Open Stack

Hi, I'd like you to take a look at this patch for potential
DocImpact.
https://review.openstack.org/26686

Log:
commit dfbfe6ef88a7ceb7e30979e3ca781902a87b5f4f
Author: Joseph Glanville <joseph at cloudscaling.com>
Date:   Wed Apr 10 16:02:42 2013 -0700

    iscsi: Add ability to specify or autodetect block vs fileio
    
    When using block devices to back iSCSI logical units it is
    advantageous to use blockio as it decreases latency and
    increases throughput, effect is especially pronounced with
    faster backing storage devices.
    
    DocImpact
    
    Change-Id: Ia8cba5ddfe140cb5732c2b9ad882831e812a44bc