def deactivateVdi(sr_uuid, vdi_uuid, vhd_path):
name_space = lvhdutil.NS_PREFIX_LVM + sr_uuid
lock = Lock(vdi_uuid, name_space)
lock.acquire()
try:
count = RefCounter.put(vdi_uuid, False, name_space)
if count > 0:
return
try:
lvutil.deactivateNoRefcount(vhd_path)
except Exception as e:
util.SMlog(" lv de-activate failed for %s with error %s" %
(vhd_path, str(e)))
RefCounter.get(vdi_uuid, False, name_space)
finally:
lock.release()
def deactivateVdi(sr_uuid, vdi_uuid, vhd_path):
name_space = lvhdutil.NS_PREFIX_LVM + sr_uuid
lock = Lock(vdi_uuid, name_space)
lock.acquire()
try:
count = RefCounter.put(vdi_uuid, False, name_space)
if count > 0:
return
try:
lvutil.deactivateNoRefcount(vhd_path)
except Exception, e:
util.SMlog(" lv de-activate failed for %s with error %s" %
(vhd_path, str(e)))
RefCounter.get(vdi_uuid, False, name_space)
finally:
lock.release()
def deactivate(self, ns, ref, lvName, binary):
lock = Lock(ref, ns)
lock.acquire()
try:
count = RefCounter.put(ref, binary, ns)
if count > 0:
return
refreshed = False
while True:
lvInfo = self.getLVInfo(lvName)
if len(lvInfo) != 1:
raise util.SMException("LV info not found for %s" % ref)
info = lvInfo[lvName]
if info.open:
if refreshed:
# should never happen in normal conditions but in some
# failure cases the recovery code may not be able to
# determine what the correct refcount should be, so it
# is not unthinkable that the value might be out of
# sync
util.SMlog("WARNING: deactivate: LV %s open" % lvName)
return
# check again in case the cached value is stale
self.refresh()
refreshed = True
else:
break
try:
self.deactivateNoRefcount(lvName)
except util.CommandException:
self.refresh()
if self.getLVInfo(lvName):
util.SMlog("LV %s could not be deactivated" % lvName)
if lvInfo[lvName].active:
util.SMlog("Reverting the refcount change")
RefCounter.get(ref, binary, ns)
raise
else:
util.SMlog("LV %s not found" % lvName)
finally:
lock.release()
def deactivate(self, ns, ref, lvName, binary):
lock = Lock(ref, ns)
lock.acquire()
try:
count = RefCounter.put(ref, binary, ns)
if count > 0:
return
refreshed = False
while True:
lvInfo = self.getLVInfo(lvName)
if len(lvInfo) != 1:
raise util.SMException("LV info not found for %s" % ref)
info = lvInfo[lvName]
if info.open:
if refreshed:
# should never happen in normal conditions but in some
# failure cases the recovery code may not be able to
# determine what the correct refcount should be, so it
# is not unthinkable that the value might be out of
# sync
util.SMlog("WARNING: deactivate: LV %s open" % lvName)
return
# check again in case the cached value is stale
self.refresh()
refreshed = True
else:
break
try:
self.deactivateNoRefcount(lvName)
except util.CommandException:
self.refresh()
if self.getLVInfo(lvName):
util.SMlog("LV %s could not be deactivated" % lvName)
if lvInfo[lvName].active:
util.SMlog("Reverting the refcount change")
RefCounter.get(ref, binary, ns)
raise
else:
util.SMlog("LV %s not found" % lvName)
finally:
lock.release()
def activate(self, ns, ref, lvName, binary):
lock = Lock(ref, ns)
lock.acquire()
try:
count = RefCounter.get(ref, binary, ns)
if count == 1:
try:
self.activateNoRefcount(lvName)
except util.CommandException:
RefCounter.put(ref, binary, ns)
raise
finally:
lock.release()
def activate(self, ns, ref, lvName, binary):
lock = Lock(ref, ns)
lock.acquire()
try:
count = RefCounter.get(ref, binary, ns)
if count == 1:
try:
self.activateNoRefcount(lvName)
except util.CommandException:
RefCounter.put(ref, binary, ns)
raise
finally:
lock.release()
