Correct lock path for storage-registry-lock
Correct lock path for storage-registry-lock

This fixes the lock path for storage-registry-lock to prevent a
potential data loss due to a race-condition scenario.  Since the
storage-registry-lock is used to modify a json blob that is
authoritative as to which nodes are using the storage so that
we don't remove any "in-use" backing files on the shared storage
segment (if in use).

The potential data-loss could occur in limited cases of the race
that the lock should prevent.  This can only occur if the image
cache cleanup is triggerd when a node has been eliminated from
the register_storage_use JSON incorrectly by this race condition.

Most of the time the race simplyresults in a corrupted json blob.

Fixes-bug: 1194696
Change-Id: Ib1a5785646e75dc90bdd2a7e69a697adc4fbb298

Yuriy-Leonov/nova,Tehsmash/nova,LoHChina/nova,saleemjaveds/https-github.com-openstack-nova,jianghuaw/nova,jianghuaw/nova,sebrandon1/nova,belmiromoreira/nova,devendermishrajio/nova_test_latest,iuliat/nova,maelnor/nova,mgagne/nova,projectcalico/calico-nova,zzicewind/nova,devoid/nova,mandeepdhami/nova,Yusuke1987/openstack_template,varunarya10/nova_test_latest,redhat-openstack/nova,gooddata/openstack-nova,whitepages/nova,virtualopensystems/nova,ted-gould/nova,orbitfp7/nova,CCI-MOC/nova,eonpatapon/nova,eayunstack/nova,varunarya10/nova_test_latest,zaina/nova,sebrandon1/nova,mandeepdhami/nova,barnsnake351/nova,ruslanloman/nova,badock/nova,bigswitch/nova,LoHChina/nova,affo/nova,vmturbo/nova,CloudServer/nova,shail2810/nova,alexandrucoman/vbox-nova-driver,mikalstill/nova,dawnpower/nova,jeffrey4l/nova,CEG-FYP-OpenStack/scheduler,hanlind/nova,isyippee/nova,devendermishrajio/nova_test_latest,devendermishrajio/nova,vmturbo/nova,tianweizhang/nova,akash1808/nova_test_latest,rahulunair/nova,eharney/nova,bigswitch/nova,rajalokan/nova,rajalokan/nova,spring-week-topos/nova-week,TieWei/nova,virtualopensystems/nova,jianghuaw/nova,apporc/nova,vmturbo/nova,Francis-Liu/animated-broccoli,rajalokan/nova,Francis-Liu/animated-broccoli,thomasem/nova,blueboxgroup/nova,bgxavier/nova,zhimin711/nova,SUSE-Cloud/nova,redhat-openstack/nova,leilihh/nova,rajalokan/nova,nikesh-mahalka/nova,phenoxim/nova,jeffrey4l/nova,ewindisch/nova,tudorvio/nova,mahak/nova,gooddata/openstack-nova,SUSE-Cloud/nova,ewindisch/nova,orbitfp7/nova,sacharya/nova,iuliat/nova,Metaswitch/calico-nova,tealover/nova,JianyuWang/nova,isyippee/nova,Tehsmash/nova,petrutlucian94/nova_dev,Juniper/nova,shahar-stratoscale/nova,tianweizhang/nova,mgagne/nova,noironetworks/nova,alvarolopez/nova,cloudbase/nova,nikesh-mahalka/nova,JioCloud/nova,rahulunair/nova,OpenAcademy-OpenStack/nova-scheduler,JioCloud/nova,eharney/nova,scripnichenko/nova,NeCTAR-RC/nova,j-carpentier/nova,Yusuke1987/openstack_template,dawnpower/nova,tudorvio/nova,tangfeixiong/nova,viggates/nova,maelnor/nova,CEG-FYP-OpenStack/scheduler,tanglei528/nova,akash1808/nova,fnordahl/nova,rrader/nova-docker-plugin,klmitch/nova,takeshineshiro/nova,cloudbase/nova,double12gzh/nova,scripnichenko/nova,tanglei528/nova,klmitch/nova,mahak/nova,bgxavier/nova,vladikr/nova_drafts,adelina-t/nova,klmitch/nova,silenceli/nova,Juniper/nova,double12gzh/nova,cyx1231st/nova,spring-week-topos/nova-week,felixma/nova,luogangyi/bcec-nova,CiscoSystems/nova,alaski/nova,phenoxim/nova,affo/nova,apporc/nova,mmnelemane/nova,MountainWei/nova,Juniper/nova,devoid/nova,NeCTAR-RC/nova,Juniper/nova,cyx1231st/nova,mikalstill/nova,vladikr/nova_drafts,JioCloud/nova_test_latest,berrange/nova,cernops/nova,cloudbase/nova-virtualbox,silenceli/nova,yosshy/nova,alexandrucoman/vbox-nova-driver,rrader/nova-docker-plugin,citrix-openstack-build/nova,rahulunair/nova,alvarolopez/nova,citrix-openstack-build/nova,zhimin711/nova,openstack/nova,BeyondTheClouds/nova,akash1808/nova_test_latest,yatinkumbhare/openstack-nova,berrange/nova,joker946/nova,rickerc/nova_audit,mmnelemane/nova,yosshy/nova,tealover/nova,klmitch/nova,hanlind/nova,gooddata/openstack-nova,watonyweng/nova,OpenAcademy-OpenStack/nova-scheduler,petrutlucian94/nova_dev,projectcalico/calico-nova,ntt-sic/nova,mikalstill/nova,mahak/nova,noironetworks/nova,barnsnake351/nova,edulramirez/nova,openstack/nova,saleemjaveds/https-github.com-openstack-nova,leilihh/novaha,JioCloud/nova_test_latest,TieWei/nova,Stavitsky/nova,hanlind/nova,takeshineshiro/nova,eayunstack/nova,felixma/nova,viggates/nova,openstack/nova,ruslanloman/nova,angdraug/nova,TwinkleChawla/nova,alaski/nova,Yuriy-Leonov/nova,adelina-t/nova,dims/nova,petrutlucian94/nova,kimjaejoong/nova,cloudbase/nova,ntt-sic/nova,kimjaejoong/nova,cloudbau/nova,vmturbo/nova,joker946/nova,jianghuaw/nova,luogangyi/bcec-nova,ted-gould/nova,CCI-MOC/nova,yatinkumbhare/openstack-nova,CiscoSystems/nova,blueboxgroup/nova,petrutlucian94/nova,leilihh/nova,BeyondTheClouds/nova,sacharya/nova,edulramirez/nova,watonyweng/nova,cloudbase/nova-virtualbox,JianyuWang/nova,badock/nova,cloudbau/nova,imsplitbit/nova,imsplitbit/nova,dims/nova,sebrandon1/nova,fnordahl/nova,leilihh/novaha,raildo/nova,zzicewind/nova,cernops/nova,Stavitsky/nova,angdraug/nova,thomasem/nova,j-carpentier/nova,Metaswitch/calico-nova,eonpatapon/nova,tangfeixiong/nova,belmiromoreira/nova,BeyondTheClouds/nova,gooddata/openstack-nova,MountainWei/nova,raildo/nova,cernops/nova,shahar-stratoscale/nova,akash1808/nova,TwinkleChawla/nova,devendermishrajio/nova,whitepages/nova,rickerc/nova_audit,shail2810/nova,CloudServer/nova,zaina/nova