Messages in this thread | | | Date | Fri, 27 May 2022 06:57:32 -0400 | From | "Michael S. Tsirkin" <> | Subject | Re: [PATCH] virtio_balloon: check virtqueue_add_outbuf() return value |
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On Fri, May 27, 2022 at 10:43:30AM +0000, Bo Liu (刘波)-浪潮信息 wrote: > The purpose of this patch is, virtqueue_add_outbuf() adding data to > virtqueue may succeed or fail. If successful, it will call virtqueue_kick() > to notifie the host backend driver, but if the virtqueue_add_outbuf() fails, > the data is not successfully added to the virtqueue, and the host back-end > driver does not need to be notified for processing. > > Thanks.
Why is it a problem if we do?
-- MST
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