Re: [PATCH] virtio_balloon: check virtqueue_add_outbuf() return value
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From: "Michael S. Tsirkin" <mst@redhat.com>
Date: 2022-05-27 10:57:43
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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 _______________________________________________ Virtualization mailing list Virtualization@lists.linux-foundation.org https://lists.linuxfoundation.org/mailman/listinfo/virtualization