virtio-net: add cond_resched() to the command waiting loop
Adding cond_resched() to the command waiting loop for a better co-operation with the scheduler. This allows to give CPU a breath to run other task(workqueue) instead of busy looping when preemption is not allowed on a device whose CVQ might be slow. Signed-off-by: Jason Wang <jasowang@redhat.com> Message-Id: <20230720083839.481487-3-jasowang@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com> Reviewed-by: Shannon Nelson <shannon.nelson@amd.com>
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