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vhost: copy_to_user -> __copy_to_user

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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>
This commit is contained in:
Michael S. Tsirkin 2010-09-21 14:18:01 +02:00
parent 64e1c80748
commit dfe5ac5b18
1 changed files with 1 additions and 1 deletions
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2
drivers/vhost/vhost.c
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@ -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;
}