Open Stack

Hi, I'd like you to take a look at this patch for potential
DocImpact.
https://review.openstack.org/22105

Log:
commit fad558fdca2e94ecf73a96acbb0a4fc4914ec9c2
Author: Yaguang Tang <yaguang.tang at canonical.com>
Date:   Fri Feb 15 23:41:02 2013 +0800

    Add support for instance disk IO control.
    
    Part 3 for blueprint quota-instance-resource, by setting exposed params
    "disk_read_bytes_sec, disk_read_iops_sec, disk_write_bytes_sec,
    disk_write_iops_sec, disk_total_bytes_sec, disk_total_iops_sec"
    through nova flavor-set, user can implement instance disk IO control
    policy.
    for example:
    nova flavor-set m1.medium set disk_write_bytes_sec=10240000,
    then the max disk write IO is 10MB/s for VM user.
    
    partly implement blueprint quota-instance-resource
    original reviews https://review.openstack.org/#/c/14151/
    DocImpact
    
    Change-Id: I8605acf61d7ddbfdaf6eee3ab135898df2449484