Merge tag 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost

Pull virtio fix from Michael Tsirkin:
 "A last minute revert to fix a regression"

* tag 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost:
  Revert "virtio-blk: support completion batching for the IRQ path"