Modified Xen blkbk kernel module to support private queues per block device.
Copyright (C) 2012-2016 OnApp Ltd.
Author: (C) 2012-2016 Michail Flouris michail.flouris@onapp.com
To compile just type "make" on a CentOS 5 machine.
Tested with kernel: linux-2.6.18-308.el5