Merge branch 'stable/for-jens-4.13' of...

Merge branch 'stable/for-jens-4.13' of git://git.kernel.org/pub/scm/linux/kernel/git/konrad/xen into for-linus

Pull xen-blkback fix from Konrad:

"[...] A bug-fix when shutting down xen block backend driver with
 multiple queues and the driver not clearing all of them."