Pull virtio updates from Michael Tsirkin: "Just fixes and cleanups this time around. The mapping cleanups are preparing the ground for new features, though" * tag 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost: virtio-vdpa: Drop redundant conversion to bool vduse: Use fixed 4KB bounce pages for non-4KB page size vduse: switch to use virtio map API instead of DMA API vdpa: introduce map ops vdpa: support virtio_map virtio: introduce map ops in virtio core virtio_ring: rename dma_handle to map_handle virtio: introduce virtio_map container union virtio: rename dma helpers virtio_ring: switch to use dma_{map|unmap}_page() virtio_ring: constify virtqueue pointer for DMA helpers virtio_balloon: Remove redundant __GFP_NOWARN vhost: vringh: Fix copy_to_iter return value check vhost: vringh: Modify the return value check