mount point for 1Gb huge pages is created when they are disabled

[Sergey Kolekonov]

Steps to reproduce:
Deploy MOS 9.0 environment with 2M hugepages enabled and disabled 1Gb hugepages
Expected results:
There's no mount point in /etc/fstab for 1Gb hugepages as they are disabled
Actual result:
From /etc/fstab:
hugetlbfs-kvm /mnt/hugepages_1GB hugetlbfs mode=775,gid=kvm,pagesize=1GB 0 0

The reason is that $hugepages_1g_opts_ensure variable is unset in this case.
It makes file_line for this mount point behave as if $hugepages_1g_opts_ensure was set to 'present'

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.openstack.org/312937

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/312937
Committed: https://git.openstack.org/cgit/openstack/fuel-library/commit/?id=c7e6902d5be53c125cd69597cea46454efba7260
Submitter: Jenkins
Branch: master

commit c7e6902d5be53c125cd69597cea46454efba7260
Author: Sergey Kolekonov <email address hidden>
Date: Thu May 5 16:08:58 2016 +0300

    Fix huge pages related opts behavior

    Make sure that $hugepages_1g_opts_ensure is always set as a case is possible
    when this variable is not set, file_line will treate it as 'present'

    Change-Id: I1b89195564ee41e8b04833bdb131d7e3a7f7f089
    Closes-bug: #1578623

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: stable/mitaka
Review: https://review.openstack.org/315606

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/315606
Committed: https://git.openstack.org/cgit/openstack/fuel-library/commit/?id=6731d9dc55a7565f50131dc7eb0a7b37e373b81f
Submitter: Jenkins
Branch: stable/mitaka

commit 6731d9dc55a7565f50131dc7eb0a7b37e373b81f
Author: Sergey Kolekonov <email address hidden>
Date: Thu May 5 16:08:58 2016 +0300

    Fix huge pages related opts behavior

    Make sure that $hugepages_1g_opts_ensure is always set as a case is possible
    when this variable is not set, file_line will treate it as 'present'

    Change-Id: I1b89195564ee41e8b04833bdb131d7e3a7f7f089
    Closes-bug: #1578623
    (cherry picked from commit c7e6902d5be53c125cd69597cea46454efba7260)

[Kristina Berezovskaia (kkuznetsova)]

verify on
cat /etc/fuel_build_id:
 486
cat /etc/fuel_build_number:
 486
cat /etc/fuel_release:
 9.0
cat /etc/fuel_openstack_version:
 mitaka-9.0
rpm -qa | egrep 'fuel|astute|network-checker|nailgun|packetary|shotgun':
 fuel-release-9.0.0-1.mos6349.noarch
 fuel-misc-9.0.0-1.mos8458.noarch
 python-packetary-9.0.0-1.mos140.noarch
 fuel-bootstrap-cli-9.0.0-1.mos285.noarch
 fuel-migrate-9.0.0-1.mos8458.noarch
 rubygem-astute-9.0.0-1.mos750.noarch
 fuel-mirror-9.0.0-1.mos140.noarch
 shotgun-9.0.0-1.mos90.noarch
 fuel-openstack-metadata-9.0.0-1.mos8742.noarch
 fuel-notify-9.0.0-1.mos8458.noarch
 nailgun-mcagents-9.0.0-1.mos750.noarch
 python-fuelclient-9.0.0-1.mos325.noarch
 fuel-9.0.0-1.mos6349.noarch
 fuel-utils-9.0.0-1.mos8458.noarch
 fuel-setup-9.0.0-1.mos6349.noarch
 fuel-provisioning-scripts-9.0.0-1.mos8742.noarch
 fuel-library9.0-9.0.0-1.mos8458.noarch
 network-checker-9.0.0-1.mos74.x86_64
 fuel-agent-9.0.0-1.mos285.noarch
 fuel-ui-9.0.0-1.mos2717.noarch
 fuel-ostf-9.0.0-1.mos936.noarch
 fuelmenu-9.0.0-1.mos274.noarch
 fuel-nailgun-9.0.0-1.mos8742.noarch

neutron+vlan, 1 controller, 1 compute with 2M pages
Check /etc/fstab. Reboot node and one more time check /etc/fstab