From 5b1bf7cb673ade0ab5c75f200dce911d9fb91c21 Mon Sep 17 00:00:00 2001 From: Heinz Graalfs Date: Tue, 29 Oct 2013 09:39:48 +1030 Subject: virtio_ring: let virtqueue_{kick()/notify()} return a bool virtqueue_{kick()/notify()} should exploit the new host notification API. If the notify call returned with a negative value the host kick failed (e.g. a kick triggered after a device was hot-unplugged). In this case the virtqueue is set to 'broken' and false is returned, otherwise true. Signed-off-by: Heinz Graalfs Signed-off-by: Rusty Russell --- include/linux/virtio.h | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'include/linux') diff --git a/include/linux/virtio.h b/include/linux/virtio.h index 36d36cc89329..9b4de15fcb2f 100644 --- a/include/linux/virtio.h +++ b/include/linux/virtio.h @@ -51,11 +51,11 @@ int virtqueue_add_sgs(struct virtqueue *vq, void *data, gfp_t gfp); -void virtqueue_kick(struct virtqueue *vq); +bool virtqueue_kick(struct virtqueue *vq); bool virtqueue_kick_prepare(struct virtqueue *vq); -void virtqueue_notify(struct virtqueue *vq); +bool virtqueue_notify(struct virtqueue *vq); void *virtqueue_get_buf(struct virtqueue *vq, unsigned int *len); -- cgit v1.2.3