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| author |   Al Viro <viro@zeniv.linux.org.uk> | 2022-09-15 20:25:47 -0400 |
|---|---|---|
| committer | Al Viro <viro@zeniv.linux.org.uk> | 2022-11-25 13:01:55 -0500 |
| commit | de4eda9de2d957ef2d6a8365a01e26a435e958cb (patch) | |
| tree | 49b0d60dedb65af7f0d3e874ee9c661e6b09697b /drivers/vhost/net.c | |
| parent | iov_iter: saner checks for attempt to copy to/from iterator (diff) | |
| download | wireguard-linux-de4eda9de2d957ef2d6a8365a01e26a435e958cb.tar.xz wireguard-linux-de4eda9de2d957ef2d6a8365a01e26a435e958cb.zip | |
use less confusing names for iov_iter direction initializers
READ/WRITE proved to be actively confusing - the meanings are
"data destination, as used with read(2)" and "data source, as
used with write(2)", but people keep interpreting those as
"we read data from it" and "we write data to it", i.e. exactly
the wrong way.
Call them ITER_DEST and ITER_SOURCE - at least that is harder
to misinterpret...
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Diffstat (limited to 'drivers/vhost/net.c')
| -rw-r--r-- | drivers/vhost/net.c | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/drivers/vhost/net.c b/drivers/vhost/net.c index 20265393aee7..9af19b0cf3b7 100644 --- a/drivers/vhost/net.c +++ b/drivers/vhost/net.c @@ -611,7 +611,7 @@ static size_t init_iov_iter(struct vhost_virtqueue *vq, struct iov_iter *iter, /* Skip header. TODO: support TSO. */ size_t len = iov_length(vq->iov, out); - iov_iter_init(iter, WRITE, vq->iov, out, len); + iov_iter_init(iter, ITER_SOURCE, vq->iov, out, len); iov_iter_advance(iter, hdr_size); return iov_iter_count(iter); @@ -1184,14 +1184,14 @@ static void handle_rx(struct vhost_net *net) msg.msg_control = vhost_net_buf_consume(&nvq->rxq); /* On overrun, truncate and discard */ if (unlikely(headcount > UIO_MAXIOV)) { - iov_iter_init(&msg.msg_iter, READ, vq->iov, 1, 1); + iov_iter_init(&msg.msg_iter, ITER_DEST, vq->iov, 1, 1); err = sock->ops->recvmsg(sock, &msg, 1, MSG_DONTWAIT | MSG_TRUNC); pr_debug("Discarded rx packet: len %zd\n", sock_len); continue; } /* We don't need to be notified again. */ - iov_iter_init(&msg.msg_iter, READ, vq->iov, in, vhost_len); + iov_iter_init(&msg.msg_iter, ITER_DEST, vq->iov, in, vhost_len); fixup = msg.msg_iter; if (unlikely((vhost_hlen))) { /* We will supply the header ourselves |