diff options
| author | Paolo Bonzini <pbonzini@redhat.com> | 2016-02-14 18:17:05 +0100 |
|---|---|---|
| committer | Michael S. Tsirkin <mst@redhat.com> | 2016-02-25 13:14:18 +0200 |
| commit | 8b1fe1cedfde53c233c89938fca334ccaab26cff (patch) | |
| tree | d00c53c9a4b8be1ecc4f02c2f1af22a12f8b13c2 | |
| parent | ef0716df7f2f513afcacf3fcf6b104864f5b64fd (diff) | |
| download | qemu-8b1fe1cedfde53c233c89938fca334ccaab26cff.tar.gz | |
vring: make vring_enable_notification return void
Make the API more similar to the regular virtqueue API. This will
help when modifying the code to not use vring.c anymore.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Acked-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Reviewed-by: Fam Zheng <famz@redhat.com>
Acked-by: Stefan Hajnoczi <stefanha@redhat.com>
| -rw-r--r-- | hw/block/dataplane/virtio-blk.c | 3 | ||||
| -rw-r--r-- | hw/virtio/dataplane/vring.c | 3 | ||||
| -rw-r--r-- | include/hw/virtio/dataplane/vring.h | 2 |
3 files changed, 4 insertions, 4 deletions
diff --git a/hw/block/dataplane/virtio-blk.c b/hw/block/dataplane/virtio-blk.c index 0d9978109c..03b81bc48d 100644 --- a/hw/block/dataplane/virtio-blk.c +++ b/hw/block/dataplane/virtio-blk.c @@ -128,7 +128,8 @@ static void handle_notify(EventNotifier *e) /* Re-enable guest->host notifies and stop processing the vring. * But if the guest has snuck in more descriptors, keep processing. */ - if (vring_enable_notification(s->vdev, &s->vring)) { + vring_enable_notification(s->vdev, &s->vring); + if (!vring_more_avail(s->vdev, &s->vring)) { break; } } else { /* fatal error */ diff --git a/hw/virtio/dataplane/vring.c b/hw/virtio/dataplane/vring.c index 4308d9f055..157e8b859c 100644 --- a/hw/virtio/dataplane/vring.c +++ b/hw/virtio/dataplane/vring.c @@ -175,7 +175,7 @@ void vring_disable_notification(VirtIODevice *vdev, Vring *vring) * * Return true if the vring is empty, false if there are more requests. */ -bool vring_enable_notification(VirtIODevice *vdev, Vring *vring) +void vring_enable_notification(VirtIODevice *vdev, Vring *vring) { if (virtio_vdev_has_feature(vdev, VIRTIO_RING_F_EVENT_IDX)) { vring_avail_event(&vring->vr) = vring->vr.avail->idx; @@ -183,7 +183,6 @@ bool vring_enable_notification(VirtIODevice *vdev, Vring *vring) vring_clear_used_flags(vdev, vring, VRING_USED_F_NO_NOTIFY); } smp_mb(); /* ensure update is seen before reading avail_idx */ - return !vring_more_avail(vdev, vring); } /* This is stolen from linux/drivers/vhost/vhost.c:vhost_notify() */ diff --git a/include/hw/virtio/dataplane/vring.h b/include/hw/virtio/dataplane/vring.h index e80985ee4c..e1c2a65f55 100644 --- a/include/hw/virtio/dataplane/vring.h +++ b/include/hw/virtio/dataplane/vring.h @@ -42,7 +42,7 @@ static inline void vring_set_broken(Vring *vring) bool vring_setup(Vring *vring, VirtIODevice *vdev, int n); void vring_teardown(Vring *vring, VirtIODevice *vdev, int n); void vring_disable_notification(VirtIODevice *vdev, Vring *vring); -bool vring_enable_notification(VirtIODevice *vdev, Vring *vring); +void vring_enable_notification(VirtIODevice *vdev, Vring *vring); bool vring_should_notify(VirtIODevice *vdev, Vring *vring); void *vring_pop(VirtIODevice *vdev, Vring *vring, size_t sz); void vring_push(VirtIODevice *vdev, Vring *vring, VirtQueueElement *elem, |