commit 360c569ce8f0bfe936d59ca91de2716958550524
Author: Peter Rajnoha <prajnoha@redhat.com>
Date:   Tue Oct 30 20:36:49 2012 +0100

    systemd: various updates and fixes
    
    Don't use lvmetad in lvm2-monitor.service ExecStop to avoid a systemd issue.
     - a systemd design issue while processing dependencies
       with socket-based activation that ends up with a hang
     - https://bugzilla.redhat.com/show_bug.cgi?id=843587
       (also tracker bug https://bugzilla.redhat.com/show_bug.cgi?id=871527)
     - not using lvmetad in this case is just a workaround, once the bug
       above is resolved, we should enable the lvmetad in that specific case
    
    Remove dependency on fedora-storage-init.service in lvm2 systemd units.
     - fedora-storage-init.service and fedora-storage-init-late.service is
       going to be separated into respective units that belong to each block
       device subsystem:
         - mpath + mdraid activated via udev solely
         - dmraid with its own dmraid-activation.service unit
         - lvm2 with the lvm2-activation-generator to generate the
           activation units runtime if lvmetad disabled
           (global/use_lvmetad=0 set in lvm.conf) and activation done
           via udev+lvmetad if lvmetad enabled (global/use_lvmetad=1 set
           in lvm.conf)
    
    Depend on lvm2-lvmetad.socket in lvm2-monitor.service systemd unit.
     - as lvm2-monitor uses lvmetad if lvmetad is enabled

diff --git a/scripts/lvm2_monitoring_systemd_red_hat.service.in b/scripts/lvm2_monitoring_systemd_red_hat.service.in
index 6c4c55f..e6b4814 100644
--- a/scripts/lvm2_monitoring_systemd_red_hat.service.in
+++ b/scripts/lvm2_monitoring_systemd_red_hat.service.in
@@ -1,8 +1,8 @@
 [Unit]
 Description=Monitoring of LVM2 mirrors, snapshots etc. using dmeventd or progress polling
 Documentation=man:dmeventd(8) man:lvcreate(8) man:lvchange(8) man:vgchange(8)
-Requires=dm-event.socket
-After=dm-event.socket fedora-storage-init.service fedora-storage-init-late.service lvm2-activation.service lvm2-lvmetad.service
+Requires=dm-event.socket lvm2-lvmetad.socket
+After=dm-event.socket lvm2-lvmetad.socket lvm2-lvmetad.service
 Before=local-fs.target
 DefaultDependencies=no
 Conflicts=shutdown.target
@@ -11,7 +11,8 @@ Conflicts=shutdown.target
 Type=oneshot
 Environment=LVM_SUPPRESS_LOCKING_FAILURE_MESSAGES=1
 ExecStart=@sbindir@/lvm vgchange --monitor y
-ExecStop=@sbindir@/lvm vgchange --monitor n
+# The lvmetad must be disabled here, it needs https://bugzilla.redhat.com/show_bug.cgi?id=843587 to be resolved first.
+ExecStop="@sbindir@/lvm vgchange --monitor n --config 'global{use_lvmetad=0}'"
 RemainAfterExit=yes
 
 [Install]