From dfe5ac5b18be5b10d01a17e734a9905c0def6088 Mon Sep 17 00:00:00 2001
From: "Michael S. Tsirkin" <mst@redhat.com>
Date: Tue, 21 Sep 2010 14:18:01 +0200
Subject: [PATCH] vhost: copy_to_user -> __copy_to_user
We do access_ok checks at setup time, so we don't need to
redo them on each access.
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
---
drivers/vhost/vhost.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/vhost/vhost.c b/drivers/vhost/vhost.c
index c17c881e235a..e6a093187a0e 100644
--- a/drivers/vhost/vhost.c
+++ b/drivers/vhost/vhost.c
@@ -1258,7 +1258,7 @@ static int __vhost_add_used_n(struct vhost_virtqueue *vq,
start = vq->last_used_idx % vq->num;
used = vq->used->ring + start;
- if (copy_to_user(used, heads, count * sizeof *used)) {
+ if (__copy_to_user(used, heads, count * sizeof *used)) {
vq_err(vq, "Failed to write used");
return -EFAULT;
}