Scality: Lock around SOFS mount to avoid a race
Scality: Lock around SOFS mount to avoid a race

Both cinder-volume and cinder-backup could want to mount the
SOFS at the same time (during init).

Related-Bug: #1410341
Change-Id: I75faa6eb283bc7c1f655cf5b051bed025af3d701

eharney/cinder,Akrog/cinder,winndows/cinder,Accelerite/cinder,leilihh/cinder,dims/cinder,potsmaster/cinder,NetApp/cinder,saeki-masaki/cinder,phenoxim/cinder,potsmaster/cinder,nikesh-mahalka/cinder,j-griffith/cinder,takeshineshiro/cinder,phenoxim/cinder,CloudServer/cinder,eharney/cinder,nexusriot/cinder,cloudbase/cinder,openstack/cinder,scottdangelo/RemoveVolumeMangerLocks,mahak/cinder,hguemar/cinder,petrutlucian94/cinder,scality/cinder,dims/cinder,manojhirway/ExistingImagesOnNFS,julianwang/cinder,tlakshman26/cinder-https-changes,scottdangelo/RemoveVolumeMangerLocks,ge0rgi/cinder,abusse/cinder,apporc/cinder,nexusriot/cinder,JioCloud/cinder,blueboxgroup/cinder,j-griffith/cinder,Datera/cinder,takeshineshiro/cinder,Paul-Ezell/cinder-1,Nexenta/cinder,Akrog/cinder,duhzecca/cinder,Nexenta/cinder,blueboxgroup/cinder,bswartz/cinder,cloudbase/cinder,Accelerite/cinder,apporc/cinder,petrutlucian94/cinder,Hybrid-Cloud/cinder,CloudServer/cinder,Datera/cinder,hguemar/cinder,bswartz/cinder,rakeshmi/cinder,sasukeh/cinder,mahak/cinder,saeki-masaki/cinder,manojhirway/ExistingImagesOnNFS,Hybrid-Cloud/cinder,tlakshman26/cinder-new-branch,scality/cinder,openstack/cinder,tlakshman26/cinder-https-changes,winndows/cinder,tlakshman26/cinder-new-branch,julianwang/cinder,tlakshman26/cinder-bug-fix-volume-conversion-full,Paul-Ezell/cinder-1,rakeshmi/cinder,JioCloud/cinder,abusse/cinder,leilihh/cinder,nikesh-mahalka/cinder,sasukeh/cinder,NetApp/cinder,duhzecca/cinder,tlakshman26/cinder-bug-fix-volume-conversion-full