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Commit d77f873f authored by David S. Miller's avatar David S. Miller
Browse files

Merge branch 'net-2.6' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost

parents cea0d767 0d499356

drivers/vhost/vhost.c

+6 −1
Original line number Original line Diff line number Diff line
@@ -1035,7 +1035,12 @@ int vhost_add_used(struct vhost_virtqueue *vq, unsigned int head, int len) 
/* This actually signals the guest, using eventfd. */

/* This actually signals the guest, using eventfd. */

void vhost_signal(struct vhost_dev *dev, struct vhost_virtqueue *vq)

void vhost_signal(struct vhost_dev *dev, struct vhost_virtqueue *vq)

{

{

	__u16 flags = 0;

	__u16 flags;

	/* Flush out used index updates. This is paired

	 * with the barrier that the Guest executes when enabling

	 * interrupts. */

	smp_mb();



	if (get_user(flags, &vq->avail->flags)) {

	if (get_user(flags, &vq->avail->flags)) {

		vq_err(vq, "Failed to get flags");

		vq_err(vq, "Failed to get flags");

		return;

		return;