Fix for 84676c1f (b5b6e8c8) missing in 4.14.y

Hi Ming (and all),

Your series "scsi: virtio_scsi: fix IO hang caused by irq vector automatic =
affinity" which forces virtio-scsi to use blk-mq fixes an issue introduced =
by 84676c1f. We noticed that this bug also exists in 4.14.y (as ef86f3a72ad=
b), but your series was not backported to that stable branch.

Are there any plans to do that? At least CoreOS is using 4.14 and showing i=
ssues on AHV (which provides an mq virtio-scsi controller).

Thanks,
Felipe=