFAULT;
@@ -227,21 +249,8 @@ static int io_compat_msg_copy_hdr(struct io_kiocb *req,
return 0;
}
- if (iomsg->free_iov) {
- nr_segs = iomsg->free_iov_nr;
- iov = iomsg->free_iov;
- } else {
- iov = &iomsg->fast_iov;
- nr_segs = 1;
- }
-
- ret = __import_iovec(ddir, (struct iovec __user *)uiov, msg->msg_iovlen,
- nr_segs, &iov, &iomsg->msg.msg_iter, true);
- if (unlikely(ret < 0))
- return ret;
-
- io_net_vec_assign(req, iomsg, iov);
- return 0;
+ return io_net_import_vec(req, iomsg, (struct iovec __user *)uiov,
+ msg->msg_iovlen, ddir);
}
#endif
@@ -269,8 +278,7 @@ static int io_msg_copy_hdr(struct io_kiocb *req, struct io_async_msghdr *iomsg,
{
struct io_sr_msg *sr = io_kiocb_to_cmd(req, struct io_sr_msg);
struct user_msghdr __user *umsg = sr->umsg;
- struct iovec *iov;
- int ret, nr_segs;
+ int ret;
ret = io_copy_msghdr_from_user(msg, umsg);
if (unlikely(ret))
@@ -298,21 +306,7 @@ static int io_msg_copy_hdr(struct io_kiocb *req, struct io_async_msghdr *iomsg,
return 0;
}
- if (iomsg->free_iov) {
- nr_segs = iomsg->free_iov_nr;
- iov = iomsg->free_iov;
- } else {
- iov = &iomsg->fast_iov;
- nr_segs = 1;
- }
-
- ret = __import_iovec(ddir, msg->msg_iov, msg->msg_iovlen, nr_segs,
- &iov, &iomsg->msg.msg_iter, false);
- if (unlikely(ret < 0))
- return ret;
-
- io_net_vec_assign(req, iomsg, iov);
- return 0;
+ return io_net_import_vec(req, iomsg, msg->msg_iov, msg->msg_iovlen, ddir);
}
static int io_sendmsg_copy_hdr(struct io_kiocb *req,