VIRTIO_F_NOTIFY_ON_EMPTY 2448 drivers/vhost/vhost.c if (vhost_has_feature(vq, VIRTIO_F_NOTIFY_ON_EMPTY) && VIRTIO_F_NOTIFY_ON_EMPTY 238 drivers/vhost/vhost.h VHOST_FEATURES = (1ULL << VIRTIO_F_NOTIFY_ON_EMPTY) |