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virtio: get rid of VirtIOHandleAIOOutput

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The virtqueue host notifier API
virtio_queue_aio_set_host_notifier_handler() polls the virtqueue for new
buffers. AioContext previously required a bool progress return value
indicating whether an event was handled or not. This is no longer
necessary because the AioContext polling API has been split into a poll
check function and an event handler function. The event handler is only
run when we know there is work to do, so it doesn't return bool.

The VirtIOHandleAIOOutput function signature is now the same as
VirtIOHandleOutput. Get rid of the bool return value.

Further simplifications will be made for virtio-blk and virtio-scsi in
the next patch.

Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Reviewed-by: Stefano Garzarella <sgarzare@redhat.com>
Message-id: 20211207132336.36627-3-stefanha@redhat.com
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
This commit is contained in:
Stefan Hajnoczi 2021-12-07 13:23:32 +00:00
parent 826cc32423
commit d93d16c045
4 changed files with 13 additions and 24 deletions
Download patch file Download diff file Expand all files Collapse all files

4
hw/block/dataplane/virtio-blk.c
View file

@ -154,7 +154,7 @@ void virtio_blk_data_plane_destroy(VirtIOBlockDataPlane *s)
g_free(s);
}
static bool virtio_blk_data_plane_handle_output(VirtIODevice *vdev,
static void virtio_blk_data_plane_handle_output(VirtIODevice *vdev,
VirtQueue *vq)
{
VirtIOBlock *s = (VirtIOBlock *)vdev;
@ -162,7 +162,7 @@ static bool virtio_blk_data_plane_handle_output(VirtIODevice *vdev,
assert(s->dataplane);
assert(s->dataplane_started);
return virtio_blk_handle_vq(s, vq);
virtio_blk_handle_vq(s, vq);
}
/* Context: QEMU global mutex held */