put iov_iter into msghdr
Note that the code _using_ ->msg_iter at that point will be very
unhappy with anything other than unshifted iovec-backed iov_iter.
We still need to convert users to proper primitives.
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
diff --git a/net/rds/recv.c b/net/rds/recv.c
index 47d7b10..f9ec1ac 100644
--- a/net/rds/recv.c
+++ b/net/rds/recv.c
@@ -404,7 +404,6 @@
int ret = 0, nonblock = msg_flags & MSG_DONTWAIT;
DECLARE_SOCKADDR(struct sockaddr_in *, sin, msg->msg_name);
struct rds_incoming *inc = NULL;
- struct iov_iter to;
/* udp_recvmsg()->sock_recvtimeo() gets away without locking too.. */
timeo = sock_rcvtimeo(sk, nonblock);
@@ -415,6 +414,7 @@
goto out;
while (1) {
+ struct iov_iter save;
/* If there are pending notifications, do those - and nothing else */
if (!list_empty(&rs->rs_notify_queue)) {
ret = rds_notify_queue_get(rs, msg);
@@ -450,8 +450,8 @@
rdsdebug("copying inc %p from %pI4:%u to user\n", inc,
&inc->i_conn->c_faddr,
ntohs(inc->i_hdr.h_sport));
- iov_iter_init(&to, READ, msg->msg_iov, msg->msg_iovlen, size);
- ret = inc->i_conn->c_trans->inc_copy_to_user(inc, &to);
+ save = msg->msg_iter;
+ ret = inc->i_conn->c_trans->inc_copy_to_user(inc, &msg->msg_iter);
if (ret < 0)
break;
@@ -464,6 +464,7 @@
rds_inc_put(inc);
inc = NULL;
rds_stats_inc(s_recv_deliver_raced);
+ msg->msg_iter = save;
continue;
}