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virtio: Mark host notifiers as external

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The effect of this change is the block layer drained section can work,
for example when mirror job is being completed.

Signed-off-by: Fam Zheng <famz@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
This commit is contained in:
Fam Zheng 2016-04-22 21:53:54 +08:00 committed by Kevin Wolf
parent 54e18d35e4
commit 14560d69e7
1 changed files with 2 additions and 2 deletions
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4
hw/virtio/virtio.c
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@ -1829,10 +1829,10 @@ void virtio_queue_set_host_notifier_fd_handler(VirtQueue *vq, bool assign,
bool set_handler)
{
if (assign && set_handler) {
event_notifier_set_handler(&vq->host_notifier, false,
event_notifier_set_handler(&vq->host_notifier, true,
virtio_queue_host_notifier_read);
} else {
event_notifier_set_handler(&vq->host_notifier, false, NULL);
event_notifier_set_handler(&vq->host_notifier, true, NULL);
}
if (!assign) {
/* Test and clear notifier before after disabling event,