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authorHeinz Graalfs <graalfs@linux.vnet.ibm.com>2013-10-29 09:39:48 +1030
committerRusty Russell <rusty@rustcorp.com.au>2013-10-29 11:28:12 +1030
commit5b1bf7cb673ade0ab5c75f200dce911d9fb91c21 (patch)
treec90e760edaf94d91d94ff366e881fe5562e4478d /include/linux/virtio.h
parent46f9c2b925ac12e5ad8b8b7c90c71dacc9d5db37 (diff)
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 <graalfs@linux.vnet.ibm.com> Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Diffstat (limited to 'include/linux/virtio.h')
-rw-r--r--include/linux/virtio.h4
1 files changed, 2 insertions, 2 deletions
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);