Comment 8 for bug 1566293

Reviewed: https://review.openstack.org/305741
Committed: https://git.openstack.org/cgit/openstack/fuel-library/commit/?id=c2b9eb320798357dc77557d638f995254edea2a9
Submitter: Jenkins
Branch: stable/mitaka

commit c2b9eb320798357dc77557d638f995254edea2a9
Author: Sergey Kolekonov <email address hidden>
Date: Fri Apr 8 16:11:47 2016 +0300

    Fix simultaneous usage of 1Gb and 2Mb huge pages

    Currently it's impossible to use 1Gb and 2Mb huge pages on one compute node
    as a helper script from qemu package allows to use only one mount point
    for huge pages, so 1 Gb huge pages support has to be managed explicitly.

    This patch adds the following steps:
    - create a mount point for 1 Gb huge pages and mount pages in runtime
    - create a persistent record in /etc/fstab to mount huge pages on boot
    - add related settings for libvirt
    - update apparmor settings to allow an additional mount point

    Due to LP #1560532 Nailgun doesn't provide information about allocated
    huge pages when 1 Gb huge pages are used, so this information is computed
    in a custom fact.

    Closes-bug: #1566293

    Change-Id: Iba421abdc354afa7d89f6f10a94c6ba3edb99148
    (cherry picked from commit 10c3d88b55fbcd4427c4cb39690af9e0ae60175b)