tree c90e760edaf94d91d94ff366e881fe5562e4478d
parent 46f9c2b925ac12e5ad8b8b7c90c71dacc9d5db37
author Heinz Graalfs <graalfs@linux.vnet.ibm.com> 1383001788 +1030
committer Rusty Russell <rusty@rustcorp.com.au> 1383008292 +1030

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>