tree 39b9bd752cb3cb43a5e11d4f0fc35f425f1d02e2
parent 630b54d33493d1f67e79b148b5e361c5bbd3f29d
author Heinz Graalfs <graalfs@linux.vnet.ibm.com> 1383001730 +1030
committer Rusty Russell <rusty@rustcorp.com.au> 1383008291 +1030

virtio_ring: change host notification API

Currently a host kick error is silently ignored and not reflected in
the virtqueue of a particular virtio device.

Changing the notify API for guest->host notification seems to be one
prerequisite in order to be able to handle such errors in the context
where the kick is triggered.

This patch changes the notify API. The notify function must return a
bool return value. It returns false if the host notification failed.

Signed-off-by: Heinz Graalfs <graalfs@linux.vnet.ibm.com>
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>