bb1579090b
Currently, the ionice command prepended to a dd command is allowed by three rootwrap RegExpFilter's that cover 3 arguments patterns. However, this doesn't support if either 'iflag=direct' or 'oflag=direct' is omitted. Because of this problem, deletion of volumes may fail if volume_clear_ionice is set, as 'iflag=direct' is omitted. This commit fixes this problem by replacing the filters with ChainingRegExpFilter's, which allow to execute ionice to be combined with the other allowed commands, including 'dd'. Originally '-c[0-3]( -n[0-7])?' was allowed as an ionice option, but it is invalid to specify -n[0-7] in a single option (for example, when '-c2 -n7' is specified, ionice causes an error "invalid class argument: '2 -n7'"). In this patch, 2 filters are provided to cover the case only with -c option and the case with both -c and -n options. Change-Id: Ia074bf3244b7f010bd9e3b5e46c3152c1848f3d3 Signed-off-by: Tomoki Sekiyama <tomoki.sekiyama@hds.com> Closes-Bug: 1334422
The Choose Your Own Adventure README for Cinder
You have come across a storage service for an open cloud computing service. It has identified itself as "Cinder." It was abstracted from the Nova project.
To monitor it from a distance: follow @openstack on twitter.
To tame it for use in your own cloud: read http://docs.openstack.org
To study its anatomy: read http://cinder.openstack.org
To dissect it in detail: visit http://github.com/openstack/cinder
To taunt it with its weaknesses: use http://bugs.launchpad.net/cinder
To watch it: http://jenkins.openstack.org
To hack at it: read HACKING.rst